GNU gdb (GDB) 7.1-ubuntu Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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". For bug reporting instructions, please see: ... Reading symbols from /usr/bin/mythfrontend.real...Reading symbols from /usr/lib/debug/usr/bin/mythfrontend.real...done. done. (gdb) run Starting program: /usr/bin/mythfrontend.real [Thread debugging using libthread_db enabled] Xlib: extension "RANDR" missing on display ":0.0". 2010-07-22 22:57:16.969 mythfrontend version: trunk [25409] www.mythtv.org 2010-07-22 22:57:16.969 Using runtime prefix = /usr 2010-07-22 22:57:16.969 Using configuration directory = /home/user/.mythtv 2010-07-22 22:57:17.506 Empty LocalHostName. 2010-07-22 22:57:17.506 Using localhost value of ganymede [New Thread 0x7fffdd852710 (LWP 4716)] [New Thread 0x7fffdd051710 (LWP 4717)] [New Thread 0x7fffdc850710 (LWP 4718)] 2010-07-22 22:57:17.581 New DB connection, total: 1 2010-07-22 22:57:17.582 Unable to connect to database! 2010-07-22 22:57:17.582 Driver error was [1/2002]: QMYSQL: Unable to connect Database error was: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) 2010-07-22 22:57:17.737 UPnPautoconf() - Found one UPnP backend [New Thread 0x7fffd779f710 (LWP 4719)] [Thread 0x7fffd779f710 (LWP 4719) exited] 2010-07-22 22:57:17.861 Testing network connectivity to '192.168.11.97' 2010-07-22 22:57:17.871 Closing DB connection named 'DBManager0' 2010-07-22 22:57:17.875 Connected to database 'mythconverg' at host: 192.168.11.97 2010-07-22 22:57:17.876 Closing DB connection named 'DBManager0' 2010-07-22 22:57:17.876 Current locale en_GB 2010-07-22 22:57:17.877 No locale defaults file for en_GB, skipping 2010-07-22 22:57:17.898 ScreenSaverX11Private: Gnome screen saver support enabled 2010-07-22 22:57:17.973 DPMS is disabled. 2010-07-22 22:57:17.977 Connected to database 'mythconverg' at host: 192.168.11.97 2010-07-22 22:57:18.029 Desktop video mode: 2560x1024 60.0204 Hz 2010-07-22 22:57:18.099 DisplaResX: Unable to XRRgetScreenInfo 2010-07-22 22:57:18.106 Enabled verbose msgs: important general 2010-07-22 22:57:18.202 LIRC, Error: Failed to connect to Unix socket '/var/run/lirc/lircd' eno: No such file or directory (2) 2010-07-22 22:57:18.203 JoystickMenuThread: Joystick disabled - Failed to read /home/user/.mythtv/joystickmenurc 2010-07-22 22:57:18.357 Using Frameless Window 2010-07-22 22:57:18.357 Using Full Screen Window [New Thread 0x7fffd779f710 (LWP 4725)] [New Thread 0x7fffd69be710 (LWP 4726)] 2010-07-22 22:57:18.673 Using the Qt painter 2010-07-22 22:57:18.791 MythFontProperties, Warning: Attempting to define 'small' with face 'DejaVu Sans', but it already exists with face 'Arial' Location: /usr/share/mythtv/themes/MythCenter/base.xml @ 1006 Name: 'small' Type: 'fontdef' 2010-07-22 22:57:18.801 MythFontProperties, Error: Failed to load 'Thorndale', got 'DejaVu Sans' instead Location: /usr/share/mythtv/themes/MythCenter/base.xml @ 1012 Name: 'medium' Type: 'fontdef' 2010-07-22 22:57:18.818 MythFontProperties, Error: Failed to load 'Thorndale', got 'DejaVu Sans' instead Location: /usr/share/mythtv/themes/MythCenter/base.xml @ 1018 Name: 'large' Type: 'fontdef' 2010-07-22 22:57:18.838 MythFontProperties, Error: Failed to load 'Thorndale', got 'DejaVu Sans' instead Location: /usr/share/mythtv/themes/MythCenter/base.xml @ 1024 Name: 'clock' Type: 'fontdef' 2010-07-22 22:57:18.867 Current MythTV Schema Version (DBSchemaVer): 1260 2010-07-22 22:57:18.870 New DB connection, total: 2 2010-07-22 22:57:18.872 Connected to database 'mythconverg' at