Hi, i got the point. snd_pcm_playback_drain() (which is called at closing the pcm) never returns when OSS is running on mmap mode. now fixed on cvs. please give a try.
ciao, Takashi At 20 Mar 2002 20:58:22 +0100, Michael Jochum wrote: > > hi! > > some time back there has been a similar bug report about the same > problem: > http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg01675.html > with no response ... so i will be a bit more verbose :) > > it have this problem on all computers (Athlon, P3, P4, Cleron) i have > access to. all of them have different sound cards (SB128, SB Live, AC97 > Via686 and AC97 on a i845) and on all of them i have used various 0.9 > betas of alsa and versions of the linux kernel (2.4.5 to 2.4.18). > no problem with the oss driver > > i have done a strace run of rtcw and found some interesting things: > > somewhere rtcw opens the dsp device: > open("/dev/dsp", O_RDWR) = 16 > but i cant find the coresponding > close(16) > > this are the last lines of output (process locks here): > > write(2, "----- CL_Shutdown -----\n", 24) = 24 > write(2, "-----------------------\n", 24) = 24 > fcntl64(0, F_GETFL) = 0x802 (flags > O_RDWR|O_NONBLOCK) > fcntl64(0, F_SETFL, O_RDWR) = 0 > write(2, "Shutdown tty console\n", 21) = 21 > ioctl(0, SNDCTL_TMR_STOP, {B38400 opost isig icanon echo ...}) = 0 > _exit(0) = ? > > i dont know much about kernel internals - but isnt _exit a kernel syscal > that is supposed to close all open devices? > so what kind of bug is this? rtcw? alsa? kernel? > > this is a very anoying bug for me and it would be nice if someone could > help me with this problem. i have even mada a panel button to kill the > hanging processes :) > > tia, > michael. > > > > _______________________________________________ > Alsa-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/alsa-devel > _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
