linux-kernel - Re: [PATCH] mm: trigger panic on bad page or PTE states if panic_on

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Message-ID: <20150316110033.GA20546@node.dhcp.inet.fi>
Date:	Mon, 16 Mar 2015 13:00:33 +0200
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Christian Borntraeger <borntraeger@...ibm.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: trigger panic on bad page or PTE states if
 panic_on_oops

On Mon, Mar 16, 2015 at 09:37:01AM +0100, Christian Borntraeger wrote:
> while debugging a memory management problem it helped a lot to
> get a system dump as early as possible for bad page states.
> 
> Lets assume that if panic_on_oops is set then the system should
> not continue with broken mm data structures.

bed_pte is not an oops.

Probably we should consider putting VM_BUG() at the end of these
functions instead.

-- 
 Kirill A. Shutemov
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