On Sun, 21 Apr 2019 at 10:33, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote: > > Hello all, > > I ran into an issue booting a graphical desktop (GNOME) on an ARM > based system with nvidia graphics and the nouveau driver (which is the > only one available on arm64). Bisect identified the following commit > as the culprit > > commit 9bf7933fc3f306bc4ce74ad734f690a71670178a > Author: Roman Penyaev <rpenyaev@xxxxxxx> > Date: Mon Mar 25 20:09:24 2019 +0100 > > io_uring: offload write to async worker in case of -EAGAIN > > and reverting that on top of v5.1-rc5 gives me a working system again. > > I don't see any errors in the kernel log, but the graphical desktop > never comes up. I can still ssh into the system and everything else > appears to work normally. > > I'm a bit out of my depth there, so could you please help me diagnose > this further? Any conditions I should check in the 'else' path? > Actually, I am struggling to understand why this particular commit would make a difference on a Debian Stretch based userland, since I don't suppose the new syscalls are being used there yet ...
