Hi,

this sounds very much like https://lists.iem.at/hyperkitty/list/pd-dev@lists.iem.at/thread/HEUGAEWO362BTGYTHZAH7KH3QQNL4RHN/

It should already be fixed on develop with https://github.com/pure-data/pure-data/pull/2433/commits/6710a3441ff5ec73efef84dc2c65bbf9ecaf2c76.

Can you verify?

Christof

Hello,

Using Debian bookworm backport puredata and pipewire-audio and pipewire-jack backports, it crashes with 16 channels, but not with 15 channel.

To narrow down the problem, before bug issue it, anybody the same or only system specific ?

Here the debug output:

Here the gdb output:

 

$ pd -version
Pd-0.55.1 ("") compiled for Debian (0.55.1+ds-2~bpo12+1) on 2024/09/22 at 20:24:41 UTC

$ gdb pd
...

(gdb) run -jack -channels 16
Starting program: /usr/bin/pd -jack -channels 16

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Detaching after fork from child process 55024]
[Detaching after fork from child process 55027]
[New Thread 0x7ffff74a56c0 (LWP 55028)]
[Thread 0x7ffff74a56c0 (LWP 55028) exited]
[New Thread 0x7ffff74a56c0 (LWP 55029)]
[New Thread 0x7ffff6ca46c0 (LWP 55030)]
[New Thread 0x7ffff639f6c0 (LWP 55031)]

double free or corruption (out)

 

Thread 5 "data-loop.0" received signal SIGABRT, Aborted.
[Switching to Thread 0x7ffff639f6c0 (LWP 55031)]

 0x00007ffff7be3e3c in ?? () from /lib/x86_64-linux-gnu/libc.so.6 
(gdb) watchdog: signaling pd...
watchdog: signaling pd...
watchdog: signaling pd...
bt
#0  0x00007ffff7be3e3c in ?? () from /lib/x86_64-linux-gnu/libc.so.6 
#1  0x00007ffff7b94fb2 in raise () from /lib/x86_64-linux-gnu/libc.so.6 
#2  0x00007ffff7b7f472 in abort () from /lib/x86_64-linux-gnu/libc.so.6 
#3  0x00007ffff7bd8430 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 
#4  0x00007ffff7bed7ba in ?? () from /lib/x86_64-linux-gnu/libc.so.6 
#5  0x00007ffff7bef820 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 
#6  0x00007ffff7bf1e9f in free () from /lib/x86_64-linux-gnu/libc.so.6 
#7  0x000055555567ec3a in ?? ()
#8  0x00007ffff7d952c7 in ?? () from /usr/lib/x86_64-linux-gnu/pipewire-0.3/jack/libjack.so.0 
#9  0x00007ffff7faa44e in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so 
#10 0x00007ffff7a971b0 in ?? () from /lib/x86_64-linux-gnu/libpipewire-0.3.so.0 
#11 0x00007ffff7be2144 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 
#12 0x00007ffff7c627dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6 
(gdb) watchdog: signaling pd...
watchdog: signaling pd...
...

kernel: 6.1.0-26-amd64


mfg

  winfried

--

- ao.Univ.Prof. DI Winfried Ritsch

- ritsch@iem.at - http://iem.at/ritsch

- Institut fuer Elektronische Musik und Akustik,  University of Music and

Dramatic Art Graz

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