From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761482AbYEFBGz (ORCPT ); Mon, 5 May 2008 21:06:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755425AbYEFBGo (ORCPT ); Mon, 5 May 2008 21:06:44 -0400 Received: from rv-out-0506.google.com ([209.85.198.224]:27980 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755310AbYEFBGn (ORCPT ); Mon, 5 May 2008 21:06:43 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:mime-version:content-type:content-transfer-encoding:content-disposition; b=pNzGZChtYA2B1pxJXcGydP/dbeo9sg4hIj8VoVjr81oyhjXjf28tEdaOIgdDIjmxucfg17ZtEkrCqD2i2LyJEVs6JAs2naZ5d7pbxxJvHs06B8L3s6JO5wlmNc9LlrDyqYrgf/CniEQb9vyh+1/bM1r/f5oOoogTNJEy/uyWmm4= Message-ID: Date: Tue, 6 May 2008 09:06:40 +0800 From: "Jeff Chua" To: "Linus Torvalds" Subject: Re: Linux 2.6.26-rc1 - pgtable_32.c:178 pmd_bad Cc: "Linux Kernel Mailing List" MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, May 4, 2008 at 3:38 AM, Linus Torvalds wrote: > > So this merge window was somewhat rocky in the sense that there was a lot > of arguments about it, but at the same time I at least personally think > that from a technical angle, we had somewhat less scary stuff going on > than has been almost the rule lately. I'm seeing this on a Dell 2950 (quad-core) during boot up, but not on my IBM X60s (dual-core). This is using the lastest git 2.6.26-rc1. Just checking to see if this is a known bug before doing the bisect -- more painful on the 2950 to reboot. Thanks, Jeff. Freeing unused kernel memory: 252k freed ------------[ cut here ]------------ WARNING: at arch/x86/mm/pgtable_32.c:178 pmd_bad+0xa3/0xe3() Modules linked in: Pid: 1226, comm: khelper Not tainted 2.6.26-rc1 #4 [] warn_on_slowpath+0x40/0x65 [] kmap_atomic+0x11/0x14 [] kunmap_atomic+0x4f/0x78 [] get_page_from_freelist+0x33a/0x3da [] __alloc_pages_internal+0x98/0x356 [] kmap_atomic_prot+0x102/0x137 [] kunmap_atomic+0x4f/0x78 [] handle_mm_fault+0xb70/0xbba [] pmd_bad+0xa3/0xe3 [] follow_page+0x109/0x30a [] get_user_pages+0x351/0x3c0 [] get_arg_page+0x2b/0x7b [] copy_strings+0xcd/0x173 [] copy_strings_kernel+0x19/0x27 [] do_execve+0xd9/0x18f [] sys_execve+0x2a/0x4f [] syscall_call+0x7/0xb [] i8042_probe+0x29f/0x508 [] kernel_execve+0x14/0x18 [] ____call_usermodehelper+0x0/0x105 [] ____call_usermodehelper+0xfb/0x105 [] ____call_usermodehelper+0x0/0x105 [] kernel_thread_helper+0x7/0x10 ======================= ---[ end trace 6aae36751415b63a ]--- Adding 27350652k swap on /dev/sda3. Priority:-1 extents:1 across:27350652k