On Fri, 5 Jun 2026 at 10:10, Daniel P. Berrangé <[email protected]> wrote: > > > It's the same issue, I assure you. Qemu 10.x prints nothing and simply > > > starts, while qemu 11.x first tries glx/dri3 , then wayland/egl/vgem > > > (even though there's no wayland running on the build hosts), and then > > > finally crashes, with the traceback that RP provided. > > > > > > I don't think it's a race condition, as the failure is deterministic, > > > but I agree that something has changed in qemu's GL initialization > > > sequence. > > > > Cc'ing Marc-André & Akihiko > > > > Context: > > > > https://lore.kernel.org/openembedded-core/7da33301e8a0bae93a33695b4fd41f67a08e1b9f.ca...@linuxfoundation.org/ > > If it is an suspected regression between 10.2 and 11.0, then > I'd suggest someone who is able to reproduce the issue reliably > should do a 'git bisect' to narrow it down precisely.
I've done additional testing, and I can confirm: 1. Reverting the following commit fixes the issue: commit 52053b7e0a0e285ce3448b830053b05fb0a9b1a8 Author: Pierre-Eric Pelloux-Prayer <[email protected]> Date: Wed Mar 4 16:50:30 2026 +0000 ui/sdl2: Implement dpy dmabuf functions 2. Updating to 11.0.1 does not fix the issue. It includes a fix for a different, but related problem: 674221887f ui/sdl2: Fix assumption of EGL presence at runtime Note that the environment we run in is X11 without wayland, e.g. a XTigervnc server that provides a X11 display. Thanks, Alex
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