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From: Bernhard Schmidt <bschmidt@FreeBSD.org>
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Subject: svn commit: r216392 - stable/8/sys/dev/iwn
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Author: bschmidt
Date: Sun Dec 12 10:27:11 2010
New Revision: 216392
URL: http://svn.freebsd.org/changeset/base/216392

Log:
  MFC r216195:
  For 6000 series and newer devices the DC calibration results are no
  longer requested of the boot firmware. Instead of sending those results
  to the runtime firmware the firmware is told to do the DC calibration
  itself.
  
  Approved by:	re (kib)

Modified:
  stable/8/sys/dev/iwn/if_iwn.c
  stable/8/sys/dev/iwn/if_iwnvar.h
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/dev/iwn/if_iwn.c
==============================================================================
--- stable/8/sys/dev/iwn/if_iwn.c	Sun Dec 12 08:52:13 2010	(r216391)
+++ stable/8/sys/dev/iwn/if_iwn.c	Sun Dec 12 10:27:11 2010	(r216392)
@@ -223,7 +223,7 @@ static int	iwn5000_save_calib_result(str
 		    struct iwn_phy_calib *, int, int);
 static void	iwn5000_free_calib_results(struct iwn_softc *);
 static int	iwn5000_chrystal_calib(struct iwn_softc *);
-static int	iwn5000_send_calib_query(struct iwn_softc *);
+static int	iwn5000_send_calib_query(struct iwn_softc *, uint32_t);
 static int	iwn5000_rx_calib_result(struct iwn_softc *,
 		    struct iwn_rx_desc *, struct iwn_rx_data *);
 static int	iwn5000_send_wimax_coex(struct iwn_softc *);
@@ -756,6 +756,7 @@ iwn_hal_attach(struct iwn_softc *sc)
 		default:
 			sc->txchainmask = IWN_ANT_ABC;
 			sc->rxchainmask = IWN_ANT_ABC;
+			sc->calib_runtime = IWN_CALIB_DC;
 			break;
 		}
 		sc->calib_init = IWN_CALIB_XTAL | IWN_CALIB_LO |
@@ -767,8 +768,9 @@ iwn_hal_attach(struct iwn_softc *sc)
 		sc->fwname = "iwn6050fw";
 		sc->txchainmask = IWN_ANT_AB;
 		sc->rxchainmask = IWN_ANT_AB;
-		sc->calib_init = IWN_CALIB_XTAL | IWN_CALIB_DC | IWN_CALIB_LO |
+		sc->calib_init = IWN_CALIB_XTAL | IWN_CALIB_LO |
 		    IWN_CALIB_TX_IQ | IWN_CALIB_BASE_BAND;
+		sc->calib_runtime = IWN_CALIB_DC;
 		break;
 	case IWN_HW_REV_TYPE_6005:
 		sc->sc_hal = &iwn5000_hal;
@@ -778,6 +780,7 @@ iwn_hal_attach(struct iwn_softc *sc)
 		sc->rxchainmask = IWN_ANT_AB;
 		sc->calib_init = IWN_CALIB_XTAL | IWN_CALIB_LO |
 		    IWN_CALIB_TX_IQ | IWN_CALIB_BASE_BAND;
+		sc->calib_runtime = IWN_CALIB_DC;
 		break;
 	default:
 		device_printf(sc->sc_dev, "adapter type %d not supported\n",
@@ -5316,7 +5319,7 @@ iwn5000_chrystal_calib(struct iwn_softc 
  * only once at first boot.
  */
 static int
-iwn5000_send_calib_query(struct iwn_softc *sc)
+iwn5000_send_calib_query(struct iwn_softc *sc, uint32_t cfg)
 {
 #define	CALIB_INIT_CFG	0xffffffff;
 	struct iwn5000_calib_config cmd;
@@ -5324,12 +5327,15 @@ iwn5000_send_calib_query(struct iwn_soft
 
 	memset(&cmd, 0, sizeof cmd);
 	cmd.ucode.once.enable = CALIB_INIT_CFG;
-	cmd.ucode.once.start  = CALIB_INIT_CFG;
-	cmd.ucode.once.send   = CALIB_INIT_CFG;
-	cmd.ucode.flags       = CALIB_INIT_CFG;
+	if (cfg == 0) {
+		cmd.ucode.once.start  = CALIB_INIT_CFG;
+		cmd.ucode.once.send   = CALIB_INIT_CFG;
+		cmd.ucode.flags       = CALIB_INIT_CFG;
+	} else
+		cmd.ucode.once.start  = cfg;
 
-	DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: query calibration results\n",
-	    __func__);
+	DPRINTF(sc, IWN_DEBUG_CALIBRATE,
+	    "%s: query calibration results, cfg %x\n", __func__, cfg);
 
 	error = iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof cmd, 0);
 	if (error != 0)
@@ -5559,7 +5565,7 @@ iwn5000_post_alive(struct iwn_softc *sc)
 		 * Query other calibration results from the initialization
 		 * firmware.
 		 */
-		error = iwn5000_send_calib_query(sc);
+		error = iwn5000_send_calib_query(sc, 0);
 		if (error != 0) {
 			device_printf(sc->sc_dev,
 			    "%s: could not query calibration, error=%d\n",
@@ -5579,6 +5585,19 @@ iwn5000_post_alive(struct iwn_softc *sc)
 		 * firmware to the runtime firmware.
 		 */
 		error = iwn5000_send_calib_results(sc);
+
+		/*
+		 * Tell the runtime firmware to do certain calibration types.
+		 */
+		if (sc->calib_runtime != 0) {
+			error = iwn5000_send_calib_query(sc, sc->calib_runtime);
+			if (error != 0) {
+				device_printf(sc->sc_dev,
+				    "%s: could not send query calibration, "
+				    "error=%d, cfg=%x\n", __func__, error,
+				    sc->calib_runtime);
+			}
+		}
 	}
 	return error;
 }

Modified: stable/8/sys/dev/iwn/if_iwnvar.h
==============================================================================
--- stable/8/sys/dev/iwn/if_iwnvar.h	Sun Dec 12 08:52:13 2010	(r216391)
+++ stable/8/sys/dev/iwn/if_iwnvar.h	Sun Dec 12 10:27:11 2010	(r216392)
@@ -264,6 +264,7 @@ struct iwn_softc {
 	int			calib_cnt;
 	struct iwn_calib_state	calib;
 	u_int			calib_init;
+	u_int			calib_runtime;
 #define	IWN_CALIB_XTAL			(1 << IWN_CALIB_IDX_XTAL)
 #define	IWN_CALIB_DC			(1 << IWN_CALIB_IDX_DC)
 #define	IWN_CALIB_LO			(1 << IWN_CALIB_IDX_LO)

From owner-svn-src-stable-8@FreeBSD.ORG  Mon Dec 13 10:27:36 2010
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From: Michael Tuexen <tuexen@FreeBSD.org>
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Subject: svn commit: r216402 - stable/8/sys/netinet
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Author: tuexen
Date: Mon Dec 13 10:27:35 2010
New Revision: 216402
URL: http://svn.freebsd.org/changeset/base/216402

Log:
  MFC r216188:
  
  Fix a bug where also the number of non-renegable gap reports
  was considered to be potentially renegable.
  
  Approved by: re

Modified:
  stable/8/sys/netinet/sctp_indata.c
  stable/8/sys/netinet/sctp_input.c
  stable/8/sys/netinet/sctp_structs.h
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/netinet/sctp_indata.c
==============================================================================
--- stable/8/sys/netinet/sctp_indata.c	Mon Dec 13 08:56:30 2010	(r216401)
+++ stable/8/sys/netinet/sctp_indata.c	Mon Dec 13 10:27:35 2010	(r216402)
@@ -3081,14 +3081,17 @@ sctp_handle_segments(struct mbuf *m, int
 	int num_frs = 0;
 	int chunk_freed;
 	int non_revocable;
-	uint16_t frag_strt, frag_end;
-	uint32_t last_frag_high;
+	uint16_t frag_strt, frag_end, prev_frag_end;
 
-	tp1 = NULL;
-	last_frag_high = 0;
+	tp1 = TAILQ_FIRST(&asoc->sent_queue);
+	prev_frag_end = 0;
 	chunk_freed = 0;
 
 	for (i = 0; i < (num_seg + num_nr_seg); i++) {
+		if (i == num_seg) {
+			prev_frag_end = 0;
+			tp1 = TAILQ_FIRST(&asoc->sent_queue);
+		}
 		frag = (struct sctp_gap_ack_block *)sctp_m_getptr(m, *offset,
 		    sizeof(struct sctp_gap_ack_block), (uint8_t *) & block);
 		*offset += sizeof(block);
@@ -3097,58 +3100,29 @@ sctp_handle_segments(struct mbuf *m, int
 		}
 		frag_strt = ntohs(frag->start);
 		frag_end = ntohs(frag->end);
-		/* some sanity checks on the fragment offsets */
+
 		if (frag_strt > frag_end) {
-			/* this one is malformed, skip */
+			/* This gap report is malformed, skip it. */
 			continue;
 		}
-		if (compare_with_wrap((frag_end + last_tsn), *biggest_tsn_acked,
-		    MAX_TSN))
-			*biggest_tsn_acked = frag_end + last_tsn;
-
-		/* mark acked dgs and find out the highestTSN being acked */
-		if (tp1 == NULL) {
+		if (frag_strt <= prev_frag_end) {
+			/* This gap report is not in order, so restart. */
 			tp1 = TAILQ_FIRST(&asoc->sent_queue);
-			/* save the locations of the last frags */
-			last_frag_high = frag_end + last_tsn;
-		} else {
-			/*
-			 * now lets see if we need to reset the queue due to
-			 * a out-of-order SACK fragment
-			 */
-			if (compare_with_wrap(frag_strt + last_tsn,
-			    last_frag_high, MAX_TSN)) {
-				/*
-				 * if the new frag starts after the last TSN
-				 * frag covered, we are ok and this one is
-				 * beyond the last one
-				 */
-				;
-			} else {
-				/*
-				 * ok, they have reset us, so we need to
-				 * reset the queue this will cause extra
-				 * hunting but hey, they chose the
-				 * performance hit when they failed to order
-				 * their gaps
-				 */
-				tp1 = TAILQ_FIRST(&asoc->sent_queue);
-			}
-			last_frag_high = frag_end + last_tsn;
+		}
+		if (compare_with_wrap((last_tsn + frag_end), *biggest_tsn_acked, MAX_TSN)) {
+			*biggest_tsn_acked = last_tsn + frag_end;
 		}
 		if (i < num_seg) {
 			non_revocable = 0;
 		} else {
 			non_revocable = 1;
 		}
-		if (i == num_seg) {
-			tp1 = NULL;
-		}
 		if (sctp_process_segment_range(stcb, &tp1, last_tsn, frag_strt, frag_end,
 		    non_revocable, &num_frs, biggest_newly_acked_tsn,
 		    this_sack_lowest_newack, ecn_seg_sums)) {
 			chunk_freed = 1;
 		}
+		prev_frag_end = frag_end;
 	}
 	if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FR_LOGGING_ENABLE) {
 		if (num_frs)
@@ -4817,7 +4791,7 @@ sctp_handle_sack(struct mbuf *m, int off
 		}
 	}
 	/********************************************/
-	/* drop the acked chunks from the sendqueue */
+	/* drop the acked chunks from the sentqueue */
 	/********************************************/
 	asoc->last_acked_seq = cum_ack;
 
@@ -4925,9 +4899,10 @@ done_with_it:
 	 * we had some before and now we have NONE.
 	 */
 
-	if (num_seg)
+	if (num_seg) {
 		sctp_check_for_revoked(stcb, asoc, cum_ack, biggest_tsn_acked);
-	else if (asoc->saw_sack_with_frags) {
+		asoc->saw_sack_with_frags = 1;
+	} else if (asoc->saw_sack_with_frags) {
 		int cnt_revoked = 0;
 
 		tp1 = TAILQ_FIRST(&asoc->sent_queue);
@@ -4963,10 +4938,10 @@ done_with_it:
 		}
 		asoc->saw_sack_with_frags = 0;
 	}
-	if (num_seg || num_nr_seg)
-		asoc->saw_sack_with_frags = 1;
+	if (num_nr_seg > 0)
+		asoc->saw_sack_with_nr_frags = 1;
 	else
-		asoc->saw_sack_with_frags = 0;
+		asoc->saw_sack_with_nr_frags = 0;
 
 	/* JRS - Use the congestion control given in the CC module */
 	asoc->cc_functions.sctp_cwnd_update_after_sack(stcb, asoc, accum_moved, reneged_all, will_exit_fast_recovery);

