Bug#945814: audacity: various segfaults of audacity on startup
Dear Bernhard, thanks for the efforts. Best regards, Tjeerd Pinkert On 1/27/20 15:26, Bernhard Übelacker wrote: > Control: reassign -1 zynaddsubfx-dssi 3.0.3-1 > Control: affects -1 + audacity > > > Hello Tjeerd, > >> Thanks for coming back, I'm not in a hurry... >> >> The problem is that I can not trigger specific bugs (they seem to happen >> somewhat random). So a made some more valgrinds: valgrind.dat > > Because the error des not manifest each run in the same location > this might be thread related e.g. two threads are working on the > same memory. > > >> I had zynaddsubfx installed to try it out and see if I like it, but did >> not uninstall after the tries (sufficient diskspace luxury). I could >> uninstall zynadd, zynsaddsubfx and zynaddsubfx-dssi, the data package is >> depended on by the lmms-common package. > > I tried to install some more lv2 plugins and bridges and after enabling > all in audacity I got the shared library loaded libzynaddsubfx_dssi.so > by just starting audacity - but still cannot reproduce a crash. > (Details attached.) > > >> And audacity runs without crashing (thanks for the hint) but still gives >> a lot of debug output: audacity_debug.dat > > Most of the remaining output seems gui related - seems to be harmless. > > >> So at least the the source of all evil is now clear... and the bug >> "resolved". Do you have contact with the zynaddsubfx devs and file a bug >> there? Devs amongst each other might talk clearer? Otherwise I'm happy >> to do it. > > It might not be that clear - depending on e.g. libzynaddsubfx_dssi.so > is intended to work multi threaded ... > > When I did run audacity in my test environment I get some > "Possible data race" with valgrind's helgrind tool. > > At least it might be related to some plugins, either direct or > via some bridges, therefore I hope it is ok to reassign. > > Bringing the issue upstream might also not be a bad idea. > > Kind regards, > Bernhard signature.asc Description: OpenPGP digital signature
Bug#945814: audacity: various segfaults of audacity on startup
Control: reassign -1 zynaddsubfx-dssi 3.0.3-1 Control: affects -1 + audacity Hello Tjeerd, > Thanks for coming back, I'm not in a hurry... > > The problem is that I can not trigger specific bugs (they seem to happen > somewhat random). So a made some more valgrinds: valgrind.dat Because the error des not manifest each run in the same location this might be thread related e.g. two threads are working on the same memory. > I had zynaddsubfx installed to try it out and see if I like it, but did > not uninstall after the tries (sufficient diskspace luxury). I could > uninstall zynadd, zynsaddsubfx and zynaddsubfx-dssi, the data package is > depended on by the lmms-common package. I tried to install some more lv2 plugins and bridges and after enabling all in audacity I got the shared library loaded libzynaddsubfx_dssi.so by just starting audacity - but still cannot reproduce a crash. (Details attached.) > And audacity runs without crashing (thanks for the hint) but still gives > a lot of debug output: audacity_debug.dat Most of the remaining output seems gui related - seems to be harmless. > So at least the the source of all evil is now clear... and the bug > "resolved". Do you have contact with the zynaddsubfx devs and file a bug > there? Devs amongst each other might talk clearer? Otherwise I'm happy > to do it. It might not be that clear - depending on e.g. libzynaddsubfx_dssi.so