5.2-BETA: giving up on 4 buffers (ata)

[Arjan van Leeuwen]

On Friday 28 November 2003 00:11, you wrote:
> On Thursday 27 November 2003 10:43, Stefan Ehmann wrote:
> > On Wed, 2003-11-26 at 19:37, Matthias Andree wrote:
> > > Hi,
> > >
> > > when I rebooted my 5.2-BETA (kernel about 24 hours old), it gave up on
> > > flushing 4 dirty blocks.
> > >
> > > I had three UFS1 softdep file systems mounted on one ATA drive, one
> >
> > ext2
> >
> > > file system on another ATA drive and one ext2 file system on a SCSI
> > > drive.  Both ext2 file systems had been mounted read-only, so they
> >
> > can't
> >
> > > have had dirty blocks.
> >
> > This is a known problem for nearly three months now (See PR 56675). It
> > happens to me every time I shut down the system if i don't unmount my
> > (read-only) ext2 file systems manually.
>
> I have this same problem, but I only have ufs1 partitions, all mounted r/w.
> It seemed to appear about 3 weeks ago, so there has to be a commit in this
> timeframe that caused it.
>
> An extra inconvenience is that I always lose one or two files when I
> shutdown due to ATA write caching - if I turn it off, I don't lose files,
> but my system is too slow.
>
> Doing a manual 'sync' before shutting down seems to help.

FYI, I'm still seeing this problem on a -CURRENT system from today. Is there 
any way I can help to diagnose the cause of this problem? Is there already a 
fix available somewhere?

Best regards,

Arjan
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