[LU-3280] when lock->l_lvb_data is freed, LDLM_FL_LVB_READY is not cleared

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: MB
• Severity: 3
• Assignee: Jinshan Xiong (Inactive)
• Reporter: CEA

Description

in ldlm_lock_decref_internal() when l_lvb_data is freed to reduce memory consumption, LDLM_FL_LVB_READY is not cleared, so later when the lock is reused lvb is never updated. We hit this case after a restore in HSM.
Patch will follow

Comments

[Jodi Levi (Inactive)]

Closing ticket as patch landed to master. If more work is needed, please let me know and I'll reopen.

[Jinshan Xiong (Inactive)]

Yes, it will affect normal usage of 2.4 because the inode can be purged by kernel but the corresponding layout lock can still exist. We should include this in 2.4.

[Andreas Dilger]

Jinshan, can you please take a look at this bug and see whether this will affect normal usage in 2.4.0, or does it only affect HSM?

[jacques-charles lafoucriere]

patch at http://review.whamcloud.com/6268