is intended to work multi threaded ... When I did run audacity in my test environment I get some "Possible data race" with valgrind's helgrind tool. At least it might be related to some plugins, either direct or via some bridges, therefore I hope it is ok to reassign. Bringing the issue upstream might also not be a bad idea. Kind regards, Bernhard # Buster/stable amd64 qemu VM 2020-01-27 apt update apt dist-upgrade apt install systemd-coredump xserver-xorg sddm openbox xterm mc strace valgrind gdb audacity jackd2 lmms zynadd zynaddsubfx-dssi liblv2dynparamhost1-1 naspro-bridges audacity-dbgsym libstdc++6-8-dbg zynaddsubfx-dssi-dbgsym naspro-bridges-dbgsym libjack-jackd2-0-dbgsym libwxbase3.0-0v5-dbgsym libportaudio2-dbgsym libnabrit-dbg liblilv-0-0-dbgsym reboot # dpkg -l | grep -i -E "audacity|jack|zynaddsubfx|lmms" ii audacity 2.2.2-1+b1 amd64 fast, cross-platform audio editor ii audacity-data 2.2.2-1 all fast, cross-platform audio editor (data) ii audacity-dbgsym2.2.2-1+b1 amd64 debug symbols for audacity ii jackd 5+nmu1 all JACK Audio Connection Kit (default server package) ii jackd2 1.9.12~dfsg-2amd64 JACK Audio Connection Kit (server and example clients) ii jackd2-firewire1.9.12~dfsg-2amd64 JACK Audio Connection Kit (FFADO and FreeBoB backends) ii libjack-jackd2-0:amd64 1.9.12~dfsg-2amd64 JACK Audio Connection Kit (libraries) ii libjack-jackd2-0-dbgsym:amd64 1.9.12~dfsg-2amd64 debug symbols for libjack-jackd2-0 ii lmms 1.1.3-8.1amd64 Linux Multimedia Studio ii lmms-common1.1.3-8.1all Linux Multimedia Studio - common files ii qjackctl 0.5.0-1 amd64 User interface for controlling the JACK sound server ii zynadd 1+git.20100609+dfsg0-4 amd64 ZynAddSubFX engines converted to LV2 plugin format ii zynaddsubfx3.0.3-1 amd64 Realtime software synthesizer for Linux ii zynaddsubfx-data 3.0.3-1 all Realtime software synthesizer for Linux (data) ii zynaddsubfx-dssi 3.0.3-1 amd64 dssi plugin of zynaddsubfx ii zynaddsubfx-dssi-dbgsym3.0.3-1 amd64 debug symbols for zynaddsubfx-dssi export LANG=C export DISPLAY=:0 qjackctl # Start audacity # Select all new plugins and enable # Close gdb -q set width 0 set pagination off set breakpoint pending on file /usr/bin/audacity break _ZN3zyn10MiddleWare4tickEv run break _ZN3zyn4Bank9addtobankEiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ cont break free cont generate /home/benutzer/core (gdb) bt #0 __GI___libc_free (mem=0x5652b0c0) at malloc.c:3083 #1 0x7fffe9511f3d in zyn::Bank::addtobank(int, std::__cxx11::basic_string, std::allocator >, std::__cxx11::basic_string, std::allocator >) () from /usr/lib/dssi/libzynaddsubfx_dssi.so #2 0x7fffe95138a1 in zyn::Bank::loadbank(std::__cxx11::basic_string, std::allocator >) () from /usr/lib/dssi/libzynaddsubfx_dssi.so #3 0x7fffe955b29c in ?? () from
Bug#945814: Fwd: Bug#945814: audacity: various segfaults of audacity on startup
Hello Tjeerd, sorry for the delay. I would have expected more output from catchsegv. I guess the first valgrind run would have been better placed in an attachement too. The file audacity_coredumps.log points to libzynaddsubfx_dssi.so that belongs to package zynaddsubfx-dssi. That seems to be involved in the crash at least. I guess this package is installed on purpose on your system? If not uninstalling could be a workaround. As I just tried to help triaging this issue and being not involved in packaging I have not enough knowledge how to setup a system to get this file loaded by audacity. Therefore probably you could add what needs to be