I've just checked if the problem of a close on /dev/dsp never finishing
(with a Gravis UltraSound) still exists in 2.1.126, which already contains
the updates to drivers/sound/dmabuf.c
And yes, it still does.
When I do
echo hello > /dev/dsp
it never ends. However, the bug is different now. First, it only happens
on files that are not more than 2048 bytes in size, and second, if this
condition is true, nothing gets played, and it just waits ...
A signal sent to the process finishes it.
That's all for now. I'll look deeper into it to see if it really happens
on close() or on write().
Vojtech Pavlik
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