Segfault on session switch

[Waqar Ahmed]

can confirm it's crashing.

Also, not entirely sure about that change. It doesn't crash if the old
filter is reinstalled in the destructor

On Tue, Jun 28, 2022 at 11:07 AM Alain Laporte
<alain.laporte12345 at gmail.com> wrote:
>
> Segfault happens in a code added by this commit => https://invent.kde.org/utilities/kate/-/commit/d6d831d5e2394a57207054660b504c5be7a29343
>
> No more information for now.
>
> Alain.
>
>
> Le mar. 28 juin 2022 à 07:53, Alain Laporte <alain.laporte12345 at gmail.com> a écrit :
>>
>> I have found how to load symbols. Crash happens in the LSPClientPlugin =>
>>
>> (gdb) bt
>> #0  0x00007f68ff441a28 in QLoggingCategory::categoryName (this=<error reading variable: Cannot access memory at address 0x7ffd9d1ffff8>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qloggingcategory.h:71
>> #1  0x00007f68ff458f91 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:60
>> #2  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #3  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #4  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #5  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #6  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #7  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #8  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #9  0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #10 0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #11 0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #12 0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #13 0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #14 0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #15 0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>> #16 0x00007f68ff459003 in myCategoryFilter (category=0x7f6932d37d90 <LOG_KWINDOWSYSTEM()::category>) at /home/alaporte/projects/kde/src/kde/applications/kate/addons/lspclient/lspclientplugin.cpp:64
>>
>> Alain.
>>
>>
>> Le lun. 27 juin 2022 à 23:07, Alain Laporte <alain.laporte12345 at gmail.com> a écrit :
>>>
>>> Hi,
>>>
>>> On the master (all dependencies are also on the master), Kate segfault on session switch:
>>> * start Kate
>>> * open a session
>>> * go in Sessions/All Sessions to choose a new session
>>>
>>> I have generated a core dump, but GDB can't find symbols...  Where symbols are located?
>>>
>>> Do you reproduce the segfault?
>>>
>>> Alain.