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(parent: 748bf47) | patch
rcu: Allow expedited RCU CPU stall warnings to dump task stacks
authorPaul E. McKenney <paulmck@kernel.org>
Tue, 20 Dec 2022 02:02:20 +0000 (18:02 -0800)
committerPaul E. McKenney <paulmck@kernel.org>
Wed, 4 Jan 2023 01:47:44 +0000 (17:47 -0800)
commit92987fe8bdd1cbec61919a394bb11316c5d860f4
tree2308b37ef7d2ebeb57c0a2391a51fccce00d53d1tree | snapshot
parent748bf47a89d722c7e77f8700705e2189be14e99ecommit | diff
rcu: Allow expedited RCU CPU stall warnings to dump task stacks

This commit introduces the rcupdate.rcu_exp_stall_task_details kernel
boot parameter, which cause expedited RCU CPU stall warnings to dump
the stacks of any tasks blocking the current expedited grace period.

Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Documentation/admin-guide/kernel-parameters.txt diff | blob | blame | history
kernel/rcu/rcu.h diff | blob | blame | history
kernel/rcu/tree_exp.h diff | blob | blame | history
kernel/rcu/update.c diff | blob | blame | history
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