On Fri, Jun 05, 2026 at 08:35:13AM +0200, Philippe Mathieu-Daudé wrote: > On 29/5/26 18:29, Alexander Kanavin wrote: > > On Fri, 29 May 2026 at 18:10, Quan Sun via lists.openembedded.org > > <[email protected]> wrote: > > > This is likely a real QEMU 11.0 regression, but may not be in QEMU's > > > code itself. The QEMU 11.0 likely changed its display initialization to > > > be multi-threaded or reordered it, triggering a race condition in the > > > host's Wayland/EGL/Mesa stack. Maybe setting SDL_VIDEODRIVER=x11 could > > > solve the issue. > > > > > > This issue is different from the "glx: failed to create dri3 screen / > > > failed to load driver: vgem error" seen earlier, which was a missing GPU > > > driver issue on the host. > > > > > > If you have any detailed logs, please share with me and so I have more > > > contexts. > > > > 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. With regards, Daniel -- |: https://berrange.com ~~ https://hachyderm.io/@berrange :| |: https://libvirt.org ~~ https://entangle-photo.org :| |: https://pixelfed.art/berrange ~~ https://fstop138.berrange.com :|
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