how to debug

[rray_1 at comcast.net]

On Tue, 3 Nov 2009, Matt Turner wrote:

> On Tue, Nov 3, 2009 at 11:56 AM,  <rray_1 at comcast.net> wrote:
>> I know this is all very vague but I have to start somewhere
>> I have a PIII pc that served me very well for several years
>> A month or so ago it started rebooting any time I ran X
>> I presently have CentOS 5.3 installed
>> I have tried Ubuntu and Fedora with the same results
>> X starts and will run normally for about 1 to 10 minutes then reboot
>> I have a Nvidia AGP card and a ATI PCI card both produce the same results
>> If I start X on the machine and only access it remotely via ssh it runs
>> without any problems
>> I have been using the xorg packages that come with the distributions
>> Presently 1.1.1-48.52.el5
>> Where do I start determining the problem
>
> You should start by looking at X's log file, located at
> /var/log/Xorg.0.log, and the output of the `dmesg` command.
>
> Errors in Xorg.0.log are marked by the line beginning with (EE).
>
> Matt
>

I added "kern.*  /var/log/kern_debug" to /etc/syslog.conf
I started X and ran till the machine crashed

Nov  3 11:57:05 rray1 kernel: invalid opcode: 0000 [#1] SMP
Nov  3 11:57:05 rray1 kernel: last sysfs file: 
/sys/devices/pci0000:00/0000:00:0c.0/0000:02:0c.0/resource
Nov  3 11:57:05 rray1 kernel: Modules linked in: ppp_async crc_ccitt ppp_
generic slhc firewire_ohci firewire_core crc_itu_t nfsd lockd nfs_acl aut
h_rpcgss exportfs ipv6 autofs4 hidp l2cap bluetooth sunrpc nf_conntrack_n
etbios_ns xt_limit ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state n
f_conntrack xt_tcpudp ipt_LOG iptable_filter ip_tables x_tables dm_mirror
  dm_multipath lp snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq
_midi_emul snd_emu10k1 snd_rawmidi snd_ac97_codec ac97_bus snd_seq_dummy
via686a pata_hpt3x2n snd_seq_oss hwmon pata_hpt37x snd_seq_midi_event snd
_seq asix usbnet mii snd_pcm_oss snd_mixer_oss snd_pcm ohci1394 ide_cd_mo
d snd_seq_device floppy cdrom snd_timer ieee1394 snd_page_alloc snd_util_
mem snd_hwdep serio_raw snd emu10k1_gp gameport soundcore pata_hpt366 i2c
_viapro parport_pc e1000 parport rtc_cmos i2c_core rtc_core pcspkr rtc_li
b dm_region_hash dm_log dm_mod aic7xxx scsi_transport_spi pata_via ata_ge
neric libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd [last un
loa
Nov  3 11:57:05 rray1 kernel: ed: microcode]
Nov  3 11:57:05 rray1 kernel:
Nov  3 11:57:05 rray1 kernel: Pid: 20794, comm: Xorg Not tainted (2.6.30.
5 #5) VT82C694X
Nov  3 11:57:05 rray1 kernel: EIP: 0060:[<c0417e9e>] EFLAGS: 00213002 CPU
: 0
Nov  3 11:57:05 rray1 kernel: EIP is at __bad_area_nosemaphore+0x2a/0xef
Nov  3 11:57:05 rray1 kernel: EAX: 00030001 EBX: f63b36b0 ECX: e9e9c031 E
DX: 00000005
Nov  3 11:57:05 rray1 kernel: ESI: ebfe6fb4 EDI: e9e9c031 EBP: 00000005 E
SP: ebfe6f94
Nov  3 11:57:05 rray1 kernel:  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 00
68
Nov  3 11:57:05 rray1 kernel: Process Xorg (pid: 20794, ti=ebfe6000 task=
f63b36b0 task.ti=ebfe6000)
Nov  3 11:57:05 rray1 kernel: Stack:
Nov  3 11:57:05 rray1 kernel:  00030001 081f249c 00000240 c0650fcd bf99e0
a8 c0417fba 00030001 c064f945
Nov  3 11:57:05 rray1 kernel:  081f249c 00000000 00000000 00000240 a725be
00 bf99e0a8 0000000e 0000007b
Nov  3 11:57:05 rray1 kernel:  0000007b 00000000 c0650fcd ffffffff e9e9c0
31 00000073 00213216 bf99e08c
Nov  3 11:57:05 rray1 kernel: Call Trace:
Nov  3 11:57:05 rray1 kernel:  [<c0650fcd>] ? do_page_fault+0x0/0x274
Nov  3 11:57:05 rray1 kernel:  [<c0417fba>] ? bad_area_nosemaphore+0xa/0x
c
Nov  3 11:57:05 rray1 kernel:  [<c064f945>] ? error_code+0x6d/0x74
Nov  3 11:57:05 rray1 kernel:  [<c0650fcd>] ? do_page_fault+0x0/0x274
Nov  3 11:57:05 rray1 kernel: Code: c3 55 89 d5 57 89 cf 56 89 c6 53 83 e
c 04 8b 44 24 18 64 8b 1d 00 c0 7d c0 f6 c2 04 89 04 24 0f 84 b9 00 00 00
  ff 89 f0 e8 8f fc <ff> ff 85 c0 0f 85 b5 00 00 00 83 3d 60 a1 74 c0 00 7
4 65 ba 0b
Nov  3 11:57:05 rray1 kernel: EIP: [<c0417e9e>] __bad_area_nosemaphore+0x
2a/0xef SS:ESP 0068:ebfe6f94
Nov  3 11:57:05 rray1 kernel: ---[ end trace c8eaacd176823614 ]---


Richard