On Thu, 4 Oct 2018 13:57:24 -0700 Jerry Snitselaar <[email protected]> wrote:
> > > >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. > >> Hi Jerry, Could you confirm that you see this failure in v4.19-rc6 kernel only without "strict" mode? I don't see a connection between deferred flushing and IR here, AFAIK deferred flush only affects DMA remapping. Also, does the SID failure occur on other devices under the same IOMMU? Thanks, Jacob _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
