MythTV Version : v31-Pre-1653-g1186e57e51-dirty
MythTV Branch : (HEAD detached at 1186e57e51)
Network Protocol : 91
Library API : 31.20200101-1
QT Version : 5.9.5
Options compiled in:
 linux profile use_hidesyms using_alsa using_oss using_pulse using_pulseoutput using_backend using_bindings_perl using_bindings_python using_bindings_php using_dvb using_firewire using_frontend using_hdhomerun using_vbox using_ceton using_hdpvr using_ivtv using_libcrypto using_libdns_sd using_libfftw3 using_libxml2 using_mheg using_opengl using_egl using_qtwebkit using_qtscript using_qtdbus using_taglib using_v4l2 using_v4l2prime using_x11 using_libbluray_external using_xrandr using_profiletype using_systemd_notify using_systemd_journal using_drm using_bindings_perl using_bindings_python using_bindings_php using_freetype2 using_mythtranscode using_opengl using_opengles using_egl using_drm using_vaapi using_vdpau using_ffmpeg_threads using_mheg using_libass using_libxml2 using_libmp3lame
[New LWP 25375]
[New LWP 25376]
[New LWP 25377]
[New LWP 25381]
[New LWP 25378]
[New LWP 25380]
[New LWP 25379]
[New LWP 25382]
[New LWP 25385]
[New LWP 25389]
[New LWP 25391]
[New LWP 25390]

warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `mythpreviewgen --size 0x0 --chanid 1051 --starttime 20200105150000 --verbose ge'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fe29f05f361 in QScreen::virtualSiblings() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5

Thread 12 (Thread 0x7fe27963d700 (LWP 25390)):
#0  0x00007fe2a73889f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557fe2ec1f4c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x557fe2ec1ef8, cond=0x557fe2ec1f20) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe27963cc40, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 3, cond = 0x557fe2ec1f20, mutex = 0x557fe2ec1ef8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 1
#2  __pthread_cond_wait (cond=cond@entry=0x557fe2ec1f20, mutex=mutex@entry=0x557fe2ec1ef8) at pthread_cond_wait.c:655
No locals.
#3  0x00007fe2a46f4fee in thread_worker (v=0x557fe2ec1ef0) at libavutil/slicethread.c:78
        w = 0x557fe2ec1ef0
        ctx = 0x557fe2ec1dc0
#4  0x00007fe2a73826db in start_thread (arg=0x7fe27963d700) at pthread_create.c:463
        pd = 0x7fe27963d700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610675922688, -7555019852442472394, 140610675920320, 0, 94007756332784, 140737418169120, 7558130612870344758, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 11 (Thread 0x7fe278e3c700 (LWP 25391)):
#0  0x00007fe2a73889f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557fe2ec1fbc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x557fe2ec1f68, cond=0x557fe2ec1f90) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe278e3bc40, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 3, cond = 0x557fe2ec1f90, mutex = 0x557fe2ec1f68, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 1
#2  __pthread_cond_wait (cond=cond@entry=0x557fe2ec1f90, mutex=mutex@entry=0x557fe2ec1f68) at pthread_cond_wait.c:655
No locals.
#3  0x00007fe2a46f4fee in thread_worker (v=0x557fe2ec1f60) at libavutil/slicethread.c:78
        w = 0x557fe2ec1f60
        ctx = 0x557fe2ec1dc0
#4  0x00007fe2a73826db in start_thread (arg=0x7fe278e3c700) at pthread_create.c:463
        pd = 0x7fe278e3c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610667529984, -7555019852442472394, 140610667527616, 0, 94007756332896, 140737418169120, 7558127314872332342, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 10 (Thread 0x7fe279e3e700 (LWP 25389)):
#0  0x00007fe2a73889f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557fe2ec1edc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x557fe2ec1e88, cond=0x557fe2ec1eb0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe279e3dc40, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 3, cond = 0x557fe2ec1eb0, mutex = 0x557fe2ec1e88, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 1
#2  __pthread_cond_wait (cond=cond@entry=0x557fe2ec1eb0, mutex=mutex@entry=0x557fe2ec1e88) at pthread_cond_wait.c:655
No locals.
#3  0x00007fe2a46f4fee in thread_worker (v=0x557fe2ec1e80) at libavutil/slicethread.c:78
        w = 0x557fe2ec1e80
        ctx = 0x557fe2ec1dc0
#4  0x00007fe2a73826db in start_thread (arg=0x7fe279e3e700) at pthread_create.c:463
        pd = 0x7fe279e3e700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610684315392, -7555019852442472394, 140610684313024, 0, 94007756332672, 140737418169120, 7558129512821846070, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 9 (Thread 0x7fe27a63f700 (LWP 25385)):
#0  0x00007fe2a6afdbf9 in __GI___poll (fds=0x7fe26c005b40, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 1
#1  0x00007fe29c34b5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fe29c34b6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fe2a787d97f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007fe2a78229fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#5  0x00007fe2a764123a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#6  0x00007fe2a81007f0 in MThreadInternal::QThreadRun (this=0x7fe270011450) at mthread.cpp:81
No locals.
#7  0x00007fe2a80ffddc in MThread::run (this=0x7fe270013600) at mthread.cpp:324
No locals.
#8  0x00007fe2a81007d4 in MThreadInternal::run (this=0x7fe270011450) at mthread.cpp:79
No locals.
#9  0x00007fe2a764617d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#10 0x00007fe2a73826db in start_thread (arg=0x7fe27a63f700) at pthread_create.c:463
        pd = 0x7fe27a63f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610692708096, -7555019852442472394, 140610692705728, 0, 140610518455376, 140610709489840, 7558124014726836278, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#11 0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 8 (Thread 0x7fe27ae40700 (LWP 25382)):
#0  0x00007fe2a6afdbf9 in __GI___poll (fds=0x7fe268005390, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 1
#1  0x00007fe29c34b5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fe29c34b6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fe2a787d97f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007fe2a78229fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#5  0x00007fe2a764123a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#6  0x00007fe2a81007f0 in MThreadInternal::QThreadRun (this=0x7fe27000f390) at mthread.cpp:81
No locals.
#7  0x00007fe2a80ffddc in MThread::run (this=0x7fe270012ad0) at mthread.cpp:324
No locals.
#8  0x00007fe2a81007d4 in MThreadInternal::run (this=0x7fe27000f390) at mthread.cpp:79
No locals.
#9  0x00007fe2a764617d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#10 0x00007fe2a73826db in start_thread (arg=0x7fe27ae40700) at pthread_create.c:463
        pd = 0x7fe27ae40700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610701100800, -7555019852442472394, 140610701098432, 0, 140610518446992, 140610709489744, 7558122914678337590, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#11 0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 7 (Thread 0x7fe28a3fd700 (LWP 25379)):
#0  0x00007fe2a7388ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe28a3fcb00, expected=0, futex_word=0x557fe2e09240) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7fe28a3fcbc0, mutex=0x557fe2e091f0, cond=0x557fe2e09218) at pthread_cond_wait.c:533
        rt = {tv_sec = 29, tv_nsec = 999999833}
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe28a3fcb30, __canceltype = -488599016, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x557fe2e09218, mutex = 0x557fe2e091f0, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 0
#2  __pthread_cond_timedwait (cond=0x557fe2e09218, mutex=0x557fe2e091f0, abstime=0x7fe28a3fcbc0) at pthread_cond_wait.c:667
No locals.
#3  0x00007fe2a7647468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007fe2a764353d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#5  0x00007fe2a764617d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#6  0x00007fe2a73826db in start_thread (arg=0x7fe28a3fd700) at pthread_create.c:463
        pd = 0x7fe28a3fd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610958776064, -7555019852442472394, 140610958773696, 0, 94007755517088, 140737418173152, 7557665828689440822, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 6 (Thread 0x7fe288f92700 (LWP 25380)):
#0  0x00007fe2a7388ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe288f91af0, expected=0, futex_word=0x557fe2e35920) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
        __ret = -516
        oldtype = 1
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7fe288f91bb0, mutex=0x557fe2e358d0, cond=0x557fe2e358f8) at pthread_cond_wait.c:533
        rt = {tv_sec = 120, tv_nsec = 999490}
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe288f91b20, __canceltype = -488417032, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x557fe2e358f8, mutex = 0x557fe2e358d0, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 0
#2  __pthread_cond_timedwait (cond=0x557fe2e358f8, mutex=0x557fe2e358d0, abstime=0x7fe288f91bb0) at pthread_cond_wait.c:667
No locals.
#3  0x00007fe2a7647468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007fe2a8104233 in MPoolThread::run (this=0x557fe2df7eb0) at mthreadpool.cpp:124
        autodelete = false
        t = {m_timer = {t1 = 2857535, t2 = 385571146}, m_offset = 0}
        locker = {val = 94007755505361}
#5  0x00007fe2a81007d4 in MThreadInternal::run (this=0x557fe2e40560) at mthread.cpp:79
No locals.
#6  0x00007fe2a764617d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#7  0x00007fe2a73826db in start_thread (arg=0x7fe288f92700) at pthread_create.c:463
        pd = 0x7fe288f92700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610937366272, -7555019852442472394, 140610937363904, 0, 94007755801952, 140737418173936, 7557669691475652662, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#8  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 5 (Thread 0x7fe28abfe700 (LWP 25378)):
#0  0x00007fe2a7388ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe28abfdb00, expected=0, futex_word=0x557fe2df89c0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
        __ret = -516
        oldtype = 1
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7fe28abfdbc0, mutex=0x557fe2df8970, cond=0x557fe2df8998) at pthread_cond_wait.c:533
        rt = {tv_sec = 0, tv_nsec = 99999287}
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe28abfdb30, __canceltype = -488666728, __prev = 0x0}
        cbuffer = {wseq = 286, cond = 0x557fe2df8998, mutex = 0x557fe2df8970, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 143
#2  __pthread_cond_timedwait (cond=0x557fe2df8998, mutex=0x557fe2df8970, abstime=0x7fe28abfdbc0) at pthread_cond_wait.c:667
No locals.
#3  0x00007fe2a7647468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007fe2a81c5d10 in LoggerThread::run (this=0x557fe2dfbe20) at logging.cpp:296
        item = 0x557fe2ece240
        __FUNCTION__ = "run"
        dieNow = false
        qLock = {val = 140611462934009}
#5  0x00007fe2a81007d4 in MThreadInternal::run (this=0x557fe2dfb410) at mthread.cpp:79
No locals.
#6  0x00007fe2a764617d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#7  0x00007fe2a73826db in start_thread (arg=0x7fe28abfe700) at pthread_create.c:463
        pd = 0x7fe28abfe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610967168768, -7555019852442472394, 140610967166400, 0, 94007755518992, 140737418174800, 7557664728640942134, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#8  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 4 (Thread 0x7fe27b641700 (LWP 25381)):
#0  0x00007fe2a7388ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe27b640af0, expected=0, futex_word=0x7fe274005780) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
        __ret = -516
        oldtype = 1
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7fe27b640bb0, mutex=0x7fe274005730, cond=0x7fe274005758) at pthread_cond_wait.c:533
        rt = {tv_sec = 120, tv_nsec = 999679}
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe27b640b20, __canceltype = 1946179416, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x7fe274005758, mutex = 0x7fe274005730, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 0
#2  __pthread_cond_timedwait (cond=0x7fe274005758, mutex=0x7fe274005730, abstime=0x7fe27b640bb0) at pthread_cond_wait.c:667
No locals.
#3  0x00007fe2a7647468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007fe2a8104233 in MPoolThread::run (this=0x7fe274005f50) at mthreadpool.cpp:124
        autodelete = true
        t = {m_timer = {t1 = 2857534, t2 = 191446570}, m_offset = 0}
        locker = {val = 140610585517937}
#5  0x00007fe2a81007d4 in MThreadInternal::run (this=0x7fe274005f10) at mthread.cpp:79
No locals.
