From owner-freebsd-current Tue Sep 8 05:29:45 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA20463 for freebsd-current-outgoing; Tue, 8 Sep 1998 05:29:45 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from ifi.uio.no (ifi.uio.no [129.240.64.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA20407 for ; Tue, 8 Sep 1998 05:29:19 -0700 (PDT) (envelope-from dag-erli@ifi.uio.no) Received: from hrotti.ifi.uio.no (2602@hrotti.ifi.uio.no [129.240.64.15]) by ifi.uio.no (8.8.8/8.8.7/ifi0.2) with ESMTP id OAA15866 for ; Tue, 8 Sep 1998 14:29:09 +0200 (MET DST) Received: (from dag-erli@localhost) by hrotti.ifi.uio.no ; Tue, 8 Sep 1998 14:29:08 +0200 (MET DST) Mime-Version: 1.0 To: current@FreeBSD.ORG Subject: DEVFS panic Organization: University of Oslo, Department of Informatics X-url: http://www.stud.ifi.uio.no/~dag-erli/ X-other-addresses: 'finger dag-erli@ifi.uio.no' for a list X-disclaimer-1: The views expressed in this article are mine alone, and do X-disclaimer-2: not necessarily coincide with those of any organisation or X-disclaimer-3: company with which I am or have been affiliated. X-Stop-Spam: http://www.cauce.org/ From: dag-erli@ifi.uio.no (Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?= ) Date: 08 Sep 1998 14:29:07 +0200 Message-ID: Lines: 369 X-Mailer: Gnus v5.5/Emacs 19.34 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by hub.freebsd.org id FAA20459 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG One of my freshly cvsupped and 'make world'ed -current box will repeatedly and reliably panic if booted with a DEVFS kernel (SLICE or no SLICE). The panic occurs right after the memory count (i.e. where a successful kernel would print "DEVFS: ready for devices"). The details of the panic are as follows (copied via paper): Fatal trap 12: page fault while in kernel mode fault virtual address = 0x14 fault code = supervisor read, page not present instruction pointer = 0x8:0xf013d2b5 stack pointer = 0x10:0xf01fcf5c frame pointer = 0x10:0xf01fcf74 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 0 () interrupt mask = net tty bio cam trap number = 12 Of course, there's no dump, but I can provide a copy of the faulty kernel (stripped, unfortunately; I forgot to keep an unstripped copy). The exact same kernel without DEVFS works flawlessly. An older kernel (August 2nd) with the same configuration works flawlessly with DEVFS and SLICE. The faulty kernel was compiled with the following version of DEVFS: root@fixus-ipv6 /usr/src/sys/miscfs/devfs# ident * README: devfs_proto.h: devfs_tree.c: $Id: devfs_tree.c,v 1.56 1998/07/05 23:10:21 julian Exp $ devfs_vfsops.c: $Id: devfs_vfsops.c,v 1.32 1998/09/07 13:17:00 bde Exp $ devfs_vnops.c: $Id: devfs_vnops.c,v 1.60 1998/09/04 08:06:56 dfr Exp $ devfsdefs.h: $Id: devfsdefs.h,v 1.16 1998/07/05 23:10:22 julian Exp $ reproto.sh: Here's the kernel config: # # Kernel configuration for fixus-ipv6.ifi.uio.no # machine "i386" cpu "I686_CPU" ident "fixus-ipv6" maxusers 64 # General kernel options options "AUTO_EOI_1" #options "AUTO_EOI_2" options BOUNCE_BUFFERS options "COMPAT_43" options FFS options INCLUDE_CONFIG_FILE options INET options "MD5" options "NMBCLUSTERS=8192" options "NO_F00F_HACK" options DEVFS #options SLICE options PROCFS options SOFTUPDATES options SYSVMSG options SYSVSEM options SYSVSHM options UCONSOLE options USERCONFIG options VISUAL_USERCONFIG config kernel root on wd0 # Buses controller isa0 controller pci0 controller pnp0 # Numeric coprocessor device npx0 at isa? port "IO_NPX" flags 0x1 irq 13 vector npxintr # Floppy controller controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr disk fd0 at fdc0 drive 0 # Primary IDE channel controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr disk wd0 at wdc0 drive 0 flags 0x80ff #disk wd1 at wdc0 drive 1 flags 0x80ff # Secondary IDE channel controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr #disk wd2 at wdc1 drive 0 flags 0x80ff #disk wd3 at wdc1 drive 1 flags 0x80ff # ATAPI CD-ROM support options ATAPI options ATAPI_STATIC device wcd0 # System console with PS/2 mouse device sc0 at isa? port "IO_KBD" tty irq 1 flags 0x06 vector scintr options "SC_HISTORY_SIZE=1024" options "MSGBUF_SIZE=32768" #options SC_DISABLE_REBOOT device psm0 at isa? port "IO_KBD" conflicts tty irq 12 vector psmintr # Audio hardware device pcm0 at isa? port ? tty irq 10 drq 1 flags 0x0 vector pcmintr # Serial and parallell ports device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr device lpt0 at isa? port? tty irq 7 vector lptintr # Network adapter (3Com Etherlink III XL) #device vx0 device xl0 # Pseudo-devices pseudo-device bpfilter 4 pseudo-device ether pseudo-device gzip pseudo-device loop pseudo-device pty 64 pseudo-device tun 4 pseudo-device vn 4 # Sound hardware device pcm0 at isa? port? tty irq 5 drq 1 flags 0x15 vector pcmintr Here's a dmesg of the same kernel without DEVFS: Copyright (c) 1992-1998 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 3.0-CURRENT #1: Tue Sep 8 14:02:49 CEST 1998 root@:/usr/src/sys/compile/fixus-ipv6 Calibrating clock(s) ... TSC clock: 298023586 Hz, i8254 clock: 1193288 Hz CLK_USE_I8254_CALIBRATION not specified - using default frequency Timecounter "i8254" frequency 1193182 Hz cost 3031 ns CLK_USE_TSC_CALIBRATION not specified - using old calibration method Timecounter "TSC" frequency 297998312 Hz cost 163 ns CPU: Pentium II (298.00-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x633 Stepping=3 Features=0x80f9ff real memory = 134217728 (131072K bytes) Physical memory chunk(s): 0x00001000 - 0x0009efff, 647168 bytes (158 pages) 0x001f8000 - 0x07ff7fff, 132120576 bytes (32256 pages) avail memory = 128172032 (125168K bytes) Found BIOS32 Service Directory header at 0xf00ffe80 Entry = 0xffe90 (0xf00ffe90) Rev = 0 Len = 1 PCI BIOS entry at 0xcc1e Other BIOS signatures found: ACPI: 00000000 $PnP: 000fe2d0 pci_open(1): mode 1 addr port (0x0cf8) is 0x8000384c pci_open(1a): mode1res=0x80000000 (0x80000000) pci_cfgcheck: device 0 [class=060000] [hdr=00] is there (id=71808086) Probing for devices on PCI bus 0: found-> vendor=0x8086, dev=0x7180, revid=0x03 class=06-00-00, hdrtype=0x00, mfdev=0 map[0]: type 3, range 32, base f4000000, size 26 chip0: rev 0x03 on pci0.0.0 found-> vendor=0x8086, dev=0x7181, revid=0x03 class=06-04-00, hdrtype=0x01, mfdev=0 chip1: rev 0x03 on pci0.1.0 found-> vendor=0x8086, dev=0x7110, revid=0x01 class=06-01-00, hdrtype=0x00, mfdev=1 chip2: rev 0x01 on pci0.7.0 found-> vendor=0x8086, dev=0x7111, revid=0x01 class=01-01-80, hdrtype=0x00, mfdev=0 ide_pci0: rev 0x01 on pci0.7.1 intel_piix_status: primary master sample = 3, master recovery = 1 intel_piix_status: primary master fastDMAonly disabled, pre/post enabled, intel_piix_status: IORDY sampling enabled, intel_piix_status: fast PIO