On Wed, Aug 16, 2017 at 03:02:14PM +0800, Eryu Guan wrote: > > + > > +_scratch_unmount > > + > > +# agi->freecount is 0 here, corrupt it to show extra free inodes > > +$XFS_DB_PROG -x -c "agi 0" -c "write -d freecount 10" $SCRATCH_DEV >/dev/null 2>&1 > > redirect stdout and stderr to $seqres.full for debug purpose And you can use _scratch_xfs_db wrapper instead of open coded xfs_db command. And I found that "write -d" failed on a crc=0 XFS, though "write -c" allows corrupted data and bad CRC, but touch couldn't reproduce the hang in this case, because kernel detected bad crc first and aborted inode creation. I think we can force a CRC enabled XFS by _scratch_mkfs -m crc=1,finobt=0 >>$seqres.full 2>&1 Thanks, Eryu -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
