The patch titled
Document panic_on_unrecovered_nmi sysctl
has been added to the -mm tree. Its filename is
document-panic_on_unrecovered_nmi-sysctl.patch
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------------------------------------------------------
Subject: Document panic_on_unrecovered_nmi sysctl
From: Bernhard Walle <bwalle@xxxxxxx>
This adds "panic_on_unrecovered_nmi" sysctl to
Documentation/filesystems/proc.txt. The text is mainly taken from
http://readlist.com/lists/vger.kernel.org/linux-kernel/43/217998.html.
Signed-off-by: Bernhard Walle <bwalle@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/filesystems/proc.txt | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff -puN Documentation/filesystems/proc.txt~document-panic_on_unrecovered_nmi-sysctl Documentation/filesystems/proc.txt
--- a/Documentation/filesystems/proc.txt~document-panic_on_unrecovered_nmi-sysctl
+++ a/Documentation/filesystems/proc.txt
@@ -1322,6 +1322,18 @@ debugging information is displayed on co
NMI switch that most IA32 servers have fires unknown NMI up, for example.
If a system hangs up, try pressing the NMI switch.
+panic_on_unrecovered_nmi
+------------------------
+
+The default Linux behaviour on an NMI of either memory or unknown is to continue
+operation. For many environments such as scientific computing it is preferable
+that the box is taken out and the error dealt with than an uncorrected
+parity/ECC error get propogated.
+
+A small number of systems do generate NMI's for bizarre random reasons such as
+power management so the default is off. That sysctl works like the existing
+panic controls already in that directory.
+
nmi_watchdog
------------
_
Patches currently in -mm which might be from bwalle@xxxxxxx are
git-tip.patch
ia64-fix-the-difference-between-node_mem_map-and-node_start_pfn.patch
document-panic_on_unrecovered_nmi-sysctl.patch
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