Re: 2.5.18 / ext3 / oracle trouble

Christoph Rohland (cr@sap.com)
27 May 2002 09:23:04 +0200


Hi Zlatko,

On Sun, 26 May 2002, Zlatko Calusic wrote:
> Hi!
>
> After lots of testing, I can say that 2.5.18 works great in all
> three modes of ext3 for all but one purpose. Oracle database still
> gets corrupted during insert load. More precisely, online redo log
> gets corrupted, database panics and restore is in order.
>
> This leads me to thinking that there's something wrong with sysv
> shared memory in 2.5.x. Although the problem could also be in
> fsync() or swap_out() & co. paths, it's yet to be discovered.
>
> It could also be that journaled mode helps the trouble, and it could
> be that some swapping makes it more certain, but none of these two
> facts are proved for sure. Take it as an observation.
>
> Christoph, I don't know if you're still taking care of shmem in
> 2.5.x, so take my apologies if you didn't want to see this email.
>
> Regards,
> --
> Zlatko

Unfortunately I do not have the time to work on shmem right now. Hugh
Dickins is the right guy to contact nowadays.

Greetings
Christoph

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