From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
bobby.prani@gmail.com,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 22/24] rcutorture: Dump trace buffer upon shutdown
Date: Tue, 12 Apr 2016 08:43:55 -0700 [thread overview]
Message-ID: <1460475837-26498-22-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160412154332.GA24983@linux.vnet.ibm.com>
When running from the scripts, rcutorture is completely headless,
so there is no way to to manually dump the trace buffer. This commit
therefore unconditionally dumps the trace buffer upon timed shutdown.
However, if you are using rmmod to end the test, it is still up to you
to manually dump the trace buffer.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
kernel/torture.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/torture.c b/kernel/torture.c
index e912ccd960f0..fa0bdeee17ac 100644
--- a/kernel/torture.c
+++ b/kernel/torture.c
@@ -451,6 +451,7 @@ static int torture_shutdown(void *arg)
torture_shutdown_hook();
else
VERBOSE_TOROUT_STRING("No torture_shutdown_hook(), skipping.");
+ ftrace_dump(DUMP_ALL);
kernel_power_off(); /* Shut down the system. */
return 0;
}
--
2.5.2
next prev parent reply other threads:[~2016-04-12 15:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-12 15:43 [PATCH tip/core/rcu 0/24] Torture-test changes for 4.7 Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 01/24] rcutorture: Update scripting to accommodate rcuperf Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 02/24] rcutorture: Allow for rcupdate.rcu_normal Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 03/24] rcutorture: Expedited-GP batch progress access to torturing Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 04/24] rcutorture: Add RCU grace-period performance tests Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 05/24] rcutorture: Documentation for rcuperf kernel parameters Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 06/24] rcutorture: Bind rcuperf reader/writer kthreads to CPUs Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 07/24] rcutorture: Set rcuperf writer kthreads to real-time priority Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 08/24] rcutorture: Print measure of batching efficiency Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 09/24] rcutorture: Make rcuperf collect expedited event-trace data Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 10/24] rcutorture: Make scripts analyze rcuperf trace data, if present Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 11/24] rcutorture: Add rcuperf holdoff boot parameter to reduce interference Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 12/24] rcutorture: Avoid RCU CPU stall warning and RT throttling Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 13/24] rcutorture: Add largish-system rcuperf scenario Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 14/24] rcuperf: Do not wake up shutdown wait queue if "shutdown" is false Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 15/24] rcutorture: Remove redundant initialization to zero Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 16/24] rcutorture: Consider FROZEN hotplug notifier transitions Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 17/24] torture: Clarify refusal to run more than one torture test Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 18/24] torture: Kill qemu, not parent process Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 19/24] rcutorture: Convert test duration to seconds early Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 20/24] rcutorture: Add OS-jitter capability Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 21/24] rcutorture: Don't rebuild identical kernel Paul E. McKenney
2016-04-12 15:43 ` Paul E. McKenney [this message]
2016-04-12 15:43 ` [PATCH tip/core/rcu 23/24] rcutorture: Add irqs-disabled test for call_rcu() Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 24/24] rcutorture: Add boot-time adjustment of leaf fanout Paul E. McKenney
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