[LU-4265] replay-ost-single test_6: space grew after dd (or didn't change)

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Major
• Affects Version/s: Lustre 2.6.0, Lustre 2.5.3, Lustre 2.9.0, Lustre 2.12.0, Lustre 2.13.0, Lustre 2.12.1
• Labels: zfs
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

This issue was created by maloo for Nathaniel Clark <[e-mail]>

This issue relates to the following test suite run:
http://maloo.whamcloud.com/test_sets/627ba06c-48b0-11e3-bdb5-52540035b04c
http://maloo.whamcloud.com/test_sets/600e6472-4f68-11e3-84d3-52540035b04c

The sub-test test_6 failed with the following error:

space grew after dd: before:77312128 after_dd:77312128

Info required for matching: replay-ost-single 6

Issue Links

• is related to: LU-12232 replay-ost-single test 6 fails with ''space grew after dd: before:13442048 after_dd:13442048''

Comments

[Andreas Dilger]

This stopped being hit in 2015.

[James Nunez (Inactive)]

It looks like this test is failing again/still. I’ve gone back to January 2018 and looks at all the times replay-ost-single test 6 failed with the ''space grew after dd:” error and we’ve seen six failures all for ZFS testing:
2018-08-17 - 2.11.53.69 - https://testing.whamcloud.com/test_sets/24be3e5c-a273-11e8-8853-52540065bddc
2019-02-26 – 2.12.0.1 - https://testing.whamcloud.com/test_sets/60e5eab4-3964-11e9-8f69-52540065bddc
2019-04-17 – 2.12.52.85 - https://testing.whamcloud.com/test_sets/4fd6a78e-6170-11e9-9720-52540065bddc
2019-04-19 – 2.12.52.89 - https://testing.whamcloud.com/test_sets/043e5b44-62fd-11e9-aeec-52540065bddc
2019-04-23 – 2.12.52.95 - https://testing.whamcloud.com/test_sets/bf51ebce-65f7-11e9-a6f9-52540065bddc
2019-04-23 – 2.12.1 RC1 - https://testing.whamcloud.com/test_sets/d53ee48a-665d-11e9-8bb1-52540065bddc

Some of the failures look questionable or, possibly, the error message should be modified. For example, when “before” and “after” are the same value:
''space grew after dd: before:13442048 after_dd:13442048''