Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752641AbbLNP1P (ORCPT ); Mon, 14 Dec 2015 10:27:15 -0500 Received: from gum.cmpxchg.org ([85.214.110.215]:49688 "EHLO gum.cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752095AbbLNP1M (ORCPT ); Mon, 14 Dec 2015 10:27:12 -0500 Date: Mon, 14 Dec 2015 10:26:53 -0500 From: Johannes Weiner To: kernel test robot Cc: lkp@01.org, LKML , Andrew Morton , Jason Baron , "David S. Miller" , Stephen Rothwell Subject: Re: [lkp] [mm] 3f5d849cb0: page dumped because: VM_BUG_ON_PAGE(!PageLocked(page)) Message-ID: <20151214152653.GB13289@cmpxchg.org> References: <87a8pdecv1.fsf@yhuang-dev.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87a8pdecv1.fsf@yhuang-dev.intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2121 Lines: 39 On Mon, Dec 14, 2015 at 02:57:38PM +0800, kernel test robot wrote: > FYI, we noticed the below changes on > > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > commit 3f5d849cb0b7e177c363f0c36732326f184b495b ("mm: memcontrol: switch to the updated jump-label API") > > > +------------------------------------------------+------------+------------+ > | | bf344f1f72 | 3f5d849cb0 | > +------------------------------------------------+------------+------------+ > | boot_successes | 4 | 3 | > | boot_failures | 50 | 53 | > | IP-Config:Auto-configuration_of_network_failed | 50 | 52 | > | BUG:kernel_test_crashed | 0 | 1 | > | kernel_BUG_at_mm/filemap.c | 0 | 1 | > | invalid_opcode:#[##]SMP | 0 | 1 | > | RIP:unlock_page | 0 | 1 | > | Kernel_panic-not_syncing:Fatal_exception | 0 | 1 | > +------------------------------------------------+------------+------------+ > > It is possible that this is a false positive, because the reproduction > is too low 1/48. > > > [ 13.114169] page:ffff8800135f1780 count:18 mapcount:10 mapping:ffff880015b25e71 index:0x7f08a73a0 > [ 13.115380] flags: 0x40068(uptodate|lruudevd[203]: worker [224] did not accept message -1 (Connection refused), kill it > |active|swapbacked) > [ 13.117074] page dumped because: VM_BUG_ON_PAGE(!PageLocked(page)) I'm fairly certain this is this unlocked page issue: http://www.spinics.net/lists/kernel/msg2142719.html The fix went into Linus's tree only yesterday: dfd01f0 ("sched/wait: Fix the signal handling fix") -- 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/