Segmentation fault when exiting Kdenlive. Reproducible: Always Steps to Reproduce: 1. Exit Kdenlive $ gdb kdenlive GNU gdb (Ubuntu 7.10-1ubuntu2) 7.10 Copyright (C) 2015 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from kdenlive...Reading symbols from /usr/lib/debug/.build-id/ac/a152bfbef5b4f6125a9fc1a4866f3cacd42c95.debug...done. done. (gdb) run Starting program: /usr/bin/kdenlive [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffe35a1700 (LWP 31806)] [New Thread 0x7fffda040700 (LWP 31807)] [New Thread 0x7fffd983f700 (LWP 31808)] [New Thread 0x7fffd8bfe700 (LWP 31809)] [New Thread 0x7fffc8074700 (LWP 31811)] [New Thread 0x7fffc7873700 (LWP 31812)] Icon theme "oxygen" not found. Icon theme "oxygen" not found. Error: standard icon theme "oxygen" not found! [Thread 0x7fffc8074700 (LWP 31811) exited] [New Thread 0x7fffc8074700 (LWP 31813)] [New Thread 0x7fffa4d1a700 (LWP 31814)] [New Thread 0x7fffa3c60700 (LWP 31815)] QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible QWidget::setMaximumSize: (/QToolButton) Negative sizes (2,-2) are not possible Invalid playlist Removing cache at "/home/tumppi/.cache/kdenlive-thumbs.kcache" Invalid playlist [New Thread 0x7fffa2248700 (LWP 31817)] [Thread 0x7fffa2248700 (LWP 31817) exited] [New Thread 0x7fffa2248700 (LWP 31818)] [New Thread 0x7fffa1179700 (LWP 31819)] [New Thread 0x7fffa0978700 (LWP 31820)] [New Thread 0x7fff8ffff700 (LWP 31821)] [New Thread 0x7fff8b7fd700 (LWP 31822)] QXcbConnection: XCB error: 8 (BadMatch), sequence: 709, resource id: 67108888, major code: 154 (Unknown), minor code: 11 [Thread 0x7fff8ffff700 (LWP 31821) exited] [Thread 0x7fffa3c60700 (LWP 31815) exited] [Thread 0x7fffa1179700 (LWP 31819) exited] [Thread 0x7fffa4d1a700 (LWP 31814) exited] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fff8b7fd700 (LWP 31822)] 0x00007fffacbb7990 in ?? () (gdb) thread apply all bt Thread 16 (Thread 0x7fff8b7fd700 (LWP 31822)): #0 0x00007fffacbb7990 in ?? () #1 0x00007fffb526c9d9 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 #2 0x00007fffb5274f48 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 #3 0x00007fffb52b4d79 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 #4 0x00007ffff0a506aa in start_thread (arg=0x7fff8b7fd700) at pthread_create.c:333 #5 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 14 (Thread 0x7fffa0978700 (LWP 31820)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007ffff6ff1b33 in consumer_read_ahead_thread (arg=0x1fdabf0) at mlt_consumer.c:841 #2 0x000000000073a56d in RenderThread::run (this=0x7fff90000c40) at ../../src/monitor/glwidget.cpp:1121 #3 0x00007ffff25272be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff0a506aa in start_thread (arg=0x7fffa0978700) at pthread_create.c:333 #5 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 ---Type <return> to continue, or q <return> to quit--- Thread 12 (Thread 0x7fffa2248700 (LWP 31818)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007fffacbb85ef in ?? () #2 0x0000000000000000 in ?? () Thread 8 (Thread 0x7fffc8074700 (LWP 31813)): #0 0x00007ffff1b2c8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007fffaff9112c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0 #2 0x00007ffff0a506aa in start_thread (arg=0x7fffc8074700) at pthread_create.c:333 #3 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7fffc7873700 (LWP 31812)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007fffee736aea in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee6c6a69 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fffee6c708b in g_async_queue_timeout_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007fffee7193ba in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 ---Type <return> to continue, or q <return> to quit--- #5 0x00007fffee718965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x00007ffff0a506aa in start_thread (arg=0x7fffc7873700) at pthread_create.c:333 #7 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7fffd8bfe700 (LWP 31809)): #0 0x00007ffff1b2c8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007fffee6f21ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee6f22fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fffd8c0628d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so #4 0x00007fffee718965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff0a506aa in start_thread (arg=0x7fffd8bfe700) at pthread_create.c:333 #6 