Re: next/master bisection: baseline.login on rk3288-rock2-square

From: Russell King - ARM Linux admin
Date: Thu Feb 04 2021 - 06:46:24 EST


On Thu, Feb 04, 2021 at 11:32:05AM +0000, Guillaume Tucker wrote:
> Yes it does fix the issue:
>
> https://lava.collabora.co.uk/scheduler/job/3173819
>
> with Ard's fix applied to this test branch:
>
> https://gitlab.collabora.com/gtucker/linux/-/commits/next-20210203-ard-fix/
>
>
> +clang +Nick
>
> It's worth mentioning that the issue only happens with kernels
> built with Clang. As you can see there are several other arm
> platforms failing with clang-11 builds but booting fine with
> gcc-8:

My gut feeling is that it isn't Clang specific - it's likely down to
the exact code/data placement, how things end up during decompression,
and exactly what state the cache ends up in.

That certainly was the case with the original regression.

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