Doing some more testing it looks like the systems without the firmware udpate are not stable. I can sometimes, but not always, get them to boot using either 4.4.0-59-generic #80 or 4.4.0-62-generic #83, but once they're up, they don't last long. The longest I've seen is about 40 minutes before getting "sd 0:0:2:0: rejecting I/O to offline device" errors and /dev/sda going offline. I can get it to go offline quicker - almost immediately - by doing "cat /dev/urandom > /dev/sdb".
The two systems with the firmware updates both reliably boot up and stay up using either 4.4.0-59-generic #80 or 4.4.0-62-generic #83, and haven't gone offline yet from the "cat /dev/urandom > /dev/sdb" test. I will leave them running over night. On Mon, Jan 30, 2017 at 6:51 PM, Jason Hobbs <jason.ho...@canonical.com> wrote: > So, I appear to have spoken too soon on exactly what fixes this. > > We have two systems being tested with 4.4.0-62-generic #83 - one with the > firmware update and one without. > > The one with the firmware updates has been up for over 6 hours now without > any issues. > > The one without firmware updates has been up for 40 minutes and is getting > I/O errors now. > > I'm also seeing a system with 4.4.0-59-generic #80 and no firmware updates > boot up with iommu enabled, I will see how long it stays up.. > > I'll also test with 4.4.0-59-generic #80 and the firmware updates. > > On Mon, Jan 30, 2017 at 6:13 PM, Jason Hobbs <jason.ho...@canonical.com> > wrote: > >> We found testing with the latest Xenial kernel (4.4.0.62.65) from >> https://launchpad.net/~canonical-kernel- >> team/+archive/ubuntu/ppa/+build/11278866 fixes this issue - no firmware >> updates required. We did also test with just the latest firmware >> updates, and that did not fix the issue. Latest firmware + 4.4.0.62.65 >> also works. >> >> -- >> You received this bug notification because you are subscribed to the bug >> report. >> https://bugs.launchpad.net/bugs/1641593 >> >> Title: >> unable to enable iommu on HPE Proliant Gen9 server >> >> Status in linux package in Ubuntu: >> Incomplete >> >> Bug description: >> I'm using MAAS to enable the following kernel flags on install/boot: >> >> iommu=pt intel_iommu=on >> >> in order to be able to passthrough SR-IOV VF functions to KVM guess; >> however when these options are enabled, the servers fail to install >> (see attached screenshot). >> >> The install eventually fails - it looks like the writes back to one of >> the disks starts to fail for some reason. >> >> Servers are targeted with Xenial and the release 4.4 kernel (no HWE). >> >> Here's the LSHW output from the system: >> http://pastebin.ubuntu.com/23875929/ >> >> To manage notifications about this bug go to: >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1641593 >> /+subscriptions >> > > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1641593 Title: unable to enable iommu on HPE Proliant Gen9 server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1641593/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
