Takashi Iwai wrote, on 13/10/14 23:10:
OK, then could you check whether reverting only the last one (of two) does *NOT* fix the issue? I think it shouldn't, but let us confirm.
Thanks for the feedback. Sorry, I'm not good on git commands. Having applied the two reversions previously, how do I get my git tree back to the same state as Linus' git head (ie undo the reversions)?
I could then apply the second reversion only and test that.
The alsa-info.sh shows the lockdep messages. I assume that it's seen even before 3.17+?
I didn't see ALSA-related lockdep messages in 3.17.0 or earlier, and have had the lockdep validator option enabled on kernels for several months now.
Last but not least, please check whether nonatomic flag is set wrongly by some reason like the patch below. (Check the kernel message after boot or try to playback some PCM).
Takashi
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 85fe1a216225..9c7cbd1b839e 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -2275,6 +2275,9 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream) int err; wait_queue_t wait;
- if (WARN_ON(pcm->nonatomic))
return -EINVAL;- if (pcm == NULL) { err = -ENODEV; goto __error1;
I can apply this patch, but I'm not entirely sure how to check for the state of the nonatomic flag.
Regards,
Arthur.