enabled intel_piix_status: primary slave sample = 5, slave recovery = 4 intel_piix_status: primary slave fastDMAonly disabled, pre/post disabled, intel_piix_status: IORDY sampling disabled, intel_piix_status: fast PIO disabled ide_pci: busmaster 0 status: 24 from port: 0000ffa2 ide_pci: ide0:0 has been configured for DMA by BIOS intel_piix_status: secondary master sample = 3, master recovery = 3 intel_piix_status: secondary master fastDMAonly disabled, pre/post disabled, intel_piix_status: IORDY sampling enabled, intel_piix_status: fast PIO enabled intel_piix_status: secondary slave sample = 5, slave recovery = 4 intel_piix_status: secondary slave fastDMAonly disabled, pre/post disabled, intel_piix_status: IORDY sampling disabled, intel_piix_status: fast PIO disabled ide_pci: busmaster 1 status: 04 from port: 0000ffaa found-> vendor=0x8086, dev=0x7112, revid=0x01 class=0c-03-00, hdrtype=0x00, mfdev=0 intpin=d, irq=11 chip3: rev 0x01 int d irq 11 on pci0.7.2 found-> vendor=0x8086, dev=0x7113, revid=0x01 class=06-80-00, hdrtype=0x00, mfdev=0 chip4: rev 0x01 on pci0.7.3 found-> vendor=0x102b, dev=0x051b, revid=0x00 class=03-00-00, hdrtype=0x00, mfdev=0 intpin=a, irq=9 map[0]: type 3, range 32, base f9000000, size 24 map[1]: type 1, range 32, base ff800000, size 14 map[2]: type 1, range 32, base ff000000, size 23 vga0: rev 0x00 int a irq 9 on pci0.14.0 found-> vendor=0x1011, dev=0x0024, revid=0x02 class=06-04-00, hdrtype=0x01, mfdev=0 chip5: rev 0x02 on pci0.15.0 found-> vendor=0x10b7, dev=0x9050, revid=0x00 class=02-00-00, hdrtype=0x00, mfdev=0 intpin=a, irq=11 map[0]: type 4, range 32, base 0000dc80, size 6 xl0: <3Com 3c905 Fast Etherlink XL 10/100BaseTX> rev 0x00 int a irq 11 on pci0.17.0 xl0: Ethernet address: 00:c0:4f:a9:14:1a xl0: media options word: e040 xl0: probing for a PHY xl0: checking address: 0 xl0: checking address: 1 xl0: checking address: 2 xl0: checking address: 3 xl0: checking address: 4 xl0: checking address: 5 xl0: checking address: 6 xl0: checking address: 7 xl0: checking address: 8 xl0: checking address: 9 xl0: checking address: 10 xl0: checking address: 11 xl0: checking address: 12 xl0: checking address: 13 xl0: checking address: 14 xl0: checking address: 15 xl0: checking address: 16 xl0: checking address: 17 xl0: checking address: 18 xl0: checking address: 19 xl0: checking address: 20 xl0: checking address: 21 xl0: checking address: 22 xl0: checking address: 23 xl0: checking address: 24 xl0: found PHY at address 24, vendor id: 2000 device id: 5c01 xl0: PHY type: xl0: found MII xl0: PHY status word: 7849 xl0: 10Mbps half-duplex mode supported xl0: 10Mbps full-duplex mode supported xl0: 100Mbps half-duplex mode supported xl0: 100Mbps full-duplex mode supported xl0: autoneg supported bpf: xl0 attached Probing for devices on PCI bus 1: found-> vendor=0x1002, dev=0x4744, revid=0x5c class=03-00-00, hdrtype=0x00, mfdev=0 map[0]: type 1, range 32, base fd000000, size 24 map[1]: type 4, range 32, base 0000ec00, size 8 map[2]: type 1, range 32, base fcfff000, size 12 vga1: rev 0x5c on pci1.0.0 Probing for devices on PCI bus 2: Initializing PnP override table Probing for PnP devices: Trying Read_Port at 203 CSN 1 Vendor ID: CSC6835 [0x3568630e] Serial 0xffffffff Called nullpnp_probe with tag 0x00000001, type 0x3568630e Probing for devices on the ISA bus: sc0: the current keyboard controller command byte 0065 kbdio: DIAGNOSE