Re: Re: [PATCH CFT] tons of logging patches

[Chris Mason <mason@suse.com>]

On Tue, 2002-07-09 at 10:00, Chris Mason wrote:
> On Tue, 2002-07-09 at 09:52, Dieter Nützel wrote:
> > On Monday, 8 July 2002 13:51, Chris Mason wrote:
> > > On Wed, 2002-07-03 at 20:28, Manuel Krause wrote:
> > >
> > > > So far the 13 prerelease works fine under rootflags boot and 
> > > > mount/remount option "data=ordered" on here.
> > >
> > > I think I've got the bug, it was newly introduced in -13.  New stuff
> > > will be uploaded today.
> > >
> Sigh, further testing showed I'd only fixed half of the bug.  The other
> half is somewhere deep writepage/truncate interaction.  I'm still trying
> to find it.

Well, after a week of fixing minor things and adding debugging code,
this bug still goes unsolved.  The only good news is that I can also
trigger it on pure 2.4.19-rc1 and ext2.  The bug seems to either be in
the VM or my ram, so I'm having a little memtest86 party overnight.

I've uploaded 03-beta-data-logging-16, it should be more stable and
faster than -11 and -13 were, but includes more debugging checks to try
and make sure I'm not screwing things up.  You can grab the patches at:

ftp://ftp.suse.com/pub/people/mason/patches/data-logging

If anyone wants to try and reproduce my memory corruption bug (can and
probably will lead to FS corruption), just let 10 fsx processes run in a
loop for ~3 hours or so on an SMP machine.

-chris