Subject: hrtimer: Raise softirq if hrtimer irq stalled From: Watanabe Date: Sun, 28 Oct 2012 11:13:44 +0100 Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.14/patches-3.14.0-rt1.tar.xz When the hrtimer stall detection hits the softirq is not raised. Signed-off-by: Thomas Gleixner Cc: stable-rt@vger.kernel.org --- kernel/hrtimer.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -1560,11 +1560,7 @@ void hrtimer_interrupt(struct clock_even if (expires_next.tv64 == KTIME_MAX || !tick_program_event(expires_next, 0)) { cpu_base->hang_detected = 0; - - if (raise) - raise_softirq_irqoff(HRTIMER_SOFTIRQ); - - return; + goto out; } /* @@ -1608,6 +1604,9 @@ void hrtimer_interrupt(struct clock_even tick_program_event(expires_next, 1); printk_once(KERN_WARNING "hrtimer: interrupt took %llu ns\n", ktime_to_ns(delta)); +out: + if (raise) + raise_softirq_irqoff(HRTIMER_SOFTIRQ); } /*