> I recently noticed that xawtv sometimes tries to mmap() buffers for
> display. If you resize the video window, it apparently re-requests and
> re-mmap()s the buffers,
Done in grabdisplay mode, for obvious reasons ...
> however, it does this without munmap()ping the
> old buffers. My drivers gives errors 'buffers already allocated' errors.
Huh? Really? I should have noticed this, as bttv + saa7134 should
return -EBUSY on REQBUFS if there are still buffers mapped ...
> Is this indeed true for xawtv-3.78? If so, would a patch to fix this be
> appreciated (i.e., is this the intended behaviour or would you rather,
> as I imagine it, see the old buffers being munmap()'ed before
> requesting/mmap()ing the new buffers?)?
xawtv should unmap them first of course.
Gerd
--
You can't please everybody. And usually if you _try_ to please
everybody, the end result is one big mess.
-- Linus Torvalds, 2002-04-20
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