linux-kernel - [PATCH 5/5] Document unknown_nmi_dump

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

Date:	Wed,  2 Jun 2010 09:39:19 +0200
From:	Vitaly Mayatskikh <v.mayatskih@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Vivek Goyal <vgoyal@...hat.com>,
	Randy Dunlap <rdunlap@...otime.net>
Subject: [PATCH 5/5] Document unknown_nmi_dump_log variable

Mention unknown_nmi_dump_log in sysctl documentation.

Signed-off-by: Vitaly Mayatskikh <v.mayatskih@...il.com>
---
 Documentation/sysctl/kernel.txt |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 3894eaa..b554838 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -65,6 +65,7 @@ show up in /proc/sys/kernel:
 - tainted
 - threads-max
 - unknown_nmi_panic
+- unknown_nmi_dump_log
 - version
 
 ==============================================================
@@ -515,6 +516,15 @@ If a system hangs up, try pressing the NMI switch.
 
 ==============================================================
 
+unknown_nmi_dump_log:
+
+The value in this file affects behavior of handling NMI. When dump
+capture kernel is loaded, the value is non-zero and unknown NMI is
+trapped, then vmcore's log buffer and CPU registers are extracted and
+displayed on console.
+
+==============================================================
+
 panic_on_unrecovered_nmi:
 
 The default Linux behaviour on an NMI of either memory or unknown is to continue
-- 
1.7.1

--
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/