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authorSimon Arlott <simon@fire.lp0.eu>2008-07-19 23:32:54 +0100
committerIngo Molnar <mingo@elte.hu>2008-07-20 10:10:31 +0200
commite3a61b0a8c0e342e700a61cd554b01050f333a36 (patch)
tree76081e45b9f6aa5d857b7b4ea02cd0014a9d5227 /arch/x86/kernel
parent5b664cb235e97afbf34db9c4d77f08ebd725335e (diff)
x86: add unknown_nmi_panic kernel parameter
It's not possible to enable the unknown_nmi_panic sysctl option until init is run. It's useful to be able to panic the kernel during boot too, this adds a parameter to enable this option. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/nmi.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index ec024b3baad..e0b44b7b717 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -448,6 +448,13 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
#ifdef CONFIG_SYSCTL
+static int __init setup_unknown_nmi_panic(char *str)
+{
+ unknown_nmi_panic = 1;
+ return 1;
+}
+__setup("unknown_nmi_panic", setup_unknown_nmi_panic);
+
static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu)
{
unsigned char reason = get_nmi_reason();