Bug 416738

Application: kmail (5.13.1 (19.12.1))

Qt Version: 5.14.0
Frameworks Version: 5.66.0
Operating System: Linux 4.12.14-lp151.28.36-default x86_64
Windowing system: X11
Distribution: "openSUSE Leap 15.1"

-- Information about the crash:
- What I was doing when the application crashed: I was opening the program, after the latest openSUSE upgrade; same thing after reboot

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f46949c7a40 (LWP 2309))]

Thread 18 (Thread 0x7f460a253700 (LWP 2590)):
#0  0x00007f469189719b in poll () from /lib64/libc.so.6
#1  0x00007f4684ae51a9 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4684ae52bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f46921f9a3b in QEventDispatcherGlib::processEvents (this=0x7f4638005570, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f469219903a in QEventLoop::exec (this=this@entry=0x7f460a252b70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f4691faa467 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#6  0x00007f4691fab93c in QThreadPrivate::start (arg=0x5600a4c24540) at thread/qthread_unix.cpp:342
#7  0x00007f4686f70569 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f46918a19ef in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f460b7ff700 (LWP 2588)):
#0  0x00007f4686f768ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f467b7875ba in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7f46127a2700 (LWP 2573)):
#0  0x00007f4686f768ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f467b7875ba in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f4613fff700 (LWP 2572)):
#0  0x00007f4686f76bdb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f467b7876a6 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x0000000000000174 in ?? ()
#3  0x0000000034c1568f in ?? ()
#4  0x0000000000000174 in ?? ()
#5  0x0000000033c59d27 in ?? ()
#6  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f4618ff9700 (LWP 2571)):
#0  0x00007f4686f768ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f467b7875ba in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f46197fa700 (LWP 2570)):
#0  0x00007f46918aeb5c in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f46918b08b4 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f466e80bffd in event_logv_ () from /usr/lib64/libevent-2.1.so.6
#3  0x00007f466e80c194 in event_warn () from /usr/lib64/libevent-2.1.so.6
#4  0x00007f466e80dabc in ?? () from /usr/lib64/libevent-2.1.so.6
#5  0x00007f466e803764 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#6  0x00007f467b78efeb in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x0100000000000000 in ?? ()
#8  0x00007f46197f9a10 in ?? ()
#9  0x00007f46197f9a08 in ?? ()
#10 0x00007f461c006cf0 in ?? ()
#11 0x0000000000000008 in ?? ()
#12 0x00007f4675168321 in ?? () from /usr/lib64/tls/libnvidia-tls.so.340.108
#13 0x7fffffffffffffff in ?? ()
#14 0x0000000000000001 in ?? ()
#15 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f4619ffb700 (LWP 2569)):
#0  0x00007f4686f768ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f4683f0c512 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f4683f0dc3f in ?? () from /usr/lib64/libxcb.so.1
#3  0x00007f4683f0ddbf in xcb_wait_for_reply64 () from /usr/lib64/libxcb.so.1
#4  0x00007f46871cd298 in _XReply () from /usr/lib64/libX11.so.6
#5  0x00007f468696f843 in ?? () from /usr/X11R6/lib64/libGL.so.1
#6  0x00007f46869713ea in ?? () from /usr/X11R6/lib64/libGL.so.1
#7  0x00007f467badc12f in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f46201ba650 in ?? ()
#9  0x00007f46201ba650 in ?? ()
#10 0x00007f4619ffa5c0 in ?? ()
#11 0x00007f467c788dd6 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f4619ffa580 in ?? ()
#13 0x853fdf77e8da5800 in ?? ()
#14 0x00007f4619ffa5c0 in ?? ()
#15 0x00007f4620221e78 in ?? ()
#16 0x00007f4619ffa5c0 in ?? ()
#17 0x00007f4619ffa5e0 in ?? ()
#18 0x0000000000000001 in ?? ()
#19 0x00007f4620334ce0 in ?? ()
#20 0x00007f4619ffa730 in ?? ()
#21 0x00007f467b6d3356 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#22 0x00007f4619ffa630 in ?? ()
#23 0x00007f46201d7d80 in ?? ()
#24 0x00007f46201ba600 in ?? ()
#25 0x0000000000000001 in ?? ()
#26 0x00007f4619ffa630 in ?? ()
#27 0x00007f467c871083 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#28 0x0000000000000001 in ?? ()
#29 0x00007f4620221e70 in ?? ()
#30 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f461a7fc700 (LWP 2568)):
#0  0x00007f4686f768ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f467b7875ba in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f4634ff9700 (LWP 2563)):
#0  0x00007f4686f76bdb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f467b7876a6 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x0000000000000194 in ?? ()
