7.0-RELEASE && panic after ~4 hours

[Matthias Apitz]

El día Monday, March 31, 2008 a las 03:04:04PM +0200, Matthias Apitz escribió:

> > You should unmount (or boot to single-user mode) and run a full fsck 
> > (fsck -fy).
> 
> Thanks for your hint and I've done what you have advised and I'm
> connected through Wifi again now (until next panic :-))
> The fsck has indeed correct something where the block count should have
> been zero but was some decimal number of 20 digits, I think (don't
> remember that large number);
> 
> I'll copy this e-mail into the TT;

While the laptop worked all night at home (and only with clean shutdows
since the last 'fsck -fy' yesterday afternoon), it crashed after around
20 minutes in my office this morning; the kgdb says:

# kgdb /boot/kernel/kernel vmcore.3
[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]
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are
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conditions.
Type "show copying" to see the conditions.
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This GDB was configured as "i386-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   = 0xffff1a18
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc07fa3ee
stack pointer           = 0x28:0xe6904aa4
frame pointer           = 0x28:0xe6904ad0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 1546 (gkrellm)
trap number             = 12
panic: page fault
cpuid = 0
Uptime: 16m21s
Physical memory: 1009 MB
Dumping 156 MB: (CTRL-C to abort)  141 125 109 93 (CTRL-C to abort)  77
61 45 29 (CTRL-C to abort)  13

#0  doadump () at pcpu.h:195
195     pcpu.h: No such file or directory.
        in pcpu.h
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0754457 in boot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:409
#2  0xc0754719 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0a4905c in trap_fatal (frame=0xe6904a64, eva=4294908440) at
/usr/src/sys/i386/i386/trap.c:899
#4  0xc0a492e0 in trap_pfault (frame=0xe6904a64, usermode=0,
eva=4294908440)
    at /usr/src/sys/i386/i386/trap.c:812
#5  0xc0a49c8c in trap (frame=0xe6904a64) at
/usr/src/sys/i386/i386/trap.c:490
#6  0xc0a2fc0b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc07fa3ee in rt_msg2 (type=12, rtinfo=0xe6904b04, cp=0x0,
w=0xe6904b34)
    at /usr/src/sys/net/rtsock.c:784
#8  0xc07fb1a5 in sysctl_rtsock (oidp=0xc0b84ac0, arg1=0xe6904c1c,
arg2=4, req=0xe6904ba4)
    at /usr/src/sys/net/rtsock.c:1153
#9  0xc075dc97 in sysctl_root (oidp=Variable "oidp" is not available.
) at /usr/src/sys/kern/kern_sysctl.c:1306
#10 0xc075dde4 in userland_sysctl (td=0xc472fc60, name=0xe6904c14,
namelen=6, old=0x0, 
    oldlenp=0xbfbfe478, inkernel=0, new=0x0, newlen=0,
retval=0xe6904c10, flags=0)
    at /usr/src/sys/kern/kern_sysctl.c:1401
#11 0xc075eb7e in __sysctl (td=0xc472fc60, uap=0xe6904cfc) at
/usr/src/sys/kern/kern_sysctl.c:1336
#12 0xc0a49635 in syscall (frame=0xe6904d38) at
/usr/src/sys/i386/i386/trap.c:1035
#13 0xc0a2fc70 in Xint0x80_syscall () at
/usr/src/sys/i386/i386/exception.s:196
#14 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) 

any advice to track this down? thanks in advance

	matthias

-- 
Matthias Apitz