At Tue, 05 Aug 2003 23:37:01 +0300, Antti Boman wrote:
This seems like the problem I've always had with my single processor with JACK and SCHED_FIFO, with 2.4.20 kernel. I haven't tried the realtime setting for a while, though.
if the exactly same problem happens on UP, the cause would be
different from what i thought originally. my guess was spin dead
locks or other SMP-specific issues, possibly around the linked pcm
streams.
It sounded as if it's the same problem, but naturally I don't know if it's caused by the same thing. I don't remember if it happened without X running, for example, so I have to test it without X, too. The frustrating part is that I really cannot debug anything, as the system completely locks up.
Maybe there's some other thing causing these? Should we gather a bit more in-depth information on our computers?
yes, this will help. at least, we need to investigate with the same driver/lib version (preferably with the same kernel and gcc).
Ok. I'll gather the information, do a few more tests, and post it on the list. I can also upgrade/downgrade the libs and programs if you think it's worth the while.
btw, the dead-lock can be related to the lowlevel part, too. recently i found a bug in es1968 driver which can cause a dead-lock with linked streams and xrun (typically as jack does). but in this case, it can happen regardless of SCHED_FIFO...
If you remember, I used to have huge problems with CMI8738 based integrated sound... "card", but they went away when installing newer ALSA drivers and libraries. Except from this SCHED_FIFO, of course.
Anyway, I'll first let you know about my current configuration, and you can tell me what to try.
Thanks, -a
------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01 _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
