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Subject[PATCH RFC] rcu: RCU CPU stall patches backported to 2.6.33-rc8
Hello!

This set backports a couple of RCU CPU stall detection patches from the
earlier series (http://lkml.org/lkml/2010/2/22/384) to 2.6.33-rc8 to
help track down some NMI issues.

These two patches fix an embarrassing deadlock that can affect
TREE_PREEMPT_RCU and add additional per-task output when tasks stall the
RCU grace period.

b/kernel/rcutree.c | 2 +
b/kernel/rcutree.h | 1
b/kernel/rcutree_plugin.h | 4 ---
b/lib/Kconfig.debug | 13 ++++++++++-
kernel/rcutree.c | 4 +++
kernel/rcutree_plugin.h | 52 ++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 71 insertions(+), 5 deletions(-)

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