Modified: stable/8/sys/netinet/sctp_input.c
==============================================================================
--- stable/8/sys/netinet/sctp_input.c	Mon Dec 13 08:56:30 2010	(r216401)
+++ stable/8/sys/netinet/sctp_input.c	Mon Dec 13 10:27:35 2010	(r216402)
@@ -4644,6 +4644,7 @@ process_control_chunks:
 				    ((compare_with_wrap(cum_ack, stcb->asoc.last_acked_seq, MAX_TSN)) ||
 				    (cum_ack == stcb->asoc.last_acked_seq)) &&
 				    (stcb->asoc.saw_sack_with_frags == 0) &&
+				    (stcb->asoc.saw_sack_with_nr_frags == 0) &&
 				    (!TAILQ_EMPTY(&stcb->asoc.sent_queue))
 				    ) {
 					/*
@@ -4737,6 +4738,7 @@ process_control_chunks:
 				    ((compare_with_wrap(cum_ack, stcb->asoc.last_acked_seq, MAX_TSN)) ||
 				    (cum_ack == stcb->asoc.last_acked_seq)) &&
 				    (stcb->asoc.saw_sack_with_frags == 0) &&
+				    (stcb->asoc.saw_sack_with_nr_frags == 0) &&
 				    (!TAILQ_EMPTY(&stcb->asoc.sent_queue))) {
 					/*
 					 * We have a SIMPLE sack having no

Modified: stable/8/sys/netinet/sctp_structs.h
==============================================================================
--- stable/8/sys/netinet/sctp_structs.h	Mon Dec 13 08:56:30 2010	(r216401)
+++ stable/8/sys/netinet/sctp_structs.h	Mon Dec 13 10:27:35 2010	(r216402)
@@ -1058,6 +1058,7 @@ struct sctp_association {
 	uint8_t delayed_connection;
 	uint8_t ifp_had_enobuf;
 	uint8_t saw_sack_with_frags;
+	uint8_t saw_sack_with_nr_frags;
 	uint8_t in_asocid_hash;
 	uint8_t assoc_up_sent;
 	uint8_t adaptation_needed;

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Subject: svn commit: r216403 - stable/8/sys/amd64/amd64
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Author: kib
Date: Mon Dec 13 10:40:16 2010
New Revision: 216403
URL: http://svn.freebsd.org/changeset/base/216403

Log:
  MFC r216231:
  Do not leak %rdx value in the previous image to the new image after
  execve(2).
  
  Approved by:	re (bz)

Modified:
  stable/8/sys/amd64/amd64/machdep.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/amd64/amd64/machdep.c
==============================================================================
--- stable/8/sys/amd64/amd64/machdep.c	Mon Dec 13 10:27:35 2010	(r216402)
+++ stable/8/sys/amd64/amd64/machdep.c	Mon Dec 13 10:40:16 2010	(r216403)
@@ -874,6 +874,7 @@ exec_setregs(td, entry, stack, ps_string
 	regs->tf_fs = _ufssel;
 	regs->tf_gs = _ugssel;
 	regs->tf_flags = TF_HASSEGS;
+	td->td_retval[1] = 0;
 
 	/*
 	 * Reset the hardware debug registers if they were in use.

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Author: rwatson
Date: Mon Dec 13 12:34:35 2010
New Revision: 216406
URL: http://svn.freebsd.org/changeset/base/216406

Log:
  Merge r216365 from head to stable/8:
  
    Derive the XENHVM kernel from GENERIC, adding only the options required
    to support PV drivers (such as xenpci), and non-adptive locking (along
    with a comment about why).
  
    This change eliminates the synchronisation problem between GENERIC and
    XENHVM, which had become severely rotted in HEAD, and in 8-STABLE
    included non-production kernel debugging features such as WITNESS.
  
    However, it comes at the cost of enabling devices and options that may
    not be present under Xen (such as random ethernet cards).  For now, opt
    for a simpler kernel configuration file rather than using nooptions/
    nodevice to enumerate and eliminate them.  This leads to a somewhat
    larger XENHVM kernel.
  
    This is an MFC candidate for 8-STABLE before 8.2, in order to provide
    a production-worthy XENHVM kernel configuration for amd64.
  
    Discussed with:       gibbs, cperciva
    Reported by:          Piete Brooks <Piete.Brooks at cl.cam.ac.uk>
    Sponsored by:         DARPA, AFRL
  
  Approved by:	re (kib)

Modified:
  stable/8/sys/amd64/conf/XENHVM
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/amd64/conf/XENHVM
==============================================================================
--- stable/8/sys/amd64/conf/XENHVM	Mon Dec 13 12:15:46 2010	(r216405)
+++ stable/8/sys/amd64/conf/XENHVM	Mon Dec 13 12:34:35 2010	(r216406)
@@ -1,161 +1,23 @@
 #
 # XENHVM -- Xen HVM kernel configuration file for FreeBSD/amd64
 #
-# For more information on this file, please read the config(5) manual page,
-# and/or the handbook section on Kernel Configuration Files:
-#
-#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
-#
-# The handbook is also available locally in /usr/share/doc/handbook
-# if you've installed the doc distribution, otherwise always see the
-# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
-# latest information.
-#
-# An exhaustive list of options and more detailed explanations of the
-# device lines is also present in the ../../conf/NOTES and NOTES files.
-# If you are in doubt as to the purpose or necessity of a line, check first
-# in NOTES.
-#
 # $FreeBSD$
-
-cpu		HAMMER
-ident		XENHVM
-
-# To statically compile in device wiring instead of /boot/device.hints
-#hints		"GENERIC.hints"		# Default places to look for devices.
-
-# Use the following to compile in values accessible to the kernel
-# through getenv() (or kenv(1) in userland). The format of the file
-# is 'variable=value', see kenv(1)
 #
-# env		"GENERIC.env"
+include		GENERIC
+ident		XENHVM
 
-makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
 makeoptions	MODULES_OVERRIDE=""
 
-options 	SCHED_ULE		# ULE scheduler
-options 	PREEMPTION		# Enable kernel thread preemption
-options 	INET			# InterNETworking
-options 	INET6			# IPv6 communications protocols
-options 	SCTP			# Stream Control Transmission Protocol
-options 	FFS			# Berkeley Fast Filesystem
-options 	SOFTUPDATES		# Enable FFS soft updates support
-options 	UFS_ACL			# Support for access control lists
-options 	UFS_DIRHASH		# Improve performance on big directories
-options 	UFS_GJOURNAL		# Enable gjournal-based UFS journaling
-options 	MD_ROOT			# MD is a potential root device
-options 	NFSCLIENT		# Network Filesystem Client
-options 	NFSSERVER		# Network Filesystem Server
-options 	NFSLOCKD		# Network Lock Manager
-options 	NFS_ROOT		# NFS usable as /, requires NFSCLIENT
-options 	MSDOSFS			# MSDOS Filesystem
-options 	CD9660			# ISO 9660 Filesystem
-options 	PROCFS			# Process filesystem (requires PSEUDOFS)
-options 	PSEUDOFS		# Pseudo-filesystem framework
-options 	GEOM_PART_GPT		# GUID Partition Tables.
-options 	GEOM_LABEL		# Provides labelization
-options 	COMPAT_43TTY		# BSD 4.3 TTY compat (sgtty)
-options 	COMPAT_FREEBSD32	# Compatible with i386 binaries
-options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
-options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
-options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
-options 	KTRACE			# ktrace(1) support
-options 	STACK			# stack(9) support
-options 	SYSVSHM			# SYSV-style shared memory
-options 	SYSVMSG			# SYSV-style message queues
-options 	SYSVSEM			# SYSV-style semaphores
-options 	_KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
-options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
-options 	HWPMC_HOOKS		# Necessary kernel hooks for hwpmc(4)
-options 	AUDIT			# Security event auditing
-#options 	KDTRACE_FRAME		# Ensure frames are compiled in
-#options 	KDTRACE_HOOKS		# Kernel DTrace hooks
+#
+# Adaptive locks rely on a lock-free pointer read to determine the run state
+# of the thread holding a lock when under contention; under a virtualisation
+# system, the thread run state may not accurately reflect whether the thread
+# (or rather its host VCPU) is actually executing.  As such, disable this
+# optimisation.
+#
 options 	NO_ADAPTIVE_MUTEXES
 options 	NO_ADAPTIVE_RWLOCKS
 
-# Debugging for use in -current
-options 	KDB			# Enable kernel debugger support.
-options 	DDB			# Support DDB.
-options 	GDB			# Support remote GDB.
-options 	INVARIANTS		# Enable calls of extra sanity checking
-options 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
-options 	WITNESS			# Enable checks to detect deadlocks and cycles
-options 	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
-
-# Make an SMP-capable kernel by default
-options 	SMP			# Symmetric MultiProcessor Kernel
-
-# CPU frequency control
-device		cpufreq
-
-# Bus support.
-device		acpi
-device		pci
-
-# Floppy drives
-device		fdc
-
 # Xen HVM support
 options 	XENHVM
 device		xenpci
-
-# ATA and ATAPI devices
-device		ata
-device		atadisk		# ATA disk drives
-device		ataraid		# ATA RAID drives
-device		atapicd		# ATAPI CDROM drives
-device		atapifd		# ATAPI floppy drives
-device		atapist		# ATAPI tape drives
-options 	ATA_STATIC_ID	# Static device numbering
-
-# SCSI peripherals
-device		scbus		# SCSI bus (required for SCSI)
-device		ch		# SCSI media changers
-device		da		# Direct Access (disks)
-device		sa		# Sequential Access (tape etc)
-device		cd		# CD
-device		pass		# Passthrough device (direct SCSI access)
-device		ses		# SCSI Environmental Services (and SAF-TE)
-
-
-# atkbdc0 controls both the keyboard and the PS/2 mouse
-device		atkbdc		# AT keyboard controller
-device		atkbd		# AT keyboard
-device		psm		# PS/2 mouse
-
-device		kbdmux		# keyboard multiplexer
-
-device		vga		# VGA video card driver
-
-device		splash		# Splash screen and screen saver support
-
-# syscons is the default console driver, resembling an SCO console
-device		sc
-
-device		agp		# support several AGP chipsets
-
-# Serial (COM) ports
-device		uart		# Generic UART driver
-
-# PCI Ethernet NICs that use the common MII bus controller code.
-# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
-device		miibus		# MII bus support
-device		re		# RealTek 8139C+/8169/8169S/8110S
-
-# Pseudo devices.
-device		loop		# Network loopback
-device		random		# Entropy device
-device		ether		# Ethernet support
-device		tun		# Packet tunnel.
-device		pty		# BSD-style compatibility pseudo ttys
-device		md		# Memory "disks"
-device		gif		# IPv6 and IPv4 tunneling
-device		faith		# IPv6-to-IPv4 relaying (translation)
-device		firmware	# firmware assist module
-
-# The `bpf' device enables the Berkeley Packet Filter.
-# Be aware of the administrative consequences of enabling this!
-# Note that 'bpf' is required for DHCP.
-device		bpf		# Berkeley packet filter

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On Mon, 13 Dec 2010 12:34:35 +0000 (UTC)
Robert Watson <rwatson@FreeBSD.org> wrote:

> Author: rwatson
> Date: Mon Dec 13 12:34:35 2010
> New Revision: 216406
> URL: http://svn.freebsd.org/changeset/base/216406
>=20
> Log:
>   Merge r216365 from head to stable/8:
>  =20
>     Derive the XENHVM kernel from GENERIC, adding only the options
> required to support PV drivers (such as xenpci), and non-adptive
> locking (along with a comment about why).
>  =20
>     This change eliminates the synchronisation problem between
> GENERIC and XENHVM, which had become severely rotted in HEAD, and in
> 8-STABLE included non-production kernel debugging features such as
> WITNESS.=20
>     However, it comes at the cost of enabling devices and options
> that may not be present under Xen (such as random ethernet cards).
> For now, opt for a simpler kernel configuration file rather than
> using nooptions/ nodevice to enumerate and eliminate them.  This
> leads to a somewhat larger XENHVM kernel.
>  =20
>     This is an MFC candidate for 8-STABLE before 8.2, in order to
> provide a production-worthy XENHVM kernel configuration for amd64.
>  =20
>     Discussed with:       gibbs, cperciva
>     Reported by:          Piete Brooks <Piete.Brooks at cl.cam.ac.uk>
>     Sponsored by:         DARPA, AFRL
>  =20
>   Approved by:	re (kib)

What about the same for i386?


