torture: Dump ftrace buffer when the RCU grace period stalls

[deliverable/linux.git] / kernel / rcu / rcutorture.c

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 80d2d2440210b3cf92ac4df6c6681074878d7040..9decce0f110ca7810bf23d01871df8647c39fc5a 100644 (file)
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1034,6 +1034,7 @@ rcu_torture_printk(char *page)
                                "??? Writer stall state %d g%lu c%lu f%#x\n",
                                rcu_torture_writer_state,
                                gpnum, completed, flags);
+               rcutorture_trace_dump();
        }
        rtcv_snap = rcu_torture_current_version;
 }