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Re: system freezes with ext3

On Wednesday 30 October 2002 16:58, read_news c-hoehne de wrote:

Hi Carsten,

> I investigated newsgroups and mailinglists for aprox. 3 weeks now. But i
> have not found any comment about ext3 freezing a whole system.
> But:
> I do have 5 ext2 partitions on my system. I  upgraded theses partitions
> to ext3 with tunefs.
> after mounting 1 partition as ext3 all was fine. After that i mounted
> all partitions as ext3. And, after approx. 3-4 minutes my system
> freezes. No mouse or keyboard input was accepted. Only the keyboard LEDS
> were flashing.
> Has anybody else the same expirience?
> My System is a SuSE 8.1 with kernel 2.4.19
> Is this a known Problem? And if not, which is the correct way of
> reporting it.
The flashing of LED's seems that SuSE has the morse code if panic() in the 
kernel. I've never heard of ext3 freezing the mashine and I also never 
experienced this kind of thing. ... I assume you were in X?

Please test this again without beeing in X.

A small stress test can be:

while true; do dd if=/dev/zero of=/largefile bs=16384 count=131072; done

this will create a ~ 2gb file in / named largefile.

You should see an oops/panic output if the LED's are starting again flashing.
The output of above you have to feed ksymoops with.

Kind regards
        Marc-Christian Petersen


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