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Old 01-13-2010, 05:13 AM   #1
browny_amiga
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how to find out what causes a kernel panic?


Hi

I am having the strangest of problems. I am using a customized real time kernel 2.6.26 (the only changes are the real time add on, the rest is vanilla, config taken from the Debian Lenny standard install).
Now I remember having had kernel panics (like 3 a day) some months ago. I now worked for like 2 months without a single crash.
Now, they are back and it is really annoying, since I have NO IDEA what could be causing he problem.
The only difference now is that I am on a wired ethernet interface and while I was panic free, I used a wireless all the time.

How can I find out what is causing the panic? When the panic strikes, there is nothing I can do or see. the Caps lock is flashing obviously. Is there a way to do a dump of the error when the crash occurs?

Markus
 
Old 01-13-2010, 06:19 AM   #2
ozanbaba
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well, kernel debugging is ugly work.

you can try adding debug information to your kernel (in kernel hacking in kernel config ).
 
Old 01-13-2010, 07:37 AM   #3
browny_amiga
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In the meanwhile, it has become much worse, I get a kernel panic now about every 10 minutes. Normal working is impossible. What a headache!
I don't get it. Nothing changed, eveything is the same and now for some reason, the kernel has become totally insane.

I wish Linux would at least be able to show a blue screen, instead of just dieing. Like this, I got NOTHING to go on. I am right now waiting for the next crash, I hope I can still send this. DARN!!!

(having had 5 panics already today)
 
Old 01-13-2010, 09:01 AM   #4
AlucardZero
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Hardware problem. Start pulling hardware and/or trying different kernels (LiveCDs?)
 
Old 01-13-2010, 09:01 AM   #5
ozanbaba
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start from network card
 
Old 06-16-2010, 12:44 PM   #6
browny_amiga
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I am pretty sure it was the filesystem, after I did a fsck, it was all good. I just wish you could see a kernel panic the way you can in Windows, instead of the whole machine freezing and nothing to go on, no information about WHAT crashed on the screen.
 
  


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