gnome-initial-setup crashed in llvmpipe rendering via GTK+ in Fedora GNOME 43~rc testing
In Fedora downstream testing of the GNOME 43-rc update, one openQA test failed due to a crash in gnome-initial-setup. At the last green-outlined frame g-i-s is running (on first boot after system install) and the test is proceeding normally; then g-i-s crashes and the system is left stuck, just showing the desktop background and two empty black bars, and the test fails.
The backtrace is long and runs from g-i-s through GTK into mesa and llvmpipe (and hence LLVM); not sure where the fault lies, but filing on GTK to start with. It's possible this crash isn't really caused by the 43-rc update and is just some kind of transient thing that we happened to encounter there; it doesn't happen on every test, the same test run on UEFI passed (the failure was on BIOS, though I doubt that matters), and the same pair of tests (UEFI and BIOS) passed on our staging instance.
openQA tests on qemu VMs using virtio graphics.