Re: 2.6.11-rc3-bk5: XFS: fcron: could not write() buf to disk: Resource temporarily unavailable

[Alexander Y. Fomichev]

On Thursday 10 February 2005 07:54, Nathan Scott wrote:
> On Wed, Feb 09, 2005 at 05:44:54PM +0300, Alexander Y. Fomichev wrote:
> > On Wednesday 09 February 2005 04:29, Nathan Scott wrote:
> > > Is that an O_SYNC write, do you know?  Or a write to an inode
> > > with the sync flag set?
> >
> > Yes, it is O_SYNC, as i can see from fcron sources, and, no, kernel
>
> OK, thanks.
>
> > > I'm chasing down a problem similar to this atm, so far looks like
> > > something in the generic VM code below sync_page_range is giving
> > > back EAGAIN, and that is getting passed back out to userspace by
> > > XFS.  Not sure where/why/how its been caused yet though ... I'll
> > > let you know once I have a fix or have found the culprit change.
>
> Turns out it was actually XFS giving back this EAGAIN, indirectly -
> and some of the generic VM routines have been tweaked recently to
> propogate more sync write errors out to userspace.  Try this patch,
> it will fix your problem - we're still discussing if this is the
> ideal fix, so something else may be merged in the end.
>
> cheers.

Yes, it works. Thank you for quick patch.

-- 
Best regards.
        Alexander Y. Fomichev <gluk@xxxxxxx>
        Public PGP key: http://sysadminday.org.ru/gluk.asc
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