Re: [PATCH 0/1] MR9177: win32u: Fix deadlock caused by nested locking.

[Rémi Bernon (＠rbernon)]

On Wed Oct 15 06:36:25 2025 +0000, Zhao Yi wrote:
> This situation occurs when NtUserUpdateLayeredWindow is called. Within
> the NtUserUpdateLayeredWindow function, there exists the following call
> sequence: window_surface_lock() → NtGdiAlphaBlend() →
> window_surface_unlock(). However, the implementation of the
> NtGdiAlphaBlend() function calls the windrv_GetImage() function, which
> internally invokes lock_surface() and unlock_surface().

I see, thank you. This happens when UpdateLayeredWindow is called with hdc_src set to one of the window's self DC right? We might be able to detect this case and handle it separately.