Discover on my computer is in a seemingly unrecoverable state of freeze/hang after being launched; i.e. every time I launch Discover it freezes. Rebooting doesn't help. This started to happen after Discover crashed while I was configuring a Snap. After choosing 'Relaunch application', Discover would freeze. A re-login fixed this once, but after reproducing the crash a second time the freeze is always there. Backtrace of the freeze: GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1 Copyright (C) 2016 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". (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) attach 11718 Attaching to process 11718 [New LWP 11719] [New LWP 11720] [New LWP 11721] [New LWP 11722] [New LWP 11723] [New LWP 11724] [New LWP 11725] [New LWP 11731] [New LWP 11733] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". 0x00007fb894ff22dd in write () at ../sysdeps/unix/syscall-template.S:84 84 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bact[Kktrace full #0 0x00007fb894ff22dd in write () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb894f73bff in _IO_new_file_write (f=0x7fb8952c0540 <_IO_2_1_stderr_>, data=0x4493fca0, n=112) at fileops.c:1263 count = <optimized out> to_do = 112 #2 0x00007fb894f7438a in _IO_new_file_xsputn (to_do=112, data=0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", fp=0x7fb8952c0540 <_IO_2_1_stderr_>) at fileops.c:518 count = <optimized out> block_size = <optimized out> do_write = 112 s = 0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" to_do = 112 must_flush = <optimized out> count = <optimized out> n = 112 data = <optimized out> f = 0x7fb8952c0540 <_IO_2_1_stderr_> s = <optimized out> to_do = 112 #3 0x00007fb894f7438a in _IO_new_file_xsputn (f=0x7fb8952c0540 <_IO_2_1_stderr_>, data=<optimized out>, n=112) at fileops.c:1342 block_size = <optimized out> do_write = 112 s = 0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" to_do = 112 must_flush = <optimized out> count = <optimized out> n = 112 data = <optimized out> f = 0x7fb8952c0540 <_IO_2_1_stderr_> s = <optimized out> to_do = 112 #4 0x00007fb894f690c8 in __GI__IO_fputs (str=str@entry=0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", fp=fp@entry=0x7fb8952c0540 <_IO_2_1_stderr_>) at iofputs.c:38 _IO_acquire_lock_file = 0x7fb8952c0540 <_IO_2_1_stderr_> len = 112 result = -1 #5 0x00007fb88fc3c41f in g_log_default_handler (string=0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", stream=0x7fb8952c0540 <_IO_2_1_stderr_>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:367 level_prefix = "CRITICAL **\000\270\177\000\000\060\361\367\224\270\177\000\000\360\364\367\224\270\177\000\000 \301\261\222\377\177\000\000`\301\261\222\377\177\000\000\000\000\000\000\000\000\000\000`\301", <incomplete sequence \357> string = 0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" gstring = 0x74fcae0 stream = 0x7fb8952c0540 <_IO_2_1_stderr_> domains = <optimized out> #6 0x00007fb88fc3c41f in g_log_default_handler (log_domain=log_domain@entry=0x7fb88fc7d7ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, message=message@entry=0x4492dc00 "g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed", unused_data=unused_data@entry=0x0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1507 level_prefix = "CRITICAL **\000\270\177\000\000\060\361\367\224\270\177\000\000\360\364\367\224\270\177\000\000 \301\261\222\377\177\000\000`\301\261\222\377\177\000\000\000\000\000\000\000\000\000\000`\301", <incomplete sequence \357> string = 0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" gstring = 0x74fcae0 stream = 0x7fb8952c0540 <_IO_2_1_stderr_> domains = <optimized out> #7 0x00007fb88fc3c9a4 in g_logv (log_domain=0x7fb88fc7d7ee "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7fff92b1c240) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1059 domain = 0x0 data = 0x0 depth = 1 log_func = 0x7fb88fc3c220 <g_log_default_handler> domain_fatal_mask = <optimized out> masquerade_fatal = 0 test_level = G_LOG_LEVEL_CRITICAL was_fatal = <optimized out> was_recursion = <optimized out> msg = 0x4492dc00 "g_byte_array_remove_rangePython Exception <class 'gdb.error'> Attempt to dereference a generic pointer.: : assertion 'index_ + length <= array->len' failed" msg_alloc = 0x4492dc00 "g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed" i = 3 #8 0x00007fb88fc3cbcf in g_log (log_domain=log_domain@entry=0x7fb88fc7d7ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7fb88fc87374 "%s: assertion '%s' failed") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1119 #9 0x00007fb88fc3cc09 in g_return_if_fail_warning (log_domain=log_domain@entry=0x7fb88fc7d7ee "GLib", pretty_function=pretty_function@entry=0x7fb88fc7df70 <__func__.5554> "g_byte_array_remove_range", expression=expression@entry=0x7fb88fc7de67 "index_ + length <= array->len") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1134 #10 0x00007fb88fc0a8ca in g_byte_array_remove_range (array=<optimized out>, index_=<optimized out>, length=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/garray.c:1817 __func__ = "g_byte_array_remove_range" #11 0x00007fb8594a777c in () at /usr/lib/x86_64-linux-gnu/libsnapd-glib.so.1 #12 0x00007fb86403d901 in socket_source_dispatch (source=0x5547050, callback=0x7fb8594a7570, user_data=0x4c333a0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./gio/gsocket.c:3543 func = 0x7fb8594a7570 socket_source = 0x5547050 socket = 0x51fca60 [GSocket] timeout = <optimized out> events = 1 ret = <optimized out> #13 0x00007fb88fc3604a in g_main_context_dispatch (context=0x7fb8800016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3154 dispatch = 0x7fb86403d8b0 <socket_source_dispatch> prev_source = 0x0 was_in_call = 0 user_data = 0x4c333a0 callback = 0x7fb8594a7570 cb_funcs = <optimized out> cb_data = 0x523d9b0 need_destroy = <optimized out> source = 0x5547050 current = 0x252a610 i = 1 #14 0x00007fb88fc3604a in g_main_context_dispatch (context=context@entry=0x7fb8800016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3769 #15 0x00007fb88fc363f0 in g_main_context_iterate (context=context@entry=0x7fb8800016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3840 max_priority = 0 timeout = 0 some_ready = 1 nfds = <optimized out> allocated_nfds = 6 fds = 0x7510bc0 #16 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb8800016f0, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 retval = <optimized out> #17 0x00007fb895c1709f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x2518800, flags=...) at kernel/qeventdispatcher_glib.cpp:423 d = 0x2516670 canWait = true savedFlags = {i = 0} result = <optimized out> #18 0x00007fb88989f9a1 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x2518800, flags=...) at qeventdispatcher_glib.cpp:69 didSendEvents = <optimized out> #19 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff92b1c600, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 d = 0x2cc19b0 locker = {val = 38587104} ref = {d = 0x2cc19b0, locker = @0x7fff92b1c580, exceptionCaught = true} #20 0x00007fb895bc76c4 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1336 threadData = 0x24cc9f0 eventLoop = {<QObject> = {_vptr.QObject = 0x7fb8960413c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fb895d49880 <qt_meta_stringdata_QObject>, data = 0x7fb895d49760 <qt_meta_data_QObject>, static_metacall = 0x7fb895bf50c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x2cc19b0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7fb895d4c640 <qt_meta_stringdata_Qt>, data = 