Messages in this thread | | | Date | Fri, 30 Sep 2022 12:19:34 +0200 | From | Borislav Petkov <> | Subject | Re: INFO: task rcu_gp:3 blocked for more than 122 seconds. |
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On Thu, Sep 29, 2022 at 08:37:22AM -0700, Paul E. McKenney wrote: > As discussed on IRC, I got nuttin' on this one. Looks like an RCU > expedited grace period is stuck waiting for its workqueue kthread, and > that this workqueue kthread is stuck for some reason.
Yeah, it is not that easy to repro - I need to wait a couple of minutes after it boots. Look at the timestamps:
[ 249.149378] INFO: task rcu_gp:3 blocked for more than 122 seconds. ^^^^^^^^^^^^^^
But it looks like sched/core is the culprit because merging it into Linus master triggers it.
Lemme bisect that.
Stay tuned.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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