amd64 6.2-BETA3 unexpexted reboot

[Roar Pettersen]

Hello !


We have some unexpected reboot's on one of our servere,
and this is what we get from the crash file :

# kgdb kernel.debug /var/crash/vmcore.5
[GDB will not be able to debug user-mode threads: 
/usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
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conditions.
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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 = 1; apic id = 02
fault virtual address   = 0x0
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0x0
stack pointer           = 0x10:0xffffffffa5599840
frame pointer           = 0x10:0xffffff00340289a0
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         = 27 (irq69: em1)
trap number             = 12
panic: page fault
cpuid = 1
Uptime: 7h40m12s
Dumping 1023 MB (2 chunks)
   chunk 0: 1MB (156 pages) ... ok
   chunk 1: 1023MB (261888 pages) 1008 992 976 960 944 928em1: watchdog 
timeout -- resetting
  912
<5>em1: link state changed to DOWN
  896
<5>em1: link state changed to UP
  880 864 848 832 816 800 784 768em1: watchdog timeout -- resetting
  752 736
<5>em1: link state changed to DOWN
<5>em1: link state changed to UP
  720 704 688em1: watchdog timeout -- resetting
  672
<5>em1: link state changed to DOWN
  656
<5>em1: link state changed to UP
  640 624 608 592 576 560 544 528em1: watchdog timeout -- resetting
  512 496
<5>em1: link state changed to DOWN
  480
<5>em1: link state changed to UP
  464 448 432 416 400 384 368 352em1: watchdog timeout -- resetting
  336
<5>em1: link state changed to DOWN
  320
<5>em1: link state changed to UP
  304 288 272 256 240 224 208 192 176 160 144 128em1: watchdog timeout -- 
resetting
  112
<5>em1: link state changed to DOWN
<5>em1: link state changed to UP
  96 80 64 48 32 16

#0  doadump () at pcpu.h:172
172             __asm __volatile("movq %%gs:0,%0" : "=r" (td));



FreeBSD 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #6: Wed Nov 15 09:30:26 CET 
2006 amd64


--
Med vennlig hilsen / Regards;

   Roar Pettersen
   Universitetet i Bergen -  The University of Bergen