Re: ioremap and dma cleanups and fixes for superh (2nd resend)

[John Paul Adrian Glaubitz]

Hi Geert!

On 7/15/20 10:27 AM, John Paul Adrian Glaubitz wrote:
>> Lemme gues: does commit 002ae7057069538a ("mm, dump_page(): do not crash
>> with invalid mapping pointer") in v5.8-rc1 help?
> 
> Hmm, it seems I already have that patch (I'm using Linus' main tree):
> 
> commit 002ae7057069538aa3afd500f6f60a429cb948b2
> Author: Vlastimil Babka <vbabka@xxxxxxx>
> Date:   Mon Jun 1 21:46:03 2020 -0700
> 
>     mm, dump_page(): do not crash with invalid mapping pointer

Okay, kernel 5.0.0 does not suffer from this bug. So I should be able to bisect
this particular issue.

I'm glad I don't have to start bisecting with earlier kernels because these
won't build easily with my current toolchain based on gcc-9.

Will report once I found the bad commit that introduced the problem.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
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