linux-kernel - Re: crash under qemu, bisected to f2a6a7050109 ("x86: Convert the rest of the code to support p4d

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Message-ID: <20170331095617.5d5sxrk54uqzqfgf@pd.tnic>
Date:   Fri, 31 Mar 2017 11:56:17 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Corentin Labbe <clabbe.montjoie@...il.com>
Cc:     kirill.shutemov@...ux.intel.com, linux-arch@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: crash under qemu, bisected to f2a6a7050109 ("x86: Convert the
 rest of the code to support p4d_t")

On Fri, Mar 31, 2017 at 09:06:53AM +0200, Corentin Labbe wrote:
> hello
> 
> Since linux-next-20170329, my qemu virtual machine crash with:
> [    1.409213] Freeing unused kernel memory: 688K
> [    1.414790] Freeing unused kernel memory: 1920K
> [    1.415581] BUG: unable to handle kernel paging request at ffffc753f000f000
> [    1.416808] IP: ptdump_walk_pgd_level_core+0x2d1/0x430

https://lkml.kernel.org/r/20170328185522.5akqgfh4niqi3ptf@pd.tnic

Reportedly, latest tip/master should be fixed but I haven't tried it
yet.

-- 
Regards/Gruss,
    Boris.

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