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torture: Dump ftrace buffer when the RCU grace period stalls
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 7 Mar 2014 22:15:28 +0000 (14:15 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 14 May 2014 16:46:07 +0000 (09:46 -0700)
commit945fa9c631b04febe295a3a2a00c7e4a3cfb97db
tree3817be3d2913840ee8ef9b1143ca72c6dd67430btree | snapshot (tar.gz zip)
parent499c632dce47e95280f8b99540c5db294053c94ccommit | diff
torture: Dump ftrace buffer when the RCU grace period stalls

This commit adds a call to rcutorture_trace_dump() to dump the ftrace
buffer when the RCU grace period stalls in order to help debug the
stall.  Note that this is different than the RCU CPU stall warning,
as it is rcutorture detecting the stall rather than the underlying RCU
implementation.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
kernel/rcu/rcutorture.c diff | blob | blame | history