[LU-2141] Soft lockup at mount time

• Type: Story
• Resolution: Duplicate
• Priority: Blocker
• Affects Version/s: Lustre 2.4.0
• Labels: topsequoia
• Environment: Lustre 3.5.53-3chaos, BG/Q ppc64 client
• Assignee: Alex Zhuravlev
• Reporter: Christopher Morrone (Inactive)

Description

We saw a Sequoia client soft lockup during filesystem mount time. The backtraces from the console are in the sequoia_ion_console.txt attachment.

No further info to go on at this time. Admins rebooted node before we got to investigate.

Issue Links

• duplicates: LU-2263 CPU Soft Lockups due to many threads spinning on import lock on Sequoia IO nodes