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Mark Knecht wrote: |
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> On Sun, Feb 15, 2009 at 3:42 PM, Harry Putnam <reader@×××××××.com> wrote: |
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> |
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>> I've been experiencing spontaneous reboots on one gentoo machine |
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>> lately. Looking thru /var/log/messages... I see the restarts but |
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>> looking above that... I'm not seeing anything I recognize as being a |
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>> culprit. |
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>> |
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>> Its been happening for a few weeks... but I've been busy and only now |
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>> digging into it ( The machine is no kind of server ). |
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>> |
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>> It appears to only happen in X (I'm using xfce4) and I've only noticed |
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>> it since I started running 2.6.28 kernels. Although I couldn't say |
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>> that it seemed to be directly related. |
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>> |
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>> I mean I didn't boot into 2.6.28 and suddenly notice spontaneous |
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>> rebooting. |
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>> |
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>> It does not appear to be heat realated... but I am only now using |
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>> lm_sensors to keep an accurate record and see if there appears to be a |
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>> relationship. |
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>> |
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>> I've had two today so either its happening more often or I'm just |
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>> spending more time on that machine. |
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>> |
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>> It may also be on the first or second time its happened while I as |
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>> actually right at the keyboard. |
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>> |
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>> I'm sorry to be so vague about it, but in truth, I've been pretty lazy |
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>> about it... since no real harm comes of an unexpected reboot on that |
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>> machine (so far anyway). But clearly something that has to be figured |
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>> out. |
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>> |
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>> The only things I've checked so far... |
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>> 1) browsing thru /var/log/messages (Having trouble recognizing any |
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>> thing that looks suspicious. |
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>> |
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>> I have noticed what appears to be a time/date anomaly where the |
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>> progression of time is suddenly irregular. That is, an earlier |
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>> time shows up amongst some later times. |
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>> |
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>> It appears to have been me sudoing to visudo. And apparently |
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>> having /etc/sudoers open long enough for the closing of it to be |
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>> earlier than other events taking place. |
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>> |
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>> Again ... I'm not real sure exactly what happened there but it |
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>> does not appear to coincide with a reboot anyway. |
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>> |
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>> 2) checking how hot the cpu is getting (Doesn't appear to be a |
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>> problem) But now running a cron job recording temperatures every 10 |
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>> minutes. So that may turn up something. |
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>> |
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>> 3) checking for overfilled disks. (none show in df -h) |
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>> |
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>> |
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> |
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> Reseat memory and PCI cards, etc. Consider removing for a period of |
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> time any hardware not absolutely necessary to debug the problem. (I.e. |
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> - second video card, extra disk drives, extra network adapters, etc.) |
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> Run memtest86 for a few days if you can spare the machine. Run |
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> spinrite, etc., to look for drive problems. Open the box up and place |
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> a fan blowing extra air for additional cooling. |
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> |
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> good luck, |
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> Mark |
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> |
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> |
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> |
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|
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To add another test. I had this issue once before and it was a faulty |
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driver for my hard drives. I ran a command like this to test mine: |
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hdparm -Tt /dev/hda && hdparm -Tt /dev/hda && hdparm -Tt /dev/hda && |
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hdparm -Tt /dev/hda && hdparm -Tt /dev/hda |
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|
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If it can pass that then it should be all right and you can look |
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elsewhere. Mine would only fail when the drives were very busy and that |
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test should do that pretty good. |
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Hope that helps. |
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|
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Dale |
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|
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:-) :-) |
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