[Bug 219787] New: Guest's applications crash with EXCEPTION_SINGLE_STEP (0x80000004)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219787

            Bug ID: 219787
           Summary: Guest's applications crash with EXCEPTION_SINGLE_STEP
                    (0x80000004)
           Product: Virtualization
           Version: unspecified
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: high
          Priority: P3
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: rangemachine@gmail.com
        Regression: No

Created attachment 307665
  --> https://bugzilla.kernel.org/attachment.cgi?id=307665&action=edit
Debugger attached to Steam.exe

Overview
========
Linux 6.13 update introduced problem with Windows guest's applications on AMD
processors. Several applications crash with EXCEPTION_SINGLE_STEP (0x80000004).
The list of confirmed software: CrystalDiskMark, Visual Studio Code, Steam,
Looking Glass server, Windows Tweaker. 
It never happened prior 6.13 update. I also checked 6.13.3rc and 6.14.1rc
updates, problem persists there too. I did quick check differences in KVM/SVM
between 6.12 and 6.13 and did not found anything that could set trapflag, so
problem could be somewhere deeper inside kernel.

Steps to reproduce
==================
Run VM with Windows guest, launch any software from the list.

Hardware
========
CPU: AMD Ryzen 7 9800X3D (16) @ 5.27 GHz
MB: TUF GAMING X870-PLUS WIFI

Additional Information
======================
Steam crashes when downloading game, Looking Glass crashes on WinAPI
QueryPerformanceCountrer call. Tested on Window 11 22H2/23H2/24H2.

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