On Fri, 11 Jul 2003, Carlo Wood wrote:
>> Total number of fragments allocated for buffering: 64
> Well, you have 64 fragments - I only 2.
Yup, that's because I'm using the snd-ens1371 driver (maximum interrupt
frequency ~= period size, is driver/card dependent).
>> #fragments, #bytes: 13, 13472
>> Read 1024 bytes.
> You didn't really test it when you stop here.
> 13472 < 64 * 1024.
I increased the size of the loop and eventually managed to reproduce the
same behaviour you are seeing. It happens somewhere around 100-200th
iteration. Hmm, looks strange. I manage to workaround this by change the
test code to:
--cut--
printf("Read %d bytes.\n", rlen);
}
else {
static struct timespec naptime = { 0, 100000000 };
nanosleep(&naptime, 0);
}
--cut--
... hmm, anyways, it's 3:30am already here, so I'll have to call it a day
now. Good luck in bug hunting, hopefully you can find out the cause.
> You need to wait till you get an overrun (xrun?).
Yups, xruns is a common (ALSA) term for underruns and overruns.
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