annotations.db corruption

Bernhard Reiter bernhard at
Tue May 9 14:24:11 EDT 2006

On Tue, May 09, 2006 at 12:55:34PM -0300, Sergio Devojno Bruder wrote:
> Bernhard Reiter wrote:
> >On Mon, May 08, 2006 at 03:33:11PM -0300, Sergio Devojno Bruder wrote:
> >>We already saw this 'dying process corrupting skiplist db' a lot, you 
> >>reproduce it with a really big db (>5-7M mailboxes) with little memory 
> >>(<= 1GB) in a linux box easily, some mmap operations will fail ENOMEM 
> >>and the process will give up with a resulting broken db.
> >>
> >>NOTE: mmap will fail with ENOMEM in linux with free memory and lots of 
> >>swap free.
> >
> >Are you in a position to try our experimental patch for this problem?
> >See patch.2 attached to
> That happened with our production server, ouch, it aches only 
> remembering it.
> I'll see what can We do to test it.

It would be very cool to have your test results, 
as we do not have an environment where we can reproduce the problem (so far).
We have a hyperthreading Pentium with SMP kernel, but this was not
enough so far.
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