[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

This bug was fixed in the package qemu - 2.0.0+dfsg-2ubuntu1.28 --- qemu (2.0.0+dfsg-2ubuntu1.28) trusty; urgency=medium [ Ryan Harper ] * Apply upstream fix for memory slot alignement (LP: #1606940) - debian/patches/kvm-fix-memory-slot-page-alignment-logic.patch -- Chris J

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

This bug can be marked as resolved. From: "Panicker, Manojkumar" To: Bug 1606940 <1606...@bugs.launchpad.net> Cc: Date: Mon, 17 Oct 2016 04:50:08 + Subject: RE: [Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

The remaining issues in the logs are: - qemu forward migration P->T and machine type uniqueness, both fixed by the upload blocked by this bug atm - libvirt test on trusty (independent to the fix in proposed in pre & post tests) All others worked fine - so I think we can call that verified. **

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

Thanks Martin. Given that I tested this on Trusty with various tests I had from former bugs. That should ensure a good base level of extra QA - especially including the recently added upgrade tests. s390x/ppc64el wasn't available/supported back then (only since xenial/vivid) and I unfortunately

Re: [Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

Hi Christian, just for future references, it's of course ideal if we can verify that the reported bug is fixed, but after 14-21 days it becomes ok to simply run the qa-regression-tests and verify that there are no new failures. Whether or not to drop the set if we can't verify the original bug

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

The test against the PPA version is fine (assuming it was the same patch). The more important aspect here is that someone actually tests that proposed QEMU on other platforms, to make sure that the package still by and large works, to guard against miscompilation, changed toolchains, etc. -- You

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

I was having some IRC conversations and email exchanges - thanks Ryan Harper and Larry Michel. Following up on that I want to summarize: - the back-ported fix is in qemu since 2.2 and not reverted/follow-on-fixed (only got extra feature to support non 4k host pages later on) - the fix was tested

Re: [Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

The original bug was with a customer SRIOV device which did have writable registers. W.r.t the Intel, that model explicitly passed with no issues. AFAIK, one has to have this specific card, or one like it with writable registers. On Mon, Oct 17, 2016 at 7:31 AM, ChristianEhrhardt <

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

Intel http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/ethernet-x540-datasheet.pdf (for my case) defines in section 9.5 the configuration space for the VF. Most entries are RO for the VF, and I found no writable register bit behaving in a similar manner than the referred

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

Hi, I wanted to verify this to get it out of the way. But IMHO the reproduction statements lack some info on the device type you forwarded. With what I could set up I can't reproduce as I miss this useful register that "acts like an adder in that every write adds to the previously written value

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

This needs verification, please. It is blocking bug 1536331. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1606940 Title: A a single PCI read or write appears twice on the PCIe bus. This happens

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

** Changed in: qemu (Ubuntu) Importance: Undecided => Medium ** Changed in: qemu (Ubuntu Trusty) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1606940 Title:

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

Hello Ryan, or anyone else affected, Accepted qemu into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/qemu/2.0.0+dfsg- 2ubuntu1.28 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

** Also affects: qemu (Ubuntu Trusty) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1606940 Title: A a single PCI read or write appears twice on the PCIe

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

** Attachment added: "pcimem.tar" https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1606940/+attachment/4708136/+files/pcimem.tar -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1606940 Title:

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

** Attachment added: "bug-1606940-trusty-guest.xml" https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1606940/+attachment/4708135/+files/bug-1606940-trusty-guest.xml -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

** Patch added: "qemu-bug-1606940.debdiff" https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1606940/+attachment/4708134/+files/qemu-bug-1606940.debdiff ** Description changed: [Impact] - * Users of SRIOV devices in qemu on Trusty may encounter unstable -behavior on pass-through

[Bug 1606940] Re: A a single PCI read or write appears twice on the PCIe bus. This happens when using the SR-IOV feature with some PCI devices

Already fixed upstream. ** Changed in: qemu (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1606940 Title: A a single PCI read or write appears twice on