Hi David On Thu, 13. March 2008 21:43:51 David Morris wrote: > Thanks for your bug report. Please try to obtain a backtrace > http://wiki.ubuntu.com/DebuggingProgramCrash and attach the file to the > bug report. This will greatly help us in tracking down your problem.
I found the reason for the sigsevs, I think. During one of the last system starts X failed to enabe DRI support of fglrx (/usr/lib/dri/fglrx_dri.so). Mythfrontend worked as a charm. Enabling DRI again the problem came back. Mythfrontend can't be closed, leaving mythfrontend won't close it's fullscreen-window. CPU% usage goes up to 90% and more. Only <Ctrl>+<C> will stop Mythfrontend. And again every third or second stop of mythtvfrontend caues a sigsev. If I use gdb for backtracking as described on: https://wiki.ubuntu.com/Backtrace The message "The program is running. Exit anyway? (y or n)" comes up _after_ I stopped mythfrontend.real by pressing <Ctrl>+<C> regards, thomas GNU gdb 6.7.1-debian Copyright (C) 2007 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 "i486-linux-gnu"... (no debugging symbols found) Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) run Starting program: /usr/bin/mythfrontend.real (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) Qt: gdb: -nograb added to command-line options. Use the -dograb option to enforce grabbing. 2008-03-14 14:20:35.050 Using runtime prefix = /usr, libdir = /usr/lib 2008-03-14 14:20:36.652 XScreenSaver support enabled 2008-03-14 14:20:36.653 DPMS is active. 2008-03-14 14:20:36.653 Empty LocalHostName. 2008-03-14 14:20:36.654 Using localhost value of bronto [New Thread 0xb7cf69e0 (LWP 4621)] [New Thread 0xb7a76b90 (LWP 4626)] [New Thread 0xb7275b90 (LWP 4627)] [New Thread 0xb6a74b90 (LWP 4628)] 2008-03-14 14:20:36.792 New DB connection, total: 1 2008-03-14 14:20:36.797 Connected to database 'mythconverg' at host: localhost 2008-03-14 14:20:36.819 Closing DB connection named 'DBManager0' 2008-03-14 14:20:36.854 Total desktop dim: 1280x1024, with 1 screen[s]. 2008-03-14 14:20:36.854 Connected to database 'mythconverg' at host: localhost 2008-03-14 14:20:36.881 Using screen 0, 1280x1024 at 0,0 2008-03-14 14:20:36.933 New DB connection, total: 2 2008-03-14 14:20:36.934 Connected to database 'mythconverg' at host: localhost 2008-03-14 14:20:36.937 mythfrontend version: 0.21.20080304-1 www.mythtv.org 2008-03-14 14:20:36.937 Enabled verbose msgs: important general [New Thread 0xb61e8b90 (LWP 4634)] 2008-03-14 14:20:37.215 Unable to parse themeinfo.xml for glass-wide 2008-03-14 14:20:37.216 The theme (glass-wide) is missing a themeinfo.xml file 2008-03-14 14:20:37.558 Unable to parse themeinfo.xml for glass-wide 2008-03-14 14:20:37.575 The theme (glass-wide) is missing a themeinfo.xml file 2008-03-14 14:20:38.517 Total desktop dim: 1280x1024, with 1 screen[s]. 2008-03-14 14:20:38.518 Using screen 0, 1280x1024 at 0,0 2008-03-14 14:20:38.521 Switching to square mode (Retro) 2008-03-14 14:20:38.860 Using the OpenGL painter 2008-03-14 14:20:38.865 lirc init success using configuration file: /home/templin/.mythtv/lircrc 2008-03-14 14:20:38.867 JoystickMenuClient Error: Joystick disabled - Failed to read /home/templin/.mythtv/joystickmenurc [New Thread 0xaaf03b90 (LWP 4636)] [New Thread 0xaa702b90 (LWP 4637)] [Thread 0xaa702b90 (LWP 4637) exited] 2008-03-14 14:20:41.113 Loading from: /usr/share/mythtv/themes/Retro/base.xml 2008-03-14 14:20:41.184 Loading from: /usr/share/mythtv/themes/default/base.xml 2008-03-14 14:20:41.237 Registering Internal as a media playback plugin. 