linux-kernel - Re: [GIT PULL] x86/asm changes for v5.6

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Date:   Thu, 30 Jan 2020 13:06:17 +0100
From:   Borislav Petkov <bp@...e.de>
To:     Mike Rapoport <rppt@...ux.ibm.com>,
        Damian Tometzki <damian.tometzki@...ilie-tometzki.de>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        "Luck, Tony" <tony.luck@...el.com>, Ingo Molnar <mingo@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] x86/asm changes for v5.6

On Thu, Jan 30, 2020 at 01:59:59PM +0200, Mike Rapoport wrote:
> I've seen similar crash with my qemu/kvm and bisected it to that commit.
> 
> The hpet allocation is off-by-one and as a result hpet corrupts the memory
> somewhere in the slab

Oh wow, wonderful. Good that we have bisection in such cases - there's
no way in hell I'll debug it to that. ;-\

Thanks for saving me a bunch of time.

Damian, can you test the patch at the bottom of that mail:

https://lore.kernel.org/lkml/202001300450.00U4ocvS083098@www262.sakura.ne.jp/

?

Thx.

-- 
Regards/Gruss,
    Boris.

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