From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yh0-f44.google.com (mail-yh0-f44.google.com [209.85.213.44]) by kanga.kvack.org (Postfix) with ESMTP id 3107F6B006C for ; Mon, 22 Dec 2014 15:38:39 -0500 (EST) Received: by mail-yh0-f44.google.com with SMTP id c41so2624195yho.17 for ; Mon, 22 Dec 2014 12:38:38 -0800 (PST) Received: from userp1040.oracle.com (userp1040.oracle.com. [156.151.31.81]) by mx.google.com with ESMTPS id l6si9071692ykc.15.2014.12.22.12.38.37 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 22 Dec 2014 12:38:38 -0800 (PST) Message-ID: <54988142.40207@oracle.com> Date: Mon, 22 Dec 2014 15:38:26 -0500 From: Sasha Levin MIME-Version: 1.0 Subject: Re: mm: NULL ptr deref in unlink_file_vma References: <549832E2.8060609@oracle.com> <20141222180102.GA8072@node.dhcp.inet.fi> <20141222180420.GA20261@node.dhcp.inet.fi> <1419275072.8812.1.camel@stgolabs.net> In-Reply-To: <1419275072.8812.1.camel@stgolabs.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Davidlohr Bueso , "Kirill A. Shutemov" Cc: "linux-mm@kvack.org" , LKML , Andrew Morton , Dave Jones On 12/22/2014 02:04 PM, Davidlohr Bueso wrote: > Sasha, does this still occur if you revert c8475d144abb? On 12/22/2014 02:14 PM, Kirill A. Shutemov wrote: > Sasha could you check if you hit untrack_pfn()? I'm afraid I only hit this issue once, unlike the other once which was bisected down. I'm trying to play with it a bit to see if I can "help" it reproduce, but no luck so far. Thanks, Sasha -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org