[LU-13553] o2iblnd: convert LASSERT (tx->tx_sending > 0); to proper error handling

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0, Lustre 2.12.6
• Severity: 3
• Assignee: Amir Shehata (Inactive)
• Reporter: Amir Shehata (Inactive)

Description

When a tx completes kiblnd_tx_complete() callback is invoked. We ensure:

LASSERT (tx->tx_sending > 0);

However this assert is being triggered in some rare scenarios.

The reasosn tx_sending would be 0 at this point is because:

1. ib_post_send() failed but OFED stack is still sending a tx complete event
2. we're getting two different events for the same tx

Instead of asserting, it'll be better to ignore that tx_complete event and print some more details on the tx in question.