Bug 832730

Summary:	media-libs/mesa-22.0.0_rc1 broken support for AMD Radeon HD 7850 (radeon 0000:0b:00.0: ring 0 stalled for more than...)
Product:	Gentoo Linux	Reporter:	Kobboi <gentoo>
Component:	Current packages	Assignee:	Gentoo X packagers <x11>
Status:	RESOLVED FIXED
Severity:	normal	CC:	gentoo, herrtimson, mail
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://gitlab.freedesktop.org/mesa/mesa/-/issues/5989
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	journalctl output

Description Kobboi 2022-02-05 00:40:29 UTC

Machine starts gdm at boot, but I never get a login prompt, the screen is either black or (most of the times in fact) just garbage (from some random piece of memory?).

Attached is the full journalctl output, from boot to forced shutdown. Things go wrong on line #2010:

feb 04 01:38:28 tanagra kernel: radeon 0000:0b:00.0: ring 0 stalled for more than 10134msec

but the action that triggered it of course started 10.134 seconds before that.

USE="X abi_x86_32 abi_x86_64 amd64 cpu_flags_x86_sse2 elibc_glibc gles2 kernel_linux llvm userland_GNU vaapi vdpau video_cards_intel video_cards_nouveau video_cards_radeon video_cards_radeonsi vulkan wayland zstd"

Downgrading to mesa-21.3.5 works fine.

Reproducible: Always

Comment 1 Kobboi 2022-02-05 00:41:06 UTC

Created attachment 764363 [details]
journalctl output

Comment 2 Kobboi 2022-02-05 00:42:46 UTC

0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850 / R7 265 / R9 270 1024SP]

Comment 3 Kobboi 2022-02-14 22:51:33 UTC

I git-bisected the problematic commit to be: https://gitlab.freedesktop.org/mesa/mesa/-/commit/5406ad93a9e61cc2088c7fd4b5d038db794bd4f5 . I have pinged the author on the freedesktop gitlab.

Comment 4 Kobboi 2022-02-22 14:25:35 UTC

This is fixed in latest mesa-9999

Comment 5 Matt Turner gentoo-dev

2022-02-22 22:41:05 UTC

Awesome, thank you for reporting the bug upstream and bisecting it. Since the commit is tagged with Fixes: it'll get cherry-picked to stable releases soon.

Comment 6 Kobboi 2022-06-10 17:14:56 UTC

A similar problem has re-appeared though not as easily reproducible (22.1.1 but probably earlier?). Just mentioning in case someone else is experiencing that too.