amd64/131209: 7.1-STABLE amd64 crash

[Roar Pettersen]

>Number:         131209
>Category:       amd64
>Synopsis:       7.1-STABLE amd64 crash
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jan 31 15:30:02 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Roar Pettersen
>Release:        FreeBSD 7.1-STABLE
>Organization:
University of Bergen
>Environment:
FreeBSD proxy-gw2.uib.no 7.1-STABLE FreeBSD 7.1-STABLE #0: Fri Jan 30 16:59:50 CET 2009     root at proxy-gw2.uib.no:/usr/obj/usr/src/sys/PROXY-GW2  amd64
>Description:
After 6 hours the system crash / freeze :

# kgdb kernel.debug /var/crash/vmcore.0
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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 = 01
fault virtual address   = 0x800000108
fault code              = supervisor read data, page not present
instruction pointer     = 0x8:0xffffffff8037690c
stack pointer           = 0x10:0xfffffffec329e5e0
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         = 25972 (cron)
trap number             = 12
panic: page fault
cpuid = 1
Uptime: 6h33m10s
Physical memory: 2039 MB
Dumping 411 MB: 396 380 364 348 332 316 300 284 268 252 236 220 204 188 172 156 140 124 108 92 76 60 44 28 12

Reading symbols from /boot/kernel/blank_saver.ko...Reading symbols from /boot/kernel/blank_saver.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/blank_saver.ko
#0  0xffffffff802fa8fa in doadump () at /usr/src/sys/kern/kern_shutdown.c:238
238             if (dumper.dumper == NULL) {


Powe on / Off was the solution to re-start the system.
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: