OK ... at first glance the system seems to be operating "normally" except for the errors every 4 seconds ... that is it's attached to and using the iscsi target ...
Is this a problem in iommu OR the emulex driver?? On Thu, Sep 25, 2014 at 2:36 AM, Yijing Wang <wangyij...@huawei.com> wrote: > 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 > >
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