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yaml --- r: 277198 b: refs/heads/master c: 2c01531 h: refs/heads/master v: v3
git-mirror · Dec 11, 2011 · 20339ac · 20339ac
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diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 91afaf300269aa99a4d646969b3258b74294ac4d
+refs/heads/master: 2c01531f08f8ba663a20d8472a3032f6df133b6e
diff --git a/trunk/Documentation/RCU/stallwarn.txt b/trunk/Documentation/RCU/stallwarn.txt
@@ -101,6 +101,11 @@ o	A CPU-bound real-time task in a CONFIG_PREEMPT_RT kernel that
 	CONFIG_TREE_PREEMPT_RCU case, you might see stall-warning
 	messages.
 
+o	A hardware or software issue shuts off the scheduler-clock
+	interrupt on a CPU that is not in dyntick-idle mode.  This
+	problem really has happened, and seems to be most likely to
+	result in RCU CPU stall warnings for CONFIG_NO_HZ=n kernels.
+
 o	A bug in the RCU implementation.
 
 o	A hardware failure.  This is quite unlikely, but has occurred