. Thread 18 (Thread 0x4aeaf460 (LWP 2053)): #0 0x409e0fe0 in ?? () No symbol table info available. #1 0x406c69b8 in ?? () No symbol table info available. #2 0x406c69b8 in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 17 (Thread 0x47a65460 (LWP 2030)): #0 0x409e00e0 in ?? () No symbol table info available. #1 0x409f3426 in ?? () No symbol table info available. #2 0x409f3426 in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 16 (Thread 0x4e25c460 (LWP 2088)): #0 0x409e00e0 in ?? () No symbol table info available. #1 0x409f3426 in ?? () No symbol table info available. #2 0x409f3426 in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 15 (Thread 0x4d966460 (LWP 2077)): #0 0x409e00e0 in ?? () No symbol table info available. #1 0x409f3426 in ?? () No symbol table info available. #2 0x409f3426 in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 14 (Thread 0x414d0460 (LWP 1948)): #0 0x41865fe4 in __libc_do_syscall () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #1 0x41863432 in do_futex_wait () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #2 0x418634a6 in sem_wait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #3 0x4138eab6 in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5V8.so.5 No symbol table info available. #4 0x4138eab6 in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5V8.so.5 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 13 (Thread 0x49050460 (LWP 2040)): #0 0x40f7de54 in poll () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. #2 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 12 (Thread 0x453ff460 (LWP 1953)): #0 0x40f7de54 in poll () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. #2 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 11 (Thread 0x44817460 (LWP 1945)): #0 0x40f7de54 in poll () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. #2 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 10 (Thread 0x48293460 (LWP 2031)): #0 0x409e00e0 in ?? () No symbol table info available. #1 0x409f3426 in ?? () No symbol table info available. #2 0x409f3426 in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 9 (Thread 0x44017460 (LWP 1936)): #0 0x409e0fe0 in ?? () No symbol table info available. #1 0x406c69b8 in ?? () No symbol table info available. #2 0x406c69b8 in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 8 (Thread 0x4696c460 (LWP 1973)): #0 0x40f7de54 in poll () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. #2 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 7 (Thread 0x4616c460 (LWP 1972)): #0 0x40f7de54 in poll () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. #2 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 6 (Thread 0x4b6af460 (LWP 2054)): #0 0x41865fe4 in __libc_do_syscall () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #1 0x41861d72 in pthread_cond_wait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #2 0x40f8f52a in pthread_cond_wait () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #3 0x40d320da in ?? () No symbol table info available. #4 0x40d320da in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 5 (Thread 0x433b9000 (LWP 1323)): #0 0x41865fe4 in __libc_do_syscall () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #1 0x41861d72 in pthread_cond_wait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #2 0x40f8f52a in pthread_cond_wait () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #3 0x40a835f0 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5 No symbol table info available. #4 0x40621148 in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5Quick.so.5 No symbol table info available. #5 0x40621148 in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5Quick.so.5 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 4 (Thread 0x4d074460 (LWP 2058)): #0 0x40f820c4 in select () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x40f820b8 in select () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #2 0x00dbcc2a in ?? () No symbol table info available. #3 0x00dbcc2a in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 3 (Thread 0x47265460 (LWP 2358)): #0 0x40f7de54 in poll () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. #2 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 2 (Thread 0x5049e460 (LWP 2357)): #0 0x40f7de54 in poll () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. #2 0x41d8fd8e in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) . Thread 1 (Thread 0x4beaf460 (LWP 2055)): #0 0x40486a10 in typeinfo for QQmlEnginePrivate::Deletable () from /usr/lib/arm-linux-gnueabihf/libQt5Qml.so.5 No symbol table info available. #1 0x41b32c78 in ApplicationImage::paint (this=0x194f940, painter=0x4beaec14) at application_image.cc:159 No locals. #2 0x405700b4 in QSGPainterNode::paint() () from /usr/lib/arm-linux-gnueabihf/libQt5Quick.so.5 No symbol table info available. #3 0x01ec0950 in ?? () No symbol table info available. #4 0x01ec0950 in ?? () No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?)