Messages in this thread | | | Date | Tue, 26 Jul 2016 15:49:02 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: PROBLEM: Intel I210AT NIC resets while using PCI passthrough on ESXi (regression) |
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On Mon, 25 Jul 2016, Foster Snowhill wrote: > On 25.07.16 13:56, Thomas Gleixner wrote: > > On Sat, 23 Jul 2016, Foster Snowhill wrote: > >> [1.] One line summary of the problem: > >> > >> Intel I210AT NIC resets while using PCI passthrough on ESXi (regression) > > > > That has been reported before and so far this has been believed to be a vmware > > issue. Native hardware and KVM do not expose that. See: > > > > http://marc.info/?l=linux-kernel&m=145280623530135&w=2 > > http://marc.info/?l=linux-kernel&m=145879968005421&w=2 > > This is indeed the same symptoms I encountered in my case. More than that, I have an LSI 2008 adapter which is also being passed through in the same manner as the NIC, absolutely the same problem there too. Before doing the bisect I considered it a separate issue and planned to work on it later. > > > Could you please give the patch below a try? It might be related, but I'm not > > sure whether it will cure that particular vmware oddity. > > Patch fixed the issue for me. Did 4-5 reboots just to be sure, all working properly, no adapter resets. Just for the sake of experiment built a clean 4.7 kernel without the patch, issue still present there as expected. >
Can you please test something else with that patch?
After starting the NIC, can you please shutdown the interface, so the interrupt gets shutdown as well. (It should vanish from /proc/interrupts).
Does that work correctly?
Thanks,
tglx
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