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Date: Thu, 11 Jun 2009 04:28:48 -0700 (PDT) From: David Miller <davem@...emloft.net> To: tiwai@...e.de Cc: linux-kernel@...r.kernel.org Subject: Re: sound skipping regression introduced in 2.6.30-rc8 From: Takashi Iwai <tiwai@...e.de> Date: Wed, 10 Jun 2009 21:37:14 +0200 > Could you set CONFIG_SND_PCM_XRUN_DEBUG=y and do > # echo 1 > /proc/asound/card0/pcm0p/xrun_debug > then check your app? Does it work better, and get any kernel messages? Yes, the skipping goes away and I get hw_ptr skipping kernel messages: [61581.519051] PCM: hw_ptr skipping! (pos=10240, delta=15368, period=1024, jdelta=0/32) [61584.420358] PCM: hw_ptr skipping! (pos=2048, delta=16328, period=1024, jdelta=2/34) [61593.956318] PCM: hw_ptr skipping! (pos=1024, delta=15368, period=1024, jdelta=0/32) [61596.964300] PCM: hw_ptr skipping! (pos=14336, delta=15368, period=1024, jdelta=0/32) [61600.036292] PCM: hw_ptr skipping! (pos=14336, delta=15368, period=1024, jdelta=0/32) [61605.454947] PCM: hw_ptr skipping! (pos=12288, delta=15368, period=1024, jdelta=0/32) > Also, it'd be helpful if you can check whether the problem exists in > the current sound git tree (for-linus branch), too. > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git for-linus I'm building this to test right now, will report when I try it out. -- 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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