From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756275AbcAHS5B (ORCPT ); Fri, 8 Jan 2016 13:57:01 -0500 Received: from bedivere.hansenpartnership.com ([66.63.167.143]:44212 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754507AbcAHS47 (ORCPT ); Fri, 8 Jan 2016 13:56:59 -0500 Message-ID: <1452279417.2297.5.camel@HansenPartnership.com> Subject: Re: System "hangs" on kernels > v4.4-rc1 - mpt2sas problem? From: James Bottomley To: "Luck, Tony" , "Martin K. Petersen" Cc: "linux-kernel@vger.kernel.org" , "linux-scsi@vger.kernel.org" Date: Fri, 08 Jan 2016 10:56:57 -0800 In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F39FA7873@ORSMSX114.amr.corp.intel.com> References: <3908561D78D1C84285E8C5FCA982C28F39FA658E@ORSMSX114.amr.corp.intel.com> <3908561D78D1C84285E8C5FCA982C28F39FA727F@ORSMSX114.amr.corp.intel.com> <3908561D78D1C84285E8C5FCA982C28F39FA73FD@ORSMSX114.amr.corp.intel.com> <3908561D78D1C84285E8C5FCA982C28F39FA77D9@ORSMSX114.amr.corp.intel.com> <1452277927.2297.2.camel@HansenPartnership.com> <3908561D78D1C84285E8C5FCA982C28F39FA7873@ORSMSX114.amr.corp.intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.5 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2016-01-08 at 18:42 +0000, Luck, Tony wrote: > > We're not quite out of the woods yet: dracut should have seen this > > automatically because of the module alias bindings. Is your system > > somehow unusual and you don't expect the initrd automatic module > > selection to work? If not, could you help us debug why it didn't? > > I saw the same problem building a 4.4-rc* kernel on a RHEL7.2 > and SLES12-SP1 system. > > My build process is in both cases is: > $ tar xf linux-... > $ cd linux... > $ cp /boot/config-xyzzy . > $ yes "" | make oldconfig > $ make -j 100 > $ su > # make -j 100 modules_install && make install > > What sort of features of a system might be considered "unusual"? > This looks a very simple system ... just one disk controller with two > drive bays occupied. > > Let me know if you'd like run any topology reporting commands. No, the problem will lie in the initrd building part. I know that with debian mkinitramfs takes the -v option which will tell you what modules it's selecting and why, but I'm not very familiar with enterprise distributions; chances are whatever command you use to build the initrd does take a -v. James