Hi, This is the v2 patchset for testing the XFS umount hang problem caused by the pending dquota log item in AIL. The problem has not been fixed in XFS yet, and Carlos Maiolino is working on it [1]. I had tested it on 4.14-rc7, and the problem can be reproduced reliably. Changes since v1: * dmflakey: support multiple dm targets for a dm-flakey device * no update * xfs: test for umount hang caused by the pending dquota log item in AIL * a bunch of suggestions from Eryu Guan * update the dquota buffer after the error injection to better reproduce the problem * common/rc: support checking the version of dm-target in _require_dm_target() * new patch * introduce a way to check the availability of error_write feature in dm-flakey target, and accomplish it by checking the version of dm-target. * common/rc: factor out _get|set_xfs_scratch_sb_field() * new patch * the modified test cases had been tested after applying the patch: (1) xfs/098 failed, but the failure has nothing to do with the patch (2) xfs/339 and xfs/340 were not runnable, because rtdev + rmap is not supported now. (3) the remaing test cases passed v1: * https://www.spinics.net/lists/fstests/msg07622.html Comments and questions are welcome. Regards, Tao [1]: https://www.spinics.net/lists/linux-xfs/msg11614.html --- Hou Tao (4): dmflakey: support multiple dm targets for a dm-flakey device common/rc: support checking the version of dm-target in _require_dm_target() xfs: test for umount hang caused by the pending dquota log item in AIL common/rc: factor out _get|set_xfs_scratch_sb_field() common/dmflakey | 2 +- common/rc | 39 +++++++++++-- common/xfs | 20 +++++++ tests/xfs/007 | 6 +- tests/xfs/098 | 4 +- tests/xfs/186 | 3 +- tests/xfs/199 | 13 ++--- tests/xfs/307 | 11 +--- tests/xfs/308 | 11 +--- tests/xfs/339 | 6 +- tests/xfs/340 | 2 +- tests/xfs/999 | 163 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/999.out | 2 + tests/xfs/group | 1 + 14 files changed, 238 insertions(+), 45 deletions(-) create mode 100755 tests/xfs/999 create mode 100644 tests/xfs/999.out -- 2.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
