[Akonadi] [Bug 445249] New: Akonadi crash after unplugging Thunderbolt dock with attached monitor on Wayland

[Philipp Reichmuth]

https://bugs.kde.org/show_bug.cgi?id=445249

            Bug ID: 445249
           Summary: Akonadi crash after unplugging Thunderbolt dock with
                    attached monitor on Wayland
           Product: Akonadi
           Version: unspecified
          Platform: openSUSE RPMs
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: server
          Assignee: kdepim-bugs at kde.org
          Reporter: philipp.reichmuth at gmail.com
  Target Milestone: ---

Application: akonadiserver (5.18.3 (21.08.3))

Qt Version: 5.15.2
Frameworks Version: 5.87.0
Operating System: Linux 5.14.14-1-default x86_64
Windowing System: Wayland
Distribution: "openSUSE Tumbleweed"
DrKonqi: 5.23.2 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
Unplugged my Thunderbolt dock, which has a monitor attached via DisplayPort, in
order to fix an issue where the monitor would not go to the resolution I
selected in System Settings.

- Unusual behavior I noticed:
The Wayland session was behaving strangely prior to unplugging. 
The monitor is capable of 3840x2160 resolution and has supported this
resolution in KWin Wayland in the past. I can see and select this resolution in
System Settings.

Since this morning (with no user changes to my KDE configuration or packages),
the monitor comes up with 2560x1440. I can set it to 3840x2160 in System
Settings. However, when I apply the settings, the monitor will go to 2560x1440
anyway (as confirmed by the monitor's HUD), and when I enter System Settings
again, I see it again at 2560x1440.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Akonadi Server (akonadiserver), signal: Segmentation fault
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = {<No data
fields>}}
[KCrash Handler]
#6  std::default_delete<Akonadi::Server::Connection>::operator() (__ptr=0x111,
this=<optimized out>) at /usr/include/c++/11/bits/unique_ptr.h:79
#7  std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> >::~unique_ptr
(this=<optimized out>, this=<optimized out>) at
/usr/include/c++/11/bits/unique_ptr.h:361
#8  __gnu_cxx::new_allocator<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> >
>::destroy<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> > > (__p=<optimized out>,
this=<optimized out>) at /usr/include/c++/11/ext/new_allocator.h:168
#9 
std::allocator_traits<std::allocator<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> > >
>::destroy<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> > > (__p=<optimized out>,
__a=...) at /usr/include/c++/11/bits/alloc_traits.h:531
#10 std::vector<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> >,
std::allocator<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> > > >::_M_erase
(__position=std::unique_ptr<Akonadi::Server::Connection> = {get() = {<No data
fields>}}, this=<optimized out>) at /usr/include/c++/11/bits/vector.tcc:177
#11 std::vector<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> >,
std::allocator<std::unique_ptr<Akonadi::Server::Connection,
std::default_delete<Akonadi::Server::Connection> > > >::erase
(__position=std::unique_ptr<Akonadi::Server::Connection> = {get() = {<No data
fields>}}, this=<optimized out>) at /usr/include/c++/11/bits/stl_vector.h:1431
#12 Akonadi::Server::AkonadiServer::connectionDisconnected (this=<optimized
out>) at
/usr/src/debug/akonadi-server-21.08.3-1.1.x86_64/src/server/akonadi.cpp:234
#13 0x00007fd6f95f8fee in QObject::event (this=0x7ffe83590c90,
e=0x7fd6a4005970) at kernel/qobject.cpp:1314
#14 0x00007fd6f95cc9cf in doNotify (event=0x7fd6a4005970,
receiver=0x7ffe83590c90) at kernel/qcoreapplication.cpp:1154
#15 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>,
this=<optimized out>) at kernel/qcoreapplication.cpp:1140
#16 QCoreApplication::notifyInternal2 (receiver=0x7ffe83590c90,
event=0x7fd6a4005970) at kernel/qcoreapplication.cpp:1064
#17 0x00007fd6f95cfa47 in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x55eb0afff980) at
kernel/qcoreapplication.cpp:1821
#18 0x00007fd6f9624853 in postEventSourceDispatch (s=s at entry=0x55eb0b03da30) at
kernel/qeventdispatcher_glib.cpp:277
#19 0x00007fd6f7852d4f in g_main_dispatch (context=0x55eb0b03d4d0) at
../glib/gmain.c:3381
#20 g_main_context_dispatch (context=0x55eb0b03d4d0) at ../glib/gmain.c:4099
#21 0x00007fd6f78530d8 in g_main_context_iterate
(context=context at entry=0x55eb0b03d4d0, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at ../glib/gmain.c:4175
#22 0x00007fd6f785318f in g_main_context_iteration (context=0x55eb0b03d4d0,
may_block=1) at ../glib/gmain.c:4240
#23 0x00007fd6f9623ed4 in QEventDispatcherGlib::processEvents
(this=0x55eb0b03cbf0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#24 0x00007fd6f95cb3fb in QEventLoop::exec (this=this at entry=0x7ffe83590ad0,
flags=..., flags at entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:69
#25 0x00007fd6f95d36e0 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#26 0x000055eb08ff7559 in AkApplicationBase::exec (this=0x7ffe83590c60) at
/usr/src/debug/akonadi-server-21.08.3-1.1.x86_64/src/shared/akapplication.cpp:107
#27 main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/akonadi-server-21.08.3-1.1.x86_64/src/server/main.cpp:65
[Inferior 1 (process 3075) detached]

The reporter indicates this bug may be a duplicate of or related to bug 442147.

Possible duplicates by query: bug 444916, bug 444909, bug 444534, bug 444446,
bug 444421.

Reported using DrKonqi

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