0x7fb895d499a0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7fb896039a40 <QObject::staticMetaObject>, stringdata = 0x7fb895d44360 <qt_meta_stringdata_QEventLoop>, data = 0x7fb895d44300 <qt_meta_data_QEventLoop>, static_metacall = 0x7fb895bbe2f0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} returnCode = <optimized out> #21 0x00007fb896a04f8c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1762 #22 0x00007fb8972192f5 in QApplication::exec() () at kernel/qapplication.cpp:2901 #23 0x000000000041319f in main(int, char**) (argc=1, argv=<optimized out>) at /workspace/build/discover/main.cpp:156 app = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7fb8978f3a10 <vtable for QApplication+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fb895d49880 <qt_meta_stringdata_QObject>, data = 0x7fb895d49760 <qt_meta_data_QObject>, static_metacall = 0x7fb895bf50c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x24ccf80}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7fb895d4c640 <qt_meta_stringdata_Qt>, data = 0x7fb895d499a0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7fb896039a40 <QObject::staticMetaObject>, stringdata = 0x7fb895d449a0 <qt_meta_stringdata_QCoreApplication>, data = 0x7fb895d44880 <qt_meta_data_QCoreApplication>, static_metacall = 0x7fb895bc1d50 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fff92b1c6e0}, static staticMetaObject = {d = {superdata = 0x7fb896041560 <QCoreApplication::staticMetaObject>, stringdata = 0x7fb896dc30c0 <qt_meta_stringdata_QGuiApplication>, data = 0x7fb896dc2e40 <qt_meta_data_QGuiApplication>, static_metacall = 0x7fb896a105b0 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7fb8970a9ec0 <QGuiApplication::staticMetaObject>, stringdata = 0x7fb897599380 <qt_meta_stringdata_QApplication>, data = 0x7fb897599200 <qt_meta_data_QApplication>, static_metacall = 0x7fb89721e480 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} about = {d = 0x258e670} mainWindow = 0x25c0140 (gdb) info registers rax 0x70 112 rbx 0x70 112 rcx 0x7fb894ff22dd 140430750458589 rdx 0x70 112 rsi 0x4493fca0 1150549152 rdi 0x2 2 rbp 0x4493fca0 0x4493fca0 rsp 0x7fff92b1c030 0x7fff92b1c030 r8 0x7fb899d258c0 140430831409344 r9 0x11 17 r10 0x20 32 r11 0x293 659 r12 0x70 112 r13 0x1 1 r14 0x7fb8952c0540 140430753400128 r15 0x3 3 rip 0x7fb894ff22dd 0x7fb894ff22dd <write+45> eflags 0x293 [ CF AF SF IF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 (gdb) x/16i $pc => 0x7fb894ff22dd <write+45>: mov (%rsp),%rdi 0x7fb894ff22e1 <write+49>: mov %rax,%rdx 0x7fb894ff22e4 <write+52>: callq 0x7fb895010130 <__libc_disable_asynccancel> 0x7fb894ff22e9 <write+57>: mov %rdx,%rax 0x7fb894ff22ec <write+60>: add $0x8,%rsp 0x7fb894ff22f0 <write+64>: cmp $0xfffffffffffff001,%rax 0x7fb894ff22f6 <write+70>: jae 0x7fb894ff22f9 <write+73> 0x7fb894ff22f8 <write+72>: retq 0x7fb894ff22f9 <write+73>: mov 0x2ccb78(%rip),%rcx # 0x7fb8952bee78 0x7fb894ff2300 <write+80>: neg %eax 0x7fb894ff2302 <write+82>: mov %eax,%fs:(%rcx) 0x7fb894ff2305 <write+85>: or $0xffffffffffffffff,%rax 0x7fb894ff2309 <write+89>: retq 0x7fb894ff230a: nopw 0x0(%rax,%rax,1) 0x7fb894ff2310 <access>: mov $0x15,%eax 0x7fb894ff2315 <access+5>: syscall (gdb) thread apply all backtrace Thread 10 (Thread 0x7fb84a842700 (LWP 11733)): #0 0x00007fb894ffc4d9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:92 #2 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:107 #3 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:221 #4 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (timeout=-1, n=1, u=...) at thread/qsemaphore.cpp:264 #5 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (this=this@entry=0x7fb84a840140, n=n@entry=1) at thread/qsemaphore.cpp:328 #6 0x00007fb895bed1b6 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x29af370, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3739 #7 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x29af370, m=m@entry=0x7fb8931c54c0 <QHttpThreadDelegate::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #8 0x00007fb892f6ecb3 in QHttpThreadDelegate::encrypted() (this=this@entry=0x29af370) at .moc/moc_qhttpthreaddelegate_p.cpp:511 #9 0x00007fb892ece378 in QHttpThreadDelegate::encryptedSlot() (this=0x29af370) at access/qhttpthreaddelegate.cpp:694 #10 0x00007fb892f6fd3d in QHttpThreadDelegate::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qhttpthreaddelegate_p.cpp:246 #11 0x00007fb895becf79 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7fb83c004260, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #12 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=<optimized out>, m=m@entry=0x7fb8931c5300 <QHttpNetworkReply::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #13 0x00007fb892f6ddb0 in QHttpNetworkReply::encrypted() (this=<optimized out>) at .moc/moc_qhttpnetworkreply_p.cpp:338 #14 0x00007fb892ec3c02 in QHttpNetworkConnectionChannel::_q_encrypted() (this=0x7fb83c003588) at access/qhttpnetworkconnectionchannel.cpp:1234 #15 0x00007fb892ec44cd in QHttpNetworkConnectionChannel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qhttpnetworkconnectionchannel_p.cpp:132 #16 0x00007fb895becf79 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7fb83c005f10, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #17 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7fb83c005f10, m=m@entry=0x7fb8931c43c0 <QSslSocket::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #18 0x00007fb892f44270 in QSslSocket::encrypted() (this=this@entry=0x7fb83c005f10) at .moc/moc_qsslsocket.cpp:301 #19 0x00007fb892f69d77 in QSslSocketBackendPrivate::continueHandshake() (this=0x7fb83c006700) at ssl/qsslsocket_opensslpre11.cpp:413 #20 0x00007fb892f660db in QSslSocketBackendPrivate::startHandshake() (this=this@entry=0x7fb83c006700) at ssl/qsslsocket_openssl.cpp:1018 #21 0x00007fb892f66ac6 in QSslSocketBackendPrivate::transmit() (this=0x7fb83c006700) at ssl/qsslsocket_openssl.cpp:730 #22 0x00007fb892f498d1 in QSslSocket::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qsslsocket.cpp:180 #23 0x00007fb895becf79 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7fb83c004660, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #24 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7fb83c004660, m=m@entry=0x7fb89603e880 <QIODevice::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #25 0x00007fb895af9250 in QIODevice::readyRead() (this=this@entry=0x7fb83c004660) at .moc/moc_qiodevice.cpp:185 #26 0x00007fb892f14973 in QAbstractSocketPrivate::emitReadyRead(int) (this=this@entry=0x7fb83c007070, channel=channel@entry=0) at socket/qabstractsocket.cpp:1307 #27 0x00007fb892f14a2c in QAbstractSocketPrivate::canReadNotification() (this=0x7fb83c007070) at socket/qabstractsocket.cpp:734 #28 0x00007fb892f28371 in QReadNotifier::event(QEvent*) (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1274 #29 0x00007fb89721939c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x7fb83c009120, e=0x7fb84a841ad0) at kernel/qapplication.cpp:3727 #30 0x00007fb897220ab0 in QApplication::notify(QObject*, QEvent*) (this=0x7fff92b1c6e0, receiver=0x7fb83c009120, e=0x7fb84a841ad0) at kernel/qapplication.cpp:3486 #31 0x00007fb895bc0228 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x7fb83c009120, event=event@entry=0x7fb84a841ad0) at kernel/qcoreapplication.cpp:1048 #32 0x00007fb895c17d1d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (event=0x7fb84a841ad0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234 #33 0x00007fb895c17d1d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (source=0x7fb83c002e00) at kernel/qeventdispatcher_glib.cpp:106 #34 0x00007fb88fc36197 in g_main_context_dispatch (context=0x7fb83c000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3154 #35 0x00007fb88fc36197 in g_main_context_dispatch (context=context@entry=0x7fb83c000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3769 #36 0x00007fb88fc363f0 in g_main_context_iterate (context=context@entry=0x7fb83c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3840 #37 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb83c000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #38 0x00007fb895c170bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fb83c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #39 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fb84a841cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #40 0x00007fb8959f35e4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525 #41 0x00007fb8959fe727 in QThreadPrivate::start(void*) (arg=0x298de40) at thread/qthread_unix.cpp:367 #42 0x00007fb891a9b6ba in start_thread (arg=0x7fb84a842700) at pthread_create.c:333 #43 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 9 (Thread 0x7fb84bfff700 (LWP 11731)): #0 0x00007fb894ffc4d9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:92 #2 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:107 #3 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:221 #4 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (timeout=-1, n=1, u=...) at thread/qsemaphore.cpp:264 #5 0x00007fb8959f1fa4 in QSemaphore::acquire(int) (this=this@entry=0x7fb84bffd140, n=n@entry=1) at thread/qsemaphore.cpp:328 #6 0x00007fb895bed1b6 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x5540a30, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3739 #7 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x5540a30, m=m@entry=0x7fb8931c54c0 <QHttpThreadDelegate::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #8 0x00007fb892f6ecb3 in QHttpThreadDelegate::encrypted() (this=this@entry=0x5540a30) at .moc/moc_qhttpthreaddelegate_p.cpp:511 #9 0x00007fb892ece378 in QHttpThreadDelegate::encryptedSlot() (this=0x5540a30) at access/qhttpthreaddelegate.cpp:694 #10 0x00007fb892f6fd3d in QHttpThreadDelegate::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qhttpthreaddelegate_p.cpp:246 #11 0x00007fb895becf79 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7fb8400081e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #12 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=<optimized out>, m=m@entry=0x7fb8931c5300 <QHttpNetworkReply::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #13 0x00007fb892f6ddb0 in QHttpNetworkReply::encrypted() (this=<optimized out>) at .moc/moc_qhttpnetworkreply_p.cpp:338 #14 0x00007fb892ec3c02 in QHttpNetworkConnectionChannel::_q_encrypted() (this=0x7fb840007778) at access/qhttpnetworkconnectionchannel.cpp:1234 #15 0x00007fb892ec44cd in QHttpNetworkConnectionChannel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qhttpnetworkconnectionchannel_p.cpp:132 #16 0x00007fb895becf79 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7fb840008530, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #17 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7fb840008530, m=m@entry=0x7fb8931c43c0 <QSslSocket::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #18 0x00007fb892f44270 in QSslSocket::encrypted() (this=this@entry=0x7fb840008530) at .moc/moc_qsslsocket.cpp:301 #19 0x00007fb892f69d77 in QSslSocketBackendPrivate::continueHandshake() (this=0x7fb840008550) at ssl/qsslsocket_opensslpre11.cpp:413 #20 0x00007fb892f660db in QSslSocketBackendPrivate::startHandshake() (this=this@entry=0x7fb840008550) at ssl/qsslsocket_openssl.cpp:1018 #21 0x00007fb892f66ac6 in QSslSocketBackendPrivate::transmit() (this=0x7fb840008550) at ssl/qsslsocket_openssl.cpp:730 #22 0x00007fb892f498d1 in QSslSocket::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qsslsocket.cpp:180 #23 0x00007fb895becf79 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7fb840008e80, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #24 0x00007fb895bed887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7fb840008e80, m=m@entry=0x7fb89603e880 <QIODevice::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #25 0x00007fb895af9250 in QIODevice::readyRead() (this=this@entry=0x7fb840008e80) at .moc/moc_qiodevice.cpp:185 #26 0x00007fb892f14973 in QAbstractSocketPrivate::emitReadyRead(int) (this=this@entry=0x7fb840009340, channel=channel@entry=0) at socket/qabstractsocket.cpp:1307 #27 0x00007fb892f14a2c in QAbstractSocketPrivate::canReadNotification() (this=0x7fb840009340) at socket/qabstractsocket.cpp:734 #28 0x00007fb892f28371 in QReadNotifier::event(QEvent*) (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1274 #29 0x00007fb89721939c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x7fb8400013a0, e=0x7fb84bffead0) at kernel/qapplication.cpp:3727 #30 0x00007fb897220ab0 in QApplication::notify(QObject*, QEvent*) (this=0x7fff92b1c6e0, receiver=0x7fb8400013a0, e=0x7fb84bffead0) at kernel/qapplication.cpp:3486 #31 0x00007fb895bc0228 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x7fb8400013a0, event=event@entry=0x7fb84bffead0) at kernel/qcoreapplication.cpp:1048 #32 0x00007fb895c17d1d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (event=0x7fb84bffead0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234 #33 0x00007fb895c17d1d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (source=0x7fb840002400) at kernel/qeventdispatcher_glib.cpp:106 #34 0x00007fb88fc36197 in g_main_context_dispatch (context=0x7fb840000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3154 #35 0x00007fb88fc36197 in g_main_context_dispatch (context=context@entry=0x7fb840000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3769 #36 0x00007fb88fc363f0 in g_main_context_iterate (context=context@entry=0x7fb840000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3840 #37 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb840000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #38 0x00007fb895c1709f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fb8400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #39 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fb84bffecf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #40 0x00007fb8959f35e4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525 #41 0x00007fb8959fe727 in QThreadPrivate::start(void*) (arg=0x559fa80) at thread/qthread_unix.cpp:367 #42 0x00007fb891a9b6ba in start_thread (arg=0x7fb84bfff700) at pthread_create.c:333 #43 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 8 (Thread 0x7fb861ed1700 (LWP 11725)): #0 0x00007fb894ff674d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb88fc3638c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fb84c002870, timeout=<optimized out>, context=0x7fb84c000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fb88fc3638c in g_main_context_iterate (context=context@entry=0x7fb84c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb84c000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fb895c1709f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fb84c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #5 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fb861ed0cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fb8959f35e4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525 #7 0x00007fb8959fe727 in QThreadPrivate::start(void*) (arg=0x2d089d0) at thread/qthread_unix.cpp:367 #8 0x00007fb891a9b6ba in start_thread (arg=0x7fb861ed1700) at pthread_create.c:333 #9 