diff options
| author | Cyrill Gorcunov <gorcunov@gmail.com> | 2008-05-24 19:36:34 +0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-25 22:32:50 +0200 |
| commit | d1b946b97d71423f365fa797d1428e1847c0bec1 (patch) | |
| tree | 50774bfa6d77cc855bbf793dad6d5c7eefc2875a /arch/x86/kernel/nmi_32.c | |
| parent | c6425b9f143a75bbcd0a7684b4df40e20d0b2f32 (diff) | |
x86: nmi_32.c - add "panic" option
Allow to pass "panic" option in 32bit mode
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: hpa@zytor.com
Cc: mingo@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/nmi_32.c')
| -rw-r--r-- | arch/x86/kernel/nmi_32.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi_32.c index bd04a28f7a5c..4437fe1edabc 100644 --- a/arch/x86/kernel/nmi_32.c +++ b/arch/x86/kernel/nmi_32.c @@ -42,6 +42,7 @@ static cpumask_t backtrace_mask = CPU_MASK_NONE; * 0: the lapic NMI watchdog is disabled, but can be enabled */ atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ +static int panic_on_timeout; unsigned int nmi_watchdog = NMI_DEFAULT; static unsigned int nmi_hz = HZ; @@ -140,6 +141,14 @@ static int __init setup_nmi_watchdog(char *str) { int nmi; + if (!strncmp(str, "panic", 5)) { + panic_on_timeout = 1; + str = strchr(str, ','); + if (!str) + return 1; + ++str; + } + get_option(&str, &nmi); if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE)) @@ -374,7 +383,7 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason) * die_nmi will return ONLY if NOTIFY_STOP happens.. */ die_nmi("BUG: NMI Watchdog detected LOCKUP", - regs, 0); + regs, panic_on_timeout); } else { __get_cpu_var(last_irq_sum) = sum; local_set(&__get_cpu_var(alert_counter), 0); |