BTW, on a i386R trying to do a
 make buildworld && make buildkernel KERNCONF=3DVPS
yesterday resulted in:

cc -c -O -pipe  -std=3Dc99 -g -Wall -Wredundant-decls -Wnested-externs -Wst=
rict-prototypes  -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual =
 -Wundef -Wno-pointer-sign -fformat-extensions -nostdinc  -I. -I/usr/src/sy=
s -I/usr/src/sys/contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -inclu=
de opt_global.h -fno-common -finline-limit=3D8000 --param inline-unit-growt=
h=3D100 --param large-function-growth=3D1000  -mno-align-long-strings -mpre=
ferred-stack-boundary=3D2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3=
 -ffreestanding -fstack-protector -Werror  /usr/src/sys/i386/xen/xen_machde=
p.c
/usr/src/sys/i386/xen/xen_machdep.c: In function 'initvalues':
/usr/src/sys/i386/xen/xen_machdep.c:1077: error: 'IdlePTDnew' undeclared (f=
irst use in this function)
/usr/src/sys/i386/xen/xen_machdep.c:1077: error: (Each undeclared identifie=
r is reported only once
/usr/src/sys/i386/xen/xen_machdep.c:1077: error: for each function it appea=
rs in.)
/usr/src/sys/i386/xen/xen_machdep.c:1082: error: 'IdlePTDnewma' undeclared =
(first use in this function)
/usr/src/sys/i386/xen/xen_machdep.c:1085: error: 'IdlePDPTnew' undeclared (=
first use in this function)
/usr/src/sys/i386/xen/xen_machdep.c:1124: error: 'IdlePDPT' undeclared (fir=
st use in this function)
/usr/src/sys/i386/xen/xen_machdep.c:1125: error: 'IdlePDPTma' undeclared (f=
irst use in this function)
/usr/src/sys/i386/xen/xen_machdep.c:1125: error: 'IdlePDPTnewma' undeclared=
 (first use in this function)
cc1: warnings being treated as errors
/usr/src/sys/i386/xen/xen_machdep.c:893: warning: unused variable 'pdir_sha=
dow_ma'
*** Error code 1


Maybe I have something wrong in the KERNCONF?

 # cat /root/kernels/
#
# XEN -- Kernel configuration for i386 XEN DomU
#
# $FreeBSD: src/sys/i386/conf/XEN,v 1.9.2.2 2010/11/28 16:25:16 cperciva Ex=
p $

cpu             I686_CPU
ident           XEN

makeoptions     DEBUG=3D-g                # Build kernel with gdb(1) debug =
symbols
#makeoptions    MODULES_OVERRIDE=3D""

options         SCHED_ULE               # ULE scheduler
options         PREEMPTION              # Enable kernel thread preemption

options         INET                    # InterNETworking
options         INET6                   # IPv6 communications protocols
options         SCTP                    # Stream Control Transmission Proto=
col
options         FFS                     # Berkeley Fast Filesystem
options         SOFTUPDATES             # Enable FFS soft updates support
options         UFS_ACL                 # Support for access control lists
options         UFS_DIRHASH             # Improve performance on big direct=
ories
options         GEOM_LABEL              # Provides labelization
options         COMPAT_43TTY            # BSD 4.3 TTY compat (sgtty)
options         COMPAT_FREEBSD7         # Compatible with FreeBSD7
options         KTRACE                  # ktrace(1) support
options         STACK                   # stack(9) support
options         SYSVSHM                 # SYSV-style shared memory
options         SYSVMSG                 # SYSV-style message queues
options         SYSVSEM                 # SYSV-style semaphores
options         P1003_1B_SEMAPHORES     # POSIX-style semaphores
options         _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time exte=
nsions
options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev

# Debugging for use in -current
options         KDB                     # Enable kernel debugger support.
#options        DDB                     # Support DDB.
#options        GDB                     # Support remote GDB.
#options        INVARIANTS              # Enable calls of extra sanity chec=
king
#options        INVARIANT_SUPPORT       # Extra sanity checks of internal s=
tructures, required by INVARIANTS
#options        WITNESS                 # Enable checks to detect deadlocks=
 and cycles
#options        WITNESS_SKIPSPIN        # Don't run witness on spinlocks fo=
r speed

nooption        NATIVE
option          XEN
nodevice        atpic
nodevice        isa
options         MCLSHIFT=3D12

# To make an SMP kernel, the next two lines are needed
options         SMP                     # Symmetric MultiProcessor Kernel
device          apic                    # I/O APIC


#device         atkbdc          # AT keyboard controller
#device         atkbd           # AT keyboard
#device         psm             # PS/2 mouse
device          pci

#device         kbdmux          # keyboard multiplexer

device          loop            # Network loopback
device          random          # Entropy device
device          ether           # Ethernet support
device          pty             # Pseudo-ttys (telnet etc)
device          bpf             # Berkeley packet filter

device          eisa
device          ata
options         ATA_STATIC_ID   # Static device numbering

device          vga             # VGA video card driver
options         VGA_NO_FONT_LOADING
options         VGA_NO_MODE_CHANGE

# syscons is the default console driver, resembling an SCO console
device          sc
options         SC_NO_CUTPASTE
options         SC_NO_FONT_LOADING
options         SC_NO_HISTORY
options         SC_NO_MODE_CHANGE
options         SC_NO_SYSMOUSE

device          pmtimer



--=20
IOnut - Un^d^dregistered ;) FreeBSD "user"
  "Intellectual Property" is   nowhere near as valuable   as "Intellect"
FreeBSD committer -> itetcu@FreeBSD.org, PGP Key ID 057E9F8B493A297B

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Subject: Re: svn commit: r216406 - stable/8/sys/amd64/conf
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On 13 Dec 2010, at 14:00, Ion-Mihai Tetcu wrote:

>>   Derive the XENHVM kernel from GENERIC, adding only the options
>> required to support PV drivers (such as xenpci), and non-adptive
>> locking (along with a comment about why).
>=20
> What about the same for i386?

We don't currently support combining PV drivers with a non-PV kernel on =
i386; nor do we support a pure PV kernel on amd64. The former strikes me =
as more of a problem than the latter. Other than Amazon EC2, it seems =
most interesting targets will support HVM in practice, and benefit from =
PV drivers, but not require a pure PV kernel (i.e., Xen-modified VM =
system).

Your kernel configuration is likely trying to build options XEN on i386 =
without PAE; we currently require options PAE to build a PV Xen kernel =
on i386. (It also looks like "options XEN" is spelled "option XEN" in =
your config file below?)

Robert

>=20
>=20
> BTW, on a i386R trying to do a
> make buildworld && make buildkernel KERNCONF=3DVPS
> yesterday resulted in:
>=20
> cc -c -O -pipe  -std=3Dc99 -g -Wall -Wredundant-decls -Wnested-externs =
-Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Winline =
-Wcast-qual  -Wundef -Wno-pointer-sign -fformat-extensions -nostdinc  =
-I. -I/usr/src/sys -I/usr/src/sys/contrib/altq -D_KERNEL =
-DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -fno-common =
-finline-limit=3D8000 --param inline-unit-growth=3D100 --param =
large-function-growth=3D1000  -mno-align-long-strings =
-mpreferred-stack-boundary=3D2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2 =
-mno-sse3 -ffreestanding -fstack-protector -Werror  =
/usr/src/sys/i386/xen/xen_machdep.c
> /usr/src/sys/i386/xen/xen_machdep.c: In function 'initvalues':
> /usr/src/sys/i386/xen/xen_machdep.c:1077: error: 'IdlePTDnew' =
undeclared (first use in this function)
> /usr/src/sys/i386/xen/xen_machdep.c:1077: error: (Each undeclared =
identifier is reported only once
> /usr/src/sys/i386/xen/xen_machdep.c:1077: error: for each function it =
appears in.)
> /usr/src/sys/i386/xen/xen_machdep.c:1082: error: 'IdlePTDnewma' =
undeclared (first use in this function)
> /usr/src/sys/i386/xen/xen_machdep.c:1085: error: 'IdlePDPTnew' =
undeclared (first use in this function)
> /usr/src/sys/i386/xen/xen_machdep.c:1124: error: 'IdlePDPT' undeclared =
(first use in this function)
> /usr/src/sys/i386/xen/xen_machdep.c:1125: error: 'IdlePDPTma' =
undeclared (first use in this function)
> /usr/src/sys/i386/xen/xen_machdep.c:1125: error: 'IdlePDPTnewma' =
undeclared (first use in this function)
> cc1: warnings being treated as errors
> /usr/src/sys/i386/xen/xen_machdep.c:893: warning: unused variable =
'pdir_shadow_ma'
> *** Error code 1
>=20
>=20
> Maybe I have something wrong in the KERNCONF?
>=20
> # cat /root/kernels/
> #
> # XEN -- Kernel configuration for i386 XEN DomU
> #
> # $FreeBSD: src/sys/i386/conf/XEN,v 1.9.2.2 2010/11/28 16:25:16 =
cperciva Exp $
>=20
> cpu             I686_CPU
> ident           XEN
>=20
> makeoptions     DEBUG=3D-g                # Build kernel with gdb(1) =
debug symbols
> #makeoptions    MODULES_OVERRIDE=3D""
>=20
> options         SCHED_ULE               # ULE scheduler
> options         PREEMPTION              # Enable kernel thread =
preemption
>=20
> options         INET                    # InterNETworking
> options         INET6                   # IPv6 communications =
protocols
> options         SCTP                    # Stream Control Transmission =
Protocol
> options         FFS                     # Berkeley Fast Filesystem
> options         SOFTUPDATES             # Enable FFS soft updates =
support
> options         UFS_ACL                 # Support for access control =
lists
> options         UFS_DIRHASH             # Improve performance on big =
directories
> options         GEOM_LABEL              # Provides labelization
> options         COMPAT_43TTY            # BSD 4.3 TTY compat (sgtty)
> options         COMPAT_FREEBSD7         # Compatible with FreeBSD7
> options         KTRACE                  # ktrace(1) support
> options         STACK                   # stack(9) support
> options         SYSVSHM                 # SYSV-style shared memory
> options         SYSVMSG                 # SYSV-style message queues
> options         SYSVSEM                 # SYSV-style semaphores
> options         P1003_1B_SEMAPHORES     # POSIX-style semaphores
> options         _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time =
extensions
> options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
>=20
> # Debugging for use in -current
> options         KDB                     # Enable kernel debugger =
support.
> #options        DDB                     # Support DDB.
> #options        GDB                     # Support remote GDB.
> #options        INVARIANTS              # Enable calls of extra sanity =
checking
> #options        INVARIANT_SUPPORT       # Extra sanity checks of =
internal structures, required by INVARIANTS
> #options        WITNESS                 # Enable checks to detect =
deadlocks and cycles
> #options        WITNESS_SKIPSPIN        # Don't run witness on =
spinlocks for speed
>=20
> nooption        NATIVE
> option          XEN
> nodevice        atpic
> nodevice        isa
> options         MCLSHIFT=3D12
>=20
> # To make an SMP kernel, the next two lines are needed
> options         SMP                     # Symmetric MultiProcessor =
Kernel
> device          apic                    # I/O APIC
>=20
>=20
> #device         atkbdc          # AT keyboard controller
> #device         atkbd           # AT keyboard
> #device         psm             # PS/2 mouse
> device          pci
>=20
> #device         kbdmux          # keyboard multiplexer
>=20
> device          loop            # Network loopback
> device          random          # Entropy device
> device          ether           # Ethernet support
> device          pty             # Pseudo-ttys (telnet etc)
> device          bpf             # Berkeley packet filter
>=20
> device          eisa
> device          ata
> options         ATA_STATIC_ID   # Static device numbering
>=20
> device          vga             # VGA video card driver
> options         VGA_NO_FONT_LOADING
> options         VGA_NO_MODE_CHANGE
>=20
> # syscons is the default console driver, resembling an SCO console
> device          sc
> options         SC_NO_CUTPASTE
> options         SC_NO_FONT_LOADING
> options         SC_NO_HISTORY
> options         SC_NO_MODE_CHANGE
> options         SC_NO_SYSMOUSE
>=20
> device          pmtimer
>=20
>=20
>=20
> --=20
> IOnut - Un^d^dregistered ;) FreeBSD "user"
>  "Intellectual Property" is   nowhere near as valuable   as =
"Intellect"
> FreeBSD committer -> itetcu@FreeBSD.org, PGP Key ID 057E9F8B493A297B


From owner-svn-src-stable-8@FreeBSD.ORG  Mon Dec 13 17:53:42 2010
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From: Bernhard Schmidt <bschmidt@FreeBSD.org>
Date: Mon, 13 Dec 2010 17:53:41 +0000 (UTC)
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	svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org
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Subject: svn commit: r216411 - stable/8/sys/dev/wpi
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Author: bschmidt
Date: Mon Dec 13 17:53:41 2010
New Revision: 216411
URL: http://svn.freebsd.org/changeset/base/216411

Log:
  MFC r216238:
  Fix scanning after loosing a connection. The firmware assumes that as long
  as an association ID is set any scan is supposed to be a background scan.
  This implies that the firmware will switch back to the associated channel
  after a certain threshold, though, we are not notified about that. We
  currently catch this case by a timer which will reset the firmware after
  a 'scan timeout', though, upper layers are not notified about that and
  will simply hang until manual intervention. Fix this by resetting the
  firmware's knowledge about any association on RUN -> ASSOC and
  !INIT -> SCAN transitions.
  
