Messages in this thread | | | Date | Tue, 25 Jan 2022 14:04:04 +0700 | Subject | Re: [PATCH v3] rcu: Add per-CPU rcuc task info to RCU CPU stall warnings | From | Ammar Faizi <> |
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On 1/25/22 9:47 AM, Zqiang wrote: > When the 'use_softirq' be set zero, all RCU_SOFTIRQ processing > be moved to per-CPU rcuc kthreads, if the rcuc kthreads is > being starved, quiescent state can not report in time. the > RCU stall may be triggered. this commit adds a stack trace of > this CPU and dump rcuc kthreads stack to help analyze what > prevents rcuc kthreads from running. > > Suggested-by: Ammar Faizi <ammarfaizi2@gnuweeb.org> > Signed-off-by: Zqiang <qiang1.zhang@intel.com> > ---
For https://lore.kernel.org/lkml/20220125024744.4186726-1-qiang1.zhang@intel.com/T/
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Reviewed-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
``` Thank you! -- Ammar Faizi
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