RE: sync doesn't do the job

[Jason Li <jli@xxxxxxxxxxx>]

Hi Eric,

Thanks for replying.

I tried the following script:
        for i in `seq 1 100` do echo $i>>myfile done;
        sync
        (show dirty buffers)
        reboot -f
and
        for i in `seq 1 100` do echo $i>>myfile done;
        sync
        (show dirty buffers)
        mount -ro /
        reboot
Both failed to get the 100 numbers in the file.

Another thing I tried is to show dirty buffers (with a hack) -- both showed
no dirty buffer from the linux side.

We can try 1.2, but for now we need to understand where the problem is.

Best regards,
Jason



> What symptoms are you seeing?  Also, any chance you can try the 1.2
> code?  (although I understand that 1.1 may be in production now).  We
> did fix a last-minute problem in 1.2 which involved remount, readonly
> not flushing everything to disk.
> 
> XFS does use it's own "pagebuf" system for metadata, and it also uses
> delayed allocation on normal buffers, these are both a bit different
> from other Linux filesystems.  However, sync and remount 
> should work as
> expected.
> 
> Send us a box and we'll do some testing here.  ;-)
> 
> -Eric
> 
> On Wed, 2003-02-19 at 18:12, Jason Li wrote:
> > 
> > Hi,
> > 
> > We are running xfs1.1 on linux 2.4.19 with a CF. But sync 
> command doesn't
> > seem to flush all the CF, a remount -ro doesn't sync the 
> buffers either.
> > 
> > I heard the xfs uses a different buffer system, is this the cause?
> > 
> > Thanks so much for your input. Please cc me on your reply.
> > 
> > Regards,
> > Jason
> > 
> > 
> > [[HTML alternate version deleted]]
> > 
> 
> 
> 


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