#6  0x00007fe2a764617d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#7  0x00007fe2a73826db in start_thread (arg=0x7fe27b641700) at pthread_create.c:463
        pd = 0x7fe27b641700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610709493504, -7555019852442472394, 140610709491136, 0, 140610585517840, 140610937362912, 7558126152546807862, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#8  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 3 (Thread 0x7fe28b3ff700 (LWP 25377)):
#0  0x00007fe2a7388ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe28b3feaf0, expected=0, futex_word=0x557fe2dd5890) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
        __ret = -516
        oldtype = 1
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7fe28b3febb0, mutex=0x557fe2dd5840, cond=0x557fe2dd5868) at pthread_cond_wait.c:533
        rt = {tv_sec = 0, tv_nsec = 89999301}
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe28b3feb20, __canceltype = -488810392, __prev = 0x0}
        cbuffer = {wseq = 326, cond = 0x557fe2dd5868, mutex = 0x557fe2dd5840, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        seq = 163
#2  __pthread_cond_timedwait (cond=0x557fe2dd5868, mutex=0x557fe2dd5840, abstime=0x7fe28b3febb0) at pthread_cond_wait.c:667
No locals.
#3  0x00007fe2a7647468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007fe2a81d2d0d in LogForwardThread::run (this=0x557fe2dfd180) at loggingserver.cpp:720
        lock = {val = 140611462934153}
        processed = 7
        loggers = {<QListSpecialMethods<LoggerBase*>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x0}, d = 0x0}}
#5  0x00007fe2a81007d4 in MThreadInternal::run (this=0x557fe2dfd280) at mthread.cpp:79
No locals.
#6  0x00007fe2a764617d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#7  0x00007fe2a73826db in start_thread (arg=0x7fe28b3ff700) at pthread_create.c:463
        pd = 0x7fe28b3ff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610975561472, -7555019852442472394, 140610975559104, 0, 94007755526784, 140737418174640, 7557668026638954550, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#8  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 2 (Thread 0x7fe28bf17700 (LWP 25376)):
#0  0x00007fe2a73889f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fe29a8a1110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x557fe2dc3b90, cond=0x7fe29a8a10e8) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7fe2a7388690 <__condvar_cleanup_waiting>, __arg = 0x7fe28bf16be0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x7fe29a8a10e8, mutex = 0x557fe2dc3b90, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 0
#2  __pthread_cond_wait (cond=0x7fe29a8a10e8, mutex=0x557fe2dc3b90) at pthread_cond_wait.c:655
No locals.
#3  0x00007fe2a70a986c in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#4  0x00007fe299be20a7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
No symbol table info available.
#5  0x00007fe299be21e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
No symbol table info available.
#6  0x00007fe2a70af66f in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#7  0x00007fe2a73826db in start_thread (arg=0x7fe28bf17700) at pthread_create.c:463
        pd = 0x7fe28bf17700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140610987194112, -7555019852442472394, 140610987191744, 0, 94007755291632, 140737418175232, 7557667558487519286, 7557712013869215798}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#8  0x00007fe2a6b0a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 1 (Thread 0x7fe2a9533940 (LWP 25375)):
#0  0x00007fe29f05f361 in QScreen::virtualSiblings() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#1  0x00007fe29f05f614 in QScreen::virtualGeometry() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#2  0x00007fe29f05f6e9 in QScreen::virtualSize() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#3  0x00007fe2a3e9596e in MythDisplay::InitScreenBounds (this=0x557fe2e40d80) at mythdisplay.cpp:471
        screens = {<QListSpecialMethods<QScreen*>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x7fe2a79147c0 <QListData::shared_null>}, d = 0x7fe2a79147c0 <QListData::shared_null>}}
        __FUNCTION__ = "InitScreenBounds"
        primary = 0x0
        numScreens = 0
        dim = {wd = -1483651120, ht = 32738}
#4  0x00007fe2a3e946b0 in MythDisplay::Initialise (this=0x557fe2e40d80) at mythdisplay.cpp:388
        __FUNCTION__ = "Initialise"
        pixelwidth = 0
        pixelheight = 0
        mmwidth = 0
        mmheight = 0
        refreshrate = 0
        aspectratio = 0
#5  0x00007fe2a3ed242f in MythDisplayDRM::MythDisplayDRM (this=0x557fe2e40d80) at platforms/mythdisplaydrm.cpp:10
No locals.
