[LU-10669] Potential race condition when unlinking MD

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: Amir Shehata (Inactive)
• Reporter: Amir Shehata (Inactive)

Description

There could be a potential race condition that could cause an MD to be unlinked twice. The first unlink will decrement the references counter and the second unlink would cause an assert on the reference counter.

two unlink paths can be hit at the same time, when request is expired and transfer finishes.

These code paths need to be investigated in more details.

Issue Links

• is related to: LU-11734 LNet crashes with 2.12.0-rc1: lnet_attach_rsp_tracker() ASSERTION(md->md_rspt_ptr == ((void *)0)) failed