host: 192.168.11.97 2010-07-22 22:57:19.184 ThemeInfo, Warning: Unable to open themeinfo.xml for /usr/share/mythtv/themes/BlackCurves-OSD/themeinfo.xml 2010-07-22 22:57:19.185 ThemeInfo, Error: The theme (/usr/share/mythtv/themes/BlackCurves-OSD) is missing a themeinfo.xml file. 2010-07-22 22:57:19.201 ThemeInfo, Warning: Unable to open themeinfo.xml for /usr/share/mythtv/themes/Gray-OSD/themeinfo.xml 2010-07-22 22:57:19.201 ThemeInfo, Error: The theme (/usr/share/mythtv/themes/Gray-OSD) is missing a themeinfo.xml file. 2010-07-22 22:57:19.231 DisplaResX: Unable to XRRgetScreenInfo 2010-07-22 22:57:19.753 Registering Internal as a media playback plugin. [New Thread 0x7fffd49a9710 (LWP 4727)] [New Thread 0x7fffd41a8710 (LWP 4728)] [New Thread 0x7fffd3883710 (LWP 4741)] [Thread 0x7fffd3883710 (LWP 4741) exited] 2010-07-22 22:57:19.996 Registering WebBrowser as a media playback plugin. 2010-07-22 22:57:20.142 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.143 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.143 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.145 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.146 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.146 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.147 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.147 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.147 MediaMonitorUnix::AddDevice() - empty device path. 2010-07-22 22:57:20.147 MonitorRegisterExtensions(0x100, gif,jpg,png) 2010-07-22 22:57:20.509 Current MythMusic Schema Version (MusicDBSchemaVer): 1017 2010-07-22 22:57:20.647 MonitorRegisterExtensions(0x40, mp3,mp2,ogg,oga,flac,wma,wav,ac3,oma,omg,atp,ra,dts,aac,m4a,aa3,tta,mka,aiff,swa,wv) 2010-07-22 22:57:21.007 Current MythVideo Schema Version (mythvideo.DBSchemaVer): 1036 2010-07-22 22:57:21.331 Loading menu theme from /usr/share/mythtv/themes/defaultmenu//mainmenu.xml 2010-07-22 22:57:21.353 Found mainmenu.xml for theme 'MythCenter' 2010-07-22 22:57:21.608 MythCoreContext: Connecting to backend server: 192.168.11.97:6543 (try 1 of 1) 2010-07-22 22:57:21.609 Using protocol version 58 2010-07-22 22:57:21.719 SendReceiveStringList(QUERY_TIME_ZONE) called from UI thread 2010-07-22 22:57:44.761 Loading menu theme from /usr/share/mythtv/themes/defaultmenu//library.xml 2010-07-22 22:57:47.107 New DB connection, total: 3 2010-07-22 22:57:47.110 Connected to database 'mythconverg' at host: 192.168.11.97 2010-07-22 22:57:47.766 XMLParse: LoadTheme using '/usr/share/mythtv/themes/default/music-ui.xml' 2010-07-22 22:57:49.818 CD status has changed. 2010-07-22 22:58:03.681 AO: Resampling from 44 kHz to 48 kHz with quality medium 2010-07-22 22:58:03.681 AO: Opening audio device 'PulseAudio:default' ch 2(2) sr 48000 sf 32 bit floating point reenc 0 [Thread 0x7fffd49a9710 (LWP 4727) exited] [Thread 0x7fffd41a8710 (LWP 4728) exited] [New Thread 0x7fffd41a8710 (LWP 4769)] [New Thread 0x7fffd49a9710 (LWP 4770)] [New Thread 0x7fffd3883710 (LWP 4809)] [New Thread 0x7fffc70f9710 (LWP 4810)] [Thread 0x7fffd3883710 (LWP 4809) exited] [Thread 0x7fffc70f9710 (LWP 4810) exited] [New Thread 0x7fffc70f9710 (LWP 4811)] [Thread 0x7fffd41a8710 (LWP 4769) exited] [Thread 0x7fffc70f9710 (LWP 4811) exited] [New Thread 0x7fffc70f9710 (LWP 4840)] [Thread 0x7fffc70f9710 (LWP 4840) exited] [New Thread 0x7fffc70f9710 (LWP 4841)] [New Thread 0x7fffd41a8710 (LWP 4844)] Program received signal SIGSEGV, Segmentation fault. 