https://bugs.kde.org/show_bug.cgi?id=502684

            Bug ID: 502684
           Summary: Kmail crashes on start
    Classification: Applications
           Product: kmail2
           Version: 6.3.3
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: misc
          Assignee: kdepim-b...@kde.org
          Reporter: t...@uni-bremen.de
  Target Milestone: ---

Created attachment 180177
  --> https://bugs.kde.org/attachment.cgi?id=180177&action=edit
Debug log from gdb

SUMMARY
I use cachy os, a derivative of arch linux with an AMD 9070 XT gpu. After a
system update kmail shows graphical glibber in the message preview window. All
other windows and menus show proper text, only the message preview window below
the message list is affected. From all the other kde programms i use (kate,
dolphin, konsole only one wiget named "ChatAI" has the same problem. To
investigate further I installed a fresh version of cachy. In this installation
kmail doesn't even start on the first start, it show the window of the import
wizard, but the main window crashes when showing the welcome message.
Then i tried to start kmail on the pc of my wife (same os, same state of
software but nvidia graphic card). Kmail started without any problems. So I
assume its a problem with kmail and/or its libraries and the mesa dirver I use.
I tried mesa 25.0.3-2 and mesa-git 25.1.0-devel.203961.3d7bfcf9845-1. Same
results.

In the attachment you'll find a gdb log of the crash starting kmail. I thought
it might be easier to track a problem that happens right at the start of the
program.

It might be important to know that kmail worked on this os before the system
update. The mesa library was updated form version 25.0.2-2 (worked) to version
25.0.3-2.

STEPS TO REPRODUCE
1. Install an os with the above mentioned mesa version
2. Start Kmail
3. Crash?

OBSERVED RESULT
'kmail' terminated by signal SIGSEGV (Address boundary error)

EXPECTED RESULT
Normal start up

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: cachy os
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.9

ADDITIONAL INFORMATION

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