Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752448AbaJCFA1 (ORCPT ); Fri, 3 Oct 2014 01:00:27 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:25196 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751096AbaJCFA0 (ORCPT ); Fri, 3 Oct 2014 01:00:26 -0400 Message-ID: <542E2D56.6090007@oracle.com> Date: Fri, 03 Oct 2014 01:00:06 -0400 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Linus Torvalds CC: Hugh Dickins , Dave Jones , Al Viro , Linux Kernel , Rik van Riel , Ingo Molnar , Michel Lespinasse , "Kirill A. Shutemov" , Mel Gorman Subject: Re: pipe/page fault oddness. References: <20140930033327.GA14558@redhat.com> <20140930160510.GA15903@redhat.com> <20140930162201.GC15903@redhat.com> <20140930164047.GA18354@redhat.com> <20140930182059.GA24431@redhat.com> <542C7B5E.2020000@oracle.com> <542D6981.3080405@oracle.com> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/02/2014 12:10 PM, Linus Torvalds wrote: > On Thu, Oct 2, 2014 at 8:04 AM, Sasha Levin wrote: >> > >> > I have a new one for you. I know it doesn't say "numa" anywhere, but I >> > haven't ever seen that trace before so I'll just go ahead and blame it >> > on your patch... > Fair enough, but the oops doesn't really give even a hint of what > could be wrong. > > The stack is clearly too deep: > > Thread overran stack, or stack corrupted > task.ti: ffff880dba2ec000 > RSP: ffff880dba2ebf48 > > but my patch shouldn't have added any deeper call-chains anywhere. For the record, I tweaked the environment to put some more pressure on the scheduler and found out what broke (which is not related to this thread at all). For the curious ones: https://lkml.org/lkml/2014/10/3/5 Thanks, Sasha -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/