Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759488Ab3EWOpQ (ORCPT ); Thu, 23 May 2013 10:45:16 -0400 Received: from mail-ve0-f182.google.com ([209.85.128.182]:50719 "EHLO mail-ve0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758002Ab3EWOpL (ORCPT ); Thu, 23 May 2013 10:45:11 -0400 MIME-Version: 1.0 In-Reply-To: <519DCE2A.4010801@meduna.org> References: <5195ED8B.7060002@meduna.org> <1369183168.6828.168.camel@gandalf.local.home> <519CBB30.3060200@redhat.com> <20130522134111.33a695c5@cuia.bos.redhat.com> <519D08B0.8050707@meduna.org> <1369246316.6828.176.camel@gandalf.local.home> <519D0CAB.7020800@meduna.org> <519D0FF8.5080200@redhat.com> <519D118B.6010306@zytor.com> <519D11BF.5000604@redhat.com> <519DCE2A.4010801@meduna.org> Date: Thu, 23 May 2013 07:45:09 -0700 X-Google-Sender-Auth: oGtRljN9ZpGI2bM0lALsbviAXsg Message-ID: Subject: Re: [PATCH] mm: fix up a spurious page fault whenever it happens From: Linus Torvalds To: Stanislav Meduna Cc: Rik van Riel , "H. Peter Anvin" , Steven Rostedt , "linux-rt-users@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Thomas Gleixner , Ingo Molnar , "the arch/x86 maintainers" , Hai Huang Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 742 Lines: 18 On Thu, May 23, 2013 at 1:07 AM, Stanislav Meduna wrote: > > It did not crash overnight, but it also does not show any > minor fault counted for the threads Page faults that don't cause us to map a page (ie a spurious one, or one that just updates dirty/accessed bits) don't show up as even minor faults. Thing of the major/minor as "mapping activity" not a page fault count. So if this is due to some stuck TLB entry, that wouldn't show up anyway. Linus -- 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/