done from a fresh installed system to reach a setup similar to yours. And please add the output of following: dpkg -l | grep -i -E "audacity|jack|zynaddsubfx" Kind regards, Bernhard Backtrace from audacity_coredumps.log what it should look like with debug symbols installed: Stack trace of thread 11485: #0 0x7f94d6a507bb __GI_raise (libc.so.6) #1 0x7f94d6a3b535 __GI_abort (libc.so.6) #2 0x7f94d6a92508 __libc_message (libc.so.6) #3 0x7f94d6a98c1a malloc_printerr (libc.so.6) #4 0x7f94d6a9a5d7 _int_free (libc.so.6) #5 0x7f94cacf6f3d in __gnu_cxx::new_allocator::deallocate(char*, unsigned long) at /usr/include/c++/7/ext/new_allocator.h:125 in zyn::Bank::addtobank(int, std::__cxx11::basic_string, std::allocator >, std::__cxx11::basic_string, std::allocator >) #6 0x7f94cacf88a1 in zyn::Bank::loadbank(std::__cxx11::basic_string, std::allocator >) at ./src/Misc/Bank.cpp:267 #7 0x7f94cad4029c in zyn::MiddleWareImpl::loadPendingBank(int, zyn::Bank&) at ./src/Misc/MiddleWare.cpp:477 #8 0x7f94cade20ea in std::function::operator()(char const*, rtosc::RtData&) const at /usr/include/c++/7/bits/std_function.h:706 in rtosc::Ports::dispatch(char const*, rtosc::RtData&, bool) #9 0x7f94cad42959 in zyn::MiddleWareImpl::bToUhandle(char const*) at ./src/Misc/MiddleWare.cpp:1905 #10 0x7f94cad42cbf in zyn::MiddleWareImpl::tick() at ./src/Misc/MiddleWare.cpp:698 #11 0x7f94cacf43fd in DSSIaudiooutputoperator() at ./src/Output/DSSIaudiooutput.cpp:635 #12 0x7f94d6e32b2f n/a (libstdc++.so.6) #13 0x7f94d6f0efa3 in start_thread (arg=) at pthread_create.c:486 #14 0x7f94d6b124cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 https://sources.debian.org/src/zynaddsubfx/3.0.3-1/src/Misc/Bank.cpp/#L506 https://sources.debian.org/src/zynaddsubfx/3.0.3-1/src/Misc/Bank.cpp/#L267
Bug#945814: Fwd: Bug#945814: audacity: various segfaults of audacity on startup
Sorry, forget the right email. Forwarded Message Betreff: Re: Bug#945814: audacity: various segfaults of audacity on startup Datum: Tue, 14 Jan 2020 11:46:06 +0100 Von: Bernhard Übelacker An: 945...@bugs.debian.org Hello Tjeerd, If this issue still exists on your system, you might try to rename $HOME/.audacity-data to test if it depends on some settings stored there. If it still crashes then you might start it by following and forward the output: $ catchsegv audacity Better would be if you could install the packages: systemd-coredump gdb valgrind audacity-dbgsym The last one is in a different repository described here [1]. Then some more information should appear after a crash in 'journalctl --no-pager'. Also running audacity by following could give some pointer: $ valgrind audacity Kind regards, Bernhard [1] https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols
Bug#945814: audacity: various segfaults of audacity on startup
Hello Tjeerd, If this issue still exists on your system, you might try to rename $HOME/.audacity-data to test if it depends on some settings stored there. If it still crashes then you might start it by following and forward the output: $ catchsegv audacity Better would be if you could install the packages: systemd-coredump gdb valgrind audacity-dbgsym The last one is in a different repository described here [1]. Then some more information should appear after a crash in 'journalctl --no-pager'. Also running audacity by following could give some pointer: $ valgrind audacity Kind regards, Bernhard [1] https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols
Bug#945814: audacity: various segfaults of audacity on startup
