echo "CoW and unmount"
sync
_dmerror_load_error_table
-$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 \
+ 2>&1 >> $seqres.full | _filter_xfs_io_error
_dmerror_load_working_table
echo "Rewrite"