#3  0x0000000034f85ca1 in ?? ()
#4  0x0000000000000173 in ?? ()
#5  0x0000000034f85ca1 in ?? ()
#6  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f4635ffb700 (LWP 2562)):
#0  0x00007f4691826e43 in _IO_default_xsputn () from /lib64/libc.so.6
#1  0x00007f46917f7e24 in vfprintf () from /lib64/libc.so.6
#2  0x00007f46917fa8d6 in buffered_vfprintf () from /lib64/libc.so.6
#3  0x00007f46917f7bce in vfprintf () from /lib64/libc.so.6
#4  0x00007f46918b0906 in __fprintf_chk () from /lib64/libc.so.6
#5  0x00007f466e80bffd in event_logv_ () from /usr/lib64/libevent-2.1.so.6
#6  0x00007f466e80c194 in event_warn () from /usr/lib64/libevent-2.1.so.6
#7  0x00007f466e80dabc in ?? () from /usr/lib64/libevent-2.1.so.6
#8  0x00007f466e803764 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#9  0x00007f467b78efeb in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x0100000000000000 in ?? ()
#11 0x00007f4635ffa9f0 in ?? ()
#12 0x00007f4635ffa9e8 in ?? ()
#13 0x00007f4620002510 in ?? ()
#14 0x0000000000000008 in ?? ()
#15 0x000000000046280f in ?? ()
#16 0x0000000000000004 in ?? ()
#17 0x0000000000091f0f in ?? ()
#18 0x00007f4635ffaa40 in ?? ()
#19 0x00005600a30d1f70 in ?? ()
#20 0x7fffffffffffffff in ?? ()
#21 0x7fffffffffffffff in ?? ()
#22 0x0000000000000001 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f4636ffd700 (LWP 2560)):
#0  0x00007f46918aeb5c in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f46918b08b4 in __fprintf_chk () from /lib64/libc.so.6
#2  0x00007f466e80bffd in event_logv_ () from /usr/lib64/libevent-2.1.so.6
#3  0x00007f466e80c194 in event_warn () from /usr/lib64/libevent-2.1.so.6
#4  0x00007f466e80dabc in ?? () from /usr/lib64/libevent-2.1.so.6
#5  0x00007f466e803764 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#6  0x00007f467b78f0c6 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x01007f4636ffc9f0 in ?? ()
#8  0x00007f4636ffc9f0 in ?? ()
#9  0x00007f4636ffc9e8 in ?? ()
#10 0x00007f4628002630 in ?? ()
#11 0x00007f4636ffca20 in ?? ()
#12 0x00000000c1560d6e in ?? ()
#13 0x0000000000000cab in ?? ()
#14 0x000000000009ccae in ?? ()
#15 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f463f523700 (LWP 2455)):
#0  0x00007f469189719b in poll () from /lib64/libc.so.6
#1  0x00007f4684ae51a9 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4684ae52bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f46921f9a3b in QEventDispatcherGlib::processEvents (this=0x7f4638000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f469219903a in QEventLoop::exec (this=this@entry=0x7f463f522b70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f4691faa467 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#6  0x00007f4691fab93c in QThreadPrivate::start (arg=0x5600a302b760) at thread/qthread_unix.cpp:342
#7  0x00007f4686f70569 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f46918a19ef in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f465541f700 (LWP 2316)):
#0  0x00007f4684b2afb9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4684ae4d56 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4684ae5230 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4684ae52bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f46921f9a3b in QEventDispatcherGlib::processEvents (this=0x7f4648000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f469219903a in QEventLoop::exec (this=this@entry=0x7f465541eb70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f4691faa467 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f4691fab93c in QThreadPrivate::start (arg=0x5600a2e59e60) at thread/qthread_unix.cpp:342
#8  0x00007f4686f70569 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f46918a19ef in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f4655c20700 (LWP 2313)):
#0  0x00007f4691892c98 in read () from /lib64/libc.so.6
#1  0x00007f4675167f55 in ?? () from /usr/lib64/tls/libnvidia-tls.so.340.108
#2  0x00007f4684b29c80 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4684ae4cb8 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f4684ae5150 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f4684ae52bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#6  0x00007f46921f9a3b in QEventDispatcherGlib::processEvents (this=0x7f4644000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f469219903a in QEventLoop::exec (this=this@entry=0x7f4655c1fb70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#8  0x00007f4691faa467 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#9  0x00007f4691fab93c in QThreadPrivate::start (arg=0x5600a2e373a0) at thread/qthread_unix.cpp:342
