[kmail2] [Bug 504149] New: Kmail crashes when starting fullscreen or resizing window

[Detlev Casanova]

https://bugs.kde.org/show_bug.cgi?id=504149

            Bug ID: 504149
           Summary: Kmail crashes when starting fullscreen or resizing
                    window
    Classification: Applications
           Product: kmail2
           Version: unspecified
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: detlev.casanova at gmail.com
  Target Milestone: ---

Application: kmail (6.4.1 (25.04.1))

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.0
Frameworks Version: 6.14.0
Operating System: Linux 6.14.6-arch1-1 x86_64
Windowing System: Wayland
Distribution: Arch Linux
DrKonqi: 6.3.5 [CoredumpBackend]

-- Information about the crash:
When starting kmail (or kontact), it crashes when the window is maximized or
resized (could test something else).

This started after the update to qt6-webengine 6.9 (downgrading to 6.8 fixed
it, but can;t do it anymore because of new libxml2 version requirements)

This only seem to happen on my computer that has an NVidia GPU (NVIDIA
Corporation GA102 [GeForce RTX 3080] (rev a1)) with the vulkan-nouveau driver.

When it starts as a small window, the email content part is not shown (only
mail list and accounts). If I start increasing the window's height, it looks
like the crash happens exactly when the email content view becomes visible,
therefore using the qtwebengine to show the email.

Let me know if you need more details.

The crash can be reproduced every time.

-- Backtrace (Reduced):
#5  nv50_resource_from_memobj () at
../mesa-25.0.5/src/gallium/drivers/nouveau/nv50/nv50_resource.c:155
#6  0x00007897a8ecdac7 in st_texture_create_from_memory () at
../mesa-25.0.5/src/mesa/state_tracker/st_cb_texture.c:3409
#7  st_texture_storage () at
../mesa-25.0.5/src/mesa/state_tracker/st_cb_texture.c:3490
#8  0x00007897a8eb97fd in texture_storage () at
../mesa-25.0.5/src/mesa/main/texstorage.c:609
#9  _mesa_texture_storage_memory () at
../mesa-25.0.5/src/mesa/main/texstorage.c:995


Reported using DrKonqi

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