| Summary: | kde-apps/spectacle-24.08.1 - Segmentation Fault Upon Finishing Recording | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Neko-san <gentoo.qxrin> |
| Component: | Current packages | Assignee: | Gentoo KDE team <kde> |
| Status: | UNCONFIRMED --- | ||
| Severity: | normal | CC: | gentoo.qxrin, toolchain |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| See Also: | https://bugs.gentoo.org/show_bug.cgi?id=923292 | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: |
backtrace.log
Backtrace |
||
Created attachment 903673 [details]
backtrace.log
Happy to apply any upstream fixes, but won't personally look into this unless reproduced with gcc/glibc. I can't compile Spectacle with GCC on my profile because it results in a ton of mangled symbols errors, so I can't verify if it happens on that side, just to clarify. Thread 76 (Thread 0x7bec3b4006c0 (LWP 26336) "PipeWireProduce"): #0 0x00007bf0a2b52ecd in end_ebml_master_crc32 (pb=pb@entry=0x7bebc803bc40, dyn_cp=dyn_cp@entry=0x7bebcafede90, mkv=mkv@entry=0x7bebcafede40, id=id@entry=524531317, length_size=length_size@entry=0, keep_buffer=keep_buffer@entry=0, add_seekentry=0) at src/libavformat/matroskaenc.c:786 #1 0x00007bf0a2b50846 in mkv_write_trailer (s=0x7bebcafedac0) at src/libavformat/matroskaenc.c:3137 #2 0x00007bf0a2b9cd57 in av_write_trailer (s=0x7bebcafedac0) at src/libavformat/mux.c:1315 #3 0x00007bf0a971875f in PipeWireRecordProduce::cleanup (this=0x5e5a8d45b8c0) at /var/tmp/portage/kde-plasma/kpipewire-6.1.5/work/kpipewire-6.1.5/src/pipewirerecord.cpp:201 #4 0x00007bf0a971b4fb in PipeWireProduce::destroy (this=0x5e5a8d45b8c0) at /var/tmp/portage/kde-plasma/kpipewire-6.1.5/work/kpipewire-6.1.5/src/pipewireproduce.cpp:190 #5 0x00007bf0a626e47c in QObject::event (this=0x5e5a8d45b8c0, e=0x7bec1d023eb0) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:1452 #6 0x00007bf0a7e6eea0 in QApplicationPrivate::notify_helper (this=0x5e5a8cf3bfc0, receiver=0x5e5a8d45b8c0, e=0x7bec1d023eb0) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:3287 #7 0x00007bf0a7e70820 in QApplication::notify (this=0x7ffeccc2e1d0, receiver=0x5e5a8d45b8c0, e=0x7bec1d023eb0) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:3238 #8 0x00007bf0a6314e4d in QCoreApplication::notifyInternal2 (receiver=0x5e5a8d45b8c0, event=0x7bec1d023eb0) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1142 #9 0x00007bf0a63163d2 in QCoreApplication::sendEvent (receiver=0x5e5a8d45b8c0, event=0x7bec1d023eb0) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1583 #10 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5e5a8d82ad90) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1940 #11 0x00007bf0a60cae98 in postEventSourceDispatch (s=0x7bebc8000f10) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventdispatcher_glib.cpp:244 #12 0x00007bf0a229a240 in g_main_dispatch (context=0x7bebc8000c60) at ../glib-2.78.6/glib/gmain.c:3476 #13 g_main_context_dispatch_unlocked (context=context@entry=0x7bebc8000c60) at ../glib-2.78.6/glib/gmain.c:4284 #14 0x00007bf0a229a63c in g_main_context_iterate_unlocked (context=context@entry=0x7bebc8000c60, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.78.6/glib/gmain.c:4349 #15 0x00007bf0a229a6dc in g_main_context_iteration (context=0x7bebc8000c60, may_block=1) at ../glib-2.78.6/glib/gmain.c:4414 #16 0x00007bf0a60b63e7 in QEventDispatcherGlib::processEvents (this=0x7bebc8001260, flags=...) