XMMS (or some other audio player) 'hang' issues with intel8x0 anddmix plugin [u]

From: Martin Schlemmer [c]
Date: Sun Oct 31 2004 - 23:45:54 EST

Previous message: Dmitry Torokhov: "Re: [2.6.10-rc1-mm2] keyboard / synaptics not working"
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Hi,

I have mailed below to alsa-user a time or two already, but no
response as of yet, so I am wondering if anybody here have had
similar issues. Not much has changed, but I have also tried
BMP, and alsa-player, with similar results.

-----------

I have a Asus P4C800-E with a SoundMax 1985 audio chip on.
Alsa-lib-1.0.[56] and 2.6.[6789] kernel. I have dmix setup (.asoundrc
below).

Now I mostly use XMMS for playing mp3's, and intermittently xmms
will just 'hang'. It is not locked or anything, but the 'graph'
just stand still, and no audio. If I press play again, it starts
to play for some time again. This is especially easy to duplicate
if the box is under heavy load. If I use the device directly,
without the dmix plugin, it works fine, or if I use oss emulation,
it works fine as well ...

If any more info is needed, let me know. My .asoundrc and a strace
of XMMS pid follows.

My .asoundrc looks like this:

---
pcm.!default {
type plug
slave.pcm "asymed"
}

pcm.dsp0 {
type plug
slave.pcm "asymed"
}

ctl.mixer0 {
type hw
card 0
}

pcm.asymed {
type asym
playback.pcm "dmixer"
capture.pcm "mixin"
}

pcm.dmixer {
type dmix
ipc_key 1025
slave {
pcm "hw:0,0"
# period_time 0
# period_size 1024
# buffer_size 4096
# periods 128
# rate 48000
}
bindings {
0 0
1 1
}
}

pcm.mixin {
type dsnoop
ipc_key 1026
ipc_key_add_uid yes
slave {
pcm "hw:0,0"
channels 2
# period_size 1024
# buffer_size 4096
# rate 48000
# periods 0
# period_time 0
}
bindings {
0 0
0 1
}
}
---

And a strace of the xmms pid something like this (keeps looping,
and stops for a few seconds at every other poll):

