Re: [PATCH v8 3/7] mm, devm_memremap_pages: Fix shutdown handling

[Jerome Glisse]

On Sun, Feb 10, 2019 at 12:09:08PM +0100, Krzysztof Grygiencz wrote:
> Dear Sir,
> 
> I'm using ArchLinux distribution. After kernel upgrade form 4.19.14 to
> 4.19.15 my X environment stopped working. I have AMD HD3300 (RS780D)
> graphics card. I have bisected kernel and found a failing commit:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v4.19.20&id=ec5471c92fb29ad848c81875840478be201eeb3f

This is a false positive, you should skip that commit. It will not impact
the GPU driver for your specific GPUs. My advice is to first bisect on
drivers/gpu/drm/radeon only.

Cheers,
Jérôme