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventdispatcher_glib.cpp:394 #17 0x00007bf0a63159a6 in QEventLoop::processEvents (this=0x7bec3b3f0a00, flags=...) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventloop.cpp:100 #18 QEventLoop::exec (this=0x7bec3b3f0a00, flags=...) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventloop.cpp:182 #19 0x00007bf0a623440b in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/thread/qthread.cpp:586 #20 0x00007bf0a61dfbda in QThreadPrivate::start(void*)::$_0::operator()() const (this=<optimized out>) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/thread/qthread_unix.cpp:326 #21 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::$_0>(QThreadPrivate::start(void*)::$_0&&) (t=<optimized out>) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/thread/qthread_unix.cpp:262 #22 QThreadPrivate::start (arg=0x5e5a8de6b680) at /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/src/corelib/thread/qthread_unix.cpp:285 #23 0x00007bf0a5bc7191 in start_thread (arg=<optimized out>) at pthread_create.c:447 #24 0x00007bf0a5c4660c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78 ... so it crashes in ffmpeg's end_ebml_master_crc32. > CFLAGS="-march=znver2 -pipe -O2 -mllvm=-polly -mllvm=-polly-ast-use-context -mllvm=-polly-vectorizer=stripmine -mllvm=-polly-invariant-load-hoisting -mllvm=-polly-run-inliner -mllvm=-polly-run-dce -fno-plt -ftrivial-auto-var-init=pattern -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security -fstack-clash-protection -fstack-protector-strong -fcf-protection -fPIC -ggdb3"
As I've advised before:
* several of these are default already for Clang via clang-common;
* please reduce the flags needed to reproduce failure (noting you'll need to rebuild at least direct deps with the same reduced flags)
> keep_buffer=keep_buffer@entry=0, add_seekentry=0) at src/libavformat/matroskaenc.c:786
What line is this for you? (What version of media-video/ffmpeg?)
ffmpeg 6.1.1-r8, to clarify; also, about the dependency rebuilding, I still sort of need to learn how to properly determine *every* direct dependency required for rebuilding (Is rebuilding *everything* on this page is not overdoing it, right?) https://packages.gentoo.org/packages/kde-apps/spectacle/dependencies Also, not reproducible for me with media-video/ffmpeg-6.1.2 and kde-apps/spectacle-24.08.1. Even if I reduce the flags to just "-march=znver2 -O2 -pipe -ggdb3" for both ffmpeg and Spectacle, I still get the same error in the backtrace. (I only need to rebuild ffmpeg and spectacle if ffmpeg is the cause, like you mentioned, right? Or should I be rebuilding more packages?) Created attachment 906729 [details]
Backtrace
Added a new backtrace with:
- "thread apply all bt full"
- "info locals"
- "disas"
Also "sort of" found what was causing the crash on the user-facing side:
The screen recording menu as a drop-down list option that lets you select which file type to save to, but for me the default choice was actually blank for some reason, and when I opened the drop-down the only valid option was mp4. Changing it to mp4 prevents the crash when attempting to stop a recording, but I find it odd that the default was blank to begin with and it just decided to save as (what I assume to be) a mkv file. :/
|
When attempting to end a recording using an LLVM18 (libc++) compiled Spectacle, the program segfaults before saving the recording and drops a fat core dump in the home folder. Reproducible: Always Steps to Reproduce: 1. Launch a game on Steam (using gamescope) 2. Launch Spectacle 3. Attempt to record the game >window< using Spectacle (it will ask you to click on the window) 4. When done, tab back to Spectacle and click to finish 5. Segfault Actual Results: Spectacle crashes Expected Results: Spectacle to not crash when ending a recording Portage 3.0.65 (python 3.12.6-final-0, default/linux/amd64/23.0/split-usr/llvm, gcc-13, glibc-2.39-r6, 6.10.9-tkg-eevdf-gentoo-llvm18-generic_v3 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-6.10.9-tkg-eevdf-gentoo-llvm18-generic_v3-x86_64-AMD_Ryzen_7_3700X_8-Core_Processor-with-glibc2.39 KiB Mem: 32765588 total, 9605960 free KiB Swap: 16777212 total, 14719484 free Timestamp of repository gentoo: Tue, 24 Sep 2024 20:48:53 +0000 Head commit of repository gentoo: dcfa235c0b66993ca502749a451a65403b4cd054 Timestamp of repository guru: Tue, 24 Sep 2024 12:19:22 +0000 Head commit of repository guru: 497a46602c06807015d10b9e7f42e57527d43a4d Timestamp of repository kde: Tue, 24 Sep 2024 06:49:24 +0000 Head commit of repository kde: 8428041c13d09ddc5814cece05fb1c08f6b9b21b Timestamp of repository pf4public: Tue, 24 Sep 2024 18:50:02 +0000 Head commit of repository pf4public: 5ede906f61ce674aeaffbc34c45fff685614c4a8 Timestamp of repository steam-overlay: Tue, 24 Sep 2024 12:19:15 +0000 Head commit of repository steam-overlay: 18c78592f03d886db5de79ad23ac1c34ddd72613 Head commit of repository waffle-builds: 411893ae555f010adef2fdf97193563064054136 Head commit of repository FireBurn: 0b17f5623980051627bb9ceecd501696ef665cd6 Head commit of repository bobwya: a8496a14aee3c337b0e547b97b546b08607242a8 Head commit of repository farmboy0: 2df3b12838fafc77468edff1ca308734f73e2f2a Head commit of repository kzd: 321a023a5cdde9042c65696975044b8cca812897 Head commit of repository librewolf: 57ad16f105af78a7b2bbd99b70777c17523e9fc3 Head commit of repository oxen-overlay: caa06ee33866f344b827f2bf7105839272cd7b3e Head commit of repository src_prepare-overlay: a3daac4e47cf763e9f52f1a30aa113acd8f13523 Head commit of repository tatsh-overlay: 8e1122ae05f9ae0378ca980ede8ba6bd2a0b3cb7 Head commit of repository tezeta: 7644636a57317ba864880f7f93a95d3e49ba9474 Head commit of repository thegreatmcpain: 8e48ac29508890f4fc1db8b02bd3dbe2152d97d4 Head commit of repository x0rzavi: e560dddb58c5baebc899623129a9db37f9a8da4b Head commit of repository xarblu-overlay: ea42b599a8c93f3eee3a4f47ada1e544b71beaa7 Timestamp of repository xwing: Mon, 23 Sep 2024 16:18:46 +0000 Head commit of repository xwing: c0ed9a037307ef23fc3674000d84817df4f54a75 sh lksh ld GNU ld (Gentoo 2.42 p3) 2.42.0 app-misc/pax-utils: 1.3.7::gentoo app-shells/bash: 5.2_p26-r6::gentoo dev-build/autoconf: 2.13-r8::gentoo, 2.71-r7::gentoo dev-build/automake: 1.16.5-r2::gentoo dev-build/cmake: 3.30.2::gentoo dev-build/libtool: 2.4.7-r4::gentoo dev-build/make: 4.4.1-r1::gentoo dev-build/meson: 1.5.2::gentoo dev-java/java-config: 2.3.4::gentoo dev-lang/perl: 5.40.0::gentoo dev-lang/python: 3.12.6_p2::gentoo dev-lang/rust: 1.80.1::gentoo sys-apps/baselayout: 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CTARGET, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, SIZE, YFLAGS ================================================================= Package Settings ================================================================= kde-apps/spectacle-24.08.1::gentoo was built with the following: USE="handbook share -debug -test" ABI_X86="(64)"