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authorDon Zickus <dzickus@redhat.com>2006-09-26 10:52:27 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:27 +0200
commit8da5adda91df3d2fcc5300e68da491694c9af019 (patch)
treebae152dabd728ba2f7fead421276e3cc9a779141 /include
parente33e89ab1a8d295de0500b697f4f31c3ceee9aa2 (diff)
[PATCH] x86: Allow users to force a panic on NMI
To quote Alan Cox: 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 unchanged. In other respects the new proc/sys entry works like the existing panic controls already in that directory. This is separate to the edac support - EDAC allows supported chipsets to handle ECC errors well, this change allows unsupported cases to at least panic rather than cause problems further down the line. Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/kernel.h1
-rw-r--r--include/linux/sysctl.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 2b2ae4fdce8..1ff9609300b 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -186,6 +186,7 @@ extern void bust_spinlocks(int yes);
extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
extern int panic_timeout;
extern int panic_on_oops;
+extern int panic_on_unrecovered_nmi;
extern int tainted;
extern const char *print_tainted(void);
extern void add_taint(unsigned);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index ecb79ba52ae..432778446ad 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -151,6 +151,7 @@ enum
KERN_COMPAT_LOG=73, /* int: print compat layer messages */
KERN_MAX_LOCK_DEPTH=74,
KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */
+ KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
};