Package: audacity Version: 2.2.2-1+b1 Severity: grave Tags: upstream Justification: renders package unusable Dear Maintainer, thanks for creating a normally very stable and properly functioning system. * What led up to the situation? I tried to start the program audacity $ audacity * What exactly did you do (or not do) that was effective (or ineffective)? Nothing unusual * What was the outcome of this action? various responces follow: :~$ audacity lo server running on 15889 ../src/common/debugrpt.cpp(453): assert "IsOk()" failed in AddContext(): use IsOk() first [in thread 7f6f3c5f1700] Segmentation fault :~$ audacity -v lo server running on 15901 munmap_chunk(): invalid pointer Aborted :~$ audacity lo server running on 15907 Warning: failed to load part<>! Segmentation fault :~$ audacity lo server running on 15911 ../src/common/debugrpt.cpp(453): assert "IsOk()" failed in AddContext(): use IsOk() first [in thread 7f76eb92d700] Segmentation fault :~$ audacity lo server running on 15918 Segmentation fault :~$ audacity lo server running on 15923 Segmentation fault :~$ audacity --version lo server running on 15942 double free or corruption (fasttop) Aborted :~$ audacity lo server running on 15947 malloc_consolidate(): invalid chunk size Aborted :~$ audacity lo server running on 15950 ../src/common/debugrpt.cpp(453): assert "IsOk()" failed in AddContext(): use IsOk() first [in thread 7f70fa1a0700] Segmentation fault :~$ audacity lo server running on 15953 ../src/common/debugrpt.cpp(453): assert "IsOk()" failed in AddContext(): use IsOk() first [in thread 7f0f2862d700] Segmentation fault * What outcome did you expect instead? I expected audacity to start I was not able to resolve the problem. I hope the problem may be solved... Best regards, Tjeerd Pinkert -- System Information: Debian Release: 10.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-6-amd64 (SMP w/8 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages audacity depends on: ii audacity-data 2.2.2-1 ii libasound2 1.1.8-1 ii libavcodec-extra58 [libavcodec58] 7:4.1.4-1~deb10u1 ii libavformat58 7:4.1.4-1~deb10u1 ii libavutil567:4.1.4-1~deb10u1 ii libc6 2.28-10 ii libexpat1 2.2.6-2+deb10u1 ii libflac++6v5 1.3.2-3 ii libflac8 1.3.2-3 ii libgcc11:8.3.0-6 ii libgdk-pixbuf2.0-0 2.38.1+dfsg-1 ii libglib2.0-0 2.58.3-2+deb10u2 ii libgtk2.0-02.24.32-3 ii libid3tag0 0.15.1b-14 ii liblilv-0-00.24.2~dfsg0-2 ii libmad00.15.1b-10 ii libmp3lame03.100-2+b1 ii libogg01.3.2-1+b1 ii libportaudio2 19.6.0-1 ii libportsmf00.1~svn20101010-5 ii libsndfile11.0.28-6 ii libsoundtouch1 2.1.2+ds1-1 ii libsoxr0 0.1.2-3 ii libstdc++6 8.3.0-6 ii libsuil-0-00.10.0~dfsg0-1 ii libtwolame00.3.13-4 ii libvamp-hostsdk3v5 2.7.1~repack0-1 ii libvorbis0a1.3.6-2 ii libvorbisenc2 1.3.6-2 ii libvorbisfile3 1.3.6-2 ii libwxbase3.0-0v5 3.0.4+dfsg-8 ii libwxgtk3.0-0v53.0.4+dfsg-8 audacity recommends no packages. Versions of packages audacity suggests: ii amb-plugins [ladspa-plugin] 0.8.1-7 ii ambdec [ladspa-plugin]0.7.1-1 ii autotalent [ladspa-plugin]0.2-5 ii blepvco [ladspa-plugin] 0.1.0-3+b1 ii blop [ladspa-plugin] 0.2.8-6.1 ii bs2b-ladspa [ladspa-plugin] 0.9.1-3 ii caps [ladspa-plugin] 0.9.26-1 ii cmt [ladspa-plugin] 1.16-2 ii csladspa [ladspa-plugin] 1:6.11.1-1 ii fil-plugins [ladspa-plugin] 0.3.0-6 ii guitarix-ladspa [ladspa-plugin] 0.36.1-1+b1 ii invada-studio-plugins-ladspa [ladspa-plugin] 0.3.1-5 ii ladspa-sdk [ladspa-plugin]1.13-3 ii mcp-plugins [ladspa-plugin] 0.4.0-6 ii omins [ladspa-plugin] 0.2.0-7.1 ii rev-plugins