  Approved by:	re (kib)

Modified:
  stable/8/sys/dev/wpi/if_wpi.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/dev/wpi/if_wpi.c
==============================================================================
--- stable/8/sys/dev/wpi/if_wpi.c	Mon Dec 13 17:53:38 2010	(r216410)
+++ stable/8/sys/dev/wpi/if_wpi.c	Mon Dec 13 17:53:41 2010	(r216411)
@@ -1248,8 +1248,25 @@ wpi_newstate(struct ieee80211vap *vap, e
 
 	IEEE80211_UNLOCK(ic);
 	WPI_LOCK(sc);
-	if (nstate == IEEE80211_S_AUTH) {
-		/* The node must be registered in the firmware before auth */
+	if (nstate == IEEE80211_S_SCAN && vap->iv_state != IEEE80211_S_INIT) {
+		/*
+		 * On !INIT -> SCAN transitions, we need to clear any possible
+		 * knowledge about associations.
+		 */
+		error = wpi_config(sc);
+		if (error != 0) {
+			device_printf(sc->sc_dev,
+			    "%s: device config failed, error %d\n",
+			    __func__, error);
+		}
+	}
+	if (nstate == IEEE80211_S_AUTH ||
+	    (nstate == IEEE80211_S_ASSOC && vap->iv_state == IEEE80211_S_RUN)) {
+		/*
+		 * The node must be registered in the firmware before auth.
+		 * Also the associd must be cleared on RUN -> ASSOC
+		 * transitions.
+		 */
 		error = wpi_auth(sc, vap);
 		if (error != 0) {
 			device_printf(sc->sc_dev,

From owner-svn-src-stable-8@FreeBSD.ORG  Mon Dec 13 17:56:31 2010
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Subject: svn commit: r216412 - stable/8/sys/dev/iwn
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Author: bschmidt
Date: Mon Dec 13 17:56:31 2010
New Revision: 216412
URL: http://svn.freebsd.org/changeset/base/216412

Log:
  MFC r216237:
  Fixes for monitor mode:
  - Do not call iwn_calib_reset() for monitor mode. We do not want to query
    information and do runtime calibration while in monitor mode. Poking the
    firmware with adjustments for calibration results in firmware asserts.
    This could happened on RUN -> RUN transition only.
  - Adjust blink rate for monitor mode. It's supposed to not freak out and
    turn off after a while.
  - While here, remove one useless assignment of calib.state, it gets
    overwritten later in the function.
  
  Approved by:	re (kib)

Modified:
  stable/8/sys/dev/iwn/if_iwn.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/dev/iwn/if_iwn.c
==============================================================================
--- stable/8/sys/dev/iwn/if_iwn.c	Mon Dec 13 17:53:41 2010	(r216411)
+++ stable/8/sys/dev/iwn/if_iwn.c	Mon Dec 13 17:56:31 2010	(r216412)
@@ -1983,7 +1983,8 @@ iwn_newstate(struct ieee80211vap *vap, e
 		/*
 		 * RUN -> RUN transition; Just restart the timers.
 		 */
-		if (vap->iv_state == IEEE80211_S_RUN) {
+		if (vap->iv_state == IEEE80211_S_RUN &&
+		    vap->iv_opmode != IEEE80211_M_MONITOR) {
 			iwn_calib_reset(sc);
 			break;
 		}
@@ -4851,11 +4852,9 @@ iwn_run(struct iwn_softc *sc, struct iee
 	struct iwn_node_info node;
 	int error;
 
-	sc->calib.state = IWN_CALIB_STATE_INIT;
-
 	if (ic->ic_opmode == IEEE80211_M_MONITOR) {
 		/* Link LED blinks while monitoring. */
-		iwn_set_led(sc, IWN_LED_LINK, 5, 5);
+		iwn_set_led(sc, IWN_LED_LINK, 20, 20);
 		return 0;
 	}
 	error = iwn_set_timing(sc, ni);

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From: Ion-Mihai Tetcu <itetcu@FreeBSD.org>
To: "Robert N. M. Watson" <rwatson@FreeBSD.org>
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Subject: Re: svn commit: r216406 - stable/8/sys/amd64/conf
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On Mon, 13 Dec 2010 15:31:48 +0000
"Robert N. M. Watson" <rwatson@FreeBSD.org> wrote:

>=20
> On 13 Dec 2010, at 14:00, Ion-Mihai Tetcu wrote:
>=20
> >>   Derive the XENHVM kernel from GENERIC, adding only the options
> >> required to support PV drivers (such as xenpci), and non-adptive
> >> locking (along with a comment about why).
> >=20
> > What about the same for i386?
>=20
> We don't currently support combining PV drivers with a non-PV kernel
> on i386; nor do we support a pure PV kernel on amd64. The former
> strikes me as more of a problem than the latter. Other than Amazon
> EC2, it seems most interesting targets will support HVM in practice,
> and benefit from PV drivers, but not require a pure PV kernel (i.e.,
> Xen-modified VM system).

I see. Thanks for the time you took to explain things, I'm very new to
XEN.
Do we have any docs somewhere (well, except the sources) about our XEN
support and various options / optimizations? I only know about
AdrianChadd's wiki pags and http://wiki.freebsd.org/FreeBSD/Xen (which
are nice, if you happen to know about XEN already and especially if you
want to work towards a FreebSD as XEN host).
I guess there are more interested people taht want just to run FreeBSD
as guest OS (my case).

>=20
> Your kernel configuration is likely trying to build options XEN on
> i386 without PAE; we currently require options PAE to build a PV Xen
> kernel on i386.=20

Hum, yes, I thought it doesn't make sense to have PAE when my VM has
only 1GB of RAM.
Maybe a comment in sys/i386/conf/XEN would help.

> (It also looks like "options XEN" is spelled "option
> XEN" in your config file below?)

Which proves I mange to make typos even when copy/pasting, sigh.


Thanks again,

--=20
IOnut - Un^d^dregistered ;) FreeBSD "user"
  "Intellectual Property" is   nowhere near as valuable   as "Intellect"
FreeBSD committer -> itetcu@FreeBSD.org, PGP Key ID 057E9F8B493A297B

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--Sig_/Rs_BOp4qMCqJKg49KoSDVhF--

From owner-svn-src-stable-8@FreeBSD.ORG  Mon Dec 13 20:04:57 2010
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	<20101213160021.60401b79@it.buh.tecnik93.com>
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From: "Robert N. M. Watson" <rwatson@FreeBSD.org>
Date: Mon, 13 Dec 2010 20:07:05 +0000
To: Ion-Mihai Tetcu <itetcu@FreeBSD.org>
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	"Robert N. M. Watson" <rwatson@FreeBSD.org>,
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Subject: Re: svn commit: r216406 - stable/8/sys/amd64/conf
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On 13 Dec 2010, at 18:28, Ion-Mihai Tetcu <itetcu@FreeBSD.org> wrote:

> I see. Thanks for the time you took to explain things, I'm very new to
> XEN.
> Do we have any docs somewhere (well, except the sources) about our XEN
> support and various options / optimizations? I only know about
> AdrianChadd's wiki pags and http://wiki.freebsd.org/FreeBSD/Xen (which
> are nice, if you happen to know about XEN already and especially if you
> want to work towards a FreebSD as XEN host).
> I guess there are more interested people taht want just to run FreeBSD
> as guest OS (my case).
>>=20

The current state of our Xen documentation is ... minimalist. Having basical=
ly come to it for the first time last week, when we decided we needed to dep=
loy FreeBSD on one of our Xen server pools, it's proven pretty hard-going. I=
 have some more technical problems to resolve but high on my todo list for t=
he next couple of days is documenting what has worked for me on the Wiki (wi=
th the intent of migrating that to the Handbook once I've confirmed my instr=
uctions are reproducible!). I also want to drop in at least some stub man pa=
ges for our PV drivers.

However, more fundamentally, we appear to have some serious functional gaps:=


- No ability to use PV drivers under HVM on i386.
- No ability to use a full PV kernel for amd64 (I don't consider this a prob=
lem for my use though -- HVM on amd64 appears to work well).
- No (obvious) port of Xen guest command line tools to steer ballooning, etc=
.
- Likely under-testing in certain PV drivers, such as the balloon driver.
- A possible issue with VM migration on PV i386 (we saw panics in local test=
ing, but now wonder I it was an unrelated issue relating to different CPU ty=
pes -- more investigation due).
- No event mechanism for blkfront to propagate block device expansion up the=
 geom stack, in support of live file system resizing. Right now a destructiv=
e orphan/retaste is required.
- No live file system resizing support in UFS (does work in ZFS).
- No reference "appliance" images for VM starting points (really requires li=
ve file system resizing to be useful). This was a top request o our admin fo=
lks.

All this said, and after quite a lot of head-scratching, FreeBSD/amd64 seems=
 to work well on Xen here a Cambridge, both with and without Xen PV drivers c=
ompiled in. We need a lot of sanding and polishing but the foundations have b=
een usefully laid. And I would agree that documentation is key.

Robert=

From owner-svn-src-stable-8@FreeBSD.ORG  Mon Dec 13 21:01:03 2010
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Subject: Re: svn commit: r216406 - stable/8/sys/amd64/conf
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On 12/13/10 12:07 PM, Robert N. M. Watson wrote:
> On 13 Dec 2010, at 18:28, Ion-Mihai Tetcu <itetcu@FreeBSD.org 
> <mailto:itetcu@FreeBSD.org>> wrote:
>
>> I see. Thanks for the time you took to explain things, I'm very new to
>> XEN.
>> Do we have any docs somewhere (well, except the sources) about our XEN
>> support and various options / optimizations? I only know about
>> AdrianChadd's wiki pags and http://wiki.freebsd.org/FreeBSD/Xen (which
>> are nice, if you happen to know about XEN already and especially if you
>> want to work towards a FreebSD as XEN host).
>> I guess there are more interested people taht want just to run FreeBSD
>> as guest OS (my case).
>
> The current state of our Xen documentation is ... minimalist. Having 
> basically come to it for the first time last week, when we decided 
> we needed to deploy FreeBSD on one of our Xen server pools, it's 
> proven pretty hard-going. I have some more technical problems to 
> resolve but high on my todo list for the next couple of days is 
> documenting what has worked for me on the Wiki (with the intent of 
> migrating that to the Handbook once I've confirmed my instructions 
> are reproducible!). I also want to drop in at least some stub man 
> pages for our PV drivers.
>
> However, more fundamentally, we appear to have some serious 
> functional gaps:
>
> - No ability to use PV drivers under HVM on i386.
> - No ability to use a full PV kernel for amd64 (I don't consider 
> this a problem for my use though -- HVM on amd64 appears to work well).
> - No (obvious) port of Xen guest command line tools to steer 
> ballooning, etc.
> - Likely under-testing in certain PV drivers, such as the balloon 
> driver.
> - A possible issue with VM migration on PV i386 (we saw panics in 
> local testing, but now wonder I it was an unrelated issue relating 
> to different CPU types -- more investigation due).
> - No event mechanism for blkfront to propagate block device 
> expansion up the geom stack, in support of live file system 
> resizing. Right now a destructive orphan/retaste is required.
> - No live file system resizing support in UFS (does work in ZFS).
> - No reference "appliance" images for VM starting points (really 
> requires live file system resizing to be useful). This was a top 
> request o our admin folks.
>
> All this said, and after quite a lot of head-scratching, 
> FreeBSD/amd64 seems to work well on Xen here a Cambridge, both with 
> and without Xen PV drivers compiled in. We need a lot of sanding and 
> polishing but the foundations have been usefully laid. And I would 
> agree that documentation is key.
>
> Robert
you should talk to the people at rootBSD.com
they use Xen to deploy their BSD VPS systems and no doubt have stories 
to tell and suggestions
as to where we could get the best bang for our buck.


From owner-svn-src-stable-8@FreeBSD.ORG  Tue Dec 14 13:45:57 2010
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Subject: svn commit: r216430 - stable/8/sys/fs/nfsserver
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Author: rmacklem
Date: Tue Dec 14 13:45:57 2010
New Revision: 216430
URL: http://svn.freebsd.org/changeset/base/216430

Log:
  MFC: r216330
  Disable attempts to establish a callback connection from the
  experimental NFSv4 server to a NFSv4 client when delegations are not
  being issued, even if the client advertises a callback path.
  This avoids a problem where a Linux client advertises a
  callback path that doesn't work, due to a firewall, and then
  times out an Open attempt before the FreeBSD server gives up
  its callback connection attempt. (Suggested by
  drb at karlov.mff.cuni.cz.) The server should probably have
  a 1sec timeout on callback connection attempts when there are
  no delegations issued to the client, but that patch will require
  changes to the krpc and this serves as a work around until then.
  