#10 0x00007f4686f70569 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f46918a19ef in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f4656aec700 (LWP 2312)):
#0  0x00007f4684b2afd4 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4684ae4bd1 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4684ae5150 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4684ae52bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f46921f9a3b in QEventDispatcherGlib::processEvents (this=0x7f464c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f469219903a in QEventLoop::exec (this=this@entry=0x7f4656aebb70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f4691faa467 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f4691fab93c in QThreadPrivate::start (arg=0x5600a2d52630) at thread/qthread_unix.cpp:342
#8  0x00007f4686f70569 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f46918a19ef in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f465cace700 (LWP 2311)):
#0  0x00007f469189719b in poll () from /lib64/libc.so.6
#1  0x00007f4684ae51a9 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4684ae52bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f46921f9a3b in QEventDispatcherGlib::processEvents (this=0x7f4650000b30, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f469219903a in QEventLoop::exec (this=this@entry=0x7f465cacdb40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f4691faa467 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#6  0x00007f46907f2115 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f4691fab93c in QThreadPrivate::start (arg=0x7f4690a69da0) at thread/qthread_unix.cpp:342
#8  0x00007f4686f70569 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f46918a19ef in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f465e63c700 (LWP 2310)):
#0  0x00007f469189719b in poll () from /lib64/libc.so.6
#1  0x00007f4683f0c307 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f4683f0df3a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f4660b9efe0 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f4691fab93c in QThreadPrivate::start (arg=0x5600a29dc5e0) at thread/qthread_unix.cpp:342
#5  0x00007f4686f70569 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f46918a19ef in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f46949c7a40 (LWP 2309)):
[KCrash Handler]
#6  QLocale::toString (this=this@entry=0x7ffe1861bbd8, dateTime=..., format=format@entry=QLocale::ShortFormat) at text/qlocale.cpp:2186
#7  0x00007f468b177bfa in KMime::DateFormatterPrivate::localized (t=t@entry=1579263464, shortFormat=shortFormat@entry=true, lang=...) at /usr/src/debug/kmime-19.12.1-lp151.150.1.x86_64/src/kmime_dateformatter.cpp:310
#8  0x00007f468b1785ff in KMime::DateFormatter::dateString (this=this@entry=0x7ffe1861bc60, t=t@entry=1579263464, lang=..., shortFormat=shortFormat@entry=true) at /usr/src/debug/kmime-19.12.1-lp151.150.1.x86_64/src/kmime_dateformatter.cpp:144
#9  0x00007f468b178733 in KMime::DateFormatter::formatDate (ftype=ftype@entry=KMime::DateFormatter::Localized, t=1579263464, data=..., shortFormat=shortFormat@entry=true) at /usr/src/debug/kmime-19.12.1-lp151.150.1.x86_64/src/kmime_dateformatter.cpp:335
#10 0x00007f468e843eaa in MessageViewer::HeaderStyleUtil::dateString (dateTime=..., dateFormat=MessageViewer::HeaderStyleUtil::ShortDate) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/header/headerstyle_util.cpp:79
#11 0x00007f468e84b152 in Grantlee::TypeAccessor<QDateTime&>::lookUp (property=..., object=...) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/header/grantleeheaderformatter.cpp:143
#12 Grantlee::(anonymous namespace)::LookupTrait<QDateTime&, QDateTime&>::doLookUp (object=..., property=...) at /usr/include/grantlee5/grantlee/metatype.h:107
#13 0x00007f468023970a in Grantlee::CustomTypeRegistry::lookup (this=0x7f4680484090 <(anonymous namespace)::Q_QGS_customTypes::innerFunction()::holder>, object=..., property=...) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/customtyperegistry.cpp:78
#14 0x00007f468024a335 in Grantlee::MetaType::lookup (object=..., property=...) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/metatype.cpp:188
#15 0x00007f46802626d6 in Grantlee::Variable::resolve (this=this@entry=0x5600a4c3f070, c=c@entry=0x7ffe1861c638) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/variable.cpp:211
#16 0x00007f4680240a1f in Grantlee::FilterExpression::resolve (this=this@entry=0x5600a4c3eff8, stream=stream@entry=0x7ffe1861c360, c=c@entry=0x7ffe1861c638) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/filterexpression.cpp:213
#17 0x00007f468024396f in Grantlee::FilterExpression::resolve (this=this@entry=0x5600a4c3eff8, c=c@entry=0x7ffe1861c638) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/filterexpression.cpp:260
