a858af2875fb291d0f4b0a4419fefbf03c2379c0 - arm/linux

commit	a858af2875fb291d0f4b0a4419fefbf03c2379c0	[log] [tgz]
author	Paul E. McKenney <paul.mckenney@linaro.org>	Mon Jan 16 13:29:10 2012 -0800
committer	Paul E. McKenney <paulmck@linux.vnet.ibm.com>	Tue Feb 21 09:03:49 2012 -0800
tree	5183796cbf50ec0cd3bd5c741db15705376dacbd
parent	13cfcca0e4e2d4cee1d0183c049eb34e54ac976e [diff]

rcu: Print scheduling-clock information on RCU CPU stall-warning messages

There have been situations where RCU CPU stall warnings were caused by
issues in scheduling-clock timer initialization.  To make it easier to
track these down, this commit causes the RCU CPU stall-warning messages
to print out the number of scheduling-clock interrupts taken in the
current grace period for each stalled CPU.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

kernel/rcutree.c[diff]
kernel/rcutree.h[diff]
kernel/rcutree_plugin.h[diff]
lib/Kconfig.debug[diff]

4 files changed

tree: 5183796cbf50ec0cd3bd5c741db15705376dacbd