#6  0x00007fe2a3e90d56 in MythDisplay::AcquireRelease (Acquire=true) at mythdisplay.cpp:89
        s_lock = {<QBasicMutex> = {d_ptr = {_q_value = {_M_b = {_M_p = 0x557fe2ebc450}}}}, <No data fields>}
        s_display = 0x0
        locker = {val = 140611392330705}
#7  0x00007fe2a8b4a68e in VideoColourSpace::VideoColourSpace (this=0x557fe2e91dc8, Parent=0x0) at videocolourspace.cpp:86
        display = 0x7ffffbd111a0
        edid = @0x7fe2a869a034: {m_valid = 144, m_data = {d = 0x8247c894810ec83}, m_size = 607422792, m_minorVersion = 72 'H', m_displaySize = {wd = -947304440, ht = -352792}, m_displayAspect = 1.9182245049151252e-269, m_serialNumbers = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0xfffffd56e8c78948}, d = 0xfffffd56e8c78948}}, <No data fields>}, m_gamma = 408650.25, m_sRGB = 139, m_primaries = {primaries = {{6.16571324e-43, -nan(0x7fb900)}, {-2.41944931e-33, -8.40725234e+24}, {-nan(0x7e5c60), -7.25762279e-27}}, whitepoint = {-1050.27344, 1.6780928e+12}}, m_physicalAddress = 33608, m_latencies = 236, m_interLatencies = 48, m_audioLatency = {612141384, 1955153944}, m_videoLatency = {-1991765980, 1678255188}}
#8  0x00007fe2a8b14831 in MythVideoOutput::MythVideoOutput (this=0x557fe2e91cb0) at mythvideoout.cpp:262
No locals.
#9  0x00007fe2a8b1ae6c in MythVideoOutputNull::MythVideoOutputNull (this=0x557fe2e91cb0) at mythvideooutnull.cpp:51
No locals.
#10 0x00007fe2a8b13c65 in MythVideoOutput::Create (Decoder=..., CodecID=kCodec_MPEG2, PiPState=kPIPOff, VideoDim=..., VideoDispDim=..., VideoAspect=1.77777779, ParentWidget=0x0, EmbedRect=..., FrameRate=29.9700298, PlayerFlags=196864, Codec=..., ReferenceFrames=2) at mythvideoout.cpp:110
        index = 0
        vo = 0x0
        renderers = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x557fe2ed0690}, d = 0x557fe2ed0690}}, <No data fields>}
        __FUNCTION__ = "Create"
        renderer = {static null = {<No data fields>}, d = 0x557fe2e993b0}
        vprof = 0x557fe2e8e1f0
#11 0x00007fe2a8a2bb2b in MythPlayer::InitVideo (this=0x557fe2e4cec0) at mythplayer.cpp:381
        pipState = kPIPOff
        __FUNCTION__ = "InitVideo"
#12 0x00007fe2a8a46857 in MythPlayer::GetScreenGrabAtFrame (this=0x557fe2e4cec0, FrameNum=35964, Absolute=false, BufferSize=@0x7ffffbd120e8: 0, FrameWidth=@0x7ffffbd120e0: 0, FrameHeight=@0x7ffffbd120e4: 0, AspectRatio=@0x7ffffbd120dc: 0) at mythplayer.cpp:4447
        __FUNCTION__ = "GetScreenGrabAtFrame"
        dummy = 140611435365101
        tries = 32767
        frame = 0x8
        result = 0x0
        copyCtx = {_vptr.MythAVCopy = 0x7ffffbd11510, d = 0x74}