  Tested by:	drb at karlov.mff.cuni.cz
  Approved by:	re (kib)

Modified:
  stable/8/sys/fs/nfsserver/nfs_nfsdstate.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/fs/nfsserver/nfs_nfsdstate.c
==============================================================================
--- stable/8/sys/fs/nfsserver/nfs_nfsdstate.c	Tue Dec 14 10:06:28 2010	(r216429)
+++ stable/8/sys/fs/nfsserver/nfs_nfsdstate.c	Tue Dec 14 13:45:57 2010	(r216430)
@@ -147,12 +147,20 @@ nfsrv_setclient(struct nfsrv_descript *n
 	if (nfsrv_openpluslock > NFSRV_V4STATELIMIT)
 		return (NFSERR_RESOURCE);
 
-	if ((nd->nd_flag & ND_GSS) && nfsrv_nogsscallback)
+	if (nfsrv_issuedelegs == 0 ||
+	    ((nd->nd_flag & ND_GSS) != 0 && nfsrv_nogsscallback != 0))
 		/*
-		 * Don't do callbacks for AUTH_GSS.
-		 * (Since these aren't yet debugged, they might cause the
-		 *  server to crap out, if they get past the Init call to
-		 *  the client.)
+		 * Don't do callbacks when delegations are disabled or
+		 * for AUTH_GSS unless enabled via nfsrv_nogsscallback.
+		 * If establishing a callback connection is attempted
+		 * when a firewall is blocking the callback path, the
+		 * server may wait too long for the connect attempt to
+		 * succeed during the Open. Some clients, such as Linux,
+		 * may timeout and give up on the Open before the server
+		 * replies. Also, since AUTH_GSS callbacks are not
+		 * yet interoperability tested, they might cause the
+		 * server to crap out, if they get past the Init call to
+		 * the client.
 		 */
 		new_clp->lc_program = 0;
 

From owner-svn-src-stable-8@FreeBSD.ORG  Tue Dec 14 15:33:49 2010
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Subject: svn commit: r216433 - stable/8/lib/csu/ia64
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Author: tijl
Date: Tue Dec 14 15:33:48 2010
New Revision: 216433
URL: http://svn.freebsd.org/changeset/base/216433

Log:
  MFC r216351:
  
  Add a .note.ABI-tag section to ia64 startup files by linking crtbrand.c
  in crt1.o. On other architectures crtbrand.c is included from crt1.c,
  but that's not a C source code file on ia64. Instead it is compiled
  separately and included in crt1.o using incremental linking.
  
  Approved by:	re (kensmith), kib (mentor)

Modified:
  stable/8/lib/csu/ia64/Makefile
Directory Properties:
  stable/8/lib/csu/   (props changed)

Modified: stable/8/lib/csu/ia64/Makefile
==============================================================================
--- stable/8/lib/csu/ia64/Makefile	Tue Dec 14 15:14:08 2010	(r216432)
+++ stable/8/lib/csu/ia64/Makefile	Tue Dec 14 15:33:48 2010	(r216433)
@@ -2,22 +2,43 @@
 
 .PATH: ${.CURDIR}/../common
 
-SRCS=		crt1.S crti.S crtn.S
+SRCS=		crti.S crtn.S
 OBJS=		${SRCS:N*.h:R:S/$/.o/g}
-OBJS+=		Scrt1.o gcrt1.o
-CFLAGS+=	-Wall -Wno-unused \
-		-I${.CURDIR}/../common \
-		-I${.CURDIR}/../../libc/include
+OBJS+=		crt1.o gcrt1.o Scrt1.o
+CFLAGS+=	-Wall -Wno-unused
 
 all: ${OBJS}
 
 CLEANFILES=	${OBJS}
+CLEANFILES+=	crt1_.o gcrt1_.o Scrt1_.o
+CLEANFILES+=	crtbrand.o gcrtbrand.o Scrtbrand.o
 
-gcrt1.o: crt1.S
-	${CC} ${CFLAGS} -DGCRT -c -o gcrt1.o ${.ALLSRC}
+crt1_.o: crt1.S
+	${CC} ${CFLAGS} -c -o ${.TARGET} ${.ALLSRC}
 
-Scrt1.o: crt1.S
-	${CC} ${CFLAGS} -fPIC -DPIC -c -o Scrt1.o ${.ALLSRC}
+crtbrand.o: crtbrand.c
+	${CC} ${CFLAGS} -c -o ${.TARGET} ${.ALLSRC}
+
+crt1.o: crt1_.o crtbrand.o
+	${LD} ${LDFLAGS} -r -o ${.TARGET} crt1_.o crtbrand.o
+
+gcrt1_.o: crt1.S
+	${CC} ${CFLAGS} -DGCRT -c -o ${.TARGET} ${.ALLSRC}
+
+gcrtbrand.o: crtbrand.c
+	${CC} ${CFLAGS} -DGCRT -c -o ${.TARGET} ${.ALLSRC}
+
+gcrt1.o: gcrt1_.o gcrtbrand.o
+	${LD} ${LDFLAGS} -r -o ${.TARGET} ${.ALLSRC}
+
+Scrt1_.o: crt1.S
+	${CC} ${CFLAGS} -fPIC -DPIC -c -o ${.TARGET} ${.ALLSRC}
+
+Scrtbrand.o: crtbrand.c
+	${CC} ${CFLAGS} -fPIC -DPIC -c -o ${.TARGET} ${.ALLSRC}
+
+Scrt1.o: Scrt1_.o Scrtbrand.o
+	${LD} ${LDFLAGS} -r -o ${.TARGET} ${.ALLSRC}
 
 realinstall:
 	${INSTALL} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \

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From: Martin Matuska <mm@FreeBSD.org>
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Subject: svn commit: r216434 -
	stable/8/cddl/contrib/opensolaris/lib/libzpool/common
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Author: mm
Date: Tue Dec 14 15:33:59 2010
New Revision: 216434
URL: http://svn.freebsd.org/changeset/base/216434

Log:
  MFC r210044, r214622:
  
  MFC r210044 (pjd):
  MFp4 180933:
  
  Initialize rw_count properly so that zdb(8) doesn't trigger assertion in
  rw_enter():
  
  	ASSERT(rwlp->rw_count == 0);
  
  While here, assert that rw_count is 0 when destroying the lock.
  
  MFC r214622 (pjd):
  1. Remove invalid assertion.
  2. Properly recalculate delta in case pthread_cond_timedwait() is interrupted.
  3. Style fix.
  
  Reported by:	[1] App Deb <appdebgr@gmail.com>
  
  Approved by:	re (kib), pjd, delphij (mentor)

Modified:
  stable/8/cddl/contrib/opensolaris/lib/libzpool/common/kernel.c
Directory Properties:
  stable/8/cddl/contrib/opensolaris/   (props changed)

Modified: stable/8/cddl/contrib/opensolaris/lib/libzpool/common/kernel.c
==============================================================================
--- stable/8/cddl/contrib/opensolaris/lib/libzpool/common/kernel.c	Tue Dec 14 15:33:48 2010	(r216433)
+++ stable/8/cddl/contrib/opensolaris/lib/libzpool/common/kernel.c	Tue Dec 14 15:33:59 2010	(r216434)
@@ -174,11 +174,13 @@ rw_init(krwlock_t *rwlp, char *name, int
 	rwlock_init(&rwlp->rw_lock, USYNC_THREAD, NULL);
 	rwlp->rw_owner = NULL;
 	rwlp->initialized = B_TRUE;
+	rwlp->rw_count = 0;
 }
 
 void
 rw_destroy(krwlock_t *rwlp)
 {
+	ASSERT(rwlp->rw_count == 0);
 	rwlock_destroy(&rwlp->rw_lock);
 	rwlp->rw_owner = (void *)-1UL;
 	rwlp->initialized = B_FALSE;
@@ -306,9 +308,9 @@ cv_timedwait(kcondvar_t *cv, kmutex_t *m
 	struct timeval tv;
 	clock_t delta;
 
-	ASSERT(abstime > 0);
+	abstime += lbolt;
 top:
-	delta = abstime;
+	delta = abstime - lbolt;
 	if (delta <= 0)
 		return (-1);
 
@@ -319,7 +321,7 @@ top:
 	ts.tv_nsec = tv.tv_usec * 1000 + (delta % hz) * (NANOSEC / hz);
 	ASSERT(ts.tv_nsec >= 0);
 
-	if(ts.tv_nsec >= NANOSEC) {
+	if (ts.tv_nsec >= NANOSEC) {
 		ts.tv_sec++;
 		ts.tv_nsec -= NANOSEC;
 	}

From owner-svn-src-stable-8@FreeBSD.ORG  Tue Dec 14 15:36:48 2010
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From: Martin Matuska <mm@FreeBSD.org>
Date: Tue, 14 Dec 2010 15:36:48 +0000 (UTC)
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Subject: svn commit: r216436 -
	stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
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Author: mm
Date: Tue Dec 14 15:36:47 2010
New Revision: 216436
URL: http://svn.freebsd.org/changeset/base/216436

Log:
  MFC r208683, r210999, r212385:
  
  MFC r208683 (pjd):
  Fix a bug where resilver is not started automatically on pool import or load.
  If disk was missing on pool load or import and on next pool load or import
  it was present, resilver wasn't started automatically and ZFS reported all
  disks as ONLINE and healthy. Then, when another disk died, pool became
  unaccessible, because if it was 2-way mirror or RAIDZ1 two vdevs were
  out of sync.
  
  To fix the problem, start resilver automatically on pool load or import.
  
  Obtained from:	OpenSolaris
  
  MFC r210999 (pjd):
  In FreeBSD we use 'jailed' property.
  
  MFC r212385 (pjd):
  On FreeBSD we can log from pool that have multiple top-level vdevs or log
  vdevs, so don't deny adding new vdevs if bootfs property is set.
  
  Approved by:	re (kib), pjd, delphij (mentor)

Modified:
  stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
  stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
==============================================================================
--- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c	Tue Dec 14 15:35:44 2010	(r216435)
+++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c	Tue Dec 14 15:36:47 2010	(r216436)
@@ -1595,6 +1595,12 @@ spa_load(spa_t *spa, nvlist_t *config, s
 		 */
 		if (need_update)
 			spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE);
+
+		/*
+		 * Check all DTLs to see if anything needs resilvering.
+		 */
+		if (vdev_resilver_needed(rvd, NULL, NULL))
+			spa_async_request(spa, SPA_ASYNC_RESILVER);
 	}
 
 	error = 0;

Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
==============================================================================
--- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c	Tue Dec 14 15:35:44 2010	(r216435)
+++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c	Tue Dec 14 15:36:47 2010	(r216436)
@@ -357,7 +357,7 @@ zfs_secpolicy_setprop(const char *name, 
 			 * quota on things *under* (ie. contained by)
 			 * the thing they own.
 			 */
-			if (dsl_prop_get_integer(name, "zoned", &zoned,
+			if (dsl_prop_get_integer(name, "jailed", &zoned,
 			    setpoint))
 				return (EPERM);
 			if (!zoned || strlen(name) <= strlen(setpoint))
@@ -1217,8 +1217,12 @@ zfs_ioc_vdev_add(zfs_cmd_t *zc)
 {
 	spa_t *spa;
 	int error;
+#ifdef sun
 	nvlist_t *config, **l2cache, **spares;
 	uint_t nl2cache = 0, nspares = 0;
+#else
+	nvlist_t *config;
+#endif
 
 	error = spa_open(zc->zc_name, &spa, FTAG);
 	if (error != 0)
@@ -1226,6 +1230,7 @@ zfs_ioc_vdev_add(zfs_cmd_t *zc)
 
 	error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
 	    &config);
+#ifdef sun
 	(void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
 	    &l2cache, &nl2cache);
 
@@ -1246,6 +1251,7 @@ zfs_ioc_vdev_add(zfs_cmd_t *zc)
 		spa_close(spa, FTAG);
 		return (EDOM);
 	}
+#endif
 
 	if (error == 0) {
 		error = spa_vdev_add(spa, config);

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Subject: svn commit: r216440 - stable/8/sys/dev/e1000
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Author: jfv
Date: Tue Dec 14 19:59:39 2010
New Revision: 216440
URL: http://svn.freebsd.org/changeset/base/216440

Log:
  MFC r216172, r216176:
  
  Correct the RX discard and refresh_mbuf logic to match igb, the old
  discard code could cause panics due to a bad pointer, now simply
  have discard always free mbufs and depend on refresh. In the refresh
  code, make sure the mbuf and soft buf struct are properly reset.
  
