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Date:   Mon, 25 Jan 2021 23:04:56 +0200
From:   Mike Rapoport <rppt@linux.ibm.com>
To:     Chris Wilson <chris@chris-wilson.co.uk>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 5.11-rc5
Message-ID: <20210125210456.GA196782@linux.ibm.com>
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On Mon, Jan 25, 2021 at 08:34:34PM +0000, Chris Wilson wrote:
> Quoting Linus Torvalds (2021-01-25 01:06:40)
> > Mike Rapoport (3):
> ...
> >       mm: fix initialization of struct page for holes in memory layout
> 
> We have half a dozen or so different machines in CI that are silently
> failing to boot, that we believe is bisected to this patch.
> 
> 17:56              tsa : ickle: dolphin: I hit the following patch in my bisection, and the hang is also dependent on kconfig
> 17:56              tsa : first bad commit: [d3921cb8be29ce5668c64e23ffdaeec5f8c69399] mm: fix initialization of struct page for holes in
>                          memory layout
> 17:57              tsa : couldn't reproduce on older CI kconfig, current one does it
>                          https://gitlab.freedesktop.org/gfx-ci/i915-infra/-/blob/master/kconfig/debug
> 
> Here's a boot dmesg from some affected machines from just before the merge
> with rc5:
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/shard-skl1/boot18.txt
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-skl-6600u/boot.html
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-bsw-cyan/boot.html
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-bdw-samus/boot.html

Is there any way to get early console from these machines?

> -Chris

-- 
Sincerely yours,
Mike.