Re: XFS file corruption bug - test script

[James Foris <jforis@xxxxxxxxx>]

Nathan Scott wrote:

> On Thu, Mar 17, 2005 at 08:14:13PM -0600, James Foris wrote:
>  
>
> > Here is a script (developed by Rich Coe) that demonstrates the file
> > corruption problem found on our systems.
> >
> >    
> Just a quick update here, eecause some people are concerned.
> I've been running James' script without hitting the problem
> on a CVS kernel with the same MD setup.  Doesn't mean there
> isn't a problem, of course, but seems non-trivial to hit it
> at least.
>
> Discussing with James off-list, he's also found that using
> the -onoalign mount option completely removes the problem
> at his end, and he even sees better performance with that,
> oddly enough.  So, if you are seeing the same problem, you
> might find that workaround useful.
>
> James also sees the problem go away with debugging enabled,
> which suggests some kind of small race.  I'll keep looking
>  
>
> into it as time permits.  Actually, James, could you double
> check that the problem persists with the CVS 2.6.12-based
> kernel, please?  Couple of XFS fixes on the IO path there,
>  
OK. I will take a look at that and let you know what happens.

Thanks.

> perhaps they'll help (perhaps thats why I'm not seeing it).
>
> cheers.
>
>