0x00007fffed5278dc in QMutex::lock() () from /usr/lib/libQtCore.so.4 (gdb) set pagination off (gdb) theread apply all bt Thread 18 (Thread 0x7fffd41a8710 (LWP 4844)): #0 0x00007ffff089dbc9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007fffed52c0e5 in ?? () from /usr/lib/libQtCore.so.4 #2 0x00007fffed52c1b2 in QThread::usleep(unsigned long) () from /usr/lib/libQtCore.so.4 #3 0x00007ffff4d1afdc in AudioOutputBase::OutputAudioLoop (this=0x2de2950) at audiooutputbase.cpp:1206 #4 0x00007ffff4d1ba72 in AudioOutputBase::run (this=0x2de2950) at audiooutputbase.cpp:1313 #5 0x00007fffed52c775 in ?? () from /usr/lib/libQtCore.so.4 #6 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #7 0x00007fffeca686fd in clone () from /lib/libc.so.6 #8 0x0000000000000000 in ?? () Thread 17 (Thread 0x7fffc70f9710 (LWP 4841)): #0 0x00007fffeca5bf83 in poll () from /lib/libc.so.6 #1 0x00007ffff3b9e41f in ?? () from /usr/lib/libpulse.so.0 #2 0x00007ffff3b8dd86 in pa_mainloop_poll () from /usr/lib/libpulse.so.0 #3 0x00007ffff3b8f809 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0 #4 0x00007ffff3b8f8c0 in pa_mainloop_run () from /usr/lib/libpulse.so.0 #5 0x00007ffff3b9e21b in ?? () from /usr/lib/libpulse.so.0 #6 0x00007fffebf410e8 in ?? () from /usr/lib/libpulsecommon-0.9.21.so #7 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #8 0x00007fffeca686fd in clone () from /lib/libc.so.6 #9 0x0000000000000000 in ?? () Thread 12 (Thread 0x7fffd49a9710 (LWP 4770)): #0 0x00007fffeca60fe3 in select () from /lib/libc.so.6 #1 0x00007ffff586509a in MythSocketThread::run (this=0x8748f0) at mythsocketthread.cpp:257 #2 0x00007fffed52c775 in ?? () from /usr/lib/libQtCore.so.4 #3 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #4 0x00007fffeca686fd in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 7 (Thread 0x7fffd69be710 (LWP 4726)): #0 0x00007ffff089dbc9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007fffed52c0e5 in ?? () from /usr/lib/libQtCore.so.4 #2 0x00007fffed52c1b2 in QThread::usleep(unsigned long) () from /usr/lib/libQtCore.so.4 #3 0x00007ffff58a0609 in MythSignalingTimer::run (this=0xb4f660) at mythsignalingtimer.cpp:73 #4 0x00007fffed52c775 in ?? () from /usr/lib/libQtCore.so.4 #5 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #6 0x00007fffeca686fd in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 6 (Thread 0x7fffd779f710 (LWP 4725)): #0 0x00007ffff089d85c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007fffed52d72b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4 #2 0x00007ffff58c3fb5 in MythCoreContext::waitPrivRequest (this=0xa645a0) at mythcorecontext.cpp:1067 #3 0x000000000044364c in run_priv_thread (data=0x0) at main.cpp:963 #4 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #5 0x00007fffeca686fd in clone () from /lib/libc.so.6 #6 0x0000000000000000 in ?? () Thread 4 (Thread 0x7fffdc850710 (LWP 4718)): #0 0x00007fffeca60fe3 in select () from /lib/libc.so.6 #1 0x00007ffff5b6fd30 in SSDP::run (this=0xa6c7a0) at ssdp.cpp:229 #2 0x00007fffed52c775 in ?? () from /usr/lib/libQtCore.so.4 #3 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #4 0x00007fffeca686fd in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 3 (Thread 0x7fffdd051710 (LWP 4717)): #0 0x00007ffff089dbc9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007fffed52c0e5 in ?? () from /usr/lib/libQtCore.so.4 #2 0x00007fffed52c250 in QThread::msleep(unsigned long) () from /usr/lib/libQtCore.so.4 #3 0x00007ffff5b77190 in TaskQueue::run (this=0xa6b950) at taskqueue.cpp:126 #4 0x00007fffed52c775 in ?? () from /usr/lib/libQtCore.so.4 #5 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #6 