  Approved by: re

Modified:
  stable/8/sys/dev/e1000/if_em.c

Modified: stable/8/sys/dev/e1000/if_em.c
==============================================================================
--- stable/8/sys/dev/e1000/if_em.c	Tue Dec 14 18:23:15 2010	(r216439)
+++ stable/8/sys/dev/e1000/if_em.c	Tue Dec 14 19:59:39 2010	(r216440)
@@ -525,7 +525,7 @@ em_attach(device_t dev)
 
 	/* Sysctl for setting the interface flow control */
 	em_set_flow_cntrl(adapter, "flow_control",
-	    "max number of rx packets to process",
+	    "configure flow control",
 	    &adapter->fc_setting, em_fc_setting);
 
 	/*
@@ -3751,46 +3751,43 @@ em_refresh_mbufs(struct rx_ring *rxr, in
 	cleaned = -1;
 	while (i != limit) {
 		rxbuf = &rxr->rx_buffers[i];
-		/*
-		** Just skip entries with a buffer,
-		** they can only be due to an error
-		** and are to be reused.
-		*/
-		if (rxbuf->m_head != NULL)
-			goto reuse;
-		m = m_getjcl(M_DONTWAIT, MT_DATA,
-		    M_PKTHDR, adapter->rx_mbuf_sz);
-		/*
-		** If we have a temporary resource shortage
-		** that causes a failure, just abort refresh
-		** for now, we will return to this point when
-		** reinvoked from em_rxeof.
-		*/
-		if (m == NULL)
-			goto update;
+		if (rxbuf->m_head == NULL) {
+			m = m_getjcl(M_DONTWAIT, MT_DATA,
+			    M_PKTHDR, adapter->rx_mbuf_sz);
+			/*
+			** If we have a temporary resource shortage
+			** that causes a failure, just abort refresh
+			** for now, we will return to this point when
+			** reinvoked from em_rxeof.
+			*/
+			if (m == NULL)
+				goto update;
+		} else
+			m = rxbuf->m_head;
+
 		m->m_len = m->m_pkthdr.len = adapter->rx_mbuf_sz;
+		m->m_flags |= M_PKTHDR;
+		m->m_data = m->m_ext.ext_buf;
 
 		/* Use bus_dma machinery to setup the memory mapping  */
 		error = bus_dmamap_load_mbuf_sg(rxr->rxtag, rxbuf->map,
 		    m, segs, &nsegs, BUS_DMA_NOWAIT);
 		if (error != 0) {
+			printf("Refresh mbufs: hdr dmamap load"
+			    " failure - %d\n", error);
 			m_free(m);
+			rxbuf->m_head = NULL;
 			goto update;
 		}
-
-		/* If nsegs is wrong then the stack is corrupt. */
-		KASSERT(nsegs == 1, ("Too many segments returned!"));
-	
+		rxbuf->m_head = m;
 		bus_dmamap_sync(rxr->rxtag,
 		    rxbuf->map, BUS_DMASYNC_PREREAD);
-		rxbuf->m_head = m;
 		rxr->rx_base[i].buffer_addr = htole64(segs[0].ds_addr);
-reuse:
+
 		cleaned = i;
 		/* Calculate next index */
 		if (++i == adapter->num_rx_desc)
 			i = 0;
-		/* This is the work marker for refresh */
 		rxr->next_to_refresh = i;
 	}
 update:
@@ -4208,8 +4205,8 @@ em_rxeof(struct rx_ring *rxr, int count,
 		len = le16toh(cur->length);
 		eop = (status & E1000_RXD_STAT_EOP) != 0;
 
-		if ((rxr->discard == TRUE) || (cur->errors &
-		    E1000_RXD_ERR_FRAME_ERR_MASK)) {
+		if ((cur->errors & E1000_RXD_ERR_FRAME_ERR_MASK) ||
+		    (rxr->discard == TRUE)) {
 			ifp->if_ierrors++;
 			++rxr->rx_discarded;
 			if (!eop) /* Catch subsequent segs */
@@ -4306,9 +4303,7 @@ next_desc:
 static __inline void
 em_rx_discard(struct rx_ring *rxr, int i)
 {
-	struct adapter		*adapter = rxr->adapter;
 	struct em_buffer	*rbuf;
-	struct mbuf		*m;
 
 	rbuf = &rxr->rx_buffers[i];
 	/* Free any previous pieces */
@@ -4318,14 +4313,14 @@ em_rx_discard(struct rx_ring *rxr, int i
 		rxr->fmp = NULL;
 		rxr->lmp = NULL;
 	}
-                         
-	/* Reset state, keep loaded DMA map and reuse */
-	m = rbuf->m_head;
-	m->m_len = m->m_pkthdr.len = adapter->rx_mbuf_sz;
-	m->m_flags |= M_PKTHDR;
-	m->m_data = m->m_ext.ext_buf;
-	m->m_next = NULL;
-
+	/*
+	** Free buffer and allow em_refresh_mbufs()
+	** to clean up and recharge buffer.
+	*/
+	if (rbuf->m_head) {
+		m_free(rbuf->m_head);
+		rbuf->m_head = NULL;
+	}
 	return;
 }
 

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Author: jkim
Date: Tue Dec 14 20:19:41 2010
New Revision: 216446
URL: http://svn.freebsd.org/changeset/base/216446

Log:
  MFC:	r210780
  
  Rearrange struct pcb to make better use of cache lines.
  
  Approved by:	re (kib)

Modified:
  stable/8/sys/amd64/amd64/genassym.c
  stable/8/sys/amd64/include/pcb.h
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/amd64/amd64/genassym.c
==============================================================================
--- stable/8/sys/amd64/amd64/genassym.c	Tue Dec 14 20:13:30 2010	(r216445)
+++ stable/8/sys/amd64/amd64/genassym.c	Tue Dec 14 20:19:41 2010	(r216446)
@@ -135,7 +135,6 @@ ASSYM(PCB_RIP, offsetof(struct pcb, pcb_
 ASSYM(PCB_FSBASE, offsetof(struct pcb, pcb_fsbase));
 ASSYM(PCB_GSBASE, offsetof(struct pcb, pcb_gsbase));
 ASSYM(PCB_KGSBASE, offsetof(struct pcb, pcb_kgsbase));
-ASSYM(PCB_FLAGS, offsetof(struct pcb, pcb_flags));
 ASSYM(PCB_CR0, offsetof(struct pcb, pcb_cr0));
 ASSYM(PCB_CR2, offsetof(struct pcb, pcb_cr2));
 ASSYM(PCB_CR3, offsetof(struct pcb, pcb_cr3));
@@ -146,6 +145,7 @@ ASSYM(PCB_DR2, offsetof(struct pcb, pcb_
 ASSYM(PCB_DR3, offsetof(struct pcb, pcb_dr3));
 ASSYM(PCB_DR6, offsetof(struct pcb, pcb_dr6));
 ASSYM(PCB_DR7, offsetof(struct pcb, pcb_dr7));
+ASSYM(PCB_FLAGS, offsetof(struct pcb, pcb_flags));
 ASSYM(PCB_ONFAULT, offsetof(struct pcb, pcb_onfault));
 ASSYM(PCB_GS32SD, offsetof(struct pcb, pcb_gs32sd));
 ASSYM(PCB_TSSP, offsetof(struct pcb, pcb_tssp));

Modified: stable/8/sys/amd64/include/pcb.h
==============================================================================
--- stable/8/sys/amd64/include/pcb.h	Tue Dec 14 20:13:30 2010	(r216445)
+++ stable/8/sys/amd64/include/pcb.h	Tue Dec 14 20:19:41 2010	(r216446)
@@ -55,15 +55,6 @@ struct pcb {
 	register_t	pcb_fsbase;
 	register_t	pcb_gsbase;
 	register_t	pcb_kgsbase;
-	u_long		pcb_flags;
-#define	PCB_DBREGS	0x02	/* process using debug registers */
-#define	PCB_KERNFPU	0x04	/* kernel uses fpu */
-#define	PCB_FPUINITDONE	0x08	/* fpu state is initialized */
-#define	PCB_USERFPUINITDONE 0x10 /* fpu user state is initialized */
-#define	PCB_GS32BIT	0x20	/* linux gs switch */
-#define	PCB_32BIT	0x40	/* process has 32 bit context (segs etc) */
-#define	PCB_FULLCTX	0x80	/* full context restore on sysret */
-
 	register_t	pcb_cr0;
 	register_t	pcb_cr2;
 	register_t	pcb_cr3;
@@ -75,6 +66,15 @@ struct pcb {
 	register_t	pcb_dr6;
 	register_t	pcb_dr7;
 
+	u_long		pcb_flags;
+#define	PCB_DBREGS	0x02	/* process using debug registers */
+#define	PCB_KERNFPU	0x04	/* kernel uses fpu */
+#define	PCB_FPUINITDONE	0x08	/* fpu state is initialized */
+#define	PCB_USERFPUINITDONE 0x10 /* fpu user state is initialized */
+#define	PCB_GS32BIT	0x20	/* linux gs switch */
+#define	PCB_32BIT	0x40	/* process has 32 bit context (segs etc) */
+#define	PCB_FULLCTX	0x80	/* full context restore on sysret */
+
 	uint16_t	pcb_initial_fpucw;
 
 	caddr_t		pcb_onfault; /* copyin/out fault recovery */

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Author: mav
Date: Wed Dec 15 08:27:17 2010
New Revision: 216452
URL: http://svn.freebsd.org/changeset/base/216452

Log:
  MFC r216309:
  Add IDs of HighPoint RocketRAID 62x cards (Marvell 88SE9128 chips).
  
  PR:             kern/152926
  Submitted by:   Mike Tancsa <mike@sentex.net>
  Approved by:	re (kib)

Modified:
  stable/8/sys/dev/ahci/ahci.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/dev/ahci/ahci.c
==============================================================================
--- stable/8/sys/dev/ahci/ahci.c	Wed Dec 15 01:19:14 2010	(r216451)
+++ stable/8/sys/dev/ahci/ahci.c	Wed Dec 15 08:27:17 2010	(r216452)
@@ -172,6 +172,10 @@ static struct {
 	{0x614511ab, 0x00, "Marvell 88SX6145",	AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS},
 	{0x91231b4b, 0x11, "Marvell 88SE912x",	AHCI_Q_NOBSYRES},
 	{0x91231b4b, 0x00, "Marvell 88SE912x",	AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES},
+	{0x06201103, 0x00, "HighPoint RocketRAID 620",	AHCI_Q_NOBSYRES},
+	{0x06201b4b, 0x00, "HighPoint RocketRAID 620",	AHCI_Q_NOBSYRES},
+	{0x06221103, 0x00, "HighPoint RocketRAID 622",	AHCI_Q_NOBSYRES},
+	{0x06221b4b, 0x00, "HighPoint RocketRAID 622",	AHCI_Q_NOBSYRES},
 	{0x044c10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
 	{0x044d10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},
 	{0x044e10de, 0x00, "NVIDIA MCP65",	AHCI_Q_NOAA},

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Subject: svn commit: r216455 - in stable/8/sys: amd64/amd64 i386/isa
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Author: kib
Date: Wed Dec 15 15:15:42 2010
New Revision: 216455
URL: http://svn.freebsd.org/changeset/base/216455

Log:
  MFC r216394:
  In fpudna()/npxdna(), mark FPU context initialized and optionally
  mark user FPU context initialized, if current context is user context.
  It was reversed in r215865, by inadequate change of this code fragment
  to a call to fpuuserinited()/npxuserinited().
  
  Approved by:	re (bz)

Modified:
  stable/8/sys/amd64/amd64/fpu.c
  stable/8/sys/i386/isa/npx.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/amd64/amd64/fpu.c
==============================================================================
--- stable/8/sys/amd64/amd64/fpu.c	Wed Dec 15 12:46:53 2010	(r216454)
+++ stable/8/sys/amd64/amd64/fpu.c	Wed Dec 15 15:15:42 2010	(r216455)
@@ -426,7 +426,9 @@ fpudna(void)
 		fxrstor(&fpu_initialstate);
 		if (pcb->pcb_initial_fpucw != __INITIAL_FPUCW__)
 			fldcw(pcb->pcb_initial_fpucw);
-		fpuuserinited(curthread);
+		pcb->pcb_flags |= PCB_FPUINITDONE;
+		if (PCB_USER_FPU(pcb))
+			pcb->pcb_flags |= PCB_USERFPUINITDONE;
 	} else
 		fxrstor(pcb->pcb_save);
 	critical_exit();

Modified: stable/8/sys/i386/isa/npx.c
==============================================================================
--- stable/8/sys/i386/isa/npx.c	Wed Dec 15 12:46:53 2010	(r216454)
+++ stable/8/sys/i386/isa/npx.c	Wed Dec 15 15:15:42 2010	(r216455)
@@ -684,7 +684,9 @@ npxdna(void)
 		fpurstor(&npx_initialstate);
 		if (pcb->pcb_initial_npxcw != __INITIAL_NPXCW__)
 			fldcw(pcb->pcb_initial_npxcw);
-		npxuserinited(curthread);
+		pcb->pcb_flags |= PCB_NPXINITDONE;
+		if (PCB_USER_FPU(pcb))
+			pcb->pcb_flags |= PCB_NPXUSERINITDONE;
 	} else {
 		/*
 		 * The following fpurstor() may cause an IRQ13 when the

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Subject: svn commit: r216456 -
	stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
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Author: mm
Date: Wed Dec 15 15:19:17 2010
New Revision: 216456
URL: http://svn.freebsd.org/changeset/base/216456

Log:
  MFC r209230 (pjd):
  
  Remove redundant assignment.
  
  Approved by:	re (kib), pjd, delphij (mentor)

Modified:
  stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
==============================================================================
--- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c	Wed Dec 15 15:15:42 2010	(r216455)
+++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c	Wed Dec 15 15:19:17 2010	(r216456)
@@ -1593,8 +1593,6 @@ zfs_checkexp(vfs_t *vfsp, struct sockadd
 	 * which we have to use here, because only this file system
 	 * has mnt_export configured.
 	 */
-	vfsp = zfsvfs->z_parent->z_vfs;
-
 	return (vfs_stdcheckexp(zfsvfs->z_parent->z_vfs, nam, extflagsp,
 	    credanonp, numsecflavors, secflavors));
 }

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Subject: svn commit: r216457 - in stable/8/sys/amd64: amd64 ia32 include
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Author: kib
Date: Wed Dec 15 15:23:25 2010
New Revision: 216457
URL: http://svn.freebsd.org/changeset/base/216457

Log:
  MFC r216253:
  Retire write-only PCB_FULLCTX pcb flag on amd64.
  
