Re: Error: Found malformed header in revision file

* Ph. Marek <philipp.marek@bmlv.gv.at> [2007-03-16 07:54:55]:

> On Friday 16 March 2007 00:40, Florent Daignière wrote:
> ...
> > Today I have encountered an other problem with the same repository :
> ...
> > I wonder if I'm really (un)lucky or if the hardware is to blame.
> As it seems to be (something like) reproduceable - may I suggest using strace?
> strace -f -tt -i -o /tmp/subversion-bug -p <pid of httpd> -p <other pid> ...
> would write a series of logfiles into /tmp/subversion-bug.PID - you could keep
> only the last 100 or so, remove the other ones to keep storage usage low.
>
> That would tell us whether it's software - and with a copy of
> /proc/<offending pid>/maps
> we might see (from the instruction pointer) which library is to blame,
> although that's more a hope than anything else.
>
> Regards,
>
> Phil

Today the repository got corrupted twice (no software update has been
done in the meantime). I realized it too late to get the first strace
log ... but I got the second one. Unfortunately I was unable to get
the memory map from /proc (I'm using -grsec on my kernel and it hasn't
helped).

Each time it has been a "Found malformed header in revision file" error
(like the first two ones I reported).

Here are the two revision files:
http://emu.freenetproject.org/~nextgens/12276
http://emu.freenetproject.org/~nextgens/12281

http://emu.freenetproject.org/~nextgens/subversion-httpd-strace.gz
 - be carefull : 20M - I don't have the exact commit timestamp so I kept
data around... the post-commit hook has been triggered at 20:51 I think.

I am reluctant to publish apache's logs here but may do it on demand.

Thanks for your time,
        NextGen$