amd64/140142: FreeBSD 7.2-amd64 panic w/IPv6
Mark Kamichoff
prox at prolixium.com
Sat Oct 31 15:30:06 UTC 2009
>Number: 140142
>Category: amd64
>Synopsis: FreeBSD 7.2-amd64 panic w/IPv6
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-amd64
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Oct 31 15:30:05 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: Mark Kamichoff
>Release: FreeBSD 7.2-RELEASE-p3 amd64
>Organization:
>Environment:
FreeBSD dax.prolixium.com 7.2-RELEASE-p3 FreeBSD 7.2-RELEASE-p3 #2: Thu Aug 20 01:48:40 EDT 2009 root at dax.prolixium.com:/usr/obj/usr/src/sys/DAX amd64
>Description:
Hi -
My machine received a kernel panic yesterday that appears to be related to IPv6 forwarding. The machine in question runs a few 6in4 IPv6 tunnels, uses Quagga's bgpd for dynamic routing and pf for firewalling.
During the time of panic IPv6 usage was not very high.
Below is some info. & the kernel backtrace. Please let me know what else to provide in order to assist:
Console message:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x400
fault code = supervisor write data, page not present
instruction pointer = 0x8:0xffffffff803ffa16
stack pointer = 0x10:0xfffffffe8002c970
frame pointer = 0x10:0x0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 15 (swi1: net)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 71d20h7m6s
Physical memory: 999 MB
Dumping 298 MB: 283 267 251 235 219 203 187 171 155 139 123 107 91 75 59 43 27 11
Dump complete
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...
Info:
(dax:11:08)# kldstat
Id Refs Address Size Name
1 6 0xffffffff80100000 6ef168 kernel
2 1 0xffffffff807f0000 14d8 accf_http.ko
3 1 0xffffffff807f2000 1bf0 coretemp.ko
4 1 0xffffffff80a22000 978 pflog.ko
5 1 0xffffffff80a23000 2ae8c pf.ko
6 1 0xffffffff80a4e000 1b15 if_gre.ko
(dax:11:08)# kgdb kernel.debug /var/crash/vmcore.2
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x400
fault code = supervisor write data, page not present
instruction pointer = 0x8:0xffffffff803ffa16
stack pointer = 0x10:0xfffffffe8002c970
frame pointer = 0x10:0x0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 15 (swi1: net)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 71d20h7m6s
Physical memory: 999 MB
Dumping 298 MB: 283 267 251 235 219 203 187 171 155 139 123 107 91 75 59 43 27 11
Reading symbols from /boot/kernel/accf_http.ko...Reading symbols from /boot/kernel/accf_http.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/accf_http.ko
Reading symbols from /boot/kernel/coretemp.ko...Reading symbols from /boot/kernel/coretemp.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/coretemp.ko
Reading symbols from /boot/kernel/pflog.ko...Reading symbols from /boot/kernel/pflog.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pflog.ko
Reading symbols from /boot/kernel/pf.ko...Reading symbols from /boot/kernel/pf.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pf.ko
Reading symbols from /boot/kernel/if_gre.ko...Reading symbols from /boot/kernel/if_gre.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/if_gre.ko
Reading symbols from /boot/kernel/linux.ko...Reading symbols from /boot/kernel/linux.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linux.ko
#0 doadump () at pcpu.h:195
195 __asm __volatile("movq %%gs:0,%0" : "=r" (td));
(kgdb)
(kgdb) bt
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0x8888888888888889 in ?? ()
#2 0xffffffff802a859b in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
#3 0xffffffff802a8a42 in panic (fmt=0x104 <Address 0x104 out of bounds>) at /usr/src/sys/kern/kern_shutdown.c:574
#4 0xffffffff804d5273 in trap_fatal (frame=0xffffff0001182370, eva=Variable "eva" is not available.) at /usr/src/sys/amd64/amd64/trap.c:757
#5 0xffffffff804d5645 in trap_pfault (frame=0xfffffffe8002c8c0, usermode=0) at /usr/src/sys/amd64/amd64/trap.c:673
#6 0xffffffff804d5f84 in trap (frame=0xfffffffe8002c8c0) at /usr/src/sys/amd64/amd64/trap.c:444
#7 0xffffffff804ba0ee in calltrap () at /usr/src/sys/amd64/amd64/exception.S:209
#8 0xffffffff803ffa16 in in6_setscope (in6=0xfffffffe8002ca40, ifp=0x0, ret_id=0xfffffffe8002ca5c) at atomic.h:143
#9 0xffffffff803ed38c in ip6_forward (m=0xffffff0024843000, srcrt=0) at /usr/src/sys/netinet6/ip6_forward.c:424