2008-03-14 14:20:41.507 Connecting to backend server: 127.0.0.1:6543 (try 1 of 5) 2008-03-14 14:20:41.508 Using protocol version 40 2008-03-14 14:20:42.762 Using ARB NPOT texture extension 2008-03-14 14:20:48.223 TV: Attempting to change from None to WatchingLiveTV 2008-03-14 14:20:48.224 Using protocol version 40 [New Thread 0xaa702b90 (LWP 4646)] [New Thread 0xa6586b90 (LWP 4652)] 2008-03-14 14:20:50.375 DPMS Deactivated 2008-03-14 14:20:50.558 New DB connection, total: 3 2008-03-14 14:20:50.558 Connected to database 'mythconverg' at host: localhost 2008-03-14 14:20:51.229 AFD: Opened codec 0x8903250, id(MPEG2VIDEO) type(Video) 2008-03-14 14:20:51.230 AFD: codec MP2 has 2 channels 2008-03-14 14:20:51.230 AFD: Opened codec 0x8903950, id(MP2) type(Audio) 2008-03-14 14:20:51.359 Opening audio device 'default'. ch 2(2) sr 48000 2008-03-14 14:20:51.360 Opening ALSA audio device 'default'. 2008-03-14 14:20:51.539 VideoOutputXv: XVideo Adaptor Name: 'ATI Radeon Video Overlay' 2008-03-14 14:20:51.619 OSD Theme Dimensions W: 640 H: 480 2008-03-14 14:20:52.434 TV: Changing from None to WatchingLiveTV 2008-03-14 14:20:52.452 Video timing method: RTC 2008-03-14 14:20:52.455 Using realtime priority. 2008-03-14 14:20:52.577 XMLParse::LoadTheme using /usr/share/mythtv/themes/Retro/ui.xml 2008-03-14 14:20:55.151 NVP: prebuffering pause 2008-03-14 14:21:20.382 NVP: prebuffering pause 2008-03-14 14:22:02.259 NVP: prebuffering pause 2008-03-14 14:22:04.367 NVP: Prebuffer wait timed out 10 times. 2008-03-14 14:22:05.527 NVP: prebuffering pause 2008-03-14 14:22:07.647 NVP: Prebuffer wait timed out 10 times. 2008-03-14 14:22:09.770 NVP: Prebuffer wait timed out 10 times. 2008-03-14 14:22:15.000 TV: Attempting to change from WatchingLiveTV to None 2008-03-14 14:22:15.490 TV: Changing from WatchingLiveTV to None 2008-03-14 14:22:15.542 DPMS Reactivated. [New Thread 0xa5d83b90 (LWP 4658)] [New Thread 0xa5582b90 (LWP 4659)] [New Thread 0xa467db90 (LWP 4661)] [New Thread 0xa0cd6b90 (LWP 4662)] [Thread 0xa0cd6b90 (LWP 4662) exited] [Thread 0xa467db90 (LWP 4661) exited] [Thread 0xa5d83b90 (LWP 4658) exited] [Thread 0xa5582b90 (LWP 4659) exited] [Thread 0xa6586b90 (LWP 4652) exited] Program received signal SIGINT, Interrupt. [Switching to Thread 0xb7cf69e0 (LWP 4621)] 0xb7f9c410 in __kernel_vsyscall () (gdb) backtrace full #0 0xb7f9c410 in __kernel_vsyscall () No symbol table info available. #1 0x46bd7929 in ioctl () from /lib/tls/i686/cmov/libc.so.6 No symbol table info available. #2 0xb4998cf4 in ?? () from /usr/lib/dri/fglrx_dri.so No symbol table info available. #3 0x00000010 in ?? () No symbol table info available. #4 0x4008642a in ?? () No symbol table info available. #5 0xbfc99ad8 in ?? () No symbol table info available. #6 0xb4757577 in ?? () from /usr/lib/dri/fglrx_dri.so No symbol table info available. #7 0x00000001 in ?? () No symbol table info available. #8 0x46c53ff4 in ?? () from /lib/tls/i686/cmov/libc.so.6 No symbol table info available. #9 0x0000001a in ?? () No symbol table info available. #10 0x00000000 in ?? () No symbol table info available. (gdb) info registers eax 0xfffffff7 -9 ecx 0x4008642a 1074291754 edx 0xbfc99ad8 -1077306664 ebx 0x10 16 esp 0xbfc99aa8 0xbfc99aa8 ebp 0xbfc99ae8 0xbfc99ae8 esi 0x10 16 edi 0x80000018 -2147483624 eip 0xb7f9c410 0xb7f9c410 <__kernel_vsyscall+16> eflags 0x200246 [ PF ZF IF ID ] cs 0x73 115 ss 0x7b 123 ds 0x7b 123 es 0x7b 123 fs 0x0 0 gs 0x33 51 (gdb) thread apply all backtrace Thread 8 (Thread 0xaa702b90 (LWP 4646)): #0 0xb7f9c410 in __kernel_vsyscall () #1 0x46bd8311 in select () from /lib/tls/i686/cmov/libc.so.6 #2 0x4b7bb5a4 in MythSocket::readyReadThread () from /usr/lib/libmyth-0.21.so.0 #3 0x46c8c4fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #4 0x46bdf8ee in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 6 (Thread 0xaaf03b90 (LWP 4636)): #0 0xb7f9c410 in __kernel_vsyscall () #1 0x46c9399b in read () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x48265ea2 in lirc_nextcode (code=0xaaf032f4) at lirc_client.c:1752 #3 0x4b89d90b in LircClient::Process () from /usr/lib/libmyth-0.21.so.0 #4 0x4b29d1b8 in ?? () from /usr/lib/libmythui-0.21.so.0 #5 0x46c8c4fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #6 0x46bdf8ee in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 5 (Thread 0xb61e8b90 (LWP 4634)): #0 0xb7f9c410 in __kernel_vsyscall () #1 0x46c90aa5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x4dbfdcc4 in QWaitCondition::wait () from /usr/lib/libqt-mt.so.3 #3 0x4b74e2e5 in MythContext::waitPrivRequest () from /usr/lib/libmyth-0.21.so.0 #4 0x08069065 in ?? () #5 0x46c8c4fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #6 0x46bdf8ee in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 4 (Thread 0xb6a74b90 (LWP 4628)): #0 0xb7f9c410 in __kernel_vsyscall () #1 0x46bd8311 in select () from /lib/tls/i686/cmov/libc.so.6 #2 0x4b20d53e in SSDP::run () from /usr/lib/libmythupnp-0.21.so.0 #3 0x4d8abe47 in QThreadInstance::start () from /usr/lib/libqt-mt.so.3 #4 0x46c8c4fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #5 0x46bdf8ee in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 3 (Thread 0xb7275b90 (LWP 4627)): #0 0xb7f9c410 in __kernel_vsyscall () #1 0x46c90dd2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x4d8ab3e1 in ?? () from /usr/lib/libqt-mt.so.3 #3 0xb7275228 in ?? () #4 0xb7275258 in ?? () #5 0xb72752a0 in ?? () #6 0xb7275258 in ?? () #7 0xb72752a0 in ?? () #8 0x0002a796 in ?? () #9 0x00000000 in ?? () Thread 2 (Thread 0xb7a76b90 (LWP 4626)): #0 0xb7f9c410 in __kernel_vsyscall () #1 0x46c90dd2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x4dbfdca4 in QWaitCondition::wait () from /usr/lib/libqt-mt.so.3 #3 0x4b21e2a7 in CEvent::WaitForEvent () from /usr/lib/libmythupnp-0.21.so.0 #4 0x4b21e99e in WorkerThread::run () from /usr/lib/libmythupnp-0.21.so.0 #5 0x4d8abe47 in QThreadInstance::start () from /usr/lib/libqt-mt.so.3 #6 0x46c8c4fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #7 0x46bdf8ee in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 1 (Thread 0xb7cf69e0 (LWP 4621)): #0 0xb7f9c410 in __kernel_vsyscall () #1 0x46bd7929 in ioctl () from /lib/tls/i686/cmov/libc.so.6 #2 0xb4998cf4 in ?? () from /usr/lib/dri/fglrx_dri.so #3 0x00000010 in ?? () #4 0x4008642a in ?? () #5 0xbfc99ad8 in ?? () #6 0xb4757577 in ?? () from /usr/lib/dri/fglrx_dri.so #7 0x00000001 in ?? () #8 0x46c53ff4 in ?? () from /lib/tls/i686/cmov/libc.so.6 #9 0x0000001a in ?? () #10 0x00000000 in ?? () (gdb) quit The program is running. Exit anyway? (y or n) Please answer y or n. The program is running. Exit anyway? (y or n) -- mythfrontend.real crashed with SIGSEGV https://bugs.launchpad.net/bugs/197174 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
