On Sunday 06 August 2006 04:00, Geert Uytterhoeven wrote:
>On Sun, 6 Aug 2006, Gene Heskett wrote:
>> And I'm beginning to wonder about my hardware, gkrellms displayed
>> temps are fubar after the reboot, one is 32F, the other about
>> 261.6F, and the heat sinks feel plumb normal. Displayed temps a
>> few minutes prior to the crash were both normal and in the low
>> 130F range, its nice & warm in the coyotes den tonight. AC is off,
>> and I just opened the window about a foot.
>>
>> Anyway, from /var/log/messages:
>>
>> Aug 6 01:23:08 coyote kernel: BUG: unable to handle kernel NULL
>> pointer dereference at virtual address 0000002e
>> Aug 6 01:23:08 coyote kernel: printing eip:
>> Aug 6 01:23:08 coyote kernel: c01543b3
>> Aug 6 01:23:08 coyote kernel: *pde = 00000000
>> Aug 6 01:23:08 coyote kernel: Oops: 0002 [#1]
>> Aug 6 01:23:08 coyote kernel: PREEMPT
>> Aug 6 01:23:08 coyote kernel: Modules linked in: snd_rtctimer cx88_dvb
>> cx88_vp3054_i2c mt352 or51132 video_buf_dvb
>> dvb_core nxt200x zl10353 cx24123 lgdt330x cx22702 dvb_pll cx8802
>> tda9887 cx8800 compat_ioctl32 v4l1_compat cx88xx
>> ir_common i2c_algo_bit video_buf btcx_risc tuner v4l2_common tveeprom
>> videodev radeon drm nvidia_agp agpgart w83627
>> hf hwmon_vid i2c_isa i2c_nforce2 i2c_core snd_seq_oss snd_pcm_oss
>> snd_mixer_oss snd_bt87x pl2303 usbserial snd_seq_
>> midi snd_emu10k1_synth snd_emux_synth snd_seq_virmidi
>> snd_seq_midi_event snd_seq_midi_emul snd_seq snd_intel8x0 snd
>> _emu10k1 snd_rawmidi snd_ac97_codec snd_ac97_bus snd_pcm snd_seq_device
>> snd_timer snd_page_alloc snd_util_mem snd_h
>> wdep snd soundcore nfsd exportfs lockd nfs_acl smbfs sunrpc ohci1394
>> ieee1394
>> Aug 6 01:23:08 coyote kernel: CPU: 0
>> Aug 6 01:23:08 coyote kernel: EIP: 0060:[<c01543b3>] Not tainted
>> VLI Aug 6 01:23:08 coyote kernel: EFLAGS: 00010202 (2.6.17.7 #1) Aug
>> 6 01:23:08 coyote kernel: EIP is at __pollwait+0x25/0x4b
>> Aug 6 01:23:08 coyote kernel: eax: fffff000 ebx: ee87d700 ecx:
>> 0000002e edx: 00000032
>> Aug 6 01:23:08 coyote kernel: esi: c08da398 edi: 00000145 ebp:
>> 00000040 esp: c8910b44
>> Aug 6 01:23:08 coyote kernel: ds: 007b es: 007b ss: 0068
>> Aug 6 01:23:08 coyote kernel: Process dumper (pid: 18807,
>
>While it's Amanda's dumper process that was running when your kernel
> crashed ...
>
>> threadinfo=c8910000 task=efef5090)
>> Aug 6 01:23:08 coyote kernel: Stack: c0f965e0 00000000 c029fba0
>> ee87d700 c08da398 c8910bd4 ee87d700 ee87d700
>> Aug 6 01:23:08 coyote kernel: ee87d700 00000000 00000145
>> 00000040 c027d05b ee87d700 c08da380 c8910bd4
>> Aug 6 01:23:08 coyote kernel: c0154642 ee87d700 c8910bd4
>> 000000e0 00000000 000000e0 00000000 00000000
>> Aug 6 01:23:08 coyote kernel: Call Trace:
>> Aug 6 01:23:08 coyote kernel: <c029fba0> tcp_poll+0x24/0x146
>> <c027d05b>
>
>... it's a kernel bug if your kernel crashes.
>Apparently it did a NULL pointer dereference in tcp_poll().
>
>> sock_poll+0x13/0x17
>> Aug 6 01:23:08 coyote kernel: <c0154642> do_select+0x1a4/0x33c
>> <c015438e> __pollwait+0x0/0x4b
>> Aug 6 01:42:30 coyote syslogd 1.4.1: restart.
>>
>> The delay was the e2fsck of all disks. Kernel is 2.6.17.7, amanda was
>> 2.5.0p2-20060424.
>>
>> kmail was running on another screen, and I was also playing
>> patience (solitaire) when everything went black.
>>
>> I've performed an amcleanup, and restarted the amanda wrapper script
>> that I use.
>>
>> The amstatus output looks fairly normal for this time of the night.
>>
>> Is there enough here to allow some finger pointing?
>
>Could be a kernel bug.
>Or a hardware bug.
>Or an environment-too-hot bug.
>
And its a bit like flipping a coin Geert, I've had way more than my share
of amanda probs running the 2.5.1 snapshots, I've had an uneasy feeling
about 2.6.17.7 that I can't put my finger on, and it was about 10F warmer
than usual last night. But I don't know where I can find a 3 sided
coin :-)
Thanks for the diagnosis. It was basicly a match for mine, so I'm not
loosing my touch that badly...
Yet, but I don't really like this aging process either. I carried my 13"
planer out of the shed and set it up yesterday, then carried it back in
that 90ish heat, plumb tuckered me out. It weighs about 80 lbs. But I
now have a sliding table on my bandsaw so I can use it for a power hacksaw
for thin sheets of softer metal, like the brass in a door kickplate
protector. I'm cutting it up into suitable sized pieces to feed my
micromill machine, and engraving text in the brass with emc(HEAD of emc2)
running it. "Fauncy" nameplates, that sort of thing. Not making any
money yet, but the potential is there (says he to justify the expense to
the missus :).
>Gr{oetje,eeting}s,
>
> Geert
>
>--
>Geert Uytterhoeven -- There's lots of Linux beyond ia32 --
> geert AT linux-m68k DOT org
>
>In personal conversations with technical people, I call myself a hacker.
> But when I'm talking to journalists I just say "programmer" or something
> like that. -- Linus Torvalds
--
Cheers, Gene
People having trouble with vz bouncing email to me should add the word
'online' between the 'verizon', and the dot which bypasses vz's
stupid bounce rules. I do use spamassassin too. :-)
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Copyright 2006 by Maurice Eugene Heskett, all rights reserved.
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