#10 0xffffffff803ef448 in ip6_input (m=0xffffff0024843000) at /usr/src/sys/netinet6/ip6_input.c:719
#11 0xffffffff80351179 in netisr_processqueue (ni=0xffffffff806f0488) at /usr/src/sys/net/netisr.c:143
#12 0xffffffff8035140b in swi_net (dummy=Variable "dummy" is not available.) at /usr/src/sys/net/netisr.c:250
#13 0xffffffff80288120 in ithread_loop (arg=0xffffff000116dba0) at /usr/src/sys/kern/kern_intr.c:1088
#14 0xffffffff80284f93 in fork_exit (callout=0xffffffff80287fb0 <ithread_loop>, arg=0xffffff000116dba0, frame=0xfffffffe8002cc80) at /usr/src/sys/kern/kern_fork.c:810
#15 0xffffffff804ba4ae in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:455
#16 0x0000000000000000 in ?? ()
#17 0x0000000000000000 in ?? ()
#18 0x0000000000000001 in ?? ()
#19 0x0000000000000000 in ?? ()
#20 0x0000000000000000 in ?? ()
#21 0x0000000000000000 in ?? ()
#22 0x0000000000000000 in ?? ()
#23 0x0000000000000000 in ?? ()
#24 0x0000000000000000 in ?? ()
#25 0x0000000000000000 in ?? ()
#26 0x0000000000000000 in ?? ()
#27 0x0000000000000000 in ?? ()
#28 0x0000000000000000 in ?? ()
#29 0x0000000000000000 in ?? ()
#30 0x0000000000000000 in ?? ()
#31 0x0000000000000000 in ?? ()
#32 0x0000000000000000 in ?? ()
#33 0x0000000000000000 in ?? ()
#34 0x0000000000000000 in ?? ()
#35 0x0000000000000000 in ?? ()
#36 0x0000000000000000 in ?? ()
#37 0x0000000000000000 in ?? ()
#38 0x0000000000000000 in ?? ()
#39 0x0000000000000000 in ?? ()
#40 0x000000000081a000 in ?? ()
#41 0xffffffff806dc100 in tdg_maxid ()
#42 0xffffffff806e8900 in tdq_cpu ()
#43 0xffffffff806e8900 in tdq_cpu ()
#44 0xffffff0001182370 in ?? ()
#45 0xffffff00011826a0 in ?? ()
#46 0xfffffffe8002cb28 in ?? ()
#47 0xffffff0001182370 in ?? ()
#48 0xffffffff802cbbb8 in sched_switch (td=0xffffffff80287fb0, newtd=0x80052d350, flags=Variable "flags" is not available.) at /usr/src/sys/kern/sched_ule.c:1938
#49 0x0000000000000000 in ?? ()
#50 0x0000000000000000 in ?? ()
#51 0x0000000000000000 in ?? ()
#52 0x0000000000000000 in ?? ()
#53 0x0000000000000000 in ?? ()
#54 0x0000000000000000 in ?? ()
#55 0x0000000000000000 in ?? ()
#56 0x0000000000000000 in ?? ()
#57 0x0000000000000000 in ?? ()
#58 0x0000000000000000 in ?? ()
#59 0x0000000000000000 in ?? ()
#60 0x0000000000000000 in ?? ()
#61 0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---
#62 0x0000000000000000 in ?? ()
#63 0x0000000000000000 in ?? ()
#64 0x0000000000000000 in ?? ()
#65 0x0000000000000000 in ?? ()
#66 0x0000000000000000 in ?? ()
#67 0x0000000000000000 in ?? ()
#68 0x0000000000000000 in ?? ()
#69 0x0000000000000000 in ?? ()
#70 0x0000000000000000 in ?? ()
#71 0x0000000000000000 in ?? ()
#72 0x0000000000000000 in ?? ()
#73 0x0000000000000000 in ?? ()
#74 0x0000000000000000 in ?? ()
#75 0x0000000000000000 in ?? ()
#76 0x0000000000000000 in ?? ()
#77 0x0000000000000000 in ?? ()
#78 0x0000000000000000 in ?? ()
#79 0x0000000000000000 in ?? ()
#80 0x0000000000000000 in ?? ()
#81 0x0000000000000000 in ?? ()
#82 0x0000000000000000 in ?? ()
#83 0x0000000000000000 in ?? ()
#84 0x0000000000000000 in ?? ()
#85 0x0000000000000000 in ?? ()
#86 0x0000000000000000 in ?? ()
#87 0x0000000000000000 in ?? ()
#88 0x0000000000000000 in ?? ()
#89 0x0000000000000000 in ?? ()
#90 0x0000000000000000 in ?? ()
#91 0x0000000000000000 in ?? ()
#92 0x0000000000000000 in ?? ()
#93 0x0000000000000000 in ?? ()
#94 0x0000000000000000 in ?? ()
#95 0x0000000000000000 in ?? ()
#96 0x0000000000000000 in ?? ()
#97 0x0000000000000000 in ?? ()
#98 0x0000000000000000 in ?? ()
#99 0x0000000000000000 in ?? ()
#100 0x0000000000000000 in ?? ()
#101 0x0000000000000000 in ?? ()
#102 0x0000000000000000 in ?? ()
#103 0x0000000000000000 in ?? ()
#104 0x0000000000000000 in ?? ()
#105 0x0000000000000000 in ?? ()
#106 0x0000000000000000 in ?? ()
#107 0x0000000000000000 in ?? ()
#108 0x0000000000000000 in ?? ()
#109 0x0000000000000000 in ?? ()
#110 0x0000000000000000 in ?? ()
#111 0x0000000000000000 in ?? ()
#112 0x0000000000000000 in ?? ()
#113 0x0000000000000000 in ?? ()
#114 0x0000000000000000 in ?? ()
#115 0x0000000000000000 in ?? ()
#116 0x0000000000000000 in ?? ()
Cannot access memory at address 0xfffffffe8002d000
(kgdb)
Thanks!
- Mark
>How-To-Repeat:
Unknown (IPv6 usage assumed)
>Fix:
Unknown
>Release-Note:
>Audit-Trail:
>Unformatted:
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