Date: Tue, 28 Nov 2006 18:00:29 GMT From: Mark Kamichoff<prox@prolixium.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/105966: panic w/IPv6 Message-ID: <200611281800.kASI0TTg019751@www.freebsd.org> Resent-Message-ID: <200611281810.kASIAHmI086912@freefall.freebsd.org>
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>Number: 105966
>Category: kern
>Synopsis: panic w/IPv6
>Confidential: no
>Severity: critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Nov 28 18:10:12 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Mark Kamichoff
>Release: 6.2-PRERELEASE
>Organization:
>Environment:
FreeBSD starfire.prolixium.com 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #6: Fri Nov 10 13:54:19 EST 2006 root@starfire.prolixium.com:/usr/obj/usr/src/sys/STARFIRE i386
>Description:
I've been seeing a recurring kernel panic on a couple 6.x machines, all running pf and IPv6.
The machine in question here is a router, and terminates several OpenVPN tunnels as well as IPv6-in-IPv4 tunnels. Quagga is used for OSPFv2 and OSPFv3 routing protocols.
Unread portion of the kernel message buffer:
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x78
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0554ba7
stack pointer = 0x28:0xd43f2b28
frame pointer = 0x28:0xd43f2b2c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 11 (swi1: net)
trap number = 12
panic: page fault
Uptime: 17d17h21m15s
Dumping 510 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 510MB (130544 pages) 494 478 462 446 430 414 398 382 366 350 334 318 302 286 270 254 238 222 206 190 174 158 142 126 110 94 78 62 46 30 14
#0 doadump () at pcpu.h:165
165 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0 doadump () at pcpu.h:165
#1 0xc052f44a in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc052f754 in panic (fmt=0xc0709871 "%s") at /usr/src/sys/kern/kern_shutdown.c:565
#3 0xc06e576d in trap_fatal (frame=0xd43f2ae8, eva=0) at /usr/src/sys/i386/i386/trap.c:837
#4 0xc06e4e85 in trap (frame=
{tf_fs = -1067450360, tf_es = -734068696, tf_ds = 40, tf_edi = -1019857920, tf_esi = -1020668032, tf_ebp = -734057684, tf_isp = -734057708, tf_ebx = -1020701888, tf_edx = -1020668032, tf_ecx = 4, tf_eax = 4, tf_trapno = 12, tf_err = 0, tf_eip = -1068151897, tf_cs = 32, tf_eflags = 65543, tf_esp = -1020668032, tf_ss = -734057648}) at /usr/src/sys/i386/i386/trap.c:270
#5 0xc06d220a in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#6 0xc0554ba7 in turnstile_setowner (ts=0xc3295340, owner=0x4)
at /usr/src/sys/kern/subr_turnstile.c:432
#7 0xc0554ed3 in turnstile_wait (lock=0xc5df4504, owner=0x4)
at /usr/src/sys/kern/subr_turnstile.c:591
#8 0xc0524db7 in _mtx_lock_sleep (m=0xc5df4504, tid=3274299264, opts=0, file=0x0, line=0)
at /usr/src/sys/kern/kern_mutex.c:579
#9 0xc05ffe40 in nd6_output (ifp=0xc3363400, origifp=0x4, m0=0xc364a100, dst=0xc3777a9c,
rt0=0xc38de6b4) at /usr/src/sys/netinet6/nd6.c:2004
#10 0xc05f3aec in ip6_forward (m=0xc364a100, srcrt=0)
at /usr/src/sys/netinet6/ip6_forward.c:626
#11 0xc05f4d54 in ip6_input (m=0xc364a100) at /usr/src/sys/netinet6/ip6_input.c:732
#12 0xc05b7aa7 in netisr_processqueue (ni=0xc0777c84) at /usr/src/sys/net/netisr.c:236
#13 0xc05b7c9d in swi_net (dummy=0x0) at /usr/src/sys/net/netisr.c:343
#14 0xc051631a in ithread_execute_handlers (p=0xc329ca78, ie=0xc32da300)
at /usr/src/sys/kern/kern_intr.c:682
#15 0xc051645b in ithread_loop (arg=0xc3283700) at /usr/src/sys/kern/kern_intr.c:765
#16 0xc0514f51 in fork_exit (callout=0xc05163f8 <ithread_loop>, arg=0x4, frame=0x4)
at /usr/src/sys/kern/kern_fork.c:821
#17 0xc06d226c in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:208
(kgdb)
More information (pkg_info, ps output, etc.):
http://www.prolixium.com/share/txt/freebsd/ipv6/
pf.conf can be provided, if needed.
- Mark
>How-To-Repeat:
Unknown. This happens every couple of weeks.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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