Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757221AbYCEQbO (ORCPT ); Wed, 5 Mar 2008 11:31:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753040AbYCEQa7 (ORCPT ); Wed, 5 Mar 2008 11:30:59 -0500 Received: from hc65212de.dhcp.vt.edu ([198.82.18.222]:44941 "EHLO hc65212de.dhcp.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752997AbYCEQa6 (ORCPT ); Wed, 5 Mar 2008 11:30:58 -0500 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: 2.6.25-rc3-mm1 - PROFILE_LIKELY redux.. In-Reply-To: Your message of "Tue, 04 Mar 2008 01:19:28 PST." <20080304011928.e8c82c0c.akpm@linux-foundation.org> From: Valdis.Kletnieks@vt.edu References: <20080304011928.e8c82c0c.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1204701694_3825P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Wed, 05 Mar 2008 02:21:34 -0500 Message-ID: <4911.1204701694@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2848 Lines: 72 --==_Exmh_1204701694_3825P Content-Type: text/plain; charset=us-ascii On Tue, 04 Mar 2008 01:19:28 PST, Andrew Morton said: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.25-rc3/2.6.25-rc3-mm1/ x86_64, mostly 64-bit userspace, Dell Latitude D820, T7200 Core2 Duo... So I gave CONFIG_PROFILE_LIKELY another try, and this time the thing actually booted and got into userspace, but stuff started dying in rc.sysinit. According to dmesg, they all died at the same place: [ 4.841459] rename_device[686]: segfault at ffffffffff7009be ip ffffffffff7009be sp 7fff7ccfb958 error 14 [ 4.842384] rename_device[984]: segfault at ffffffffff7009be ip ffffffffff7009be sp 7fffb6fe9c68 error 14 [ 4.843298] rename_device[981]: segfault at ffffffffff7009be ip ffffffffff7009be sp 7fffc18504c8 error 14 [ 4.844184] rename_device[983]: segfault at ffffffffff7009be ip ffffffffff7009be sp 7fff512c8f48 error 14 [ 6.099486] rename_device[1513]: segfault at ffffffffff7009be ip ffffffffff7009be sp 7fff47e88ad8 error 14 [ 5.769289] rename_device[1516]: segfault at ffffffffff7009be ip ffffffffff7009be sp 7fffa317edd8 error 14 [ 7.457229] fsck.ext3[1576]: segfault at ffffffffff7009be ip ffffffffff7009be sp 7fff3be947f8 error 14 (Note that not everything died - some renames, an fsck, and maybe I missed something - but a lot of other stuff worked (dmesg, grep, cat, uname that I ran, and a lot of things that rc.sysinit invoked - so that may tell us something...) /proc/self/maps says that's near: ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] And my System.map says: ffffffff80855a0c A __bss_stop ffffffff80855a0c A _end ffffffffff600000 T vgettimeofday ffffffffff600100 t vread_tsc ffffffffff600122 t vread_hpet ffffffffff600140 D __vsyscall_gtod_data ffffffffff600400 T vtime ffffffffff600800 T vgetcpu ffffffffff600870 D __vgetcpu_mode ffffffffff600880 D __jiffies ffffffffff600c00 T venosys_1 ffffffffff700000 A VDSO64_PRELINK ffffffffff7005b0 A VDSO64_jiffies ffffffffff7005b8 A VDSO64_vgetcpu_mode ffffffffff7005c0 A VDSO64_vsyscall_gtod_data So we're in the same 4K as the VDSO64_* values, but some 0x4fe past the gtod_data. Anybody got a hint as to what the heck it was doing? --==_Exmh_1204701694_3825P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFHzkn+cC3lWbTT17ARAlGWAJ9GPaDTfnDxR91y82O/o3vUpfxhnACfeU8K poiCYrZ5aigNyUgCKmmEKtc= =F/90 -----END PGP SIGNATURE----- --==_Exmh_1204701694_3825P-- -- 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/