Re: [patch 2/4] sched/mmcid: Protect transition on weakly ordered systems
From: Mathieu Desnoyers
Date: Fri Jan 30 2026 - 13:58:39 EST
On 2026-01-30 13:50, Shrikanth Hegde wrote:
Hi Thomas.
On 1/30/26 2:50 AM, Thomas Gleixner wrote:
Shrikanth reported a hard lockup which he observed once. The stack trace
shows the following CID related participants:
I lost the system where this was seen once.
But I gave the series a try on another power(NV) system.
Ran schbench (which seems to execute some cid stuff) and hackbench
and didn't see any splat in limited testing.
Just out of curiosity, did you manage to reproduce the
splat on the new system without the fixes applied ?
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com