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Date: Wed, 07 Feb 2007 17:14:14 +0100 From: Thomas Gleixner <tglx@...utronix.de> To: Milan Svoboda <msvoboda@...rockwell.com> Cc: linux-kernel@...r.kernel.org Subject: Re: posix-timers overrun broken? On Wed, 2007-02-07 at 14:36 +0100, Milan Svoboda wrote: > But if the next interrupt arrives before function collect_signal is called > to actually deliver the > siginfo_t to userspace, the si.overrun is cleared in posix_timer_event and > we have just forgotten > one overrun... > > Am I wrong? Yes. posix_timer_event() is only called when the timer expires the first time. When the signal has been queued, the timer is not rearmed and the overrun is calculated in the actual signal delivery path, which calls do_schedule_next_timer(). tglx - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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