---
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0
gettimeofday({1090098067, 90349}, NULL) = 0
gettimeofday({1090098067, 90384}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\240\2\0\0L\0\20"..., 116) = 116
read(3, "\1\2\257\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098067, 90817}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098067, 101150}, NULL) = 0
gettimeofday({1090098067, 101214}, NULL) = 0
gettimeofday({1090098067, 101275}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 8) = 0
gettimeofday({1090098067, 110151}, NULL) = 0
gettimeofday({1090098067, 110194}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0
gettimeofday({1090098067, 110350}, NULL) = 0
gettimeofday({1090098067, 110387}, NULL) = 0
gettimeofday({1090098067, 110485}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\0\2\20\0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098067, 120150}, NULL) = 0
gettimeofday({1090098067, 120191}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0
gettimeofday({1090098067, 120345}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\253\0\0\0p\0"..., 76) = 76
read(3, "\1\2\264\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098067, 120680}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098067, 130139}, NULL) = 0
gettimeofday({1090098067, 130176}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0
gettimeofday({1090098067, 130319}, NULL) = 0
gettimeofday({1090098067, 130353}, NULL) = 0
gettimeofday({1090098067, 130438}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0P\2\20\0L\0\20\0"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 727050}, NULL) = 0
gettimeofday({1090098071, 727116}, NULL) = 0
gettimeofday({1090098071, 727154}, NULL) = 0
gettimeofday({1090098071, 727261}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\240\2\20\0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 738803}, NULL) = 0
gettimeofday({1090098071, 738864}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\254\0\0\0p\0"..., 76) = 76
read(3, "\1\2\272\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098071, 739165}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 750043}, NULL) = 0
gettimeofday({1090098071, 750108}, NULL) = 0
gettimeofday({1090098071, 750145}, NULL) = 0
gettimeofday({1090098071, 750249}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\0\2 \0L\0\20\0"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 6) = 0
gettimeofday({1090098071, 758043}, NULL) = 0
gettimeofday({1090098071, 758090}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 1) = 0
gettimeofday({1090098071, 760033}, NULL) = 0
gettimeofday({1090098071, 760075}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0
gettimeofday({1090098071, 760254}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\255\0\0\0p\0"..., 76) = 76
read(3, "\1\2\277\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098071, 760592}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 776028}, NULL) = 0
gettimeofday({1090098071, 776093}, NULL) = 0
gettimeofday({1090098071, 776128}, NULL) = 0
gettimeofday({1090098071, 776232}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0P\2 \0L\0\20\0\30"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 809155}, NULL) = 0
gettimeofday({1090098071, 809234}, NULL) = 0
gettimeofday({1090098071, 809273}, NULL) = 0
read(15, 0xbfffe850, 72) = -1 EAGAIN (Resource temporarily unavailable)
gettimeofday({1090098071, 809426}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\240\2 \0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 820034}, NULL) = 0
gettimeofday({1090098071, 820103}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\256\0\0\0p\0"..., 76) = 76
read(3, "\1\2\305\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098071, 820476}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 831020}, NULL) = 0
gettimeofday({1090098071, 831083}, NULL) = 0
gettimeofday({1090098071, 831119}, NULL) = 0
gettimeofday({1090098071, 831223}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\0\0020\0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 7) = 0
gettimeofday({1090098071, 840020}, NULL) = 0
gettimeofday({1090098071, 840066}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0
gettimeofday({1090098071, 840250}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\257\0\0\0p\0"..., 76) = 76
read(3, "\1\2\312\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098071, 840586}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 852096}, NULL) = 0
gettimeofday({1090098071, 852161}, NULL) = 0
gettimeofday({1090098071, 852211}, NULL) = 0
gettimeofday({1090098071, 852306}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0P\0020\0L\0\20\0"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 864690}, NULL) = 0
gettimeofday({1090098071, 864754}, NULL) = 0
gettimeofday({1090098071, 864817}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 5) = 0
gettimeofday({1090098071, 871014}, NULL) = 0
gettimeofday({1090098071, 871057}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 3) = 0
gettimeofday({1090098071, 875023}, NULL) = 0
gettimeofday({1090098071, 875094}, NULL) = 0
gettimeofday({1090098071, 875135}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\240\0020\0L\0\20"..., 88) = 88
read(3, "\1\2\317\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098071, 875567}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
select(4, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 904090}, NULL) = 0
gettimeofday({1090098071, 904151}, NULL) = 0
gettimeofday({1090098071, 904197}, NULL) = 0
gettimeofday({1090098071, 904288}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\0\3\0\0L\0\20\0"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 915044}, NULL) = 0
gettimeofday({1090098071, 915135}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\1\0\0\0p\0\31"..., 48) = 48
read(3, "\1\2\323\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098071, 915546}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 932763}, NULL) = 0
gettimeofday({1090098071, 932831}, NULL) = 0
gettimeofday({1090098071, 932869}, NULL) = 0
gettimeofday({1090098071, 932976}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0P\3\0\0L\0\20\0"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 1) = 0
gettimeofday({1090098071, 935996}, NULL) = 0
gettimeofday({1090098071, 936049}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 6) = 0
gettimeofday({1090098071, 943001}, NULL) = 0
gettimeofday({1090098071, 943068}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\2\0\0\0p\0\31"..., 48) = 48
read(3, "\1\2\327\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098071, 943424}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 954008}, NULL) = 0
gettimeofday({1090098071, 954069}, NULL) = 0
gettimeofday({1090098071, 954103}, NULL) = 0
read(15, 0xbfffe850, 72) = -1 EAGAIN (Resource temporarily unavailable)
gettimeofday({1090098071, 954256}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\240\3\0\0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098071, 968303}, NULL) = 0
gettimeofday({1090098071, 968368}, NULL) = 0
gettimeofday({1090098071, 968408}, NULL) = 0
gettimeofday({1090098071, 968516}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\0\3\20\0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098072, 2636}, NULL) = 0
gettimeofday({1090098072, 2699}, NULL) = 0
gettimeofday({1090098072, 2736}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0P\3\20\0L\0\20\0"..., 88) = 88
read(3, "\1\2\335\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098072, 3081}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098072, 13986}, NULL) = 0
gettimeofday({1090098072, 14056}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\4\0\0\0p\0\31"..., 48) = 48
read(3, "\1\2\340\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098072, 14404}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098072, 25462}, NULL) = 0
gettimeofday({1090098072, 25524}, NULL) = 0
gettimeofday({1090098072, 25559}, NULL) = 0
gettimeofday({1090098072, 25649}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\240\3\20\0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 6) = 0
gettimeofday({1090098072, 32981}, NULL) = 0
gettimeofday({1090098072, 33028}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 2) = 0
gettimeofday({1090098072, 36059}, NULL) = 0
gettimeofday({1090098072, 36129}, NULL) = 0
write(3, ">\3\7\0\213\7\300\2\32\0\300\0029\0\300\2\5\0\0\0p\0\31"..., 48) = 48
read(3, "\1\2\344\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098072, 36464}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098072, 46970}, NULL) = 0
gettimeofday({1090098072, 47034}, NULL) = 0
gettimeofday({1090098072, 47070}, NULL) = 0
gettimeofday({1090098072, 47176}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\0\3 \0L\0\20\0"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098072, 58798}, NULL) = 0
gettimeofday({1090098072, 58861}, NULL) = 0
gettimeofday({1090098072, 58931}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 4) = 0
gettimeofday({1090098072, 64932}, NULL) = 0
gettimeofday({1090098072, 64976}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 3) = 0
gettimeofday({1090098072, 68955}, NULL) = 0
gettimeofday({1090098072, 69020}, NULL) = 0
gettimeofday({1090098072, 69058}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0P\3 \0L\0\20\0\30"..., 88) = 88
read(3, "\1\2\351\376\0\0\0\0\22\0\240\2\0\0\0\0\0\0\0\0\1\0\0\0"..., 32) = 32
gettimeofday({1090098072, 69435}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}], 3, 9) = 0
gettimeofday({1090098072, 106582}, NULL) = 0
gettimeofday({1090098072, 106663}, NULL) = 0
gettimeofday({1090098072, 106709}, NULL) = 0
gettimeofday({1090098072, 106836}, NULL) = 0
write(3, "\226\3\n\0\34\0\300\0029\0\300\2\0\6@\0\240\3 \0L\0\20"..., 40) = 40
ioctl(3, FIONREAD, [0]) = 0
poll(
---

--
Martin Schlemmer

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