From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Hounschell Subject: Re: Can't boot new 4.4 kernel with IOMMU enabled Date: Thu, 21 Jan 2016 09:58:41 -0500 Message-ID: <56A0F221.10502@compro.net> References: <56957209.1080202@compro.net> <20160113030950.GB11902@dhcp-128-28.nay.redhat.com> <56966244.80700@compro.net> <20160114000520.GA2449@x1.redhat.com> <5697AAD8.1000105@compro.net> <20160120153823.GG18805@8bytes.org> <20160120154658.GH18805@8bytes.org> <569FB013.4050709@compro.net> <20160120161904.GI18805@8bytes.org> <569FCFC8.2000606@compro.net> <20160120182602.GJ18805@8bytes.org> <56A0F03C.8010109@compro.net> Reply-To: markh-n2QNKt385d+sTnJN9+BGXg@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <56A0F03C.8010109-n2QNKt385d+sTnJN9+BGXg@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Joerg Roedel Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: iommu@lists.linux-foundation.org On 01/21/2016 09:50 AM, Mark Hounschell wrote: > On 01/20/2016 01:26 PM, Joerg Roedel wrote: >> On Wed, Jan 20, 2016 at 01:19:52PM -0500, Mark Hounschell wrote: >>> >>> Would you like me to do anything more right now? >> >> Would be great if you find the time to bisect the issue. >> >> To speed thing up you can test commit b67ad2f and use it as the bad one >> if it shows the same problem. >> >> As good commit you can use the v4.3 tag, this will only bisect in the >> iommu related changes which went into v4.4-rc1. >> >> If commit b67ad2f works for you, then please bisect between v4.3 and >> v4.4. >> >> >> Joerg >> >> > > Here ya go. > > 150952f96941cb13371770ce0cf47906647d8bba is the first bad commit > commit 150952f96941cb13371770ce0cf47906647d8bba > Author: Joerg Roedel > Date: Tue Oct 20 17:33:35 2015 +0200 > > iommu/amd: Do not iterate over alias-list in __[attach|detach]_device > > The alias list is handled aleady by iommu core code. No need > anymore to handle it in this part of the AMD IOMMU code > > Signed-off-by: Joerg Roedel > > :040000 040000 334ffdc0d7ff9389478d3ce6096eb81227d8eafc > cb6fce5d7e94ce3e44a6a64092ba8eb32dd0978b M drivers > FYI, this commit also had tons of IO_PAGE_FAULTS booting but eventually all the disks but the 2 in question actually ended up being mounted. Mark