Subject: Re: [ecasound] A very weird bug
From: S. Massy (theanaloguekid@tak.net.dhis.org)
Date: Fri Dec 15 2000 - 20:21:32 EET
On Fri, 15 Dec 2000, Jeremy Hall wrote:
> hmm, have you built an ecasound_deb versions? sounds like an assert needs
> to be checked.
Well, well, well... I built a debug version but the same bug could not
be triggered. I spent a little while messing in gdb though and, though the
exact same behaviour couldn't be reproduced, I was able to get quite a few
segfaults. I wouldn't bet my life on it but it seems to be in relation
with memory management. all of the segfaults occurred either in malloc(),
free(), or resample_with_memory(): what do you make of this?
>
> _J
>
> In the new year, S. Massy wrote:
> > This is certainly one of the weirdest things I have seen, I'll let the
> > commands and response speak:
> >
> > # First I run a command to incredibly slow down a file, with interactive mode enabled.
> > $ ecasound -i:/mnt/tmp/file.wav -o:/dev/dsp -ei:10 -c
> > # Ecasound sefgaults when I issue the start command.
> > # So I want to run strace and, to make it easier, I run it in non-interactive mode.
> > $ strace ecasound -i:/mnt/tmp/file.wav -o:/dev/dsp -ei:10
> > # Well it works just fine!
> > # So I think, "How weird!" to myself and decide to run in interactive mode with debugging info enabled.
> > $ ecasound -d:255 -i:/mnt/tmp/file.wav -o:/dev/dsp -ei:10 -c
> > # It works too!
> > # I checked to make sure that I wasn't crazed and ran it as I had done first, and well, it segfaulted again!
> >
> > note: I repeated the sequence and this behaviour is constant...
> >
> > Any idea?
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> >
>
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