From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: source-id verification failures Date: Thu, 4 Oct 2018 11:07:53 +0200 Message-ID: <20181004090753.GC3630@8bytes.org> References: <20181002172529.fjapu46h5y57m3f7@cantor> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20181002172529.fjapu46h5y57m3f7@cantor> 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: Jerry Snitselaar Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: iommu@lists.linux-foundation.org Hi Jerry, thanks for the report. On Tue, Oct 02, 2018 at 10:25:29AM -0700, Jerry Snitselaar wrote: > I've been trying to track down a problem where an hp dl380 gen8 with a Cavium QLogic BR-1860 Fabric Adapter > is getting source-id verification failures when running dhclient against that interface. This started showing > up when I backported the iova deferred flushing patches. So far this has only been seen on this one system, > but I'm trying to understand why it appears with the new deferred flushing code. I also see it with both 4.18.10, > and 4.19.0-rc6 kernels. > > [35645.282021] bna 0000:24:00.1 ens5f1: link down > [35645.298396] bna 0000:24:00.0 ens5f0: link down > [35650.313210] DMAR: DRHD: handling fault status reg 2 > [35650.332477] DMAR: [INTR-REMAP] Request device [24:00.0] fault index 14 [fault reason 38] Blocked an interrupt request due to source-id verification failure > [35655.137667] bna 0000:24:00.0 ens5f0: link up > [35657.532454] bna 0000:24:00.1 ens5f1: link up > [35664.281563] bna 0000:24:00.1 ens5f1: link down > [35664.298103] bna 0000:24:00.0 ens5f0: link down > [35669.313568] DMAR: DRHD: handling fault status reg 102 > [35669.333198] DMAR: [INTR-REMAP] Request device [24:00.0] fault index 14 [fault reason 38] Blocked an interrupt request due to source-id verification failure > [35674.081212] bna 0000:24:00.0 ens5f0: link up > [35674.981280] bna 0000:24:00.1 ens5f1: link up > > > Any ideas? No, not yet. Can you please post the output of lscpi -vvv? Jacob, can you or someone from your team please also have a look into this problem report? Thanks, Joerg