[fstests,1/2] shared/272: don't use data journaling with DAX

Message ID 20180117232351.19286-1-ross.zwisler@linux.intel.com
State Not Applicable
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  • [fstests,1/2] shared/272: don't use data journaling with DAX
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Commit Message

Ross Zwisler Jan. 17, 2018, 11:23 p.m.
shared/272 fails with kernels v4.15-rc1 and beyond when you are mounted
with DAX:

shared/272	 [failed, exit status 1] - output mismatch (see
    --- tests/shared/272.out	2015-12-05 13:12:17.038257578 -0700
    +++ /root/project/xfstests/results//shared/272.out.bad	2018-01-17
    15:37:18.581631116 -0700
    @@ -1,3 +1,3 @@
     QA output created by 272
     Switch data journalling mode. Silence is golden.
    -Check filesystem
    +/usr/bin/chattr: Device or resource busy while setting flags on
    (Run 'diff -u tests/shared/272.out
    /root/project/xfstests/results//shared/272.out.bad'  to see the entire

This is expected.  The following kernel commit:

commit e9072d859df3 ("ext4: prevent data corruption with journaling + DAX")

makes "chattr +j", which is attempting to turn on data journaling, return
-EBUSY if the ext4 DAX mount option is in use.  This was done to prevent
the data corruption shown in xfstest ext4/030, added by this xfstests

commit 750a24e99e48 ("ext4: test for DAX + journaling corruption")

So, just skip shared/272 if the DAX mount option is in use.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
 tests/shared/272 | 1 +
 1 file changed, 1 insertion(+)


diff --git a/tests/shared/272 b/tests/shared/272
index 7023b657..0c9763df 100755
--- a/tests/shared/272
+++ b/tests/shared/272
@@ -83,6 +83,7 @@  chattr_opt: $chattr_opt" >>$seqres.full
 _supported_fs ext3 ext4
 _supported_os Linux
+_exclude_scratch_mount_option dax
 rm -f $seqres.full
 _scratch_mkfs_sized $((64 * 1024 * 1024)) >> $seqres.full 2>&1