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7fb8626d2700 (LWP 11724)): #0 0x00007fb894ff674d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb88fc3638c in g_main_context_iterate (priority=2147483647, n_fds=2, fds=0x7fb8540010c0, timeout=<optimized out>, context=0x2cf94b0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fb88fc3638c in g_main_context_iterate (context=0x2cf94b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fb88fc36712 in g_main_loop_run (loop=0x2cf9440) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4034 #4 0x00007fb8640aa9d6 in gdbus_shared_thread_func (user_data=0x2cf9480) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./gio/gdbusprivate.c:246 #5 0x00007fb88fc5cbb5 in g_thread_proxy (data=0x2cd2cf0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gthread.c:780 #6 0x00007fb891a9b6ba in start_thread (arg=0x7fb8626d2700) at pthread_create.c:333 #7 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7fb862ed3700 (LWP 11723)): #0 0x00007fb894ff674d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb88fc3638c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fb85c0008c0, timeout=<optimized out>, context=0x2cf8c70) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fb88fc3638c in g_main_context_iterate (context=context@entry=0x2cf8c70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fb88fc3649c in g_main_context_iteration (context=0x2cf8c70, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fb88fc364d9 in glib_worker_main (data=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:5672 #5 0x00007fb88fc5cbb5 in g_thread_proxy (data=0x2cd2ca0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gthread.c:780 #6 0x00007fb891a9b6ba in start_thread (arg=0x7fb862ed3700) at pthread_create.c:333 #7 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7fb86ce62700 (LWP 11722)): #0 0x00007fb894ff674d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb88fc3638c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fb8680013c0, timeout=<optimized out>, context=0x7fb868000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fb88fc3638c in g_main_context_iterate (context=context@entry=0x7fb868000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb868000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fb895c170bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fb8680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fb86ce61c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fb8959f35e4 in QThread::exec() (this=this@entry=0x2c533a0) at thread/qthread.cpp:525 #7 0x00007fb898e40f86 in QQuickPixmapReader::run() (this=0x2c533a0) at util/qquickpixmapcache.cpp:934 #8 0x00007fb8959fe727 in QThreadPrivate::start(void*) (arg=0x2c533a0) at thread/qthread_unix.cpp:367 #9 0x00007fb891a9b6ba in start_thread (arg=0x7fb86ce62700) at pthread_create.c:333 #10 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7fb87ccbc700 (LWP 11721)): #0 0x00007fb894ff674d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb88fc3638c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fb870002e70, timeout=<optimized out>, context=0x7fb870000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fb88fc3638c in g_main_context_iterate (context=context@entry=0x7fb870000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb870000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fb895c1709f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fb8700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #5 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fb87ccbbcd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fb8959f35e4 in QThread::exec() (this=this@entry=0x25993a0) at thread/qthread.cpp:525 #7 0x00007fb89657d195 in QQmlThreadPrivate::run() (this=0x25993a0) at qml/ftw/qqmlthread.cpp:148 #8 0x00007fb8959fe727 in QThreadPrivate::start(void*) (arg=0x25993a0) at thread/qthread_unix.cpp:367 #9 0x00007fb891a9b6ba in start_thread (arg=0x7fb87ccbc700) at pthread_create.c:333 #10 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7fb87decd700 (LWP 11720)): #0 0x00007fb894ff674d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb88fc3638c in g_main_context_iterate (priority=2147483647, n_fds=4, fds=0x7fb878018cf0, timeout=<optimized out>, context=0x7fb878000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fb88fc3638c in g_main_context_iterate (context=context@entry=0x7fb878000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb878000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fb895c170bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fb8780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fb87decccc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fb8959f35e4 in QThread::exec() (this=this@entry=0x7fb897bb1d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:525 #7 0x00007fb897938f35 in QDBusConnectionManager::run() (this=0x7fb897bb1d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178 #8 0x00007fb8959fe727 in QThreadPrivate::start(void*) (arg=0x7fb897bb1d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367 #9 0x00007fb891a9b6ba in start_thread (arg=0x7fb87decd700) at pthread_create.c:333 #10 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7fb886e01700 (LWP 11719)): #0 0x00007fb894ff674d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb88f9d3c62 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7fb886e00bf0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46 #2 0x00007fb88f9d3c62 in _xcb_conn_wait (c=c@entry=0x24dd5c0, cond=cond@entry=0x24dd600, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459 #3 0x00007fb88f9d58d7 in xcb_wait_for_event (c=0x24dd5c0) at ../../src/xcb_in.c:693 #4 0x00007fb889816489 in QXcbEventReader::run() (this=0x24e8610) at qxcbconnection.cpp:1388 #5 0x00007fb8959fe727 in QThreadPrivate::start(void*) (arg=0x24e8610) at thread/qthread_unix.cpp:367 #6 0x00007fb891a9b6ba in start_thread (arg=0x7fb886e01700) at pthread_create.c:333 #7 0x00007fb89500241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7fb899d258c0 (LWP 11718)): #0 0x00007fb894ff22dd in write () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fb894f73bff in _IO_new_file_write (f=0x7fb8952c0540 <_IO_2_1_stderr_>, data=0x4493fca0, n=112) at fileops.c:1263 #2 0x00007fb894f7438a in _IO_new_file_xsputn (to_do=112, data=0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", fp=0x7fb8952c0540 <_IO_2_1_stderr_>) at fileops.c:518 #3 0x00007fb894f7438a in _IO_new_file_xsputn (f=0x7fb8952c0540 <_IO_2_1_stderr_>, data=<optimized out>, n=112) at fileops.c:1342 #4 0x00007fb894f690c8 in __GI__IO_fputs (str=str@entry=0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", fp=fp@entry=0x7fb8952c0540 <_IO_2_1_stderr_>) at iofputs.c:38 #5 0x00007fb88fc3c41f in g_log_default_handler (string=0x4493fca0 "\n(process:11718): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", stream=0x7fb8952c0540 <_IO_2_1_stderr_>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:367 #6 0x00007fb88fc3c41f in g_log_default_handler (log_domain=log_domain@entry=0x7fb88fc7d7ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, message=message@entry=0x4492dc00 "g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed", unused_data=unused_data@entry=0x0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1507 #7 0x00007fb88fc3c9a4 in g_logv (log_domain=0x7fb88fc7d7ee "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7fff92b1c240) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1059 #8 0x00007fb88fc3cbcf in g_log (log_domain=log_domain@entry=0x7fb88fc7d7ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7fb88fc87374 "%s: assertion '%s' failed") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1119 #9 0x00007fb88fc3cc09 in g_return_if_fail_warning (log_domain=log_domain@entry=0x7fb88fc7d7ee "GLib", pretty_function=pretty_function@entry=0x7fb88fc7df70 <__func__.5554> "g_byte_array_remove_range", expression=expression@entry=0x7fb88fc7de67 "index_ + length <= array->len") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1134 #10 0x00007fb88fc0a8ca in g_byte_array_remove_range (array=<optimized out>, index_=<optimized out>, length=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/garray.c:1817 #11 0x00007fb8594a777c in () at /usr/lib/x86_64-linux-gnu/libsnapd-glib.so.1 #12 0x00007fb86403d901 in socket_source_dispatch (source=0x5547050, callback=0x7fb8594a7570, user_data=0x4c333a0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./gio/gsocket.c:3543 #13 0x00007fb88fc3604a in g_main_context_dispatch (context=0x7fb8800016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3154 #14 0x00007fb88fc3604a in g_main_context_dispatch (context=context@entry=0x7fb8800016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3769 #15 0x00007fb88fc363f0 in g_main_context_iterate (context=context@entry=0x7fb8800016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3840 #16 0x00007fb88fc3649c in g_main_context_iteration (context=0x7fb8800016f0, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #17 0x00007fb895c1709f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x2518800, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #18 0x00007fb88989f9a1 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x2518800, flags=...) at qeventdispatcher_glib.cpp:69 #19 0x00007fb895bbe5ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff92b1c600, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #20 0x00007fb895bc76c4 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1336 #21 0x00007fb896a04f8c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1762 #22 0x00007fb8972192f5 in QApplication::exec() () at kernel/qapplication.cpp:2901 #23 0x000000000041319f in main(int, char**) (argc=1, argv=<optimized out>) at /workspace/build/discover/main.cpp:156 (gdb) quit A debugging session is active. Inferior 1 [process 11718] will be detached. Quit anyway? (y or n) n[Ky Detaching from program: /usr/bin/plasma-discover, process 11718
Removing the snap backend fixes the freeze.
Isn't it the same as this other bug? https://bugs.kde.org/show_bug.cgi?id=397144
(In reply to Aleix Pol from comment #2) > Isn't it the same as this other bug? > https://bugs.kde.org/show_bug.cgi?id=397144 You're probably right; I tried to reproduce that freeze with the snap backend removed, but couldn't.
Here's a backtrace with gdb set to G_DEBUG=fatal-criticals. I hope I did it right. I know you requested it in https://bugs.kde.org/show_bug.cgi?id=397144 but since Discover with snap backend freezes upon launch, I can't reproduce bug 397144 (but they're probably the same, as you say). GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1 Copyright (C) 2016 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". (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) attach 24839 Attaching to process 24839 [New LWP 24840] [New LWP 24841] [New LWP 24842] [New LWP 24843] [New LWP 24844] [New LWP 24845] [New LWP 24846] [New LWP 24850] [New LWP 24854] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". _IO_new_file_overflow (f=0x7fce86608540 <_IO_2_1_stderr_>, ch=-1) at fileops.c:808 808 fileops.c: No such file or directory. (gdb) backtrace full Python Exception <class 'gdb.error'> Attempt to dereference a generic pointer.: #0 0x00007fce862bd730 in _IO_new_file_overflow (f=0x7fce86608540 <_IO_2_1_stderr_>, ch=-1) at fileops.c:808 #1 0x00007fce862bc28d in _IO_new_file_xsputn (f=0x7fce86608540 <_IO_2_1_stderr_>, data=0x217c9720, n=112) at fileops.c:1331 block_size = <optimized out> do_write = <optimized out> s = 0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" to_do = 112 must_flush = <optimized out> count = <optimized out> n = 112 data = 0x217c9720 f = 0x7fce86608540 <_IO_2_1_stderr_> s = 0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" to_do = 112 #2 0x00007fce862b10c8 in __GI__IO_fputs (str=str@entry=0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", fp=fp@entry=0x7fce86608540 <_IO_2_1_stderr_>) at iofputs.c:38 _IO_acquire_lock_file = 0x7fce86608540 <_IO_2_1_stderr_> len = 112 result = -1 #3 0x00007fce80f8441f in g_log_default_handler (string=0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", stream=0x7fce86608540 <_IO_2_1_stderr_>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:367 level_prefix = "CRITICAL **\000\316\177\000\000\060q,\206\316\177\000\000\360t,\206\316\177\000\000\360^\372$\376\177\000\000\060_\372$\376\177\000\000\000\000\000\000\000\000\000\000`A$" string = 0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" gstring = 0x4c59f00 stream = 0x7fce86608540 <_IO_2_1_stderr_> domains = <optimized out> #4 0x00007fce80f8441f in g_log_default_handler (log_domain=log_domain@entry=0x7fce80fc57ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, message=message@entry=0x217c4800 "g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed", unused_data=unused_data@entry=0x0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1507 level_prefix = "CRITICAL **\000\316\177\000\000\060q,\206\316\177\000\000\360t,\206\316\177\000\000\360^\372$\376\177\000\000\060_\372$\376\177\000\000\000\000\000\000\000\000\000\000`A$" string = 0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n" gstring = 0x4c59f00 stream = 0x7fce86608540 <_IO_2_1_stderr_> domains = <optimized out> #5 0x00007fce80f849a4 in g_logv (log_domain=0x7fce80fc57ee "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7ffe24fa6010) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1059 domain = 0x0 data = 0x0 depth = 1 log_func = 0x7fce80f84220 <g_log_default_handler> domain_fatal_mask = <optimized out> masquerade_fatal = 0 test_level = G_LOG_LEVEL_CRITICAL was_fatal = <optimized out> was_recursion = <optimized out> msg = 0x217c4800 "g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed" msg_alloc = 0x217c4800 "g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed" i = 3 #6 0x00007fce80f84bcf in g_log (log_domain=log_domain@entry=0x7fce80fc57ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7fce80fcf374 "%s: assertion '%s' failed") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1119 #7 0x00007fce80f84c09 in g_return_if_fail_warning (log_domain=log_domain@entry=0x7fce80fc57ee "GLib", pretty_function=pretty_function@entry=0x7fce80fc5f70 <__func__.5554> "g_byte_array_remove_range", expression=expression@entry=0x7fce80fc5e67 "index_ + length <= array->len") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1134 #8 0x00007fce80f528ca in g_byte_array_remove_range (array=<optimized out>, index_=<optimized out>, length=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/garray.c:1817 __func__ = "g_byte_array_remove_range" #9 0x00007fce4274577c in () at /usr/lib/x86_64-linux-gnu/libsnapd-glib.so.1 #10 0x00007fce5534c901 in socket_source_dispatch (source=0x23d9800, callback=0x7fce42745570, user_data=0x20f5b70) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./gio/gsocket.c:3543 func = 0x7fce42745570 socket_source = 0x23d9800 socket = 0x267ca60 [GSocket] timeout = <optimized out> events = 1 ret = <optimized out> #11 0x00007fce80f7e04a in g_main_context_dispatch (context=0x7fce700016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3154 dispatch = 