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Re: [PATCH 6/9] xfstests: add a new test that runs fsstress under ENOSPC

To: dave@xxxxxxxx
Subject: Re: [PATCH 6/9] xfstests: add a new test that runs fsstress under ENOSPC conditions
From: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
Date: Mon, 07 Nov 2011 17:31:11 +0400
Cc: linux-fsdevel@xxxxxxxxxxxxxxx, aelder@xxxxxxx, tytso@xxxxxxx, hch@xxxxxx, xfs@xxxxxxxxxxx
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On Mon, 7 Nov 2011 14:25:33 +0100, David Sterba <dave@xxxxxxxx> wrote:
> Hi,
> 
> I saw this while running the newly added tests on btrfs:
> 
> On Thu, Nov 03, 2011 at 09:55:50PM +0400, Dmitry Monakhov wrote:
> > --- /dev/null
> > +++ b/269
> > +_workout()
> > +{
> > +   echo ""
> > +   echo "Run fsstress"
> > +   echo ""
> > +   num_iterations=10
> > +   enospc_time=2
> > +   out=$SCRATCH_MNT/fsstress.$$
> > +   args="-p128 -n999999999 -f setattr=1 $FSSTRESS_AVOID -d $out"
> > +   echo "fsstress $args" >> $here/$seq.full
> > +   $FSSTRESS_PROG $args > /dev/null 2>&1 &
> > +   pid=$!
> > +   echo "Run dd writers in parallel"
> > +   for ((i=0; i < num_iterations; i++))
> > +   do
> > +           # File will be opened with O_TRUNC each time
> > +           dd if=/dev/zero of=$SCRATCH_MNT/SPACE_CONSUMER bs=1M count=1 \
> > +                   > /dev/null 2>&1
> > +           sleep $enospc_time
> > +   done
> > +   kill $pid
> 
> 269      [failed, exit status 1] - output mismatch (see 269.out.bad)
> --- 269.out     2011-11-07 13:26:23.000000000 +0100
> +++ 269.out.bad 2011-11-07 14:07:44.000000000 +0100
> @@ -3,3 +3,4 @@
>  Run fsstress
> 
>  Run dd writers in parallel
> +./269: line 60: kill: (9754) - No such process
> 
> > +   wait $pid
> > +}
> 
> and the test is reported to fail. Seems that the dd commands finish in less 2
> seconds.
Have you recompile fsstress via make?
test explicitly want use new feature "-f setattr=1"
> 
> 
> david
> --
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