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Date: Fri, 9 Sep 2011 14:07:25 +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 Thu, Sep 08, 2011 at 03:15:38PM +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? And BTW, have you tried CONFIG_DETECT_SOFTLOCKUP = y? Thanks, Yong > > > > > > Could you confirm if [commit f26f9af Sched: fix skip_clock_update > > > optimization] residents in your kernel? > I applied this patch manually. I still see the issue. > > > > And commit da7a735e51f9622eb3e1672594d4a41da01d7e4f > > http://marc.info/?l=linux-kernel&m=129527509622696&w=2 > This is already applied. > .��칻.�&�~�&�.��+-��ݶ.��w��˛���m�b��dz�ޖ)���w*.jg���.�����ݢj/���z�ޖ��2�ޙ���&�)ߡ�a����.�G���h�.�j:+v���w�٥>W����i�axP.j�m����.-�.+��d�_ -- Only stand for myself -- 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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