AOSC/Retro mesa和xf86-video-ati导致glxgears异常

[lunzima]

Bug description

现象1: 软件源中xf86-video-ati版本低导致运行glxgears/glxinfo时Xorg直接crash
从abbs中拉取retro分支最新版本直接编译即可解决问题
现象2: 软件源/abbs中mesa-amber版本运行glxgears渲染错误，其他软件也出现渲染问题
降级至mesa的20.3.x版本即可解决问题，但需要解决与其他包的依赖关系问题
现象3: 尝试拉取abbs中旧commit来编译mesa 20.3.1版本时发现其依赖buildkit中现已安装的mesa包提供的glapi库，存在循环依赖问题，需要进行一些处理，另外llvm-runtime依赖mesa>21，也需要解决依赖

Steps to reproduce

发行版: AOSC/Retro
复现现象1/现象2用硬件:
IBM Thinkpad T42, Pentium M 735, Mobility Radeon 7500

Update channel(s)

stable

Package and version

修复现象1的xf86-video-ati版本为22.0.0

[arkadijs]

I can confirm xf86-video-ati 19.1.0 is not good for anything GLX:

[  2773.600] (EE) Backtrace:
[  2773.601] (EE) 0: /usr/bin/X (xorg_backtrace+0x4f) [0x622249]
[  2773.601] (EE) 1: /usr/bin/X (0x4d1000+0x15455f) [0x62555f]
[  2773.601] (EE) 2: linux-gate.so.1 (__kernel_rt_sigreturn+0x0) [0xb7f04580]
[  2773.601] (EE) 3: /usr/bin/X (0x4d1000+0xf15db) [0x5c25db]
[  2773.601] (EE) 4: /usr/lib/xorg/modules/drivers/radeon_drv.so (0xb7538000+0x22885) [0xb755a885]
[  2773.601] (EE) 5: /usr/bin/X (0x4d1000+0x12b3ad) [0x5fc3ad]
[  2773.601] (EE) 6: /usr/bin/X (DRI2CopyRegion+0x60) [0x5fcc55]
[  2773.601] (EE) 7: /usr/bin/X (0x4d1000+0x12bef2) [0x5fcef2]
[  2773.601] (EE) 8: /usr/bin/X (0x4d1000+0x12d5ce) [0x5fe5ce]
[  2773.601] (EE) 9: /usr/bin/X (0x4d1000+0x4206a) [0x51306a]
[  2773.601] (EE) 10: /usr/bin/X (0x4d1000+0x45915) [0x516915]
[  2773.601] (EE) 11: /usr/bin/X (0x4d1000+0x32ea2) [0x503ea2]
[  2773.602] (EE) 12: /usr/lib/libc.so.6 (0xb7a23000+0x2251d) [0xb7a4551d]
[  2773.602] (EE) 13: /usr/lib/libc.so.6 (0xb7a23000+0x22662) [0xb7a45662]
[  2773.602] (EE) 14: /usr/bin/X (_start+0x27) [0x503ed7]
[  2773.602] (EE) 
[  2773.602] (EE) Segmentation fault at address 0x4
[  2773.602] (EE) 
Fatal server error:
[  2773.602] (EE) Caught signal 11 (Segmentation fault). Server aborting

Rebuilding and installing 22.0.0 fixes the issue with Radeon RV515 / X1300 Pro AGP.

[arkadijs]

Issue documented upstream:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/6638

Setting tcl_mode=0 fixes r200 driver issue in 21.3.9 / Amber.
Downgrading to 20.3.5 also fixes it.
Tested on RV280 / Radeon 9250. I have no R100 hardware, sorry.

r200 diff between 20.3 and Amber is pretty small yet unlikely to be the source of bad transform setup (as mentioned in the issue).

git diff origin/20.3 amber -- src/mesa/drivers/dri/r200

Commits allegedly of interest:
https://gitlab.freedesktop.org/mesa/mesa/-/commit/dc995adec5ef36dbda43d9dd7f698ff8d6a70f2c
https://gitlab.freedesktop.org/mesa/mesa/-/commit/4c751ad67aa2bbde5897030495f86e31c9e1fda7