On Fri, May 06, 2022 at 06:08:08PM +0000, Catherine Hoang wrote:
> > On May 6, 2022, at 9:40 AM, Zorro Lang <zlang@xxxxxxxxxx> wrote:
> >
> > On Fri, May 06, 2022 at 09:14:42AM -0700, Darrick J. Wong wrote:
> >> On Fri, May 06, 2022 at 05:51:41PM +1000, Dave Chinner wrote:
> >>> From: Dave Chinner <dchinner@xxxxxxxxxx>
> >>>
> >>> Md5sum output for attributes created combined program output and
> >>> attribute values. This adds variable path names to the md5sum, so
> >>> there's no way to tell if the md5sum is actually correct for the
> >>> given attribute value that is returned as it's not constant from
> >>> test to test. Hence we can't actually say that the output is correct
> >>> because we can't reproduce exactly what we are hashing easily.
> >>>
> >>> Indeed, the last attr test in series (node w/ replace) had an
> >>> invalid md5sum. The attr value being produced after recovery was
> >>> correct, but the md5sum output match was failing. Golden output
> >>> appears to be wrong.
> >>>
> >>> Fix this issue by seperately dumping all the attributes on the inode
> >>> via a list operation to indicate their size, then dump the value of
> >>> the test attribute directly to md5sum. This means the md5sum for
> >>> the attributes using the same fixed values are all identical, so
> >>> it's easy to tell if the md5sum for a given test is correct. We also
> >>> check that all attributes that should be present after recovery are
> >>> still there (e.g. checks recovery didn't trash innocent bystanders).
> >>>
> >>> Further, the attribute replace tests replace an attribute with an
> >>> identical value, hence there is no way to tell if recovery has
> >>> resulted in the original being left behind or the new attribute
> >>> being fully recovered because both have the same name and value.
> >>> When replacing the attribute value, use a different sized value so
> >>> it is trivial to determine that we've recovered the new attribute
> >>> value correctly.
> >>>
> >>> Also, the test runs on the scratch device - there is no need to
> >>> remove the testdir in _cleanup. Doing so prevents post-mortem
> >>> failure analysis because it burns the dead, broken corpse to ash and
> >>> leaves no way of to determine cause of death.
> >>>
> >>> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> >>> ---
> >>>
> >>> Hi Catherine,
> >>>
> >>> These are all the mods I needed to make to be able to understand the
> >>> test failures I was getting as I debugged the new LARP recovery
> >>> algorithm I've written. You'll need to massage the test number in
> >>> this patch to apply it on top of your patch.
> >>>
> >>> I haven't added any new test cases yet, nor have I done anything to
> >>> manage the larp sysfs knob, but we'll need to do those in the near
> >>> future.
> >>>
> >>> Zorro, can you consider merging this test in the near future? We're
> >>> right at the point of merging the upstream kernel code and so really
> >>> need to start growing the test coverage of this feature, and this
> >>> test should simply not-run on kernels that don't have the feature
> >>> enabled....
> >>>
> >>> Cheers,
> >>>
> >>> Dave.
> >>> ---
> >>>
> >>> tests/xfs/600 | 20 +++++-----
> >>> tests/xfs/600.out | 109 ++++++++++++++++++++++++++++++++++++------------------
> >>> 2 files changed, 85 insertions(+), 44 deletions(-)
> >>>
> >>> diff --git a/tests/xfs/600 b/tests/xfs/600
> >>> index 252cdf27..84704646 100755
> >>> --- a/tests/xfs/600
> >>> +++ b/tests/xfs/600
> >>> @@ -16,7 +16,7 @@ _begin_fstest auto quick attr
> >>>
> >>> _cleanup()
> >>> {
> >>> - rm -rf $tmp.* $testdir
> >>> + rm -rf $tmp.*
> >>> test -w /sys/fs/xfs/debug/larp && \
> >>> echo 0 > /sys/fs/xfs/debug/larp
> >>
> >> Blergh, this ^^^^^^^^^ is going to need fixing too.
> >>
> >> Please save the old value, then write it back in the _cleanup function.
