Re: A unresponsive file system can hang all I/O in the system on linux-2.6.23-rc6 (dirty_thresh problem?)

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It's 2.6.23-rc6.

Thanks
--Chakri

On 9/28/07, Peter Zijlstra <[email protected]> wrote:
> On Fri, 2007-09-28 at 02:01 -0700, Chakri n wrote:
> > Thanks for explaining the adaptive logic.
> >
> > > However other devices will at that moment try to maintain a limit of 0,
> > > which ends up being similar to a sync mount.
> > >
> > > So they'll not get stuck, but they will be slow.
> > >
> > >
> >
> > Sync should be ok, when the situation is bad like this and some one
> > hijacked all the buffers.
> >
> > But, I see my simple dd to write 10blocks on local disk never
> > completes even after 10 minutes.
> >
> > [root@h46 ~]# dd if=/dev/zero of=/tmp/x count=10
> >
> > I think the process is completely stuck and is not progressing at all.
> >
> > Is something going wrong in the calculations where it does not fall
> > back to sync mode.
>
> What kernel is that?
>
>
>
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