Segfault in MixSomeSources at openal-soft-1.12.854/Alc/ALu.c:1033

[Moritz Naumann]

While running a development revision of the MegaGlest game (http://megaglest.org), I have run into this segmentation fault:

1033 /build/buildd/openal-soft-1.12.854/Alc/ALu.c: File or directory not found.
Core was generated by `./glest.bin'.
Program terminated with signal 8, Arithmetic exception.
#0 MixSomeSources (ALContext=0x2bd41c0, DryBuffer=<value optimised out>, SamplesToDo=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/ALu.c:1033
 in /build/buildd/openal-soft-1.12.854/Alc/ALu.c
#0 MixSomeSources (ALContext=0x2bd41c0, DryBuffer=<value optimised out>, SamplesToDo=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/ALu.c:1033
#1 0x00007f9e0769b612 in aluMixData (device=0x7f9e091c8010, buffer=0x7f9df5536040, size=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/ALu.c:1373
#2 0x00007f9e076ac2b0 in stream_write_callback (stream=0x2bd2840, len=7104, pdata=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/pulseaudio.c:437
#3 0x00007f9e04683367 in pa_command_request (pd=<value optimised out>, command=<value optimised out>, tag=<value optimised out>, t=0x1d5a2460, userdata=0x2bcdc00) at pulse/stream.c:749
#4 0x00007f9e010196f6 in pa_pdispatch_run (pd=0x2bd0c60, packet=<value optimised out>, creds=<value optimised out>, userdata=0x2bcdc00) at pulsecore/pdispatch.c:331
#5 0x00007f9e0466aafd in pstream_packet_callback (p=<value optimised out>, packet=0x1fa23820, creds=0x2bd0f60, userdata=0x2bcdc00) at pulse/context.c:346
#6 0x00007f9e0101d564 in do_read (p=0x2bd0e10) at pulsecore/pstream.c:816
#7 do_something (p=0x2bd0e10) at pulsecore/pstream.c:184
#8 0x00007f9e046783d3 in dispatch_pollfds (m=0x2b4d0b0) at pulse/mainloop.c:688
#9 pa_mainloop_dispatch (m=0x2b4d0b0) at pulse/mainloop.c:933
#10 0x00007f9e04678808 in pa_mainloop_iterate (m=0x2b4d0b0, block=<value optimised out>, retval=0x0) at pulse/mainloop.c:964
#11 0x00007f9e046788b0 in pa_mainloop_run (m=0x2b4d0b0, retval=0x0) at pulse/mainloop.c:979
#12 0x00007f9e0468720b in thread (userdata=0x2b4aa30) at pulse/thread-mainloop.c:94
#13 0x00007f9e0102afb8 in internal_thread_func (userdata=0x2b4ab10) at pulsecore/thread-posix.c:83
#14 0x00007f9e08cf3971 in start_thread () from /lib/libpthread.so.0
#15 0x00007f9e04d8a92d in clone () from /lib/libc.so.6
#16 0x0000000000000000 in ?? ()

I assume this is reproducible (I'm testing this now, takes a while).

$ lsb_release -rd
Description: Ubuntu 10.10
Release: 10.10

$ LC_ALL=C apt-cache policy libopenal1
libopenal1:
  Installed: 1:1.12.854-2
  Candidate: 1:1.12.854-2
  Version table:
 *** 1:1.12.854-2 0
        500 http://de.archive.ubuntu.com/ubuntu/ maverick/universe amd64 Packages
        100 /var/lib/dpkg/status

[Moritz Naumann (mnaumann)]

Slightly different this time but likely the same bug (?):

Core was generated by `./glest.bin'.
Program terminated with signal 11, Segmentation fault.

#0 0x00007fe2cab21688 in MixSomeSources (ALContext=0x16ba270, DryBuffer=<value optimised out>, SamplesToDo=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/ALu.c:944
 in /build/buildd/openal-soft-1.12.854/Alc/ALu.c
#0 0x00007fe2cab21688 in MixSomeSources (ALContext=0x16ba270, DryBuffer=<value optimised out>, SamplesToDo=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/ALu.c:944
#1 0x00007fe2cab30612 in aluMixData (device=0x7fe2cc65d010, buffer=0x7fe2b8a4b040, size=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/ALu.c:1373
#2 0x00007fe2cab412b0 in stream_write_callback (stream=0x16b88f0, len=14144, pdata=<value optimised out>) at /build/buildd/openal-soft-1.12.854/Alc/pulseaudio.c:437
#3 0x00007fe2c7b18367 in pa_command_request (pd=<value optimised out>, command=<value optimised out>, tag=<value optimised out>, t=0x7fe29db1f480, userdata=0x16b3cb0) at pulse/stream.c:749
#4 0x00007fe2c44ae6f6 in pa_pdispatch_run (pd=0x16b6d10, packet=<value optimised out>, creds=<value optimised out>, userdata=0x16b3cb0) at pulsecore/pdispatch.c:331
#5 0x00007fe2c7affafd in pstream_packet_callback (p=<value optimised out>, packet=0x7fe2993b3260, creds=0x16b7010, userdata=0x16b3cb0) at pulse/context.c:346
#6 0x00007fe2c44b2564 in do_read (p=0x16b6ec0) at pulsecore/pstream.c:816
#7 do_something (p=0x16b6ec0) at pulsecore/pstream.c:184
#8 0x00007fe2c7b0d3d3 in dispatch_pollfds (m=0x1633160) at pulse/mainloop.c:688
#9 pa_mainloop_dispatch (m=0x1633160) at pulse/mainloop.c:933
#10 0x00007fe2c7b0d808 in pa_mainloop_iterate (m=0x1633160, block=<value optimised out>, retval=0x0) at pulse/mainloop.c:964
#11 0x00007fe2c7b0d8b0 in pa_mainloop_run (m=0x1633160, retval=0x0) at pulse/mainloop.c:979
#12 0x00007fe2c7b1c20b in thread (userdata=0x1630ae0) at pulse/thread-mainloop.c:94
#13 0x00007fe2c44bffb8 in internal_thread_func (userdata=0x1630bc0) at pulsecore/thread-posix.c:83
#14 0x00007fe2cc188971 in start_thread () from /lib/libpthread.so.0
#15 0x00007fe2c821f92d in clone () from /lib/libc.so.6
#16 0x0000000000000000 in ?? ()

[Bret Curtis (psi29a)]

Have you tried lately, we're now so many releases further and according to OpenAL-Soft's developers, that part of the code as been re-worked.

[Bret Curtis (psi29a)]

I personally cannot reproduce this and I'm using PA (listening to music in the background) and tried openarena without issues.

[Moritz Naumann (mnaumann)]

I'll respond in 3.5 years, please keep the bug open!

[Bret Curtis (psi29a)]

No point in keeping it open if it no longer a problem. ;)

Are you still getting this issue, even with 1.14?

[Bret Curtis (psi29a)]

This should be fixed, if this isn't the case, please re-open the bug.