Re: [ecasound] Bug report: segfault, etd: JACK support is to blame?

From: S. Massy <lists@email-addr-hidden>
Date: Sun May 13 2012 - 00:12:27 EEST

On Thu, May 10, 2012 at 03:45:25PM -0400, S. Massy wrote:
> It seems, however, that aadding many such ops in a short period of time
> causes ecasound to segfault. Here is the backtrace:
> #0 0x0000000000566822 in SAMPLE_ITERATOR_CHANNEL::begin (this=0x7fffd8f60358,
> channel=0) at samplebuffer_iterators.cpp:68
> #1 0x0000000000519f0c in EFFECT_DELAY::process (this=0x7fffd8f60330)
> at audiofx_timebased.cpp:209
> #2 0x00000000004bebde in CHAIN::process (this=0x7fffd8002e30)
> at eca-chain.cpp:825
> #3 0x000000000056082c in ECA_ENGINE::process_chains (this=0x7fffd8012c80)
> at eca-engine.cpp:1699
> #4 0x00000000005653c2 in ECA_ENGINE::engine_iteration (this=0x7fffd8012c80)
> at eca-engine.cpp:688
> #5 0x000000000053a5c4 in eca_jack_process_engine_iteration (nframes=128,
> arg=0x7fffd800cc40) at audioio_jack_manager.cpp:457
> #6 0x000000000053b609 in eca_jack_process_timebase_slave (arg=0x7fffd800cc40,
> nframes=128) at audioio_jack_manager.cpp:565
> #7 eca_jack_process_callback (arg=0x7fffd800cc40, nframes=128)
> at audioio_jack_manager.cpp:403
> #8 eca_jack_process_callback (nframes=128, arg=0x7fffd800cc40)
> at audioio_jack_manager.cpp:362
This trace caused me to go back and try the same operations without
JACK (only alsa). This bug simply does *not* occur without the JACK
factor. I repeated the test several times.


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Received on Sun May 13 00:15:04 2012

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