Messages in this thread | | | Subject | Re: [BUG] 2.6.10-rc3 snd-powermac crash | From | Benjamin Herrenschmidt <> | Date | Mon, 20 Dec 2004 17:36:36 +0100 |
| |
On Mon, 2004-12-20 at 17:21 +0100, Takashi Iwai wrote: > At Sat, 18 Dec 2004 18:33:58 +0100, > Benjamin Herrenschmidt wrote: > > > > On Sat, 2004-12-18 at 18:07 +0100, Benjamin Herrenschmidt wrote: > > > Hi Takashi ! > > > > > > I get that regulary with latest kernel when using Alsa. Can't tell if it's new > > > as I used dmasound so far, just wanted to give Alsa a try... > > > > It seems to be related to oss emulation I'd say ... it's triggered by > > gtkpbbuttons volume control keys, which will open/ioctl/write/close the > > device very quicky (changing volume & outputing a beep) > > So, it's not reproducible when you do playback normally? > Can you get /proc/asound/card0/pcm0p/sub0/hw_params during playback?
No, it's not something that happens during normal playback, but occasionally when tweaking the volume ... I suspect a fast open/ioctl/close sequence or something like that... weird.
> > Maybe a race ? This is a laptop, so UP, no PREEMPT. > > Well, the volume and PCM shouldn't be racy. I'd first suspect another > bug in PCM OSS emulation code... > > Could you compile with CONFIG_SND_DEBUG=y and see whether it catches > anything?
Ok.
Ben.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |