https://bugs.kde.org/show_bug.cgi?id=462596
--- Comment #5 from Pascal Niklaus <pascal+...@niklaus.org> --- (In reply to erjiang from comment #4) > Thanks for the very helpful backtrace. Looks like something weird is > happening when the MLT consumer is stopped when the clip/project monitor is > closed during application exit. I'm guessing this hang will never happen if > you close Kdenlive when the project is empty? It did also with the empty project. > Is there anything different about the desktop environments, GPU drivers, or > GPU driver versions between your two computers? Not that I would know of. The one with the problem just is an older, slower machine. > There were some bugs related to MLT multiprocessing that were fixed in > 22.12. If you can still reproduce this problem with Kdenlive 22.12, can you > try also getting a backtrace with additional debugging symbols? > > You should be able to do something like: > > $ export DEBUGINFOD_URLS="https://debuginfod.ubuntu.com"; > $ gdb path/to/kdenlive > > It should ask you "Enable debuginfod for this session?" which should > additionally add symbols to your backtrace for the libraries you installed > via apt. (Instructions from: > https://ubuntu.com/server/docs/service-debuginfod ) I just did, and it seems that kdenlive still sometimes hangs when exiting. Just now, for example, I got this output: (gdb) run Starting program: /usr/local/bin/kdenlive [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffff01fd640 (LWP 27603)] [New Thread 0x7fffef893640 (LWP 27604)] [New Thread 0x7fffed14d640 (LWP 27606)] [New Thread 0x7fffec918640 (LWP 27607)] Could not detect package type, probably default? App dir is "/usr/local/bin" profilePath from KdenliveSetting::mltPath: "/usr/share/mlt-7/profiles" meltPath from KdenliveSetting::rendererPath: "/usr/bin/melt-7" [New Thread 0x7fffc9f47640 (LWP 27608)] Empty metadata for "audiochannels" Empty metadata for "audioconvert" Empty metadata for "imageconvert" Empty metadata for "avcolour_space" Empty metadata for "avcolor_space" Empty metadata for "avdeinterlace" Empty metadata for "swscale" Empty metadata for "swresample" Empty metadata for "glsl.manager" Empty metadata for "movit.convert" Empty metadata for "movit.crop" Empty metadata for "movit.resample" Empty metadata for "movit.resize" Empty metadata for "telecide" Empty metadata for "deinterlace" plugin not available: "avfilter.acompressor" plugin not available: "avfilter.aecho" plugin not available: "avfilter.agate" plugin not available: "avfilter.atadenoise" plugin not available: "avfilter.bwdif" plugin not available: "avfilter.deblock" plugin not available: "avfilter.dedot" plugin not available: "avfilter.deflate" plugin not available: "avfilter.derain" plugin not available: "avfilter.doubleweave" plugin not available: "avfilter.field" plugin not available: "avfilter.framestep" plugin not available: "avfilter.fspp" plugin not available: "avfilter.graphmonitor" plugin not available: "avfilter.hqdn3d" plugin not available: "avfilter.inflate" plugin not available: "avfilter.lagfun" plugin not available: "avfilter.loudnorm" plugin not available: "avfilter.random" plugin not available: "avfilter.removegrain" plugin not available: "avfilter.separatefields" plugin not available: "avfilter.shuffleplanes" plugin not available: "avfilter.sr" plugin not available: "avfilter.tmix" plugin not available: "avfilter.w3fdif" plugin not available: "avfilter.weave" plugin not available: "avfilter.yadif" plugin not available: "frei0r.baltan" plugin not available: "frei0r.bgsubtract0r" plugin not available: "frei0r.bigsh0t_eq_mask" plugin not available: "frei0r.bigsh0t_eq_to_rect" plugin not available: "frei0r.bigsh0t_eq_to_stereo" plugin not available: "frei0r.bigsh0t_hemi_to_eq" plugin not available: "frei0r.bigsh0t_rect_to_eq" plugin not available: "frei0r.bigsh0t_stabilize_360" plugin not available: "frei0r.bigsh0t_transform_360" plugin not available: "frei0r.delay0r" plugin not