linux-kernel - Re: ce56a86e2a ("x86/mm: Limit mmap() of /dev/mem to valid physical addresses"): kernel BUG at arch/x86/mm/physaddr.c:79!

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Message-ID: <20171026163911.dnovh4zaik5qumtt@gmail.com>
Date:   Thu, 26 Oct 2017 18:39:11 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Craig Bergstrom <craigb@...gle.com>
Cc:     Sander Eikelenboom <linux@...elenboom.it>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Fengguang Wu <fengguang.wu@...el.com>, wfg@...ux.intel.com,
        linux-kernel@...r.kernel.org, LKP <lkp@...org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: ce56a86e2a ("x86/mm: Limit mmap() of /dev/mem to valid physical
 addresses"): kernel BUG at arch/x86/mm/physaddr.c:79!


* Craig Bergstrom <craigb@...gle.com> wrote:

> Yes, not much time left for 4.14, it might be reasonable to pull the
> change out since it's causing problems. [...]

Ok, I'll queue up a revert tomorrow morning and send it to Linus ASAP if there's 
no good fix by then. In hindsight I should have queued it for v4.15 ...

Thanks,

	Ingo