status:0055 kbdio: TEST_KBD_PORT status:0000 kbdio: RESET_KBD return code:00fa kbdio: RESET_KBD status:00aa sc0: keyboard device ID: ab41 sc0 at 0x60-0x6f irq 1 flags 0x6 on motherboard sc0: BIOS video mode:3 sc0: VGA registers upon power-up 50 18 10 00 10 00 03 00 02 67 60 4f 50 83 55 81 bf 1f 00 4f 0d 0e 00 00 07 80 9c 8e 8f 28 1f 96 b9 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c 3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff sc0: video mode:24 sc0: VGA registers in BIOS for mode:24 50 18 10 00 10 00 03 00 02 67 60 4f 50 83 55 81 bf 1f 00 4f 0d 0e 00 00 00 00 9c 8e 8f 28 1f 96 b9 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c 3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff sc0: VGA registers to be used for mode:24 50 18 10 00 10 00 03 00 02 67 60 4f 50 83 55 81 bf 1f 00 4f 0d 0e 00 00 00 00 9c 8e 8f 28 1f 96 b9 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c 3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff sc0: rows_offset:1 sc0: VGA color <16 virtual consoles, flags=0x6> psm0: current command byte:0065 kbdio: TEST_AUX_PORT status:0000 kbdio: RESET_AUX return code:00fa kbdio: RESET_AUX status:00aa kbdio: RESET_AUX ID:0000 psm: status 00 02 64 psm: status 00 00 64 psm: status 00 03 64 psm: status 00 03 64 psm: status 10 00 64 psm: data 08 00 00 psm: data 08 00 00 psm: status 00 02 64 psm0 at 0x60-0x64 irq 12 on motherboard psm0: model Generic PS/2 mouse, device ID 0, 2 buttons psm0: config:00000000, flags:00000000, packet size:3 psm0: syncmask:c0, syncbits:00 mss_probe: no address supplied, try default 0x530 mss_detect - chip revision 0x0a mss_detect warning - I11: 0x04/0x00 mss_detect() - Detected CS4236 pcm0 at 0x530 irq 10 drq 1 flags 0xa600 on isa mss_attach 0 at 0x530 irq 10 dma 1:1 flags 0xa600 sio0: irq maps: 0x1 0x11 0x1 0x1 sio0 at 0x3f8-0x3ff irq 4 on isa sio0: type 16550A sio1: irq maps: 0x1 0x9 0x1 0x1 sio1 at 0x2f8-0x2ff irq 3 on isa sio1: type 16550A lpt0 at 0x378-0x37f irq 7 on isa lpt0: Interrupt-driven port lp0: TCP/IP capable interface bpf: lp0 attached fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: FIFO enabled, 8 bytes threshold fd0: 1.44MB 3.5in wdc0 at 0x1f0-0x1f7 irq 14 on isa wdc0: unit 0 (wd0): , 32-bit, multi-block-16 wd0: 4119MB (8436960 sectors), 8928 cyls, 15 heads, 63 S/T, 512 B/S wd0: ATA INQUIRE valid = 0007, dmamword = 0007, apio = 0003, udma = 0407 wdc1 at 0x170-0x177 irq 15 on isa wdc1: unit 0 (atapi): , removable, accel, ovlap, dma, iordy wcd0: 4133/4134Kb/sec, 256Kb cache, audio play, 255 volume levels, ejectable tray wcd0: no disc inside, unlocked npx0 flags 0x1 on motherboard npx0: INT 16 interface imasks: bio c008c040, tty c003149a, net c0060800 BIOS Geometries: 0:020bfe3f 0..523=524 cylinders, 0..254=255 heads, 1..63=63 sectors 0 accounted for Device configuration finished. bpf: tun0 attached bpf: tun1 attached bpf: tun2 attached bpf: tun3 attached bpf: lo0 attached Considering FFS root f/s. changing root device to wd0s2a wd0s1: type 0x6, start 63, end = 4192964, size 4192902 : OK wd0s2: type 0xa5, start 4192965, end = 8434124, size 4241160 : OK ffs_mountfs: superblock updated ffs_mountfs: superblock updated ffs_mountfs: superblock updated ffs_mountfs: superblock updated xl0: autoneg complete, link status good (full-duplex, 100Mbps) DES -- Dag-Erling Smørgrav - dag-erli@ifi.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message