  Approved by:	re (bz)

Modified:
  stable/8/sys/amd64/amd64/exception.S
  stable/8/sys/amd64/amd64/genassym.c
  stable/8/sys/amd64/amd64/machdep.c
  stable/8/sys/amd64/amd64/vm_machdep.c
  stable/8/sys/amd64/ia32/ia32_signal.c
  stable/8/sys/amd64/include/pcb.h
  stable/8/sys/amd64/linux32/linux32_sysvec.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/amd64/amd64/exception.S
==============================================================================
--- stable/8/sys/amd64/amd64/exception.S	Wed Dec 15 15:19:17 2010	(r216456)
+++ stable/8/sys/amd64/amd64/exception.S	Wed Dec 15 15:23:25 2010	(r216457)
@@ -376,7 +376,6 @@ IDTVEC(fast_syscall)
 	movq	%rsp,%rdi
 	call	syscall
 	movq	PCPU(CURPCB),%rax
-	andq	$~PCB_FULLCTX,PCB_FLAGS(%rax)
 	MEXITCOUNT
 	jmp	doreti
 

Modified: stable/8/sys/amd64/amd64/genassym.c
==============================================================================
--- stable/8/sys/amd64/amd64/genassym.c	Wed Dec 15 15:19:17 2010	(r216456)
+++ stable/8/sys/amd64/amd64/genassym.c	Wed Dec 15 15:23:25 2010	(r216457)
@@ -161,7 +161,6 @@ ASSYM(PCB_SIZE, sizeof(struct pcb));
 ASSYM(PCB_DBREGS, PCB_DBREGS);
 ASSYM(PCB_32BIT, PCB_32BIT);
 ASSYM(PCB_GS32BIT, PCB_GS32BIT);
-ASSYM(PCB_FULLCTX, PCB_FULLCTX);
 
 ASSYM(COMMON_TSS_RSP0, offsetof(struct amd64tss, tss_rsp0));
 

Modified: stable/8/sys/amd64/amd64/machdep.c
==============================================================================
--- stable/8/sys/amd64/amd64/machdep.c	Wed Dec 15 15:19:17 2010	(r216456)
+++ stable/8/sys/amd64/amd64/machdep.c	Wed Dec 15 15:23:25 2010	(r216457)
@@ -488,7 +488,6 @@ sigreturn(td, uap)
 #endif
 
 	kern_sigprocmask(td, SIG_SETMASK, &ucp->uc_sigmask, NULL, 0);
-	td->td_pcb->pcb_flags |= PCB_FULLCTX;
 	td->td_pcb->pcb_full_iret = 1;
 	return (EJUSTRETURN);
 }
@@ -1897,7 +1896,6 @@ set_regs(struct thread *td, struct reg *
 		tp->tf_gs = regs->r_gs;
 		tp->tf_flags = TF_HASSEGS;
 	}
-	td->td_pcb->pcb_flags |= PCB_FULLCTX;
 	return (0);
 }
 
@@ -2084,7 +2082,6 @@ set_mcontext(struct thread *td, const mc
 		td->td_pcb->pcb_fsbase = mcp->mc_fsbase;
 		td->td_pcb->pcb_gsbase = mcp->mc_gsbase;
 	}
-	td->td_pcb->pcb_flags |= PCB_FULLCTX;
 	td->td_pcb->pcb_full_iret = 1;
 	return (0);
 }

Modified: stable/8/sys/amd64/amd64/vm_machdep.c
==============================================================================
--- stable/8/sys/amd64/amd64/vm_machdep.c	Wed Dec 15 15:19:17 2010	(r216456)
+++ stable/8/sys/amd64/amd64/vm_machdep.c	Wed Dec 15 15:23:25 2010	(r216457)
@@ -347,7 +347,6 @@ cpu_set_syscall_retval(struct thread *td
 		 */
 		td->td_frame->tf_rip -= td->td_frame->tf_err;
 		td->td_frame->tf_r10 = td->td_frame->tf_rcx;
-		td->td_pcb->pcb_flags |= PCB_FULLCTX;
 		break;
 
 	case EJUSTRETURN:

Modified: stable/8/sys/amd64/ia32/ia32_signal.c
==============================================================================
--- stable/8/sys/amd64/ia32/ia32_signal.c	Wed Dec 15 15:19:17 2010	(r216456)
+++ stable/8/sys/amd64/ia32/ia32_signal.c	Wed Dec 15 15:23:25 2010	(r216457)
@@ -206,7 +206,6 @@ ia32_set_mcontext(struct thread *td, con
 	tp->tf_rflags = rflags;
 	tp->tf_rsp = mcp->mc_esp;
 	tp->tf_ss = mcp->mc_ss;
-	td->td_pcb->pcb_flags |= PCB_FULLCTX;
 	td->td_pcb->pcb_full_iret = 1;
 	return (0);
 }
@@ -746,7 +745,7 @@ ia32_setregs(td, entry, stack, ps_string
 	fpstate_drop(td);
 
 	/* Return via doreti so that we can change to a different %cs */
-	pcb->pcb_flags |= PCB_FULLCTX | PCB_32BIT;
+	pcb->pcb_flags |= PCB_32BIT;
 	pcb->pcb_flags &= ~PCB_GS32BIT;
 	td->td_pcb->pcb_full_iret = 1;
 	td->td_retval[1] = 0;

Modified: stable/8/sys/amd64/include/pcb.h
==============================================================================
--- stable/8/sys/amd64/include/pcb.h	Wed Dec 15 15:19:17 2010	(r216456)
+++ stable/8/sys/amd64/include/pcb.h	Wed Dec 15 15:23:25 2010	(r216457)
@@ -73,7 +73,6 @@ struct pcb {
 #define	PCB_USERFPUINITDONE 0x10 /* fpu user state is initialized */
 #define	PCB_GS32BIT	0x20	/* linux gs switch */
 #define	PCB_32BIT	0x40	/* process has 32 bit context (segs etc) */
-#define	PCB_FULLCTX	0x80	/* full context restore on sysret */
 
 	uint16_t	pcb_initial_fpucw;
 

Modified: stable/8/sys/amd64/linux32/linux32_sysvec.c
==============================================================================
--- stable/8/sys/amd64/linux32/linux32_sysvec.c	Wed Dec 15 15:19:17 2010	(r216456)
+++ stable/8/sys/amd64/linux32/linux32_sysvec.c	Wed Dec 15 15:23:25 2010	(r216457)
@@ -880,7 +880,7 @@ exec_linux_setregs(td, entry, stack, ps_
 	fpstate_drop(td);
 
 	/* Return via doreti so that we can change to a different %cs */
-	pcb->pcb_flags |= PCB_FULLCTX | PCB_32BIT;
+	pcb->pcb_flags |= PCB_32BIT;
 	pcb->pcb_flags &= ~PCB_GS32BIT;
 	td->td_retval[1] = 0;
 }

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Subject: svn commit: r216458 - in stable/8/sys/amd64: amd64 linux32
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Author: kib
Date: Wed Dec 15 15:25:56 2010
New Revision: 216458
URL: http://svn.freebsd.org/changeset/base/216458

Log:
  MFC r216255:
  Update some comments related to use of amd64 full context switch.
  In exec_linux_setregs(), use locally cached pointer to pcb to set
  pcb_full_iret.
  In set_regs(), note that full return is needed when code that sets
  segment registers is enabled.
  
  Approved by:	re (bz)

Modified:
  stable/8/sys/amd64/amd64/machdep.c
  stable/8/sys/amd64/amd64/vm_machdep.c
  stable/8/sys/amd64/linux32/linux32_sysvec.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/amd64/amd64/machdep.c
==============================================================================
--- stable/8/sys/amd64/amd64/machdep.c	Wed Dec 15 15:23:25 2010	(r216457)
+++ stable/8/sys/amd64/amd64/machdep.c	Wed Dec 15 15:25:56 2010	(r216458)
@@ -1895,6 +1895,7 @@ set_regs(struct thread *td, struct reg *
 		tp->tf_fs = regs->r_fs;
 		tp->tf_gs = regs->r_gs;
 		tp->tf_flags = TF_HASSEGS;
+		td->td_pcb->pcb_full_iret = 1;
 	}
 	return (0);
 }

Modified: stable/8/sys/amd64/amd64/vm_machdep.c
==============================================================================
--- stable/8/sys/amd64/amd64/vm_machdep.c	Wed Dec 15 15:23:25 2010	(r216457)
+++ stable/8/sys/amd64/amd64/vm_machdep.c	Wed Dec 15 15:25:56 2010	(r216458)
@@ -339,10 +339,9 @@ cpu_set_syscall_retval(struct thread *td
 		 * Reconstruct pc, we know that 'syscall' is 2 bytes,
 		 * lcall $X,y is 7 bytes, int 0x80 is 2 bytes.
 		 * We saved this in tf_err.
-		 * We have to do a full context restore so that %r10
-		 * (which was holding the value of %rcx) is restored
+		 * %r10 (which was holding the value of %rcx) is restored
 		 * for the next iteration.
-		 * r10 restore is only required for freebsd/amd64 processes,
+		 * %r10 restore is only required for freebsd/amd64 processes,
 		 * but shall be innocent for any ia32 ABI.
 		 */
 		td->td_frame->tf_rip -= td->td_frame->tf_err;

Modified: stable/8/sys/amd64/linux32/linux32_sysvec.c
==============================================================================
--- stable/8/sys/amd64/linux32/linux32_sysvec.c	Wed Dec 15 15:23:25 2010	(r216457)
+++ stable/8/sys/amd64/linux32/linux32_sysvec.c	Wed Dec 15 15:25:56 2010	(r216458)
@@ -875,13 +875,13 @@ exec_linux_setregs(td, entry, stack, ps_
 	regs->tf_flags = TF_HASSEGS;
 	regs->tf_cs = _ucode32sel;
 	regs->tf_rbx = ps_strings;
-	td->td_pcb->pcb_full_iret = 1;
 	load_cr0(rcr0() | CR0_MP | CR0_TS);
 	fpstate_drop(td);
 
-	/* Return via doreti so that we can change to a different %cs */
+	/* Do full restore on return so that we can change to a different %cs */
 	pcb->pcb_flags |= PCB_32BIT;
 	pcb->pcb_flags &= ~PCB_GS32BIT;
+	pcb->pcb_full_iret = 1;
 	td->td_retval[1] = 0;
 }
 

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Subject: svn commit: r216460 - in stable/8/sys: . amd64/include/xen
	cddl/contrib/opensolaris contrib/dev/acpica contrib/pf
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Author: bz
Date: Wed Dec 15 16:21:59 2010
New Revision: 216460
URL: http://svn.freebsd.org/changeset/base/216460

Log:
  Record merge-info for r216171 previously merged as r216366.
  Record merge-info for r216172,216176 previously merged as r216440.
  
  Approved by:	re (kib)

Modified:
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  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
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  stable/8/sys/contrib/pf/   (props changed)

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Subject: svn commit: r216467 - stable/8/sys/dev/e1000
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Author: jfv
Date: Wed Dec 15 22:59:50 2010
New Revision: 216467
URL: http://svn.freebsd.org/changeset/base/216467

Log:
  MFC r216173
  
  Remove the test for a minimum frame size from the IPV6 TX context
  descriptor setup, when using VLANs and HW TAGGING the length of
  an ICMP6 frame will fail this test and be discarded.
  
  Approved by: re

Modified:
  stable/8/sys/dev/e1000/if_igb.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/dev/e1000/if_igb.c
==============================================================================
--- stable/8/sys/dev/e1000/if_igb.c	Wed Dec 15 22:58:45 2010	(r216466)
+++ stable/8/sys/dev/e1000/if_igb.c	Wed Dec 15 22:59:50 2010	(r216467)
@@ -3429,8 +3429,6 @@ igb_tx_ctx_setup(struct tx_ring *txr, st
 		case ETHERTYPE_IPV6:
 			ip6 = (struct ip6_hdr *)(mp->m_data + ehdrlen);
 			ip_hlen = sizeof(struct ip6_hdr);
-			if (mp->m_len < ehdrlen + ip_hlen)
-				return (FALSE);
 			ipproto = ip6->ip6_nxt;
 			type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_IPV6;
 			break;

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Author: tuexen
Date: Thu Dec 16 10:58:45 2010
New Revision: 216481
URL: http://svn.freebsd.org/changeset/base/216481

Log:
  MFC r216397:
  Bugfix: Do correct accounting using the MIB counters when an
          association is aborted via sctp_abort_association().
  