0x7fce5534c8b0 <socket_source_dispatch> prev_source = 0x0 was_in_call = 0 user_data = 0x20f5b70 callback = 0x7fce42745570 cb_funcs = <optimized out> cb_data = 0x23d9880 need_destroy = <optimized out> source = 0x23d9800 current = 0x1168110 i = 1 #12 0x00007fce80f7e04a in g_main_context_dispatch (context=context@entry=0x7fce700016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3769 #13 0x00007fce80f7e3f0 in g_main_context_iterate (context=context@entry=0x7fce700016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3840 max_priority = 0 timeout = 0 some_ready = 1 nfds = <optimized out> allocated_nfds = 6 fds = 0x4a2d7d0 #14 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce700016f0, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 retval = <optimized out> #15 0x00007fce86f5f09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x1156dc0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 d = 0x1159250 canWait = true savedFlags = {i = 0} result = <optimized out> #16 0x00007fce7abe79a1 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1156dc0, flags=...) at qeventdispatcher_glib.cpp:69 didSendEvents = <optimized out> #17 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe24fa63d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 d = 0x11db690 locker = {val = 17877728} ref = {d = 0x11db690, locker = @0x7ffe24fa6350, exceptionCaught = true} #18 0x00007fce86f0f6c4 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1336 threadData = 0x110c9f0 eventLoop = {<QObject> = {_vptr.QObject = 0x7fce873893c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fce87091880 <qt_meta_stringdata_QObject>, data = 0x7fce87091760 <qt_meta_data_QObject>, static_metacall = 0x7fce86f3d0c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x11db690}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7fce87094640 <qt_meta_stringdata_Qt>, data = 0x7fce870919a0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7fce87381a40 <QObject::staticMetaObject>, stringdata = 0x7fce8708c360 <qt_meta_stringdata_QEventLoop>, data = 0x7fce8708c300 <qt_meta_data_QEventLoop>, static_metacall = 0x7fce86f062f0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} returnCode = <optimized out> #19 0x00007fce87d4cf8c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1762 #20 0x00007fce885612f5 in QApplication::exec() () at kernel/qapplication.cpp:2901 #21 0x000000000041319f in main(int, char**) (argc=1, argv=<optimized out>) at /workspace/build/discover/main.cpp:156 app = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7fce88c3ba10 <vtable for QApplication+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fce87091880 <qt_meta_stringdata_QObject>, data = 0x7fce87091760 <qt_meta_data_QObject>, static_metacall = 0x7fce86f3d0c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x110cf80}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7fce87094640 <qt_meta_stringdata_Qt>, data = 0x7fce870919a0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7fce87381a40 <QObject::staticMetaObject>, stringdata = 0x7fce8708c9a0 <qt_meta_stringdata_QCoreApplication>, data = 0x7fce8708c880 <qt_meta_data_QCoreApplication>, static_metacall = 0x7fce86f09d50 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7ffe24fa64b0}, static staticMetaObject = {d = {superdata = 0x7fce87389560 <QCoreApplication::staticMetaObject>, stringdata = 0x7fce8810b0c0 <qt_meta_stringdata_QGuiApplication>, data = 0x7fce8810ae40 <qt_meta_data_QGuiApplication>, static_metacall = 0x7fce87d585b0 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7fce883f1ec0 <QGuiApplication::staticMetaObject>, stringdata = 0x7fce888e1380 <qt_meta_stringdata_QApplication>, data = 0x7fce888e1200 <qt_meta_data_QApplication>, static_metacall = 0x7fce88566480 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} about = {d = 0x11de960} mainWindow = 0x11dbd20 (gdb) x/16i $pc => 0x7fce862bd730 <_IO_new_file_overflow>: mov (%rdi),%ecx 0x7fce862bd732 <_IO_new_file_overflow+2>: test $0x8,%cl 0x7fce862bd735 <_IO_new_file_overflow+5>: jne 0x7fce862bd8d0 <_IO_new_file_overflow+416> 0x7fce862bd73b <_IO_new_file_overflow+11>: test $0x8,%ch 0x7fce862bd73e <_IO_new_file_overflow+14>: push %r12 0x7fce862bd740 <_IO_new_file_overflow+16>: push %rbp 0x7fce862bd741 <_IO_new_file_overflow+17>: mov %esi,%ebp 0x7fce862bd743 <_IO_new_file_overflow+19>: push %rbx 0x7fce862bd744 <_IO_new_file_overflow+20>: mov %rdi,%rbx 0x7fce862bd747 <_IO_new_file_overflow+23>: je 0x7fce862bd798 <_IO_new_file_overflow+104> 0x7fce862bd749 <_IO_new_file_overflow+25>: mov 0x20(%rdi),%rsi 0x7fce862bd74d <_IO_new_file_overflow+29>: test %rsi,%rsi 0x7fce862bd750 <_IO_new_file_overflow+32>: je 0x7fce862bd8f0 <_IO_new_file_overflow+448> 0x7fce862bd756 <_IO_new_file_overflow+38>: mov 0x28(%rdi),%rdx 0x7fce862bd75a <_IO_new_file_overflow+42>: cmp $0xffffffff,%ebp 0x7fce862bd75d <_IO_new_file_overflow+45>: je 0x7fce862bd8b0 <_IO_new_file_overflow+384> (gdb) thread apply all backtrace Thread 10 (Thread 0x7fce33df3700 (LWP 24854)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80f7e38c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fce280013a0, timeout=<optimized out>, context=0x7fce28000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fce80f7e38c in g_main_context_iterate (context=context@entry=0x7fce28000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce28000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fce86f5f0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fce280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fce33df2cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fce86d3b5e4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525 #7 0x00007fce86d46727 in QThreadPrivate::start(void*) (arg=0x2830c00) at thread/qthread_unix.cpp:367 #8 0x00007fce82de36ba in start_thread (arg=0x7fce33df3700) at pthread_create.c:333 #9 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 9 (Thread 0x7fce419d0700 (LWP 24850)): #0 0x00007fce863444d9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007fce86d39fa4 in QSemaphore::acquire(int) (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:92 #2 0x00007fce86d39fa4 in QSemaphore::acquire(int) (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:107 #3 0x00007fce86d39fa4 in QSemaphore::acquire(int) (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:221 #4 0x00007fce86d39fa4 in QSemaphore::acquire(int) (timeout=-1, n=1, u=...) at thread/qsemaphore.cpp:264 #5 0x00007fce86d39fa4 in QSemaphore::acquire(int) (this=this@entry=0x7fce419ce140, n=n@entry=1) at thread/qsemaphore.cpp:328 #6 0x00007fce86f351b6 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x23c7470, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3739 #7 0x00007fce86f35887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x23c7470, m=m@entry=0x7fce8450d4c0 <QHttpThreadDelegate::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #8 0x00007fce842b6cb3 in QHttpThreadDelegate::encrypted() (this=this@entry=0x23c7470) at .moc/moc_qhttpthreaddelegate_p.cpp:511 #9 0x00007fce84216378 in QHttpThreadDelegate::encryptedSlot() (this=0x23c7470) at access/qhttpthreaddelegate.cpp:694 #10 0x00007fce842b7d3d in QHttpThreadDelegate::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qhttpthreaddelegate_p.cpp:246 #11 0x00007fce86f34f79 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7fce38009d40, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #12 0x00007fce86f35887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=<optimized out>, m=m@entry=0x7fce8450d300 <QHttpNetworkReply::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #13 