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rcu: Add more debug info on "kthread starved" RCU CPU stall warnings
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 16 Apr 2015 18:02:25 +0000 (11:02 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 27 May 2015 19:58:02 +0000 (12:58 -0700)
commit81e701e4376232b2779f52f15e3b7413131bd8e4
treefd4da2e7259f5e448048c1db7f0276d87ec24ebdtree | snapshot
parent82efed06d5e370f1526ec93ff4c2c2496542f615commit | diff
rcu: Add more debug info on "kthread starved" RCU CPU stall warnings

This commit adds grace number and command-flags information to the
"kthread starved" message that is sometimes printed out as part of
RCU CPU stall warnings.  This message is caused by the corresponding
RCU grace-period kthread not having run for at least two seconds, and
this added information can be helpful when debugging.

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