        retbuf = {data = {0x557fe2e40cb0 "\240U.\251\342\177", 0xffffffff <error: Cannot access memory at address 0xffffffff>, 0x17 <error: Cannot access memory at address 0x17>, 0x7fe2a76ae8ac "Hc\213\214", 0x7fe2a79126e0 <QArrayData::shared_null> "\377\377\377\377", 0x19129995054f6300 <error: Cannot access memory at address 0x19129995054f6300>, 0x557fe2e47820 "", 0x7ffffbd11740 "\211"}, linesize = {-70182528, 32767, 32, 0, -70182528, 3, 7, 0}, extended_data = 0x30, width = -489017320, height = 21887, nb_samples = 80, format = 0, key_frame = -128, pict_type = 4294967295, sample_aspect_ratio = {num = 0, den = 0}, pts = 206158430211, pkt_pts = 0, pkt_dts = 0, coded_picture_number = 0, display_picture_number = 0, quality = 124, opaque = 0x5b0000006e, error = {511101108348, 390842024046, 32, 140611438857280, 32, 94007755836592, 1, 140737418172800}, repeat_pict = -1498938643, interlaced_frame = 32738, top_field_first = -70182528, palette_has_changed = 32767, reordered_opaque = 140611435365101, sample_rate = -488338208, channel_layout = 94007755836600, buf = {0x20, 0x7fe2a76495e1 <qCalculateGrowingBlockSize(unsigned long, unsigned long, unsigned long)+17>, 0x18, 0x7fe2a937c754 <_dl_name_match_p+84>, 0x8, 0x7fe2a9572a10, 0x3, 0x7fe2a9375f5f <do_lookup_x+3359>}, extended_buf = 0x7fe2a9572f10, nb_extended_buf = 32, side_data = 0x300000000, nb_side_data = -1487122488, flags = 32738, color_range = 24989284, color_primaries = AVCOL_PRI_RESERVED0, color_trc = 2823934887, colorspace = 32738, chroma_location = 2823680800, best_effort_timestamp = 140611447016924, pkt_pos = 140611480395776, pkt_duration = 206158430208, metadata = 0x7ffffbd117d0, decode_error_flags = -1471032840, channels = 32738, atsc_cc_buf = "\236p\321\001\000\000\000\000\334iR\250\342\177\000\000\350\367P\250\342\177\000\000\210@M\250\342\177\000\000\211", '\000' <repeats 11 times>, "\342\177\000\000\020\030\321\373\377\177\000\000\003\000\000\000\000\000\000\000\000\030\321\373\377\177\000\000\000\000\000\000\377\177\000\000\360\061T\251\342\177\000\000\000\000\000\000\000\000\000\000\211\000\000\000\000\000\000\000\001\000\000\000\342\177\000\000\004\000\000\000\000\000\000\000T\307\067\251\342\177\000\000X#W\251\342\177\000\000\020*W\251\342\177\000\000\003\000\000\000\000\000\000\000\rܯ\246\342\177\000\000\020/W\251\342\177\000\000\rܯ\246\001\000\000\000\340\223\004\000\000\000\000\000@\030\321\373\377\177\000\000P\346\342\342\177U\000\000;\230"..., atsc_cc_len = 5, scte_cc_buf = '\000' <repeats 12 times>, "\001\000\000\000\000\000\000\000\000 W\251\342\177\000\000\221>S\250\342\177\000\000\241O$\211\001\000\000\000@\033\321\373\377\177\000\000P\033\321\373\377\177\000\000X#W\251\342\177\000\000\000\000\000\000\000\000\000\000\300\033\321\373\377\177\000\000`J\343\342\177U\000\000\377\377\377\377\000\000\000\000\240(\343\342\177U\000\000H\244P\250\342\177\000\000\000 W\251\342\177\000\000\230\037\321\373\377\177\000\000\001\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000h \321\373\377\177\000\000\001\000\000\000\000\000\000\000î7\251\342\177\000\000\005\000\000\000\000\000\000\000\250\263/\251\342\177\000\000\240 \321\373\377\177\000\000\001\000\000\000\000\000\000\000"..., scte_cc_len = 0, pkt_size = 0, qscale_table = 0x0, qstride = 0, qscale_type = 0, qp_table_buf = 0x0, hw_frames_ctx = 0x0, opaque_ref = 0x0, crop_top = 0, crop_bottom = 0, crop_left = 0, crop_right = 0, private_ref = 0x0}