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7fffd983f700 (LWP 31808)): #0 0x00007ffff1b2c8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007fffee6f21ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee6f2572 in g_main_loop_run () ---Type <return> to continue, or q <return> to quit--- from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fffe12554c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #4 0x00007fffee718965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff0a506aa in start_thread (arg=0x7fffd983f700) at pthread_create.c:333 #6 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7fffda040700 (LWP 31807)): #0 0x00007ffff1b2c8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007fffee6f21ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee6f22fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fffee6f2339 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007fffee718965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff0a506aa in start_thread (arg=0x7fffda040700) at pthread_create.c:333 #6 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7fffe35a1700 (LWP 31806)): #0 0x00007ffff1b2c8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007fffeca72bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 ---Type <return> to continue, or q <return> to quit--- #2 0x00007fffeca7474f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007fffe5aefa39 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so #4 0x00007ffff25272be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff0a506aa in start_thread (arg=0x7fffe35a1700) at pthread_create.c:333 #6 0x00007ffff1b37eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7fffe6393800 (LWP 31802)): #0 _dl_close_worker (map=map@entry=0xff0d40) at dl-close.c:181 #1 0x00007ffff7defe58 in _dl_close_worker (map=0xff0d40) at dl-close.c:125 #2 _dl_close (_map=0xff0d40) at dl-close.c:775 #3 0x00007ffff7de9464 in _dl_catch_error (objname=0xb652c0, errstring=0xb652c8, mallocedp=0xb652b8, operate=0x7ffff0c68090 <dlclose_doit>, args=0xff0d40) at dl-error.c:187 #4 0x00007ffff0c6862d in _dlerror_run ( operate=operate@entry=0x7ffff0c68090 <dlclose_doit>, args=0xff0d40) at dlerror.c:163 #5 0x00007ffff0c680bf in __dlclose (handle=<optimized out>) at dlclose.c:46 #6 0x00007ffff6fe2959 in mlt_property_clear (self=0x10192b0) at mlt_property.c:109 ---Type <return> to continue, or q <return> to quit--- #7 mlt_property_close (self=0x10192b0) at mlt_property.c:785 #8 0x00007ffff6fe4a90 in mlt_properties_close (self=self@entry=0xe4cc00) at mlt_properties.c:1394 #9 0x00007ffff6ff6760 in mlt_repository_close (self=0xe4cc00) at mlt_repository.c:255 #10 0x00007ffff6ff590d in mlt_factory_close () at mlt_factory.c:438 #11 0x00007ffff6dc62e5 in Mlt::Factory::close () at MltFactory.cpp:62 #12 0x00000000007fcfb4 in MainWindow::~MainWindow (this=this@entry=0xda4a90, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../src/mainwindow.cpp:544 #13 0x00000000007fd0f9 in MainWindow::~MainWindow (this=0xda4a90, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../src/mainwindow.cpp:545 #14 0x00007ffff2738670 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff33c4edb in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #16 0x00007ffff34d639b in QMainWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007ffff551a177 in KMainWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5 #18 0x00007ffff55525c5 in KXmlGuiWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5 ---Type <return> to continue, or q <return> to quit--- #19 0x00007ffff3382b8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #20 0x00007ffff3388230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #21 0x00007ffff2706f1b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #22 0x00007ffff2709057 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #23 0x00007ffff270c309 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #24 0x0000000000518472 in main (argc=1, argv=<optimized out>) at ../../src/main.cpp:118 (gdb)
Sorry for late reply, which Ubuntu/Kdenlive version are you testing? the crash comes from SDL library, where you playing a special audio file / using some audio scope?
Thomas, can you please test using the recent stable Kdenlive 16.04.2 version, with MLT 6.2.0+ at least? Does the bug still persists? If not, I would like to ask you to be so kind as to close this bug report. Thank you very much for your cooperation!