Date: Tue, 20 Dec 2011 05:28:05 -0800 From: Sean Bruno <seanbru@yahoo-inc.com> To: Alan Cox <alc@rice.edu> Cc: "xen@freebsd.org" <xen@freebsd.org> Subject: Re: PV i386 patch Message-ID: <1324387685.3093.28.camel@hitfishpass-lx.corp.yahoo.com> In-Reply-To: <4EF04F3C.9010309@rice.edu> References: <4EEB9CCE.6090701@rice.edu> <1324169806.3093.3.camel@hitfishpass-lx.corp.yahoo.com> <4EED4982.3080208@freebsd.org> <1324339762.3093.14.camel@hitfishpass-lx.corp.yahoo.com> <4EF04F3C.9010309@rice.edu>
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> >
>
> The code that panics shouldn't even exist in the Xen pmap. Try the
> attached patch.
>
> Alan
>
Indeed .... how on earth did we ever use this stuff? :-)
Tested to 2G on ref9-xen32.f.o .... should I go any higher?
Sean
[root@xen1 sbruno]# xm create -c ref9-xen32
Using config file "/etc/xen/ref9-xen32".
Started domain ref9-xen32 (id=113)
WARNING: loader(8) metadata is missing!
GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2011 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights
reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.0-PRERELEASE #1: Tue Dec 20 04:59:58 PST 2011
sbruno@ref9-xen32.freebsd.org:/dumpster/scratch/sbruno-scratch/9/sys/i386/compile/XEN i386
WARNING: WITNESS option enabled, expect reduced performance.
Xen reported: 2493.750 MHz processor.
Timecounter "ixen" frequency 1953125 Hz quality 0
CPU: Intel(R) Xeon(R) CPU L5420 @ 2.50GHz (2493.75-MHz
686-class CPU)
Origin = "GenuineIntel" Id = 0x10676 Family = 6 Model = 17
Stepping = 6
Features=0xbfe3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0xce3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,SSE4.1>
AMD Features=0x20100000<NX,LM>
AMD Features2=0x1<LAHF>
real memory = 2147483648 (2048 MB)
avail memory = 2092331008 (1995 MB)
[XEN] IPI cpu=0 irq=128 vector=RESCHEDULE_VECTOR (0)
[XEN] IPI cpu=0 irq=129 vector=CALL_FUNCTION_VECTOR (1)
[XEN] xen_rtc_probe: probing Hypervisor RTC clock
rtc0: <Xen Hypervisor Clock> on motherboard
[XEN] xen_rtc_attach: attaching Hypervisor RTC clock
xenstore0: <XenStore> on motherboard
xc0: <Xen Console> on motherboard
Event timer "ixen" quality 600
Timecounters tick every 10.000 msec
xenbusb_front0: <Xen Frontend Devices> on xenstore0
[XEN] hypervisor wallclock nudged; nudging TOD.
xn0: <Virtual Network Interface> at device/vif/0 on xenbusb_front0
xn0: Ethernet address: 00:16:3e:00:00:03
xenbusb_back0: <Xen Backend Devices> on xenstore0
xctrl0: <Xen Control Device> on xenstore0
xn0: backend features: feature-sg feature-gso-tcp4
xbd0: 10240MB <Virtual Block Device> at device/vbd/768 on xenbusb_front0
xbd0: attaching as ad0
Timecounter "TSC" frequency 2493750000 Hz quality 800
WARNING: WITNESS option enabled, expect reduced performance.
Trying to mount root from ufs:/dev/ad0p2 []...
rtc0: [XEN] xen_rtc_gettime
rtc0: [XEN] xen_rtc_gettime: wallclock 1313550543 sec; 871707442 nsec
rtc0: [XEN] xen_rtc_gettime: uptime 10837322 sec; 93904105 nsec
rtc0: [XEN] xen_rtc_gettime: TOD 1324387865 sec; 965611547 nsec
Setting hostuuid: 1c127834-ab5a-c2e4-7b24-5ea29d364d9d.
Setting hostid: 0xdea9fbfd.
Entropy harvesting: interrupts ethernet point_to_point kickstart.
Starting file system checks:
/dev/ad0p2: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/ad0p2: clean, 1874750 free (878 frags, 234234 blocks, 0.0%
fragmentation)
Mounting local file systems:.
Setting hostname: ref9-xen32.freebsd.org.
xn0: link state changed to DOWN
xn0: link state changed to UP
Starting Network: lo0 xn0.
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=3<RXCSUM,TXCSUM>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
inet 127.0.0.1 netmask 0xff000000
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
xn0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
options=503<RXCSUM,TXCSUM,TSO4,LRO>
ether 00:16:3e:00:00:03
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet manual
status: active
Starting devd.
DHCPREQUEST on xn0 to 255.255.255.255 port 67
DHCPACK from 69.147.83.62
bound to 69.147.83.99 -- renewal in 900 seconds.
add net ::ffff:0.0.0.0: gateway ::1
add net ::0.0.0.0: gateway ::1
add net fe80::: gateway ::1
add net ff02::: gateway ::1
Waiting 30s for the default route
interface: .............................
Mounting NFS file systems:.
ELF ldconfig path: /lib /usr/lib /usr/lib/compat /usr/local/lib
a.out ldconfig path: /usr/lib/aout /usr/lib/compat/aout
Creating and/or trimming log files.
Starting syslogd.
No core dumps found.
Setting date via ntp.
rtc0: [XEN] xen_rtc_settime
20 Dec 05:18:03 ntpdate[689]: step time server 69.147.83.54 offset
-29618.895999 sec
NFS access cache time=60
Setting NIS domain: freebsd.
Starting rpcbind.
Starting ypbind.
Clearing /tmp (X related).
Updating motd:.
Starting ntpd.
Starting sshd.
Starting cron.
Starting background file system checks in 60 seconds.
Tue Dec 20 05:18:04 PST 2011
FreeBSD/i386 (ref9-xen32.freebsd.org) (xc0)
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