#13 0x00007fe2a8a461c8 in MythPlayer::GetScreenGrab (this=0x557fe2e4cec0, SecondsIn=1200, BufferSize=@0x7ffffbd120e8: 0, FrameWidth=@0x7ffffbd120e0: 0, FrameHeight=@0x7ffffbd120e4: 0, AspectRatio=@0x7ffffbd120dc: 0) at mythplayer.cpp:4397
        frameNum = 35964
#14 0x00007fe2a879d7ef in PreviewGenerator::GetScreenGrab (pginfo=..., filename=..., seektime=1200, time_in_secs=true, bufferlen=@0x7ffffbd120e8: 0, video_width=@0x7ffffbd120e0: 0, video_height=@0x7ffffbd120e4: 0, video_aspect=@0x7ffffbd120dc: 0) at previewgenerator.cpp:846
        retbuf = 0x0
        __FUNCTION__ = "GetScreenGrab"
        rbuf = 0x557fe2e05500
        ctx = 0x557fe2da4650
#15 0x00007fe2a879c13e in PreviewGenerator::LocalPreviewRun (this=0x557fe2e41750) at previewgenerator.cpp:692
        aspect = 0
        captime = 1200
        dt = {d = {d = 0x16f766f4b521f, data = {status = 31, msecs = 1578240002898}}}
        __FUNCTION__ = "LocalPreviewRun"
        width = 0
        height = 0
        sz = 0
        data = 0x0
        outname = {static null = {<No data fields>}, d = 0x16f7638510020}
        format = {static null = {<No data fields>}, d = 0x557fe2df6a50}
        dw = 0
        dh = 0
        ok = false
#16 0x00007fe2a8795df3 in PreviewGenerator::RunReal (this=0x557fe2e41750) at previewgenerator.cpp:144
        msg = {static null = {<No data fields>}, d = 0x7fe2a79126e0 <QArrayData::shared_null>}
        tm = {mds = 36002897}
        ok = false
        is_local = true
        __FUNCTION__ = "RunReal"
        locker = {val = 94007755806560}
#17 0x0000557fe0f51a4f in preview_helper (chanid=1051, starttime=..., previewFrameNumber=0, previewSeconds=0, previewSize=..., infile=..., outfile=...) at main.cpp:126
        __FUNCTION__ = "preview_helper"
        pginfo = 0x557fe2df5800
        previewgen = 0x557fe2e41750
        ok = false
#18 0x0000557fe0f52627 in main (argc=14, argv=0x7ffffbd12518) at main.cpp:212
        cmdline = {<MythCommandLineParser> = {_vptr.MythCommandLineParser = 0x557fe1156a40 <vtable for MythPreviewGeneratorCommandLineParser+16>, m_appname = {static null = {<No data fields>}, d = 0x557fe2debd50}, m_optionedArgs = {d = 0x557fe2dec2d0}, m_namedArgs = {d = 0x557fe2dec210}, m_passthroughActive = false, m_overridesImported = false, m_verbose = false}, <No data fields>}
        a = <incomplete type>
        retval = 0
        callCleanup = {m_cleanFunction = 0x557fe0f50f8a <(anonymous namespace)::cleanup()>}
        signallist = {<QListSpecialMethods<int>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x557fe2dfd860}, d = 0x557fe2dfd860}}
        __FUNCTION__ = "main"
        ret = 0
