diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/panic.c | 9 | ||||
| -rw-r--r-- | kernel/watchdog.c | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/kernel/panic.c b/kernel/panic.c index 3344524cf6ff..06f31b49b3b4 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -61,6 +61,15 @@ void __weak panic_smp_self_stop(void) cpu_relax(); } +/* + * Stop ourselves in NMI context if another CPU has already panicked. Arch code + * may override this to prepare for crash dumping, e.g. save regs info. + */ +void __weak nmi_panic_self_stop(struct pt_regs *regs) +{ + panic_smp_self_stop(); +} + atomic_t panic_cpu = ATOMIC_INIT(PANIC_CPU_INVALID); /** diff --git a/kernel/watchdog.c b/kernel/watchdog.c index b9be18fae154..84b5035cb6a5 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -351,7 +351,7 @@ static void watchdog_overflow_callback(struct perf_event *event, trigger_allbutself_cpu_backtrace(); if (hardlockup_panic) - nmi_panic("Hard LOCKUP"); + nmi_panic(regs, "Hard LOCKUP"); __this_cpu_write(hard_watchdog_warn, true); return; |