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(parent: 5cd3719) | patch
rcu: Add GP-kthread-starvation checks to CPU stall warnings
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 17 Dec 2014 16:35:02 +0000 (08:35 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 16 Jan 2015 07:33:15 +0000 (23:33 -0800)
commitfb81a44b88e6173ed0f6e9d6a1afa5305fb63f6e
treefaa68798164b89dd6d37a9a591e62e9dfc7afdadtree | snapshot
parent5cd37193ce8539be1e6ef76be226f4bcc984e0f5commit | diff
rcu: Add GP-kthread-starvation checks to CPU stall warnings

This commit adds a message that is printed if the relevant grace-period
kthread has not been able to run for the two seconds preceding the
stall warning.  (The two seconds is double the maximum interval between
successive bouts of quiescent-state forcing.)

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Documentation/RCU/stallwarn.txt diff | blob | history
kernel/rcu/tree.c diff | blob | history
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