> >
> > Ok, I'm going to do that when I merge it, if Catherine wouldn't like to do
> > more changes in a V8 patch. If this case still need more changes, please tell
> > me in time, and then it might have to wait the fstests release after next, if
> > too late.
> >
> > Thanks,
> > Zorro
>
> Based on Dave’s feedback, it looks like the patch will need a few more
> changes before it’s ready.
Great, that would be really helpful if you'd like to rebase this patch to fstests
for-next branch. And how about combine Dave's patch with your patch? I don't think
it's worth merging two seperated patches for one signle new case. What does Dave think?
I just merged below two patchset[1] into xfs-5.18-fixes-1, then tried to test this case
(with you and Dave's patch). But it always failed as [2]. Please make sure it works
as expected with those kernel patches still reviewing, I can't be sure I have the
testing environment to guarantee that. Or I'd like to push this case after I see
its target kernel patchset be merged by xfs-linux at first.
Thanks,
Zorro
[1]
[PATCH v29 00/15] xfs: Log Attribute Replay
[PATCH 00/10 v2] xfs: LARP - clean up xfs_attr_set_iter state machine
[2] out.bad output:
*** mkfs
*** mount FS
attr_set: Input/output error
Could not set "attr_name" for SCRATCH_MNT/testdir/empty_file1
touch: cannot touch 'SCRATCH_MNT/testdir/empty_file1': Input/output error
xfs_logprint: unknown log operation type (1246)
Bad data in log
mount: /mnt/scratch: mount(2) system call failed: Structure needs cleaning.
>
> Catherine
> >
> >>
> >> <slightly ot rant>
> >>
> >> These sysfs knobs are a pain because they all reset to defaults if
> >> xfs.ko gets cycled. I know, I know, at least Dave and Ted don't do
> >> modular kernels and so never see this happen, but I do. I bet Dave also
> >> hasn't ever run xfs/434 or xfs/436, which might be why I'm the only one
> >> seeing dquot leaks with 5.19-next.
> >>
> >> (I might be able to lift the xfs-as-module requirement if "echo 1 >
> >> /sys/kernel/slab/*/validate" does what I think it might, since all we
> >> want to do is look for slab leaks, and those tests rmmod/modprobe as a
> >> brute force way of making the slab debug code check for leaks.)
> >>
> >> In case anyone's wondering, a solution to the knobs getting unset after
> >> an rmmod/modprobe cycle is to add a file
> >> /etc/udev/rules.d/99-fstester.rules containing:
> >>
> >> ACTION=="add|change", SUBSYSTEM=="module", DEVPATH=="/module/${module}", RUN+="/bin/sh -c \"echo ${value} > ${knob}\""
> >>
> >> which should be enough to keep LARP turned on.
> >>
> >> <end rant>
> >>
> >> Anyway, since this is a proposed test, I say that with this applied and
> >> the debug knob bits fixed, the whole thing is
> >> Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> >>
> >> --D
> >>
> >>> }
> >>> @@ -46,7 +46,9 @@ test_attr_replay()
> >>> touch $testfile
> >>>
> >>> # Verify attr recovery
> >>> - { $ATTR_PROG -g $attr_name $testfile | md5sum; } 2>&1 | _filter_scratch
> >>> + $ATTR_PROG -l $testfile | _filter_scratch
> >>> + echo -n "$attr_name: "
> >>> + $ATTR_PROG -q -g $attr_name $testfile | md5sum;
> >>>
> >>> echo ""
> >>> }
> >>> @@ -157,19 +159,19 @@ create_test_file remote_file2 1 $attr64k
> >>> test_attr_replay remote_file2 "attr_name2" $attr64k "s" "larp"
> >>> test_attr_replay remote_file2 "attr_name2" $attr64k "r" "larp"
> >>>
> >>> -# replace shortform
> >>> +# replace shortform with different value
> >>> create_test_file sf_file 2 $attr64
> >>> -test_attr_replay sf_file "attr_name2" $attr64 "s" "larp"
> >>> +test_attr_replay sf_file "attr_name2" $attr16 "s" "larp"
> >>>
> >>> -# replace leaf
> >>> -create_test_file leaf_file 2 $attr1k
> >>> -test_attr_replay leaf_file "attr_name2" $attr1k "s" "larp"
> >>> +# replace leaf with different value
> >>> +create_test_file leaf_file 3 $attr1k
> >>> +test_attr_replay leaf_file "attr_name2" $attr256 "s" "larp"
> >>>
> >>> -# replace node
