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marjag
n00b
Joined: 06 Dec 2005
Posts: 21
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 Posted: Thu Jan 31, 2008 4:06 pm Post subject: How to debug complete system freeze |
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Hi
I have had regular freeze on my computer for the last year. Sometimes it happens often and sometimes it can stay up for a whole day. I have changed the kernel several times and it doesn't really get any better or worse . Tested at least 2.6.20, 21, 23 and now up to 2.6.24
First I suspected memory HW problem but I have run MMtest several times for 12h and it comes down to nothing.
Each time the crash occurs some of the lamps on the keyboard flashes, cant really remember if it is caps-lock and numlock but I think so. What does that mean?
No sysreq-key combination is possible to run, even to reboot is impossible, since there is no action. The kernel seems to be completely dead. Can I enable any traces? What is the best approach to debug this kind of problem?
Any suggestions is appreciated.
//marjag
HW config:
AMD64 dual core
3GB mem
| Code: | pingu log # lspci
00:00.0 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South]
00:07.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
00:08.0 RAID bus controller: Promise Technology, Inc. PDC20378 (FastTrak 378/SATA 378) (rev 02)
00:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
00:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
00:0a.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller (rev 13)
00:0d.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01)
00:0e.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 64)
00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:11.6 Communication controller: VIA Technologies, Inc. AC'97 Modem Controller (rev 80)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation NV40.2 [GeForce 6800 LE] (rev a1) |
| Code: | pingu log # cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 43
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4600+
stepping : 1
cpu MHz : 2400.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good pni lahf_lm cmp_legacy
bogomips : 4809.74
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 43
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4600+
stepping : 1
cpu MHz : 2400.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good pni lahf_lm cmp_legacy
bogomips : 4809.74
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
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loftwyr
l33t
Joined: 29 Dec 2004
Posts: 970
Location: 43°38'23.62"N 79°27'8.60"W
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| Posted: Thu Jan 31, 2008 6:09 pm Post subject: |
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If the keyboard lights are flashing, that' a kernel panic. It can mean that there's a hardware problem (like a harddrive or memory) or a driver conflict or even a program that's doing something bad.
If you're sure it's not memory and you've had smart-mon-tools or something ensure your drive is good then go through your kernel config and make sure you're not loading drivers you don't need and loading all the ones you do.
There can be lots of reasons for it.
The best thing to do, if it happens regularly is leave your machine showing the text console and see if you can catch the error.
_________________
My emerge --info
Have you run revdep-rebuild lately? It's in gentoolkit and it's worth a shot if things don't work well.
Celebrating 5 years of Gentoo-ing. |
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marjag
n00b
Joined: 06 Dec 2005
Posts: 21
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| Posted: Thu Jan 31, 2008 7:35 pm Post subject: Another crash |
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I just had another crash, this time the HD-LED was glowing (fixed light) and everything froze. The keyboard LEDs didn't blink.
I will go through the kernel once more.
//marjag |
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Gentoo on AMD64
