sorry i did not reply sooner, i've been bogged down with work as well as preparation for a show.
i am in the same state that i was earlier. paul had suggested that it was a mid-level alsa problem... so i found an ancient (ie: small) hard drive and now have a reasonably fsckable system to "debug" with. i dove into the code and littered it with "printk" statements to try and catch something, but i haven't alotted sufficient time to this brutish attempt.
i am thinking that somewhere in the pcm open or capture callbacks, a pointer gets lost and some mem write process goes way out of range, hosing memory reserved for something else... uh, that's what i think atleast. it's bad, as i get no (hee hee hee)oops, whatsoever. however, my kernel programming knowledge consists of what i have crammed in over the last few weeks, so it is miniscule and confused ;).
by the end of next week, i'll be able to get back at it.
best of luck all around,
dan.
Mark Knecht wrote:
Dan, I was revisiting the Alsa-Dev archives looking for information and came across this email from you. I had suggested you look at mono files. It didn't work for you.
Thomas Charbonnel and I have been working on the HDSP 9652 driver. He does coding then I do testing. I am now consistently in pretty much the state you described below. However, for me, I don't really have to reboot. If I just start a CD playing using alsaplayer, then I will get between 1 second and maybe 45 seconds of audio, followed by a dead time with no audio, but if I wait, I'll again get more audio for a few seconds. On, off on, off.
I am on Alsa 0.9.6 with a bunch of patches that Thomas has done, but my results sound pretty similar to your. (I was not in as good a state earlier when we first talked!)
Have you made any headway solving this on your system?
Thanks, Mark
hello,
i modified hdsp.c to support my rev. 50 card last week (the trivial way), and have been experimenting with it for the past three days. everything seems to work - midi, spdif lock... - i even downloaded Charbonnel's mixer app, and it works great! i use a multiface.
however, when i try to play something with alsaplayer or aplay, my system freezes after 2 sec to 2 min of playback... sometimes i can get through a whole file, sometimes only partial, but an eventual lock-up is inevitable. i have not tried sending anything other than stereo, 44100kHz, 16bit files.
has anyone seen such behavior with this driver?
i am assuming it may have something to do with my setup: linux 2.4.20, alsa 0.9.5 (with trivial patch to hdsp.c), devfs, recent multiface/pci card with rev. 50 firmware.
there's atleast one other person with the same hammerfall set who will be trying it out in linux later this week...
any comments appreciated,
dan.
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