> >>> +# replace node with a different value
> >>> create_test_file node_file 1 $attr64k
> >>> $ATTR_PROG -s "attr_name2" -V $attr1k $testdir/node_file \
> >>> >> $seqres.full
> >>> -test_attr_replay node_file "attr_name2" $attr1k "s" "larp"
> >>> +test_attr_replay node_file "attr_name2" $attr256 "s" "larp"
> >>>
> >>> echo "*** done"
> >>> status=0
> >>> diff --git a/tests/xfs/600.out b/tests/xfs/600.out
> >>> index 96b1d7d9..fe25ea3e 100644
> >>> --- a/tests/xfs/600.out
> >>> +++ b/tests/xfs/600.out
> >>> @@ -4,146 +4,185 @@ QA output created by 600
> >>> attr_set: Input/output error
> >>> Could not set "attr_name" for SCRATCH_MNT/testdir/empty_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/empty_file1': Input/output error
> >>> -21d850f99c43cc13abbe34838a8a3c8a -
> >>> +Attribute "attr_name" has a 65 byte value for SCRATCH_MNT/testdir/empty_file1
> >>> +attr_name: cfbe2a33be4601d2b655d099a18378fc -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name" for SCRATCH_MNT/testdir/empty_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/empty_file1': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name" for SCRATCH_MNT/testdir/empty_file1
> >>> +attr_name: attr_get: No data available
> >>> +Could not get "attr_name" for /mnt/scratch/testdir/empty_file1
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name" for SCRATCH_MNT/testdir/empty_file2
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/empty_file2': Input/output error
> >>> -2ff89c2935debc431745ec791be5421a -
> >>> +Attribute "attr_name" has a 1025 byte value for SCRATCH_MNT/testdir/empty_file2
> >>> +attr_name: 9fd415c49d67afc4b78fad4055a3a376 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name" for SCRATCH_MNT/testdir/empty_file2
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/empty_file2': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name" for SCRATCH_MNT/testdir/empty_file2
> >>> +attr_name: attr_get: No data available
> >>> +Could not get "attr_name" for /mnt/scratch/testdir/empty_file2
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name" for SCRATCH_MNT/testdir/empty_file3
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/empty_file3': Input/output error
> >>> -5d24b314242c52176c98ac4bd685da8b -
> >>> +Attribute "attr_name" has a 65536 byte value for SCRATCH_MNT/testdir/empty_file3
> >>> +attr_name: 7f6fd1b6d872108bd44bd143cbcdfa19 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name" for SCRATCH_MNT/testdir/empty_file3
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/empty_file3': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name" for SCRATCH_MNT/testdir/empty_file3
> >>> +attr_name: attr_get: No data available
> >>> +Could not get "attr_name" for /mnt/scratch/testdir/empty_file3
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/inline_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/inline_file1': Input/output error
> >>> -5a7b559a70d8e92b4f3c6f7158eead08 -
> >>> +Attribute "attr_name1" has a 16 byte value for SCRATCH_MNT/testdir/inline_file1
> >>> +Attribute "attr_name2" has a 65 byte value for SCRATCH_MNT/testdir/inline_file1
> >>> +attr_name2: cfbe2a33be4601d2b655d099a18378fc -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name2" for SCRATCH_MNT/testdir/inline_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/inline_file1': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name2" for SCRATCH_MNT/testdir/inline_file1
> >>> +Attribute "attr_name1" has a 16 byte value for SCRATCH_MNT/testdir/inline_file1
> >>> +attr_name2: attr_get: No data available
> >>> +Could not get "attr_name2" for /mnt/scratch/testdir/inline_file1
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/inline_file2
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/inline_file2': Input/output error
> >>> -5717d5e66c70be6bdb00ecbaca0b7749 -
> >>> +Attribute "attr_name2" has a 1025 byte value for SCRATCH_MNT/testdir/inline_file2
