From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Chris Lee" Subject: RE: Problem with legacy megaraid Date: Sun, 1 Oct 2006 00:39:37 -0500 Message-ID: <451f5496.40cc4d00.1456.ffffef37@mx.gmail.com> References: <20060930155410.8238c195.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from wx-out-0506.google.com ([66.249.82.225]:22410 "EHLO wx-out-0506.google.com") by vger.kernel.org with ESMTP id S1752024AbWJAFjf (ORCPT ); Sun, 1 Oct 2006 01:39:35 -0400 Received: by wx-out-0506.google.com with SMTP id s14so1372538wxc for ; Sat, 30 Sep 2006 22:39:34 -0700 (PDT) In-Reply-To: <20060930155410.8238c195.akpm@osdl.org> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: 'Andrew Morton' Cc: linux-kernel@vger.kernel.org, "'Ju, Seokmann'" , linux-scsi@vger.kernel.org, Neela.Kolli@engenio.com Thanks for your response Andrew. Comment responses in-line: > > > I am not subscribed to this list. Please CC me on replies. > > (more cc's added) > Outstanding; thank you. > > I have a machine I'm trying to use as a file server. I > have a RAID10 and a > > RAID5 on a single Dell PERC2/DC (AMI Megaraid 467) > controller. Both arrays > > are also on the same SCSI channel. The system runs fine > for days on end > > until I put some heavy I/O load on either array and sustain > it for a few > > seconds. > > We recently discovered that "The old megaraid driver is > apparently borken > for firmware newer than 6.61.". So please check that and see if a > downgrade is needed. > The Dell firmware version on the card currently is 1.06. I have not found a newer firmware version than that one. > Is there some reason why you cannot use the new megaraid driver? > The config help for the megaraid drivers suggested that the new megaraid driver would not support a PERC2. I had enabled both drivers in the kernel which is having this problem.: CONFIG_MEGARAID_NEWGEN=y CONFIG_MEGARAID_MM=y CONFIG_MEGARAID_MAILBOX=y CONFIG_MEGARAID_LEGACY=y After your suggestion I rebuilt the kernel with legacy disabled.: CONFIG_MEGARAID_NEWGEN=y CONFIG_MEGARAID_MM=y CONFIG_MEGARAID_MAILBOX=y # CONFIG_MEGARAID_LEGACY is not set The new megaraid driver does not detect the PERC2/DC just as I feared it would not. Unless I'm missing some kernel commandline arguments necessary to make the new driver find the card, I'm stuck with legacy. > > > Distro: Gentoo Linux > > Kernel: 2.6.17-gentoo-r7 > > > > Hardware: > > Motherboard: Tyan Thunder i7501 Pro (S2721-533) > > CPUs: Dual 2.8Ghz P4 HT Xeons > > RAM: 4GB registered (3/1 split, flat model) > > RAID: Dell PERC2/DC (AMI Megaraid 467) > > SCSI: Adaptec AHA-2940U2/U2W PCI > > NICs: onboard e100 and dual onboard e1000 > > Thanks, Chris