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SubjectRe: 2.6.0-test2-mm3 and mysql
On Monday 04 August 2003 04:05, Matt Mackall wrote:
> On Sun, Aug 03, 2003 at 10:58:17PM +0400, Sergey S. Kostyliov wrote:
> > Hello Andrew,
> >
> > On Sunday 03 August 2003 05:04, Andrew Morton wrote:
> > > Shane Shrybman <> wrote:
> > > > One last thing, I have started seeing mysql database corruption
> > > > recently. I am not sure it is a kernel problem. And I don't know the
> > > > exact steps to reproduce it, but I think I started seeing it with
> > > > -test2-mm2. I haven't ever seen db corruption in the 8-12 months I
> > > > have being playing with mysql/php.
> > >
> > > hm, that's a worry. No additional info available?
> >
> > I also suffer from this problem (I'm speaking about heavy InnoDB
> > corruption here), but with vanilla 2.6.0-test2. I can't blame
> > MySQL/InnoDB because there are a lot of MySQL boxes around of me with the
> > same (in fact the box wich failed is replication slave) or allmost the
> > same database setup. All other boxes (2.4 kernel) works fine up to now.
> All Linux kernels prior to 2.6.0-test2-mm3-1 would silently fail to
> complete fsync() and msync() operations if they encountered an I/O
> error, resulting in corruption. If a particular disk subsystem was
> producing these errors, the symptoms would likely be:
> - no error reported
> - no messages in logs
> - independent of kernel version, etc.
> - suddenly appear at some point in drive life
> - works flawlessly on other machines
> If you can reproduce this corruption, please try running against mm3-1
> and seeing if it reports problems (both to fsync and in logs).

I've just got another one InnoDB crash with 2.6.0-test4.
As in previous case there was no messages in kernel log.
You can find mysql error log here.

It's a development server, so this isn't a big problem.
I do understand that this can easily be a hardware problem,
but the kernel silence is really sad in such case.
Memory is fine (at least according to memtest 3.0).

Any hints will be appreciated.

Best regards,
Sergey S. Kostyliov <>
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