0x00007fffeca686fd in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 2 (Thread 0x7fffdd852710 (LWP 4716)): #0 0x00007fffeca5bf83 in poll () from /lib/libc.so.6 #1 0x00007fffe8c0a4a9 in ?? () from /lib/libglib-2.0.so.0 #2 0x00007fffe8c0a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0 #3 0x00007fffed64a566 in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/libQtCore.so.4 #4 0x00007fffed61f992 in QEventLoop::processEvents(QFlags) () from /usr/lib/libQtCore.so.4 #5 0x00007fffed61fd6c in QEventLoop::exec(QFlags) () from /usr/lib/libQtCore.so.4 #6 0x00007fffed529d59 in QThread::exec() () from /usr/lib/libQtCore.so.4 #7 0x00007ffff5b8668c in WorkerThread::run (this=0xa67e90) at threadpool.cpp:267 #8 0x00007fffed52c775 in ?? () from /usr/lib/libQtCore.so.4 #9 0x00007ffff08989ca in start_thread () from /lib/libpthread.so.0 #10 0x00007fffeca686fd in clone () from /lib/libc.so.6 #11 0x0000000000000000 in ?? () Thread 1 (Thread 0x7ffff7eb27a0 (LWP 4712)): #0 0x00007fffed5278dc in QMutex::lock() () from /usr/lib/libQtCore.so.4 #1 0x000000000047b8ca in QMutexLocker::relock (this=0x7fffffffb1e0) at /usr/include/qt4/QtCore/qmutex.h:120 #2 0x000000000047b820 in QMutexLocker (this=0x7fffffffb1e0, m=0x2dc50b8) at /usr/include/qt4/QtCore/qmutex.h:102 #3 0x00007ffff4da0381 in OutputListeners::prepareVisuals (this=0x2de2970) at output.cpp:80 #4 0x00007ffff4d16b93 in AudioOutputBase::Reset (this=0x2de2950) at audiooutputbase.cpp:659 #5 0x00007ffff4d16a72 in AudioOutputBase::PauseUntilBuffered (this=0x2de2950) at audiooutputbase.cpp:641 #6 0x00007fffd209f2ae in CdDecoder::initialize (this=0x259a8d0) at cddecoder.cpp:92 #7 0x00007fffd219d988 in MusicPlayer::play (this=0xbdb100) at musicplayer.cpp:304 #8 0x00007fffd219d051 in MusicPlayer::playFile (this=0xbdb100, filename=...) at musicplayer.cpp:198 #9 0x00007fffd20e3b9d in PlaybackBoxMusic::play (this=0x1e21370) at playbackbox.cpp:1338 #10 0x00007fffd20dfc78 in PlaybackBoxMusic::handlePush (this=0x1e21370, buttonname=...) at playbackbox.cpp:586 #11 0x00007fffd21b62ec in PlaybackBoxMusic::qt_metacall (this=0x1e21370, _c=QMetaObject::InvokeMetaMethod, _id=38, _a=0x7fffffffb6a0) at moc_playbackbox.cpp:188 #12 0x00007fffed633e3f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4 #13 0x00007ffff4f264fd in UIPushButtonType::pushed (this=0x2db8fb0, _t1=...) at moc_uitypes.cpp:715 #14 0x00007ffff4dcf984 in UIPushButtonType::push (this=0x2db8fb0) at uitypes.cpp:3540 #15 0x00007fffd20e92c1 in PlaybackBoxMusic::handleTreeListSignals (this=0x1e21370, node_int=-1, attributes=0x25905c0) at playbackbox.cpp:2174 #16 0x00007fffd21b6139 in PlaybackBoxMusic::qt_metacall (this=0x1e21370, _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0x7fffffffb940) at moc_playbackbox.cpp:170 #17 0x00007fffed633e3f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4 #18 0x00007ffff4f26216 in UIManagedTreeListType::nodeSelected (this=0x2dc2270, _t1=-1, _t2=0x25905c0) at moc_uitypes.cpp:625 #19 0x00007ffff4dcc0c8 in UIManagedTreeListType::moveToNodesFirstChild (this=0x2dc2270, route_of_branches=...) at uitypes.cpp:2526 #20 0x00007fffd20e1f91 in PlaybackBoxMusic::postUpdate (this=0x1e21370) at playbackbox.cpp:960 #21 0x00007fffd20e2217 in PlaybackBoxMusic::occasionallyCheckCD (this=0x1e21370) at playbackbox.cpp:995 #22 0x00007fffd21b6328 in PlaybackBoxMusic::qt_metacall (this=0x1e21370, _c=QMetaObject::InvokeMetaMethod, _id=39, _a=0x7fffffffbb20) at moc_playbackbox.cpp:189 #23 0x00007fffed633e3f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4 #24 0x00007fffed630a63 