On 9/23/16 14:29 , Adam Richmond-Gordon wrote: > Hi Robert, > > Many thanks! That’s exactly what I’ve done, and the box is still having > problems, so I am going to raise an RMA.
I would suggest checking FMA for any ereports or faults. What exactly is it and how is it misbehaving? > I also disable features like X2APIC, SR-IOV - does that sound about right? Well, we leverage the X2APIC; however, when there's an explicit BIOS option, it seems to be triggering a bug depending on how the BIOS does things, so I think it's often left at it's default disabled option. We're not actively leveraging SR-IOV, but I don't recall if we've explicitly disabled it as an option. Robert >> On 23 Sep 2016, at 22:23, Robert Mustacchi <[email protected]> wrote: >> >> On 9/23/16 14:20 , Adam Richmond-Gordon wrote: >>> Hello all, >>> >>> I (seem to) remember some time ago that the general advice was to disable >>> power management where possible. Is this still correct, or have I been >>> imagining this all along? >>> >>> I recently took delivery of a box with an E5 v4 CPU, and SmartOS would >>> panic on boot due to expecting the `mwait` CPU feature. I have managed to >>> get the box to boot by allowing C0-C2 states, but it is somewhat unstable. >>> Although I do think this is quite likely to be a hardware issue, which CPU >>> power management features can SmartOS actually take advantage of, and what >>> is recommended? >>> >>> I plan to open an RMA for the box next week, but it’s probably worth making >>> sure that my running configuration is actually valid, first. >>> >>> If memory serves me correctly, the CPU and board firmware can support a >>> variety of C-, T- and P-states, amongst other features that either aren’t >>> selectable or don’t exist on other hardware I have. >> >> In general, our recommendation is to disable the deep C-States. So we >> leave T- and P- states enabled, but not C3 and C6, etc. >> >> That help? >> Robert >> > > ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
