On Mon, Aug 2, 2021 at 8:29 PM Duncan <j.duncan@xxxxxxx> wrote: > > [Not subscribed so please CC me. Manual quoting after using lore's > in-reply-to functionality. First time doing that so hope I got it > right.] > > Mikael Pettersson <mikpelinux@xxxxxxxxx> wrote... > > Booting 5.14.0-rc4 on my box with Radeon graphics breaks with > > > > [drm:radeon_ttm_init [radeon]] *ERROR* failed initializing buffer > > object driver(-19). > > radeon 0000:01:00.0: Fatal error during GPU init > > Seeing this here too. amdgpu on polaris-11, on an old amd-fx6100 > system. > > > after which the screen goes black for the rest of kernel boot > > and early user-space init. > > *NOT* seeing that. However, I have boot messages turned on by default > and I see them as usual, only it stays in vga-console mode instead of > switching to framebuffer after early-boot. I'm guessing MP has a > high-res boot-splash which doesn't work in vga mode, thus the > black-screen until the login shows up. Yes, I have the Fedora boot splash enabled. > > Once the console login shows up the screen is in some legacy low-res > > mode and Xorg can't be started. > > > > A git bisect between v5.14-rc3 (good) and v5.14-rc4 (bad) identified > > > > # first bad commit: [69de4421bb4c103ef42a32bafc596e23918c106f] > > drm/ttm: Initialize debugfs from ttm_global_init() > > > > Reverting that from 5.14.0-rc4 gives me a working kernel again. > > > > Note that I have > > # CONFIG_DEBUG_FS is not set > > That all matches here, including the unset CONFIG_DEBUG_FS and > confirming the revert on 5.14.0-rc4 works. Thanks for the confirmation.
