Re: [PATCH 06/17] xfs: run xfs_repair at the end of each test

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On Wed, Aug 03, 2016 at 05:15:42PM +0800, Eryu Guan wrote:
> On Thu, Jul 21, 2016 at 04:46:54PM -0700, Darrick J. Wong wrote:
> > Run xfs_repair twice at the end of each test -- once to rebuild
> > the btree indices, and again with -n to check the rebuild work.
> 
> Seems like it's two more xfs_repair, three in total :)

Ok, how about this new commit message?

"xfs: optionally test xfs_repair index rebuilding at the end of each test

"Run xfs_repair twice more at the end of each test -- once to rebuild
the btree indices, and again with -n to check the rebuild work.  This
is in addition to the regular dry-run spot check."

> > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> > ---
> >  README    |    4 ++++
> >  common/rc |   30 ++++++++++++++++++++++++++++++
> >  2 files changed, 34 insertions(+)
> > 
> > 
> > diff --git a/README b/README
> > index 2647e12..4509cc1 100644
> > --- a/README
> > +++ b/README
> > @@ -80,6 +80,10 @@ Preparing system for tests (IRIX and Linux):
> >                 added to the end of fsstresss and fsx invocations, respectively,
> >                 in case you wish to exclude certain operational modes from these
> >                 tests.
> > +             - set TEST_XFS_REPAIR_REBUILD=1 to have _check_xfs_filesystem
> > +               run xfs_repair -n to check the filesystem; xfs_repair to rebuild
> > +               metadata indexes; and xfs_repair -n (a third time) to check the
> > +               results of the rebuilding.
> >  
> >          - or add a case to the switch in common/config assigning
> >            these variables based on the hostname of your test
> > diff --git a/common/rc b/common/rc
> > index 7c79bf8..3b45578 100644
> > --- a/common/rc
> > +++ b/common/rc
> > @@ -2428,6 +2428,36 @@ _check_xfs_filesystem()
> >          ok=0
> >      fi
> >  
> > +    if [ -n "$TEST_XFS_REPAIR_REBUILD" ]; then
> > +        $XFS_REPAIR_PROG -n $extra_options $extra_log_options $extra_rt_options $device >$tmp.repair 2>&1
> > +        if [ $? -ne 0 ]
> > +        then
> > +            echo "_check_xfs_filesystem: filesystem on $device is inconsistent (r) (see $seqres.full)"
> > +
> > +            echo "_check_xfs_filesystem: filesystem on $device is inconsistent" >>$seqres.full
> > +            echo "*** xfs_repair -n output ***"	>>$seqres.full
> > +            cat $tmp.repair | _fix_malloc		>>$seqres.full
> > +            echo "*** end xfs_repair output"	>>$seqres.full
> > +
> > +            ok=0
> > +        fi
> > +        rm -f $tmp.fs_check $tmp.logprint $tmp.repair
> > +
> > +        $XFS_REPAIR_PROG $extra_options $extra_log_options $extra_rt_options $device >$tmp.repair 2>&1
> > +        if [ $? -ne 0 ]
> > +        then
> > +            echo "_check_xfs_filesystem: filesystem on $device is inconsistent (r) (see $seqres.full)"
> > +
> > +            echo "_check_xfs_filesystem: filesystem on $device is inconsistent" >>$seqres.full
> > +            echo "*** xfs_repair -n output ***"	>>$seqres.full
> > +            cat $tmp.repair | _fix_malloc		>>$seqres.full
> > +            echo "*** end xfs_repair output"	>>$seqres.full
> > +
> > +            ok=0
> > +        fi
> > +        rm -f $tmp.fs_check $tmp.logprint $tmp.repair
> > +    fi
> > +
> 
> I think we can move this hunk after the original xfs_repair and swap the
> xfs_repair order, i.e.
> 
> xfs_repair -n # this is the original repair check
> if <check_rebuild>; then
> 	xfs_repair # do rebuild without -n
> 	xfs_repair -n # check rebuild result
> fi

Ok.

> This seems more clear to me and we can mark which repair is failing more
> easily (right now the three xfs_repairs are all marked as "(r)", it's
> hard to say which one is failing), e.g.
> 
> xfs_repair -n # marked as "(r)", means "repair"
> if <check_rebuild>; then
> 	xfs_repair # mark as "(rb)", means "rebuild"?
> 	xfs_repair -n # mark as "(rr)", means "repair rebuild"?

We might as well use a full word to state which repair run failed.

"filesystem on /dev/sdX is inconsistent (rebuild)"
"filesystem on /dev/sdX is inconsistent (rebuild-reverify)"

--D

> fi
> 
> Thanks,
> Eryu
> 
> >      $XFS_REPAIR_PROG -n $extra_options $extra_log_options $extra_rt_options $device >$tmp.repair 2>&1
> >      if [ $? -ne 0 ]
> >      then
> > 

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