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(parent: d62df57) | patch
rcu: More clearly identify grace-period kthread stack dump
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 11 Jan 2018 20:08:20 +0000 (12:08 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 21 Feb 2018 00:10:29 +0000 (16:10 -0800)
commitd07aee2c035e04dce11209a870b48091a47bd04a
tree4edd492d889e362dc37de61ab1f885e4c1589b1btree | snapshot
parentd62df57370a5215fbf1b088d2ee51fa5d69bd0c3commit | diff
rcu: More clearly identify grace-period kthread stack dump

It is not always obvious that the stack dump from a starved grace-period
kthread isn't instead that of a CPU stalling the current grace period.
This commit therefore adds a pr_err() flagging these dumps.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcu/tree.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git