Re: [LAU] Is ALSA using hrtimer?

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To: Pedro Lopez-Cabanillas <pedro.lopez.cabanillas@...>
Cc: <linux-audio-user@...>
Date: Friday, May 28, 2010 - 9:12 pm

I added your suggestion to
https://bugzilla.redhat.com/show_bug.cgi?id=597354#c5 which resolves
the coredump in drumstick-sysinfo

///////// ///////// ///////// /////////
Upstream author Pedro Lopez-Cabanillas suggested doing
'sudo modprobe snd-hrtimer'
prior to running Jackd.

Now drumstick-sysinfo doesn't crash. Furthermore, it looks like ALSA is using
the HRTimer:

gnulem-15-~/Documents> cat /proc/asound/seq/timer
Timer for queue 0 : HR timer
Period time : 0.001000000
Skew : 65536 / 65536

gnulem-16-~/Documents> cat /proc/asound/timers
G0: system timer : 1000.000us (10000000 ticks)
G3: HR timer : 0.001us (1000000000 ticks)
Client sequencer queue 0 : running
P0-0-0: PCM playback 0-0-0 : SLAVE
P0-0-1: PCM capture 0-0-1 : SLAVE
P1-0-0: PCM playback 1-0-0 : SLAVE
P1-0-1: PCM capture 1-0-1 : SLAVE
P1-0-2: PCM playback 1-0-2 : SLAVE
P1-0-3: PCM capture 1-0-3 : SLAVE
P1-1-0: PCM playback 1-1-0 : SLAVE
P2-0-0: PCM playback 2-0-0 : SLAVE
P2-0-1: PCM capture 2-0-1 : SLAVE
P4-0-0: PCM playback 4-0-0 : SLAVE
Client application 2396 : stopped
Client application 9950 : stopped
P4-0-1: PCM capture 4-0-1 : SLAVE
///////// ///////// ///////// /////////

Niels
http://nielsmayer.com
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Messages in current thread:
[LAU] Is ALSA using hrtimer?, Grant, (Thu May 27, 9:12 pm)
Re: [LAU] Is ALSA using hrtimer?, Pedro Lopez-Cabanillas, (Fri May 28, 2:07 pm)
Re: [LAU] Is ALSA using hrtimer?, Niels Mayer, (Fri May 28, 6:13 pm)
Re: [LAU] Is ALSA using hrtimer?, Niels Mayer, (Fri May 28, 9:12 pm)
Re: [LAU] Is ALSA using hrtimer?, Pedro Lopez-Cabanillas, (Fri May 28, 10:03 pm)
Re: [LAU] Is ALSA using hrtimer?, Paul Davis, (Fri May 28, 7:11 pm)
Re: [LAU] Is ALSA using hrtimer?, Clemens Ladisch, (Fri May 28, 6:16 am)
Re: [LAU] Is ALSA using hrtimer?, Grant, (Sun May 30, 6:02 pm)
Re: [LAU] Is ALSA using hrtimer?, Niels Mayer, (Sun May 30, 8:39 pm)
Re: [LAU] Is ALSA using hrtimer?, Paul Davis, (Mon May 31, 1:19 pm)
Re: [LAU] Is ALSA using hrtimer?, Ken Restivo, (Sat Jun 5, 7:10 pm)
Re: [LAU] Is ALSA using hrtimer?, Paul Davis, (Sat Jun 5, 9:19 pm)
Re: [LAU] Is ALSA using hrtimer?, Niels Mayer, (Mon May 31, 6:56 pm)
Re: [LAU] Is ALSA using hrtimer?, Niels Mayer, (Mon May 31, 12:08 am)
Re: [LAU] Is ALSA using hrtimer?, Paul Davis, (Sun May 30, 7:55 pm)