> >>> +Attribute "attr_name1" has a 16 byte value for SCRATCH_MNT/testdir/inline_file2
> >>> +attr_name2: 9fd415c49d67afc4b78fad4055a3a376 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name2" for SCRATCH_MNT/testdir/inline_file2
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/inline_file2': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name2" for SCRATCH_MNT/testdir/inline_file2
> >>> +Attribute "attr_name1" has a 16 byte value for SCRATCH_MNT/testdir/inline_file2
> >>> +attr_name2: attr_get: No data available
> >>> +Could not get "attr_name2" for /mnt/scratch/testdir/inline_file2
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/inline_file3
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/inline_file3': Input/output error
> >>> -5c929964efd1b243aa8cceb6524f4810 -
> >>> +Attribute "attr_name2" has a 65536 byte value for SCRATCH_MNT/testdir/inline_file3
> >>> +Attribute "attr_name1" has a 16 byte value for SCRATCH_MNT/testdir/inline_file3
> >>> +attr_name2: 7f6fd1b6d872108bd44bd143cbcdfa19 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name2" for SCRATCH_MNT/testdir/inline_file3
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/inline_file3': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name2" for SCRATCH_MNT/testdir/inline_file3
> >>> +Attribute "attr_name1" has a 16 byte value for SCRATCH_MNT/testdir/inline_file3
> >>> +attr_name2: attr_get: No data available
> >>> +Could not get "attr_name2" for /mnt/scratch/testdir/inline_file3
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/extent_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/extent_file1': Input/output error
> >>> -51ccb5cdfc9082060f0f94a8a108fea0 -
> >>> +Attribute "attr_name2" has a 1025 byte value for SCRATCH_MNT/testdir/extent_file1
> >>> +Attribute "attr_name1" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file1
> >>> +attr_name2: 9fd415c49d67afc4b78fad4055a3a376 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name2" for SCRATCH_MNT/testdir/extent_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/extent_file1': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name2" for SCRATCH_MNT/testdir/extent_file1
> >>> +Attribute "attr_name1" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file1
> >>> +attr_name2: attr_get: No data available
> >>> +Could not get "attr_name2" for /mnt/scratch/testdir/extent_file1
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name4" for SCRATCH_MNT/testdir/extent_file2
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/extent_file2': Input/output error
> >>> -8d530bbe852d8bca83b131d5b3e497f5 -
> >>> +Attribute "attr_name4" has a 1025 byte value for SCRATCH_MNT/testdir/extent_file2
> >>> +Attribute "attr_name2" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file2
> >>> +Attribute "attr_name3" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file2
> >>> +Attribute "attr_name1" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file2
> >>> +attr_name4: 9fd415c49d67afc4b78fad4055a3a376 -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name4" for SCRATCH_MNT/testdir/extent_file3
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/extent_file3': Input/output error
> >>> -5d77c4d3831a35bcbbd6e7677119ce9a -
> >>> +Attribute "attr_name4" has a 1025 byte value for SCRATCH_MNT/testdir/extent_file3
> >>> +Attribute "attr_name2" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file3
> >>> +Attribute "attr_name3" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file3
> >>> +Attribute "attr_name1" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file3
> >>> +attr_name4: 9fd415c49d67afc4b78fad4055a3a376 -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/extent_file4
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/extent_file4': Input/output error
> >>> -6707ec2431e4dbea20e17da0816520bb -
> >>> +Attribute "attr_name2" has a 65536 byte value for SCRATCH_MNT/testdir/extent_file4
