linux-kernel - [tip:perf/nmi] nmi_watchdog: Tell the world we're active

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Tue, 2 Mar 2010 14:30:34 GMT
From:	tip-bot for Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	a.p.zijlstra@...llo.nl, tglx@...utronix.de, mingo@...e.hu,
	dzickus@...hat.com
Subject: [tip:perf/nmi] nmi_watchdog: Tell the world we're active

Commit-ID:  5671a10e2bc7f99d9157c6044faf8be2ef302361
Gitweb:     http://git.kernel.org/tip/5671a10e2bc7f99d9157c6044faf8be2ef302361
Author:     Peter Zijlstra <a.p.zijlstra@...llo.nl>
AuthorDate: Tue, 2 Mar 2010 14:20:14 +0100
Committer:  Ingo Molnar <mingo@...e.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@...llo.nl>
Cc: Don Zickus <dzickus@...hat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@...e.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();
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/