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| author | Ingo Molnar <mingo@elte.hu> | 2008-05-12 21:21:04 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-25 06:34:44 +0200 |
| commit | 9c44bc03fff44ff04237a7d92e35304a0e50c331 (patch) | |
| tree | 64704ff78933a3a3bd8549801308d0557c02980d /include/linux/sched.h | |
| parent | 75d3bce2fc0a80f435fe12f2c9ed2632c8ac29e4 (diff) | |
| download | lwn-9c44bc03fff44ff04237a7d92e35304a0e50c331.tar.gz lwn-9c44bc03fff44ff04237a7d92e35304a0e50c331.zip | |
softlockup: allow panic on lockup
allow users to configure the softlockup detector to generate a panic
instead of a warning message.
high-availability systems might opt for this strict method (combined
with panic_timeout= boot option/sysctl), instead of generating
softlockup warnings ad infinitum.
also, automated tests work better if the system reboots reliably (into
a safe kernel) in case of a lockup.
The full spectrum of configurability is supported: boot option, sysctl
option and Kconfig option.
it's default-disabled.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 5395a6176f4b..71f5972dc48e 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -294,7 +294,8 @@ extern void softlockup_tick(void); extern void spawn_softlockup_task(void); extern void touch_softlockup_watchdog(void); extern void touch_all_softlockup_watchdogs(void); -extern unsigned long softlockup_thresh; +extern unsigned int softlockup_panic; +extern unsigned long softlockup_thresh; extern unsigned long sysctl_hung_task_check_count; extern unsigned long sysctl_hung_task_timeout_secs; extern unsigned long sysctl_hung_task_warnings; |