Windows 11 WinForms BSOD kernel crash - UNEXPECTED_KERNEL_MODE_TRAP

Question

In 2017 I had described an issue in Windows 10 where "the kernel started crashing with BSOD very consistently after performing certain UI actions in our Eclipse SWT desktop application". This issue was fixed in KB4022716 which "Addressed issue (Error 0x7F) with Windows Forms (WinForms) that causes the system to crash after upgrading to the Creators Update." For reference, this was my original post: https://answers.microsoft.com/en-us/windows/forum/all/windows-10-creators-update-bsod-kernel-crash/b8ec01a2-4086-4048-8557-417eb79ce813

Now, the exact same issue is happening again in Windows 11. I have reproduced it in Windows 11 23H2 (OS Build 22631.3447) with the "2024-03" cumulative update. I also reproduced it again today after installing the "2024-04" cumulative update. I have not yet tried rolling back Windows updates to see when the regression was re-introduced.

Is Microsoft aware of this issue? Is this planned to be fixed (again) soon? Is there any other detail or workarounds anyone can share?

Answer 1

KB5036980 was released today, and I can also verify that the update fixes the issue.

Answer 2

KB5036980 solved the issue. After installation, We couldn't reproduce the problem.

Answer 3

Our team has found that 2024-04 Cumulative Update Preview for Windows 11 Version 23H2 for x64-based Systems (KB5036980) seems to have fixed this at least in limited testing. The build is 22631.3520.

Answer 4

For reference, I recall various reproduction examples being posted online when the issue first showed up in Windows 10:

https://stackoverflow.com/questions/43583651/windows-10-creators-updates-breaks-winforms-apps-bsod https://gist.github.com/Nevor/ed3719dad0cf66893e42a9ba024c9174

Perhaps such examples can also help someone reproduce this regression in Windows 11.

Answer 5

Colleagues have also reproduced with build 22631.3296.