[chuck-dev] segfaults galore

Ge Wang gewang at CS.Princeton.EDU
Tue Jul 27 18:57:08 EDT 2004


I think this is related to the earlier gain paramater crash.
it suggested there was a compiler gcc bug in the -O3 or
that chuck may be trashing memory.

try:

 > take out the -O3 flag in the make file
 > make clean
 > make linux-alsa

please also post your gcc version (gcc --version).

Best,
Ge!

On Jul 27, 2004, at 5:32 AM, smoerk wrote:

> the same here
>
> # ../chuck --srate44100 --loop
> [chuck](VM): sporking incoming shred: 1...
> Segmentation fault
>
> after ../chuck + moe.ck
>
> i'm on linux 2.6.7 with alsa
>
> did anyone test it with 2.4 kernel?
>
> (i praised chuck too early... :-))
>
> Niklas Werner wrote:
>
>> On Tue, 27 Jul 2004 12:31, Ge Wang wrote:
>>> Hi Niklas!
>>>
>>> Hmm... I tried this on os x and couldn't seg fault.
>>> Did you do a clean build?  does it happen consistently?
>> yes and yes. Any other Linux users out there?
>>> it is suspicious that GDB points to getconcurrency()...
>>> shreds do not use pthreads (obviously, ha).
>> Hmm, correct, but those first pthread things are more likely 
>> alsa/sound-related, and they are only SIG32, (other programs run in 
>> gdb receive the same signals, but run fine afterwards)
>>> it could be a synchronization bug in the server code
>>> and the VM.
>> so? What can we do?
>
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