This is used by the nmi watchdog, but also useful by the softdog when we're trying to figure out where exactly we're stuck. Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Cc: Imre Deak <imre.deak@xxxxxxxxx> References: https://bugs.freedesktop.org/show_bug.cgi?id=103160 Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> --- FIXME: Take the && 1 out once CI is configured to enable this. -Daniel --- drivers/watchdog/softdog.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c index 060740625485..3a1606011b17 100644 --- a/drivers/watchdog/softdog.c +++ b/drivers/watchdog/softdog.c @@ -63,6 +63,8 @@ static enum hrtimer_restart softdog_fire(struct hrtimer *timer) pr_crit("Triggered - Reboot ignored\n"); } else if (soft_panic) { pr_crit("Initiating panic\n"); + if (sysctl_hardlockup_all_cpu_backtrace && 1) + trigger_allbutself_cpu_backtrace(); panic("Software Watchdog Timer expired"); } else { pr_crit("Initiating system reboot\n"); -- 2.14.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
