From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: sata_sil24 / Alpha / 4726 PMP issue .. Date: Mon, 28 Jan 2008 09:44:28 +0900 Message-ID: <479D256C.1090507@gmail.com> References: <4794459C.3090200@gmail.com> <4796DC44.6010100@gmail.com> <864c1e490801231622n806b465g88a3f0448b5d8f29@mail.gmail.com> <4797ECF3.5000306@gmail.com> <864c1e490801231823v3e9cf61ds2a0d553ed5b61fb2@mail.gmail.com> <4797F8D0.6060302@gmail.com> <864c1e490801231939k6008bc95tf40565a8ef6f430d@mail.gmail.com> <47980B71.3000408@gmail.com> <864c1e490801240707x31ff53b1s3d72032968e1bcbc@mail.gmail.com> <4798AA88.5080107@gmail.com> <864c1e490801240840q5423a1beuf9b4b3a43416db2b@mail.gmail.com> <4798C617.10601@gmail.com> <4798CA71.20707@gmail.com> <4798CC90.4040707@gmail.com> <4798CCDF.9070305@gmail.com> <4798CE10.2050005@gmail.com> <4798D4A2.7030303@gmail.com> <47991AD9.6050804@gmail.com> <47993686.5040405@gmail.com> <479939E3.4020307@gmail.com> <479D0AB5.6070203@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from wa-out-1112.google.com ([209.85.146.180]:29026 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753405AbYA1Aoe (ORCPT ); Sun, 27 Jan 2008 19:44:34 -0500 Received: by wa-out-1112.google.com with SMTP id v27so2647116wah.23 for ; Sun, 27 Jan 2008 16:44:34 -0800 (PST) In-Reply-To: <479D0AB5.6070203@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Thomas Evans Cc: IDE/ATA development list Thomas Evans wrote: > Tejun and all - >=20 > I have a new log - I got somewhat further by setting this bit when > init'd via HOST_CTRL: >=20 > Bit [28]: PERR Rpt Dsbl (R/W) =96 PERR Report Disable. This bit, when= set > to one, disables reporting of PCI bus > parity errors to the Command Execution State Machine (such errors wou= ld > otherwise cause the state machine to stop > and report an error in the Command Error register). Hmmm... That's strange. If PERR makes a difference, it means PCI bus side is contributing to the problem but only when PMP is attached while directly attached drive works just fine? > This causes the PMP device to be noticed, but the first qc command ne= ver > completes. >=20 > Please see the log and see if there is anything obvious. Thanks but I'm as lost as you are. :-( --=20 tejun