Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753081Ab1EPRD5 (ORCPT ); Mon, 16 May 2011 13:03:57 -0400 Received: from lennier.cc.vt.edu ([198.82.162.213]:58781 "EHLO lennier.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750938Ab1EPRDz (ORCPT ); Mon, 16 May 2011 13:03:55 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.3-dev To: Tejun Heo Cc: Linus Torvalds , Jeff Garzik , Michael Leun , linux-ide@vger.kernel.org, Linux PM mailing list , LKML , "Rafael J. Wysocki" , Jian Peng Subject: Re: [PATCH v2.6.38-rc7] Revert "libata: ahci_start_engine compliant to AHCI spec" In-Reply-To: Your message of "Sat, 14 May 2011 12:28:04 +0200." <20110514102804.GB23665@htj.dyndns.org> From: Valdis.Kletnieks@vt.edu References: <201105120025.34531.rjw@sisk.pl> <201105132222.11582.rjw@sisk.pl> <201105132244.29605.rjw@sisk.pl> <20110514101807.GA23665@htj.dyndns.org> <20110514102804.GB23665@htj.dyndns.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1305565337_2487P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Mon, 16 May 2011 13:02:17 -0400 Message-ID: <20633.1305565337@localhost> X-Mirapoint-Received-SPF: 198.82.161.152 auth3.smtp.vt.edu Valdis.Kletnieks@vt.edu 2 pass X-Mirapoint-IP-Reputation: reputation=neutral-1, source=Fixed, refid=n/a, actions=MAILHURDLE SPF TAG X-Junkmail-Status: score=10/50, host=dagger.cc.vt.edu X-Junkmail-Signature-Raw: score=unknown, refid=str=0001.0A02020A.4DD1589C.009F,ss=1,fgs=0, ip=0.0.0.0, so=2010-07-22 22:03:31, dmn=2009-09-10 00:05:08, mode=single engine X-Junkmail-IWF: false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1312 Lines: 40 --==_Exmh_1305565337_2487P Content-Type: text/plain; charset=us-ascii On Sat, 14 May 2011 12:28:04 +0200, Tejun Heo said: > This reverts commit 270dac35c26433d06a89150c51e75ca0181ca7e4. > > The commits causes command timeouts on AC plug/unplug. It isn't yet > clear why. As the commit was for a single rather obscure controller, > revert the change for now. > > The problem was reported and bisected by Gu Rui in bug#34692. > > https://bugzilla.kernel.org/show_bug.cgi?id=34692 > > Also, reported by Rafael and Michael in the following thread. > > http://thread.gmane.org/gmane.linux.kernel/1138771 This also fixes the issue I had with a 10-second pause on my Dell Latitude E6500 laptop at boot while detecting the CD/DVD drive. --==_Exmh_1305565337_2487P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFN0ViZcC3lWbTT17ARAlsZAJ91zKbQW9Gq0dUJEYzqYDccsyH3YgCfX/Om eOxZRGIEc0/BfbLY5Uhc4wY= =ZQ/P -----END PGP SIGNATURE----- --==_Exmh_1305565337_2487P-- -- 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/