From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: sata_nv does not function in kernel > 2.6.20.21 Date: Wed, 09 Jan 2008 23:40:47 -0500 Message-ID: <4785A1CF.7050006@garzik.org> References: <20080110024733.GC9461@mhcomputing.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:48794 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754512AbYAJEkt (ORCPT ); Wed, 9 Jan 2008 23:40:49 -0500 In-Reply-To: <20080110024733.GC9461@mhcomputing.net> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Matthew Hall Cc: linux-scsi@vger.kernel.org, IDE/ATA development list , Linux Kernel Mailing List Matthew Hall wrote: > ACPI: PCI Interrupt Link [LT3D] enabled at IRQ 46 > ACPI: PCI Interrupt 0000:80:07.0[A] -> Link [LT3D] -> GSI 46 (level, > low) -> IRQ 46 > sata_nv 0000:80:07.0: Using ADMA mode > PCI: Unable to reserve mem region #6:1000@dfefe000 for device > 0000:80:07.0 > ACPI: PCI interrupt for device 0000:80:07.0 disabled > sata_nv: probe of 0000:80:07.0 failed with error -16 > ACPI: PCI Interrupt Link [LT2E] enabled at IRQ 45 > ACPI: PCI Interrupt 0000:80:08.0[A] -> Link [LT2E] -> GSI 45 (level, > low) -> IRQ 45 > sata_nv 0000:80:08.0: Using ADMA mode > PCI: Unable to reserve mem region #6:1000@dfefd000 for device > 0000:80:08.0 > ACPI: PCI interrupt for device 0000:80:08.0 disabled > sata_nv: probe of 0000:80:08.0 failed with error -16 Error -16 is EBUSY, which causes the driver load to fail due to the "Unable to reserve mem region" message. This means that the sata_nv driver needed to use PCI BAR 6, but was unable to for some reason. Given that sata_nv uses devres like other libata drivers, IMO the likely cause is outside the ATA subsystem (PCI? ACPI?). One workaround to try is setting sata_nv module option 'adma' to zero (0), in the hopes that it ignores that final region and work anyway. Jeff