  Approved by: re

Modified:
  stable/8/sys/netinet/sctputil.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/netinet/sctputil.c
==============================================================================
--- stable/8/sys/netinet/sctputil.c	Thu Dec 16 09:49:16 2010	(r216480)
+++ stable/8/sys/netinet/sctputil.c	Thu Dec 16 10:58:45 2010	(r216481)
@@ -3847,6 +3847,11 @@ sctp_abort_association(struct sctp_inpcb
 		SCTP_TCB_LOCK(stcb);
 		atomic_subtract_int(&stcb->asoc.refcnt, 1);
 #endif
+		SCTP_STAT_INCR_COUNTER32(sctps_aborted);
+		if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
+		    (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
+			SCTP_STAT_DECR_GAUGE32(sctps_currestab);
+		}
 		(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTPUTIL + SCTP_LOC_4);
 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 		SCTP_SOCKET_UNLOCK(so, 1);

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Author: brucec
Date: Thu Dec 16 14:57:06 2010
New Revision: 216484
URL: http://svn.freebsd.org/changeset/base/216484

Log:
  MFC r216407:
  
  USB probing often takes a long time and finishes finding devices after init
  has started. In the case of sysinstall, this means that it has already built
  its list of devices before probing finishes. Add a hint for users who have
  booted from a USB stick only to find that sysinstall can't find it.
  
  Approved by:	re (kensmith)

Modified:
  stable/8/usr.sbin/sysinstall/media.c
Directory Properties:
  stable/8/usr.sbin/sysinstall/   (props changed)

Modified: stable/8/usr.sbin/sysinstall/media.c
==============================================================================
--- stable/8/usr.sbin/sysinstall/media.c	Thu Dec 16 11:58:50 2010	(r216483)
+++ stable/8/usr.sbin/sysinstall/media.c	Thu Dec 16 14:57:06 2010	(r216484)
@@ -239,7 +239,7 @@ mediaSetUSB(dialogMenuItem *self)
 	cnt = deviceCount(devs);
 
 	if (!cnt) {
-		msgConfirm("No USB devices found!");
+		msgConfirm("No USB devices found (try Options/Re-scan Devices)");
 		return DITEM_FAILURE | DITEM_CONTINUE;
 	}
 	else if (cnt > 1) {

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Subject: svn commit: r216506 - stable/8/usr.bin/kdump
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Author: delphij
Date: Fri Dec 17 19:48:54 2010
New Revision: 216506
URL: http://svn.freebsd.org/changeset/base/216506

Log:
  MFC r216130:
  
  Decode IPC_CREAT and IPC_EXCL for semget(2).
  
  PR:		bin/152781
  Submitted by:	Anton Yuzhaninov <citrin citrin ru>
  Approved by:	re (kib)

Modified:
  stable/8/usr.bin/kdump/mksubr
Directory Properties:
  stable/8/usr.bin/kdump/   (props changed)

Modified: stable/8/usr.bin/kdump/mksubr
==============================================================================
--- stable/8/usr.bin/kdump/mksubr	Fri Dec 17 18:22:50 2010	(r216505)
+++ stable/8/usr.bin/kdump/mksubr	Fri Dec 17 19:48:54 2010	(r216506)
@@ -252,6 +252,8 @@ shmctlname (int cmd) {
 void
 semgetname (int flag) {
 	int	or = 0;
+	if_print_or(flag, IPC_CREAT, or);
+	if_print_or(flag, IPC_EXCL, or);
 	if_print_or(flag, SEM_R, or);
 	if_print_or(flag, SEM_A, or);
 	if_print_or(flag, (SEM_R>>3), or);

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Author: tuexen
Date: Sat Dec 18 11:45:54 2010
New Revision: 216517
URL: http://svn.freebsd.org/changeset/base/216517

Log:
  MFC 216480:
  Add a missing cast. Reported by blade_ly at yahoo.com.cn.
  
  Approved by: re (kib)

Modified:
  stable/8/sys/netinet/sctp_indata.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/netinet/sctp_indata.c
==============================================================================
--- stable/8/sys/netinet/sctp_indata.c	Sat Dec 18 11:31:32 2010	(r216516)
+++ stable/8/sys/netinet/sctp_indata.c	Sat Dec 18 11:45:54 2010	(r216517)
@@ -1754,7 +1754,7 @@ sctp_process_a_data_chunk(struct sctp_tc
 	    asoc->fragmented_delivery_inprogress == 0 &&
 	    TAILQ_EMPTY(&asoc->resetHead) &&
 	    ((ordered == 0) ||
-	    ((asoc->strmin[strmno].last_sequence_delivered + 1) == strmseq &&
+	    ((uint16_t) (asoc->strmin[strmno].last_sequence_delivered + 1) == strmseq &&
 	    TAILQ_EMPTY(&asoc->strmin[strmno].inqueue)))) {
 		/* Candidate for express delivery */
 		/*

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Author: rwatson
Date: Sat Dec 18 23:03:01 2010
New Revision: 216545
URL: http://svn.freebsd.org/changeset/base/216545

Log:
  Merge xen.4 man page from head to stable/8; revs r216419, r216420, r216428,
  r216429, r216497, r216500, r216501, r216509.
  
  Approved by:	re (kib)
  Sponsored by:	DARPA, AFRL

Added:
  stable/8/share/man/man4/xen.4
     - copied, changed from r216420, head/share/man/man4/xen.4
Modified:
  stable/8/share/man/man4/Makefile
Directory Properties:
  stable/8/share/man/man4/   (props changed)

Modified: stable/8/share/man/man4/Makefile
==============================================================================
--- stable/8/share/man/man4/Makefile	Sat Dec 18 22:16:15 2010	(r216544)
+++ stable/8/share/man/man4/Makefile	Sat Dec 18 23:03:01 2010	(r216545)
@@ -485,6 +485,7 @@ MAN=	aac.4 \
 	wlan_xauth.4 \
 	${_wpi.4} \
 	xe.4 \
+	${_xen.4} \
 	xl.4 \
 	xpt.4 \
 	zero.4 \
@@ -671,6 +672,7 @@ _spkr.4=	spkr.4
 _tpm.4=		tpm.4
 _urtw.4=	urtw.4
 _wpi.4=		wpi.4
+_xen.4=		xen.4
 
 MLINKS+=lindev.4 full.4
 .endif

Copied and modified: stable/8/share/man/man4/xen.4 (from r216420, head/share/man/man4/xen.4)
==============================================================================
--- head/share/man/man4/xen.4	Mon Dec 13 23:30:56 2010	(r216420, copy source)
+++ stable/8/share/man/man4/xen.4	Sat Dec 18 23:03:01 2010	(r216545)
@@ -28,29 +28,26 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 13, 2010
+.Dd December 17, 2010
 .Dt XEN 4
 .Os
 .Sh NAME
 .Nm xen 
 .Nd Xen Hypervisor Guest (DomU) Support
 .Sh SYNOPSIS
-To compile para-virtualized (PV) Xen guest support into the i386 kernel, place
-the following line in your kernel configuration file:
+To compile para-virtualized (PV) Xen guest support into an i386 kernel, place
+the following lines in your kernel configuration file:
 .Bd -ragged -offset indent
 .Cd "options PAE"
 .Cd "options XEN"
+.Cd "nooptions NATIVE"
 .Ed
 .Pp
-To compile hardware-assisted virtualization (HVM) Xen guest support into the
-amd64 kernel, place the following line in your kernel configuration file:
+To compile hardware-assisted virtualization (HVM) Xen guest support with
+para-virtualized drivers into an amd64 kernel, place the following lines in
+your kernel configuration file:
 .Bd -ragged -offset indent
 .Cd "options XENHVM"
-.Ed
-.Pp
-To compile the Xen PCI bus and para-virtualized (PV) drivers into an amd64
-or i386 kernel, place the following line in your kernel configuration file:
-.Bd -ragged -offset indent
 .Cd "device xenpci"
 .Ed
 .Sh DESCRIPTION
@@ -58,27 +55,99 @@ The Xen Hypervisor allows multiple virtu
 computer system.
 When first released, Xen required that i386 kernels be compiled
 "para-virtualized" as the x86 instruction set was not fully virtualizable.
+Primarily, para-virtualization modifies the virtual memory system to use
+hypervisor calls (hypercalls) rather than direct hardware instructions to
+modify the TLB, although para-virtualized device drivers were also required
+to access resources such as virtual network interfaces and disk devices.
+.Pp
 With later instruction set extensions from AMD and Intel to support fully
-virtualizable instructions, unmodified kernels could also be supported,
-referred to as hardware-assisted virtualization (HVM).
-HVM systems may still use para-virtualized drivers, which are aware of
-virtualization and able to optimize certain behaviours to improve
-performance or semantics.
+virtualizable instructions, unmodified virtual memory systems can also be
+supported; this is referred to as hardware-assisted virtualization (HVM).
+HVM configurations may either rely on transparently emulated hardware
+peripherals, or para-virtualized drivers, which are aware of virtualization,
+and hence able to optimize certain behaviors to improve performance or
+semantics.
 .Pp
 .Fx
 supports a fully para-virtualized (PV) kernel on the i386 architecture using
-.Cd "options XEN" ;
+.Cd "options XEN"
+and
+.Cd "nooptions NATIVE" ;
 currently, this requires use of a PAE kernel, enabled via
 .Cd "options PAE" .
+.Pp
 .Fx
-supports hardware-assited virtualization (HVM) on both the i386 and amd64
+supports hardware-assisted virtualization (HVM) on both the i386 and amd64
 kernels; however, PV device drivers with an HVM kernel are only supported on
-the amd64 architecture.
+the amd64 architecture, and require
+.Cd "options XENHVM"
+and
+.Cd "device xenpci" .
 .Pp
 Para-virtualized device drivers are required in order to support certain
-functionality, such as the dynamic addition of new virtual devices, and the
-"balloon driver" (returning physical memory to the Hypervisor on demand),
-and VM suspend/resume.
+functionality, such as processing management requests, returning idle
+physical memory pages to the hypervisor, etc.
+.Ss Xen DomU device drivers
+Xen para-virtualized drivers are automatically added to the kernel if a PV
+kernel is compiled using
+.Cd "options XEN" ;
+for HVM environments,
+.Cd "options XENHVM"
+and
+.Cd "device xenpci"
+are required.
+The follow drivers are supported:
+.Bl -hang -offset indent -width blkfront
+.It Nm balloon
+Allow physical memory pages to be returned to the hypervisor as a result of
+manual tuning or automatic policy.
+.It Nm blkback
+Exports local block devices or files to other Xen domains where they can
+then be imported via
+.Nm blkfront .
+.It Nm blkfront
+Import block devices from other Xen domains as local block devices, to be
+used for file systems, swap, etc.
+.It Nm console
+Export the low-level system console via the Xen console service.
+.It Nm control
+Process management operations from Domain 0, including power off, reboot,
+suspend, crash, and halt requests.
+.It Nm evtchn
+Expose Xen events via the
+.Pa /dev/xen/evtchn
+special device.
+.It Nm netback
+Export local network interfaces to other Xen domains where they can be
+imported via
+.Nm netfront .
+.It Nm netfront
+Import network interfaces from other Xen domains as local network interfaces,
+which may be used for IPv4, IPv6, etc.
+.It Nm pcifront
+Allow physical PCI devices to be passed through into a PV domain.
+.It Nm xenpci
+Represents the Xen PCI device, an emulated PCI device that is exposed to
+HVM domains.
+This device allows detection of the Xen hypervisor, and provides interrupt
+and shared memory services required to interact with the hypervisor.
+.El
+.Ss Performance considerations
+In general, PV drivers will perform better than emulated hardware, and are
+the recommended configuration for HVM installations.
+.Pp
+Using a hypervisor introduces a second layer of scheduling that may limit the
+effectiveness of certain
+.Fx
+scheduling optimisations.
+Among these is adaptive locking, which is no longer able to determine whether
+a thread holding a lock is in execution.
+It is recommended that adaptive locking be disabled when using Xen:
+.Bd -unfilled -offset indent
+.Cd "options NO_ADAPTIVE_MUTEXES"
+.Cd "options NO_ADAPTIVE_RWLOCKS"
+.Cd "options NO_ADAPTIVE_SX"
+.Ed
 .Sh SEE ALSO
 .Xr pae 4
 .Sh HISTORY
@@ -90,7 +159,7 @@ first appeared in
 .An -nosplit
 .Fx
 support for Xen was first added by
-.An Kip Mac Aq kmacy@FreeBSD.org
+.An Kip Macy Aq kmacy@FreeBSD.org
 and
 .An Doug Rabson Aq dfr@FreeBSD.org .
 Further refinements were made by
@@ -109,7 +178,8 @@ amd64.
 .Pp
 Para-virtualized drivers under hardware-assisted virtualization (HVM) kernel
 are only supported on amd64, not i386.
-.P
-As of this release, Xen DomU support is not heavily tested; instability has
-been reported during VM migration of PV kernels, and certain PV driver
-features, such as the balloon driver, are under-exercised.
+.Pp
+As of this release, Xen PV DomU support is not heavily tested; instability
+has been reported during VM migration of PV kernels.
+.Pp
+Certain PV driver features, such as the balloon driver, are under-exercised.