Re: [alsa-devel] [regression] 2.6.25-rc4 snd-es18xx broken on Alpha

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On 25-03-08 02:22, Michael Cree wrote:

should do it. Here's a file Bob passed me as a problematic one. 8-bit, 11025, mono:
http://members.home.nl/rene.herman/asskickd.wav
Right, got that.  On the PWS600au it shows the same problems that Bob 
describes!  When I play it with aplay (through the es1887) I get the 
last "pal" repeated at the end.  When I play it with sox (also through 
the es1887) I get the words "current event" repeated at the end.
Playing through the CM8738 also repeats the words "current event" at the 
end when playing with sox.  But using aplay through the CM8738 only 
results in silence and aplay hangs.  A ctrl-c successfully breaks it.
Lovely, so different problem between you and Bob. When you (either of you) 
have some time for it again, could you try:
$ sox asskickd.wav -w -t alsa hw
$ sox asskickd.wav -w -r 44100 -t alsa hw
$ sox asskickd.wav -w -r 44100 -c 2 -t alsa hw

and report if things start working? First transforms into 16-bit, second 16-bit and 44100 rate, third 16-bit, 44100 rate, stereo.
I suspect you are right - the symptoms I have observed (complete system crashes) are separate from what Bob observes. One question I have is what is different about Bob's set up that enables the sound to work with mmap?
Not a clue. Takashi -- is it possible that Bob wasn't using mmap to being 
with if he didn't do anything specific to not do so?
And perhaps you guys have firmware settable options that touch that area of 
coherent DMA? Maybe even a specific chipset bug on his machine? No idea how 
different/similar your machines are...
On the XP1000 (which has an unmodified kernel 2.6.24.3) I managed to play the sound file once with aplay through the es1887 (and it repeated "pal" at the end). Then I tried using sox and complete silence resulted. No, it's just playing back at the wrong rate - everything is sounding slow and extremely flat - the silence is just the artefact of a little bit of silence at the start of the file being played at far too a slow sample rate. Even other client programs are affected - mocp is playing back music at a horrendously slow sample rate. Yuk. Hopefully a rmmod es1887 might fix that - but I can't test it to I send this message and shut down X.
Anyway I really must start marking that pile of assignments I told the 
students that I would have done by tomorrow.  Further testing will have 
to wait to later this week.
No rush. Thanks for the current amount of testing already.

Rene.
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