Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751396AbXAFNp1 (ORCPT ); Sat, 6 Jan 2007 08:45:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751397AbXAFNp1 (ORCPT ); Sat, 6 Jan 2007 08:45:27 -0500 Received: from turing-police.cc.vt.edu ([128.173.14.107]:48798 "EHLO turing-police.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751396AbXAFNp0 (ORCPT ); Sat, 6 Jan 2007 08:45:26 -0500 Message-Id: <200701061344.l06DipYC003610@turing-police.cc.vt.edu> X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Andrew Morton , Venkatesh Pallipadi Cc: linux-kernel@vger.kernel.org Subject: Re: 2.6.20-rc3-mm1 - rewrite-lock-in-cpufreq-to-eliminate-cpufreq-hotplug-related-issues.patch In-Reply-To: Your message of "Thu, 04 Jan 2007 22:02:00 PST." <20070104220200.ae4e9a46.akpm@osdl.org> From: Valdis.Kletnieks@vt.edu References: <20070104220200.ae4e9a46.akpm@osdl.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1168091091_3205P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Sat, 06 Jan 2007 08:44:51 -0500 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1695 Lines: 57 --==_Exmh_1168091091_3205P Content-Type: text/plain; charset=us-ascii On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/ One of these 3 patches: rewrite-lock-in-cpufreq-to-eliminate-cpufreq-hotplug-related-issues.patch rewrite-lock-in-cpufreq-to-eliminate-cpufreq-hotplug-related-issues-fix.patch ondemand-governor-restructure-the-work-callback.patch causes an oops in kref_put during early boot ("unable to handle paging request at 00078"). Dell Latitude D820 laptop, Core2 T7200 with a 64-bit kernel. Hand-copied trace of the oops: kobject_put+0x19/0x1b cpufreq_cpu_put+0xd/0x1e cpufreq_get+0x45/0x51 handle_cpufreq_delayed_get+0x1e/0x41 run_workqueue+0x9c/0x14e worker_thread+0x0/0x145 worker_thread+0x10e/0x145 default_wake_function+0x0/0xf worker_thread+0x0/0x145 kthread+0x8/0x10b schedule_tail+0x38/0xa1 child_rip+0xa/0x12 kthread+0x0/0x10b child_rip+0x0/0x12 With the 3 listed patches plus: ondemand-governor-use-new-cpufreq-rwsem-locking-in-work-callback.patch reverted, the system boots OK. This ring any bells? --==_Exmh_1168091091_3205P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFFn6fTcC3lWbTT17ARAuRAAKDvF1DsEhoD3EiAwB6srxfKRsB0RwCgojFt 6nljOf4UqZwx1zy/xqIzZQI= =Vly7 -----END PGP SIGNATURE----- --==_Exmh_1168091091_3205P-- - 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/