0x00007fce842b5db0 in QHttpNetworkReply::encrypted() (this=<optimized out>) at .moc/moc_qhttpnetworkreply_p.cpp:338 #14 0x00007fce8420bc02 in QHttpNetworkConnectionChannel::_q_encrypted() (this=0x7fce3800a018) at access/qhttpnetworkconnectionchannel.cpp:1234 #15 0x00007fce8420c4cd in QHttpNetworkConnectionChannel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qhttpnetworkconnectionchannel_p.cpp:132 #16 0x00007fce86f34f79 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7fce38007890, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #17 0x00007fce86f35887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7fce38007890, m=m@entry=0x7fce8450c3c0 <QSslSocket::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #18 0x00007fce8428c270 in QSslSocket::encrypted() (this=this@entry=0x7fce38007890) at .moc/moc_qsslsocket.cpp:301 #19 0x00007fce842b1d77 in QSslSocketBackendPrivate::continueHandshake() (this=0x7fce3800a590) at ssl/qsslsocket_opensslpre11.cpp:413 #20 0x00007fce842ae0db in QSslSocketBackendPrivate::startHandshake() (this=this@entry=0x7fce3800a590) at ssl/qsslsocket_openssl.cpp:1018 #21 0x00007fce842aeac6 in QSslSocketBackendPrivate::transmit() (this=0x7fce3800a590) at ssl/qsslsocket_openssl.cpp:730 #22 0x00007fce842918d1 in QSslSocket::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qsslsocket.cpp:180 #23 0x00007fce86f34f79 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7fce3800aae0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3771 #24 0x00007fce86f35887 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7fce3800aae0, m=m@entry=0x7fce87386880 <QIODevice::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3633 #25 0x00007fce86e41250 in QIODevice::readyRead() (this=this@entry=0x7fce3800aae0) at .moc/moc_qiodevice.cpp:185 #26 0x00007fce8425c973 in QAbstractSocketPrivate::emitReadyRead(int) (this=this@entry=0x7fce3800afa0, channel=channel@entry=0) at socket/qabstractsocket.cpp:1307 #27 0x00007fce8425ca2c in QAbstractSocketPrivate::canReadNotification() (this=0x7fce3800afa0) at socket/qabstractsocket.cpp:734 #28 0x00007fce84270371 in QReadNotifier::event(QEvent*) (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1274 #29 0x00007fce8856139c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x7fce38007710, e=0x7fce419cfad0) at kernel/qapplication.cpp:3727 #30 0x00007fce88568ab0 in QApplication::notify(QObject*, QEvent*) (this=0x7ffe24fa64b0, receiver=0x7fce38007710, e=0x7fce419cfad0) at kernel/qapplication.cpp:3486 #31 0x00007fce86f08228 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x7fce38007710, event=event@entry=0x7fce419cfad0) at kernel/qcoreapplication.cpp:1048 #32 0x00007fce86f5fd1d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (event=0x7fce419cfad0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234 #33 0x00007fce86f5fd1d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (source=0x7fce380013a0) at kernel/qeventdispatcher_glib.cpp:106 #34 0x00007fce80f7e197 in g_main_context_dispatch (context=0x7fce38000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3154 #35 0x00007fce80f7e197 in g_main_context_dispatch (context=context@entry=0x7fce38000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3769 #36 0x00007fce80f7e3f0 in g_main_context_iterate (context=context@entry=0x7fce38000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3840 #37 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce38000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #38 0x00007fce86f5f0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fce380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #39 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fce419cfcf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #40 0x00007fce86d3b5e4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525 #41 0x00007fce86d46727 in QThreadPrivate::start(void*) (arg=0x242da00) at thread/qthread_unix.cpp:367 #42 0x00007fce82de36ba in start_thread (arg=0x7fce419d0700) at pthread_create.c:333 #43 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 8 (Thread 0x7fce531e0700 (LWP 24846)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80f7e38c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fce48002870, timeout=<optimized out>, context=0x7fce48000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fce80f7e38c in g_main_context_iterate (context=context@entry=0x7fce48000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce48000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fce86f5f09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fce480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #5 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fce531dfcf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fce86d3b5e4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525 #7 0x00007fce86d46727 in QThreadPrivate::start(void*) (arg=0x164fad0) at thread/qthread_unix.cpp:367 #8 0x00007fce82de36ba in start_thread (arg=0x7fce531e0700) at pthread_create.c:333 #9 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7fce539e1700 (LWP 24845)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80f7e38c in g_main_context_iterate (priority=2147483647, n_fds=2, fds=0x7fce440010c0, timeout=<optimized out>, context=0x2b73940) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fce80f7e38c in g_main_context_iterate (context=0x2b73940, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fce80f7e712 in g_main_loop_run (loop=0x2b738d0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4034 #4 0x00007fce553b99d6 in gdbus_shared_thread_func (user_data=0x2b73910) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./gio/gdbusprivate.c:246 #5 0x00007fce80fa4bb5 in g_thread_proxy (data=0x1630cf0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gthread.c:780 #6 0x00007fce82de36ba in start_thread (arg=0x7fce539e1700) at pthread_create.c:333 #7 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7fce541e2700 (LWP 24844)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80f7e38c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fce4c0008c0, timeout=<optimized out>, context=0x2b73120) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fce80f7e38c in g_main_context_iterate (context=context@entry=0x2b73120, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fce80f7e49c in g_main_context_iteration (context=0x2b73120, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fce80f7e4d9 in glib_worker_main (data=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:5672 #5 0x00007fce80fa4bb5 in g_thread_proxy (data=0x1630ca0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gthread.c:780 #6 0x00007fce82de36ba in start_thread (arg=0x7fce541e2700) at pthread_create.c:333 #7 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7fce5e1e6700 (LWP 24843)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80f7e38c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fce580013c0, timeout=<optimized out>, context=0x7fce58000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fce80f7e38c in g_main_context_iterate (context=context@entry=0x7fce58000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce58000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fce86f5f0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fce580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fce5e1e5c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fce86d3b5e4 in QThread::exec() (this=this@entry=0x2aeeee0) at thread/qthread.cpp:525 #7 0x00007fce8a188f86 in QQuickPixmapReader::run() (this=0x2aeeee0) at util/qquickpixmapcache.cpp:934 #8 0x00007fce86d46727 in QThreadPrivate::start(void*) (arg=0x2aeeee0) at thread/qthread_unix.cpp:367 #9 0x00007fce82de36ba in start_thread (arg=0x7fce5e1e6700) at pthread_create.c:333 #10 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7fce6e0fa700 (LWP 24842)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80f7e38c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fce60002e70, timeout=<optimized out>, context=0x7fce60000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fce80f7e38c in g_main_context_iterate (context=context@entry=0x7fce60000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce60000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fce86f5f09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fce600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #5 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fce6e0f9cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fce86d3b5e4 in QThread::exec() (this=this@entry=0x11d93a0) at thread/qthread.cpp:525 #7 0x00007fce878c5195 in QQmlThreadPrivate::run() (this=0x11d93a0) at qml/ftw/qqmlthread.cpp:148 #8 0x00007fce86d46727 in QThreadPrivate::start(void*) (arg=0x11d93a0) at thread/qthread_unix.cpp:367 #9 0x00007fce82de36ba in start_thread (arg=0x7fce6e0fa700) at pthread_create.c:333 #10 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7fce6f30b700 (LWP 24841)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80f7e38c in g_main_context_iterate (priority=2147483647, n_fds=4, fds=0x7fce68018cf0, timeout=<optimized out>, context=0x7fce68000990) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:4135 #2 0x00007fce80f7e38c in g_main_context_iterate (context=context@entry=0x7fce68000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3835 #3 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce68000990, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #4 0x00007fce86f5f0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fce680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fce6f30acc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #6 0x00007fce86d3b5e4 in QThread::exec() (this=this@entry=0x7fce88ef9d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:525 #7 0x00007fce88c80f35 in QDBusConnectionManager::run() (this=0x7fce88ef9d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178 #8 0x00007fce86d46727 in QThreadPrivate::start(void*) (arg=0x7fce88ef9d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367 #9 0x00007fce82de36ba in start_thread (arg=0x7fce6f30b700) at pthread_create.c:333 #10 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7fce78149700 (LWP 24840)): #0 0x00007fce8633e74d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fce80d1bc62 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7fce78148bf0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46 #2 0x00007fce80d1bc62 in _xcb_conn_wait (c=c@entry=0x111d5c0, cond=cond@entry=0x111d600, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459 #3 0x00007fce80d1d8d7 in xcb_wait_for_event (c=0x111d5c0) at ../../src/xcb_in.c:693 #4 0x00007fce7ab5e489 in QXcbEventReader::run() (this=0x1128610) at qxcbconnection.cpp:1388 #5 0x00007fce86d46727 in QThreadPrivate::start(void*) (arg=0x1128610) at thread/qthread_unix.cpp:367 #6 0x00007fce82de36ba in start_thread (arg=0x7fce78149700) at pthread_create.c:333 #7 0x00007fce8634a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7fce8b06d8c0 (LWP 24839)): #0 0x00007fce862bd730 in _IO_new_file_overflow (f=0x7fce86608540 <_IO_2_1_stderr_>, ch=-1) at fileops.c:808 #1 0x00007fce862bc28d in _IO_new_file_xsputn (f=0x7fce86608540 <_IO_2_1_stderr_>, data=0x217c9720, n=112) at fileops.c:1331 #2 0x00007fce862b10c8 in __GI__IO_fputs (str=str@entry=0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", fp=fp@entry=0x7fce86608540 <_IO_2_1_stderr_>) at iofputs.c:38 #3 0x00007fce80f8441f in g_log_default_handler (string=0x217c9720 "\n(process:24839): GLib-CRITICAL **: g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed\n", stream=0x7fce86608540 <_IO_2_1_stderr_>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:367 #4 0x00007fce80f8441f in g_log_default_handler (log_domain=log_domain@entry=0x7fce80fc57ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, message=message@entry=0x217c4800 "g_byte_array_remove_range: assertion 'index_ + length <= array->len' failed", unused_data=unused_data@entry=0x0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1507 #5 0x00007fce80f849a4 in g_logv (log_domain=0x7fce80fc57ee "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7ffe24fa6010) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1059 #6 0x00007fce80f84bcf in g_log (log_domain=log_domain@entry=0x7fce80fc57ee "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7fce80fcf374 "%s: assertion '%s' failed") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1119 #7 0x00007fce80f84c09 in g_return_if_fail_warning (log_domain=log_domain@entry=0x7fce80fc57ee "GLib", pretty_function=pretty_function@entry=0x7fce80fc5f70 <__func__.5554> "g_byte_array_remove_range", expression=expression@entry=0x7fce80fc5e67 "index_ + length <= array->len") at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmessages.c:1134 #8 0x00007fce80f528ca in g_byte_array_remove_range (array=<optimized out>, index_=<optimized out>, length=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/garray.c:1817 #9 0x00007fce4274577c in () at /usr/lib/x86_64-linux-gnu/libsnapd-glib.so.1 #10 0x00007fce5534c901 in socket_source_dispatch (source=0x23d9800, callback=0x7fce42745570, user_data=0x20f5b70) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./gio/gsocket.c:3543 #11 0x00007fce80f7e04a in g_main_context_dispatch (context=0x7fce700016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3154 #12 0x00007fce80f7e04a in g_main_context_dispatch (context=context@entry=0x7fce700016f0) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3769 #13 0x00007fce80f7e3f0 in g_main_context_iterate (context=context@entry=0x7fce700016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3840 #14 0x00007fce80f7e49c in g_main_context_iteration (context=0x7fce700016f0, may_block=may_block@entry=1) at /build/glib2.0-b4FPyK/glib2.0-2.48.2/./glib/gmain.c:3901 #15 0x00007fce86f5f09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x1156dc0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #16 0x00007fce7abe79a1 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1156dc0, flags=...) at qeventdispatcher_glib.cpp:69 #17 0x00007fce86f065ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe24fa63d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214 #18 0x00007fce86f0f6c4 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1336 #19 0x00007fce87d4cf8c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1762 #20 0x00007fce885612f5 in QApplication::exec() () at kernel/qapplication.cpp:2901 #21 0x000000000041319f in main(int, char**) (argc=1, argv=<optimized out>) at /workspace/build/discover/main.cpp:156 (gdb) quit A debugging session is active. Inferior 1 [process 24839] will be detached. Quit anyway? (y or n) y Detaching from program: /usr/bin/plasma-discover, process 24839
Asked upstream, let's see if Robert can shed some light. It's likely to be Neon not shipping the latest stable release.
Robert tells me it's probably been fixed a while ago. If only we had stable releases available... https://github.com/snapcore/snapd-glib/commit/b6cb05b9fdbbebbd45243d23dcf39d1f7463595f Please reopen if you find the issue after updating (neon bionic shouldn't have this issue anymore.