On Tue, 2005-03-22 at 10:08 -0500, Spencer Russell wrote: > Wow, seems like you're having pretty much exactly the same kinds > of troubles I've had, right down to the occasional keyboard > lockup. Maybe something strange with the via chipset? Nope, keyboard lockups happen here too. And others have reported the same, for me it's when I unplug my ua-25 so it's not card specific. > On Wed, Mar 23, 2005 at 02:32:22AM +0000, Steve Fosdick wrote: > > Jackd will sometimes run for a few seconds without error but soon starts > > reporting errors of the form: > > > > delay of 24606.000 usecs exceeds estimated spare time of 23134.000; restart ... > > delay of 24779.000 usecs exceeds estimated spare time of 23134.000; restart ... > > delay of 24781.000 usecs exceeds estimated spare time of 23134.000; restart ... > > delay of 24741.000 usecs exceeds estimated spare time of 23134.000; restart ... > > jackd watchdog: timeout - killing jackd > > See http://lalists.stanford.edu/lau/2005/03/0688.html which has gone ignored on both this list and the jack devel list. > > I have tried kernels 2.6.10, 2.6.11, 2.6.11.4 and 2.6.11.5. The 2.6.11 > > series seems to be closer to working. I've tried from 2.6.8.1 up to 2.6.12.rcX, no love. I also suspected IRQ issues, and digging through kernel-parameters.txt brought me this boot option: acpi_irq_balance Adding this to my grub.conf resulted in my usb bus no longer being shared with my graphics adapter and about 5 other things. Unfortunately this change in IRQ assignment seems to have zero effect. I'm not sure what's to blame for the "delay of XXX.XXX usecs" messages, however I know that more USB users than you are troubled by this. My intuitively ordered list of suspects is: 1) kernel 2) alsa-drivers 3) jackd and of course superseding all is my flaky hardware and software setup :) however as I find more people with these issues I'm less likely to blame myself. The ua-25 works flawlessly in OS X btw. -good luck -- Ryan Gallagher <ruinaudio@xxxxxxxxxxx>
