Messages in this thread Patch in this message | | | Date | Tue, 2 Mar 2010 14:30:34 GMT | From | tip-bot for Peter Zijlstra <> | Subject | [tip:perf/nmi] nmi_watchdog: Tell the world we're active |
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Commit-ID: 5671a10e2bc7f99d9157c6044faf8be2ef302361 Gitweb: http://git.kernel.org/tip/5671a10e2bc7f99d9157c6044faf8be2ef302361 Author: Peter Zijlstra <a.p.zijlstra@chello.nl> AuthorDate: Tue, 2 Mar 2010 14:20:14 +0100 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Tue, 2 Mar 2010 15:02:05 +0100
nmi_watchdog: Tell the world we're active
Because I was wondering why perf stat wasn't working as expected..
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Don Zickus <dzickus@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/nmi_watchdog.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/kernel/nmi_watchdog.c b/kernel/nmi_watchdog.c index 0a6f57f..a79d211 100644 --- a/kernel/nmi_watchdog.c +++ b/kernel/nmi_watchdog.c @@ -244,6 +244,8 @@ static int __init spawn_nmi_watchdog_task(void) if (nonmi_watchdog) return 0; + printk(KERN_INFO "NMI watchdog enabled, takes one hw-pmu counter.\n"); + err = cpu_callback(&cpu_nfb, CPU_UP_PREPARE, cpu); if (err == NOTIFY_BAD) { BUG();
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