rcutorture: Dump GP kthread state on insufficient cb-flood laundering

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If a callback flood prevents grace period from completing, rcutorture
does a WARN_ON().  Avoiding this WARN_ON() currently requires that at
least three grace periods elapse during an eight-second callback-flood
interval.  Unfortunately, the current debug information does not include
anything about the grace-period state.  This commit therefore adds a
call to cur_ops->gp_kthread_dbg(), if this function pointer is non-NULL.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>

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Paul E. McKenney 2024-02-18 09:11:08 -08:00 • committed by Uladzislau Rezki (Sony)

parent 0a0467af0a

commit f8039457ee

1 changed files with 2 additions and 1 deletions

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kernel/rcu/rcutorture.c

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