From e3a61b0a8c0e342e700a61cd554b01050f333a36 Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Sat, 19 Jul 2008 23:32:54 +0100 Subject: 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 Signed-off-by: Ingo Molnar --- arch/x86/kernel/nmi.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/x86/kernel/nmi.c') 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(); -- cgit v1.2.3