> >>> +Attribute "attr_name1" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file4
> >>> +attr_name2: 7f6fd1b6d872108bd44bd143cbcdfa19 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name2" for SCRATCH_MNT/testdir/extent_file4
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/extent_file4': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name2" for SCRATCH_MNT/testdir/extent_file4
> >>> +Attribute "attr_name1" has a 1024 byte value for SCRATCH_MNT/testdir/extent_file4
> >>> +attr_name2: attr_get: No data available
> >>> +Could not get "attr_name2" for /mnt/scratch/testdir/extent_file4
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/remote_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/remote_file1': Input/output error
> >>> -767ebca3e4a6d24170857364f2bf2a3c -
> >>> +Attribute "attr_name2" has a 1025 byte value for SCRATCH_MNT/testdir/remote_file1
> >>> +Attribute "attr_name1" has a 65536 byte value for SCRATCH_MNT/testdir/remote_file1
> >>> +attr_name2: 9fd415c49d67afc4b78fad4055a3a376 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name2" for SCRATCH_MNT/testdir/remote_file1
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/remote_file1': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name2" for SCRATCH_MNT/testdir/remote_file1
> >>> +Attribute "attr_name1" has a 65536 byte value for SCRATCH_MNT/testdir/remote_file1
> >>> +attr_name2: attr_get: No data available
> >>> +Could not get "attr_name2" for /mnt/scratch/testdir/remote_file1
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/remote_file2
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/remote_file2': Input/output error
> >>> -fd84ddec89237e6d34a1703639efaebf -
> >>> +Attribute "attr_name2" has a 65536 byte value for SCRATCH_MNT/testdir/remote_file2
> >>> +Attribute "attr_name1" has a 65536 byte value for SCRATCH_MNT/testdir/remote_file2
> >>> +attr_name2: 7f6fd1b6d872108bd44bd143cbcdfa19 -
> >>>
> >>> attr_remove: Input/output error
> >>> Could not remove "attr_name2" for SCRATCH_MNT/testdir/remote_file2
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/remote_file2': Input/output error
> >>> -attr_get: No data available
> >>> -Could not get "attr_name2" for SCRATCH_MNT/testdir/remote_file2
> >>> +Attribute "attr_name1" has a 65536 byte value for SCRATCH_MNT/testdir/remote_file2
> >>> +attr_name2: attr_get: No data available
> >>> +Could not get "attr_name2" for /mnt/scratch/testdir/remote_file2
> >>> d41d8cd98f00b204e9800998ecf8427e -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/sf_file
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/sf_file': Input/output error
> >>> -34aaa49662bafb46c76e377454685071 -
> >>> +Attribute "attr_name1" has a 64 byte value for SCRATCH_MNT/testdir/sf_file
> >>> +Attribute "attr_name2" has a 17 byte value for SCRATCH_MNT/testdir/sf_file
> >>> +attr_name2: 9a6eb1bc9da3c66a9b495dfe2fe8a756 -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/leaf_file
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/leaf_file': Input/output error
> >>> -664e95ec28830ffb367c0950026e0d21 -
> >>> +Attribute "attr_name2" has a 257 byte value for SCRATCH_MNT/testdir/leaf_file
> >>> +Attribute "attr_name3" has a 1024 byte value for SCRATCH_MNT/testdir/leaf_file
> >>> +Attribute "attr_name1" has a 1024 byte value for SCRATCH_MNT/testdir/leaf_file
> >>> +attr_name2: f4ea5799d72a0a9bf2d56a685c9cba7a -
> >>>
> >>> attr_set: Input/output error
> >>> Could not set "attr_name2" for SCRATCH_MNT/testdir/node_file
> >>> touch: cannot touch 'SCRATCH_MNT/testdir/node_file': Input/output error
> >>> -bb37a78ce26472eeb711e3559933db42 -
> >>> +Attribute "attr_name2" has a 257 byte value for SCRATCH_MNT/testdir/node_file
> >>> +Attribute "attr_name1" has a 65536 byte value for SCRATCH_MNT/testdir/node_file
> >>> +attr_name2: f4ea5799d72a0a9bf2d56a685c9cba7a -
> >>>
> >>> *** done
> >>> --
> >>> Dave Chinner
> >>> david@xxxxxxxxxxxxx
> >>
> >
>