#18 0x00007f468024e3a2 in Grantlee::VariableNode::render (this=0x5600a4c3efe0, stream=0x7ffe1861c4d0, c=0x7ffe1861c638) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/nodebuiltins.cpp:37
#19 0x00007f468024c8a0 in Grantlee::NodeList::render (this=this@entry=0x5600a41652c8, stream=stream@entry=0x7ffe1861c4d0, c=c@entry=0x7ffe1861c638) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/node.cpp:180
#20 0x00007f468025a0cf in Grantlee::TemplateImpl::render (this=this@entry=0x5600a4ab0200, stream=stream@entry=0x7ffe1861c4d0, c=c@entry=0x7ffe1861c638) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/template.cpp:92
#21 0x00007f468025a650 in Grantlee::TemplateImpl::render (this=0x5600a4ab0200, c=c@entry=0x7ffe1861c638) at /usr/src/debug/grantlee5-5.2.0-lp151.21.2.x86_64/templates/lib/template.cpp:79
#22 0x00007f468e848fad in MessageViewer::GrantleeHeaderFormatter::format (this=this@entry=0x5600a3103720, absolutePath=..., headerTemplate=..., displayExtraHeaders=..., isPrinting=isPrinting@entry=false, style=<optimized out>, message=<optimized out>, showEmoticons=<optimized out>) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/header/grantleeheaderformatter.cpp:496
#23 0x00007f468e84a4b7 in MessageViewer::GrantleeHeaderFormatter::toHtml (this=0x5600a3103720, settings=...) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/header/grantleeheaderformatter.cpp:333
#24 0x00007f468e8412de in MessageViewer::GrantleeHeaderStyle::format (this=0x5600a315e040, message=0x5600a415c8f0) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/header/grantleeheaderstyle.cpp:72
#25 0x00007f468e81d259 in MessageViewer::ViewerPrivate::writeMessageHeader (this=this@entry=0x5600a2d48130, aMsg=aMsg@entry=0x5600a415c8f0, vCardNode=vCardNode@entry=0x0, topLevel=topLevel@entry=true) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/viewer/viewer_p.cpp:1005
#26 0x00007f468e81d61a in MessageViewer::ViewerPrivate::parseContent (this=this@entry=0x5600a2d48130, content=0x5600a415c8f0) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/viewer/viewer_p.cpp:949
#27 0x00007f468e81dbfc in MessageViewer::ViewerPrivate::displayMessage (this=this@entry=0x5600a2d48130) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/viewer/viewer_p.cpp:898
#28 0x00007f468e81e58d in MessageViewer::ViewerPrivate::updateReaderWin (this=0x5600a2d48130) at /usr/src/debug/messagelib-19.12.1-lp151.155.1.x86_64/messageviewer/src/viewer/viewer_p.cpp:2276
#29 0x00007f46921d59e7 in QtPrivate::QSlotObjectBase::call (a=0x7ffe1861cdb0, r=0x5600a2d48130, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#30 doActivate<false> (sender=0x5600a2d481a0, signal_index=3, argv=0x7ffe1861cdb0) at kernel/qobject.cpp:3870
#31 0x00007f46921d02a2 in QMetaObject::activate (sender=sender@entry=0x5600a2d481a0, m=m@entry=0x7f4692655d00 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe1861cdb0) at kernel/qobject.cpp:3930
#32 0x00007f46921d95a7 in QTimer::timeout (this=this@entry=0x5600a2d481a0, _t1=...) at .moc/moc_qtimer.cpp:205
#33 0x00007f46921d9908 in QTimer::timerEvent (this=0x5600a2d481a0, e=<optimized out>) at kernel/qtimer.cpp:257
#34 0x00007f46921cd7f3 in QObject::event (this=0x5600a2d481a0, e=0x7ffe1861d110) at kernel/qobject.cpp:1361
#35 0x00007f469309fbac in QApplicationPrivate::notify_helper (this=this@entry=0x5600a29ab370, receiver=receiver@entry=0x5600a2d481a0, e=e@entry=0x7ffe1861d110) at kernel/qapplication.cpp:3693
#36 0x00007f46930a7180 in QApplication::notify (this=0x7ffe1861d880, receiver=0x5600a2d481a0, e=0x7ffe1861d110) at kernel/qapplication.cpp:3439
#37 0x00007f469219a7b8 in QCoreApplication::notifyInternal2 (receiver=0x5600a2d481a0, event=0x7ffe1861d110) at kernel/qcoreapplication.cpp:1092
#38 0x00007f46921f8ea9 in QTimerInfoList::activateTimers (this=0x5600a29b1ab0) at kernel/qtimerinfo_unix.cpp:643
#39 0x00007f46921f96a9 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#40 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:230
#41 0x00007f4684ae4e87 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#42 0x00007f4684ae5230 in ?? () from /usr/lib64/libglib-2.0.so.0
#43 0x00007f4684ae52bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#44 0x00007f46921f9a1c in QEventDispatcherGlib::processEvents (this=0x5600a2a30b20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#45 0x00007f469219903a in QEventLoop::exec (this=this@entry=0x7ffe1861d360, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#46 0x00007f46921a27b0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1400
#47 0x00005600a1793a5b in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kmail-19.12.1-lp151.134.1.x86_64/src/main.cpp:163
[Inferior 1 (process 2309) detached]

Reported using DrKonqi