On 2014/9/25 5:56, Rob Roschewsk wrote: > Hello All .... wonder if there has been any movement on this issue .... I'm > having a similar issue > > I'm running an HP dl380 gen 8 with an Emulex OneConnect 10Gb iSCSI > (14e4:164c) (rev 11) > also known as " Hewlett-Packard Company NC373i Integrated Multifunction > Gigabit Server Adapter" > > 03:00.2 Mass storage controller: Emulex Corporation OneConnect 10Gb iSCSI > Initiator (be3) (rev 01) > > 03:00.3 Mass storage controller: Emulex Corporation OneConnect 10Gb iSCSI > Initiator (be3) (rev 01) > > Seems as soon as the iscsi target is contacted the following messages appear > in the log every few seconds .... >
It seems to a different problem, in my issue, the DMA fault messages contained a non-exist PCI ID in system. But in this issue, 03:00.2 is in system, the fault addr is ffffc000, I guess it's DMA virtual address allocated by vt-d driver. And it seems to 03:00.2 has no write access authority. > Sep 24 15:25:30 kernel: [ 78.682675] dmar: DRHD: handling fault status reg 2 > Sep 24 15:25:30 kernel: [ 78.699797] dmar: DMAR:[DMA Write] Request device > [03:00.2] fault addr ffffc000 > Sep 24 15:25:30 kernel: [ 78.699797] DMAR:[fault reason 05] PTE Write access > is not set > Sep 24 15:25:30 kernel: [ 78.934546] dmar: DRHD: handling fault status reg > 102 > Sep 24 15:25:30 kernel: [ 78.934549] dmar: DMAR:[DMA Write] Request device > [03:00.2] fault addr ffffc000 > Sep 24 15:25:30 kernel: [ 78.934549] DMAR:[fault reason 05] PTE Write access > is not set > Sep 24 15:25:30 kernel: [ 78.935359] dmar: DRHD: handling fault status reg > 202 > > If I pull intel_iommu=on out of the kernel command line the problem goes away. > > System is running Ubuntu 14.04.1 LTS > > 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 > x86_64 GNU/Linux > > Looking for help .... I'm not sure where I should be looking next ..... I > need SR-IOV for other adapters in the box. > > I have a system up that I can pull any data from that might be required. > > Thanks, > > --> Rob > > > > > > _______________________________________________ > iommu mailing list > iommu@lists.linux-foundation.org > https://lists.linuxfoundation.org/mailman/listinfo/iommu > -- Thanks! Yijing _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
