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SubjectRe: OOPS: kernel BUG at transaction.c:1857 on 2.4.17 while rm'ing 700mb file on ext3 partition.
Stephen C. Tweedie wrote:
> On Thu, Jan 24, 2002 at 11:53:27PM +0100, frode wrote:
>>>>I got the following error while rm'ing a 700mb file from an ext3 partition:
>>>>Assertion failure in journal_unmap_buffer() at transaction.c:1857:
>>>>"transaction == journal->j_running_transaction"
>>>Hmm --- this is not one I think I've ever seen before.
> Have you been able to reproduce any problems yet?

No reproducible problems, just more random oopses (like in
http://marc.theaimsgroup.com/?l=linux-kernel&m=101205570604468&w=2)

> iput() crash; page list crash; jbd transaction crash. These look
> perfectly consistent with random memory corruption.
[memtest86]
> Try leaving it running overnight --- half an hour is very little time
> for a proper memory test.


Others have suggested this by mail also, and after running memtest for 4 hours,
what do you know, a bit error occured.

Test#: 4
Pass#: 6
Failing address: 0aed1f64 - 174.8mb
Good pattern: 00080000
Bad pattern: 000a0000
Error bits: 00020000
Count: 1

I'm pretty sure that 256mb no-brand memory chip I added one year ago is to blame.
I'll try running memtest86 for 8+ hours as soon as feasible, but I guess I
should just throw out the old RAM and put in some new.

I guess all I have to say is, sorry for wasting your time! :(

Anyway, thanks for your interest - at least I'm close to a solution now! :)

- Frode



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