Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751815AbbGOFhB (ORCPT ); Wed, 15 Jul 2015 01:37:01 -0400 Received: from mail-ig0-f171.google.com ([209.85.213.171]:38031 "EHLO mail-ig0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750772AbbGOFg7 (ORCPT ); Wed, 15 Jul 2015 01:36:59 -0400 MIME-Version: 1.0 In-Reply-To: <1436935796-28995-1-git-send-email-Sreekanth.Reddy@avagotech.com> References: <1436935796-28995-1-git-send-email-Sreekanth.Reddy@avagotech.com> Date: Tue, 14 Jul 2015 22:36:58 -0700 X-Google-Sender-Auth: NeexpMQiI0OyeejT9FeS3AUS-Qk Message-ID: Subject: Re: [PATCH v3] [SCSI] mpt2sas, mpt3sas: Abort initialization if no memory I/O resources detected From: Yinghai Lu To: Sreekanth Reddy Cc: tpearson@raptorengineeringinc.com, James Bottomley , martin.petersen@oracle.com, Linux-Scsi , "James E.J. Bottomley" , Sathya.Prakash@avagotech.com, Linux Kernel Mailing List , Christoph Hellwig , Bjorn Helgaas , "linux-pci@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 765 Lines: 20 On Tue, Jul 14, 2015 at 9:49 PM, Sreekanth Reddy wrote: > Driver crashes if the BIOS do not set up at least one > memory I/O resource. This failure can happen if the device is too > slow to respond during POST and is missed by the BIOS, but Linux > then detects the device later in the boot process. But pci subsystem should assign resources to those unassigned BAR. Do you mean even kernel can not assign resource to them? or it takes so long for mpt FW to get ready? Thanks Yinghai -- 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/