[LU-5999] sanity test_44a: FAIL: ll_sparseness_verify 2097152

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Affects Version/s: Lustre 2.7.0
• Labels: zfs
• Environment: FSTYPE=zfs
• Severity: 3
• Assignee: WC Triage
• Reporter: Jian Yu

Description

Patch http://review.whamcloud.com/9760 for LU-4820 introduced a regression failure in sanity test 44a under ZFS configuration:

== sanity test 44a: test sparse pwrite ================================= 12:21:51 (1416486111)
--------writing /mnt/lustre/d44a-2097152 at 2097152
read(): Input/output error
 sanity test_44a: @@@@@@ FAIL: ll_sparseness_verify  2097152 

Maloo reports:
https://testing.hpdd.intel.com/test_sets/0f950f94-711f-11e4-95d2-5254006e85c2
https://testing.hpdd.intel.com/test_sets/a78e1d32-7e89-11e4-afba-5254006e85c2
https://testing.hpdd.intel.com/test_sets/4ebe303c-7e86-11e4-bf5a-5254006e85c2
https://testing.hpdd.intel.com/test_sets/b9ecadae-7e7f-11e4-bf5a-5254006e85c2

Info required for matching: sanity 44a

Issue Links

• is related to: LU-5998 sanityn test 16: failed with bus error

Comments

[Jodi Levi (Inactive)]

Patch landed to Master.

[Andreas Dilger]

Have pushed http://review.whamcloud.com/12990 to revert the change, since the patch only appears to be a performance optimization and nothing will re-break if it is reverted.

If the original patch is actually good, and the test is just broken because it isn't relevant for ZFS, then someone should push a patch to fix or disable the patch for ZFS. I'd question disabling the test, however, because it passed previously for ZFS so if it is claimed that this is not relevant for ZFS there needs to be a good reason behind it.