[LU-4309] mds_intent_policy ASSERTION(new_lock != NULL) failed: op 0x8 lockh 0x0

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Affects Version/s: Lustre 1.8.9
• Environment: RHEL 5.9/distro IB
• Severity: 2
• Assignee: Lai Siyao
• Reporter: Blake Caldwell

Description

An MDT thread hit an assertion in mds_intent_policy in what otherwise appeared to be normal operation.

I'm attaching the kernel log messages after the LBUG. These are from the console. We have a crash dump from the node, but no lustre log files.

Lustre build:
Nov 18 12:46:55 widow-mds2 kernel: [ 387.597792] Lustre: Build Version: v1_8_9_WC1--CHANGED-2.6.18-348.3.1.el5.widow