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4 #25 0x00007fffede2222c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #26 0x00007fffede286fb in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #27 0x00007fffed62106c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 #28 0x00007fffed64dd42 in ?? () from /usr/lib/libQtCore.so.4 #29 0x00007fffed64a848 in ?? () from /usr/lib/libQtCore.so.4 #30 0x00007fffe8c068c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0 #31 0x00007fffe8c0a748 in ?? () from /lib/libglib-2.0.so.0 #32 0x00007fffe8c0a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0 #33 0x00007fffed64a513 in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/libQtCore.so.4 #34 0x00007fffeded246e in ?? () from /usr/lib/libQtGui.so.4 #35 0x00007fffed61f992 in QEventLoop::processEvents(QFlags) () from /usr/lib/libQtCore.so.4 #36 0x00007fffed61fd6c in QEventLoop::exec(QFlags) () from /usr/lib/libQtCore.so.4 #37 0x00007ffff4d6557b in MythDialog::exec (this=0x1e21370) at mythdialogs.cpp:181 #38 0x00007fffd20b8916 in startPlayback () at main.cpp:254 #39 0x00007fffd20bca05 in runMusicPlayback () at main.cpp:610 #40 0x00007ffff5430488 in MythMainWindow::ExitToMainMenu (this=0xb508e0) at mythmainwindow.cpp:1307 #41 0x00007ffff54353fc in MythMainWindow::customEvent (this=0xb508e0, ce=0xb487c0) at mythmainwindow.cpp:1905 #42 0x00007fffed630da4 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4 #43 0x00007fffede77bdf in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4 #44 0x00007ffff5428423 in MythMainWindow::event (this=0xb508e0, e=0xb487c0) at mythmainwindow.cpp:822 #45 0x00007fffede2222c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #46 0x00007fffede286fb in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #47 0x00007fffed62106c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 #48 0x00007fffed6237e7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4 #49 0x00007fffed64a9d3 in ?? () from /usr/lib/libQtCore.so.4 #50 0x00007fffe8c068c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0 #51 0x00007fffe8c0a748 in ?? () from /lib/libglib-2.0.so.0 #52 0x00007fffe8c0a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0 #53 0x00007fffed64a513 in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/libQtCore.so.4 #54 0x00007fffeded246e in ?? () from /usr/lib/libQtGui.so.4 #55 0x00007fffed61f992 in QEventLoop::processEvents(QFlags) () from /usr/lib/libQtCore.so.4 #56 0x00007fffed61fd6c in QEventLoop::exec(QFlags) () from /usr/lib/libQtCore.so.4 #57 0x00007fffed623aab in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4 #58 0x0000000000448f30 in main (argc=1, argv=0x7fffffffe398) at main.cpp:1472 (gdb) help List of classes of commands: aliases -- Aliases of other commands breakpoints -- Making program stop at certain points data -- Examining data files -- Specifying and examining files internals -- Maintenance commands obscure -- Obscure features running -- Running the program stack -- Examining the stack status -- Status inquiries support -- Support facilities tracepoints -- Tracing of program execution without stopping the program user-defined -- User-defined commands Type "help" followed by a class name for a list of commands in that class. Type "help all" for the list of all commands. Type "help" followed by command name for full documentation. Type "apropos word" to search for commands related to "word". Command name abbreviations are allowed if unambiguous. (gdb) quit A debugging session is active. Inferior 1 [process 4712] will be killed. Quit anyway? (y or n)