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Date: Wed, 14 Sep 2011 16:39:17 +0800 From: Yong Zhang <yong.zhang0@...il.com> To: "Nallasellan, Singaravelan" <singaravelan.nallasellan@...el.com> Cc: Arjan van de Ven <arjan@...radead.org>, "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: Player Thread is not woken after period elapsed On Fri, Sep 09, 2011 at 06:12:03PM +0530, Nallasellan, Singaravelan wrote: > > > > > > Further investigation of this issue shows that the thread is in > > > > > > running state > > > > Hmm, how do you detect it? > > > > > > and it is not scheduled. I am not sure how I will go about debugging this > > issue. > > > > Any pointer would help. > > > > Could 'cat /proc/sched_debug' give some useful info? > Tried. It did not help. > > > > And BTW, have you tried CONFIG_DETECT_SOFTLOCKUP = y? > > > It is already set. That sound at least kwatchdogd could be scheduled suscessfully. And if CONFIG_DETECT_HUNG_TASK could not bite your "Player Thread", I have no idea what's going on. Maybe you could try the latest kernel? Thanks, Yong -- 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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