available: "frei0r.delaygrab" plugin not available: "frei0r.facebl0r" plugin not available: "frei0r.facedetect" plugin not available: "frei0r.lightgraffiti" plugin not available: "frei0r.lightgraffiti" plugin not available: "frei0r.tehRoxx0r" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa.9354877" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "ladspa" plugin not available: "movit.unsharp_mask" plugin not available: "timewarp" plugin not available: "opencv.tracker" plugin not available: "frei0r.sleid0r_push-down" plugin not available: "frei0r.sleid0r_push-left" plugin not available: "frei0r.sleid0r_push-right" plugin not available: "frei0r.sleid0r_push-up" plugin not available: "frei0r.sleid0r_slide-down" plugin not available: "frei0r.sleid0r_slide-left" plugin not available: "frei0r.sleid0r_slide-up" plugin not available: "frei0r.sleid0r_slide-right" plugin not available: "frei0r.sleid0r_wipe-barn-door-h" plugin not available: "frei0r.sleid0r_wipe-barn-door-v" plugin not available: "frei0r.sleid0r_wipe-circle" plugin not available: "frei0r.sleid0r_wipe-down" plugin not available: "frei0r.sleid0r_wipe-left" plugin not available: "frei0r.sleid0r_wipe-rect" plugin not available: "frei0r.sleid0r_wipe-right" plugin not available: "frei0r.sleid0r_wipe-up" plugin not available: "region" === /// CANNOT ACCESS SPEECH DICTIONARIES FOLDER [New Thread 0x7fffc96fb640 (LWP 27609)] [New Thread 0x7fffc398f640 (LWP 27630)] QQmlEngine::setContextForObject(): Object already has a QQmlContext [New Thread 0x7fffc273d640 (LWP 27631)] [New Thread 0x7fffc14fc640 (LWP 27632)] [Detaching after fork from child process 27633] [Detaching after fork from child process 27635] [Detaching after fork from child process 27637] [New Thread 0x7fffc0b5f640 (LWP 27639)] [New Thread 0x7fffaffff640 (LWP 27640)] Hspell: can't open /usr/share/hspell/hebrew.wgz.sizes. kf.sonnet.clients.hspell: HSpellDict::HSpellDict: Init failed QQmlEngine::setContextForObject(): Object already has a QQmlContext [New Thread 0x7fffaeb0d640 (LWP 27641)] [New Thread 0x7fffae28e640 (LWP 27642)] QQmlEngine::setContextForObject(): Object already has a QQmlContext QQmlEngine::setContextForObject(): Object already has a QQmlContext [New Thread 0x7fffad04d640 (LWP 27643)] [New Thread 0x7fff9bfff640 (LWP 27644)] [New Thread 0x7fff9b7fe640 (LWP 27645)] [New Thread 0x7fff9affd640 (LWP 27646)] [New Thread 0x7fff9a7fc640 (LWP 27647)] [New Thread 0x7fff99dbb640 (LWP 27648)] [Thread 0x7fff99dbb640 (LWP 27648) exited] [New Thread 0x7fff99dbb640 (LWP 27649)] [New Thread 0x7fff995ba640 (LWP 27650)] [New Thread 0x7fff98cb9640 (LWP 27651)] [New Thread 0x7fff77fff640 (LWP 27652)] [New Thread 0x7fff777fe640 (LWP 27653)] [New Thread 0x7fff76ffd640 (LWP 27654)] :::: USING TRACK COMPOSITING: "frei0r.cairoblend" QQmlEngine::setContextForObject(): Object already has a QQmlContext :::: USING TRACK COMPOSITING: "frei0r.cairoblend" [New Thread 0x7fff75976640 (LWP 27655)] [New Thread 0x7fff75935640 (LWP 27656)] [New Thread 0x7fff75134640 (LWP 27657)] :::: USING TRACK COMPOSITING: "frei0r.cairoblend" :::: USING TRACK COMPOSITING: "frei0r.cairoblend" [New Thread 0x7fff7491c640 (LWP 27658)] [New Thread 0x7fff37d5f640 (LWP 27659)] [New Thread 0x7fff36881640 (LWP 27660)] [Thread 0x7fffc273d640 (LWP 27631) exited] [Thread 0x7fff76ffd640 (LWP 27654) exited] [Thread 0x7fff37d5f640 (LWP 27659) exited] [Thread 0x7fff75935640 (LWP 27656) exited] [Thread 0x7fffc9f47640 (LWP 27608) exited] ^C Thread 1 "kdenlive" received signal SIGINT, Interrupt. __futex_abstimed_wait_common64 (private=128, cancel=true, abstime=0x0, op=265, expected=27658, futex_word=0x7fff7491c910) at ./nptl/futex-internal.c:57 Download failed: Invalid argument. Continuing without source file ./nptl/./nptl/futex-internal.c. 57 ./nptl/futex-internal.c: No such file or directory. (gdb) cont Continuing. (above, I hit CTRL-C after several minutes of inactivity). -- You are receiving this mail because: You are watching all bug changes.
