[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

This bug was fixed in the package linux - 4.2.0-35.40 --- linux (4.2.0-35.40) wily; urgency=low [ Brad Figg ] * Release Tracking Bug - LP: #1557706 [ Upstream Kernel Changes ] * Revert "workqueue: make sure delayed work run in local cpu" - LP: #1556269 * Revert

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

This bug was fixed in the package linux - 4.2.0-35.40 --- linux (4.2.0-35.40) wily; urgency=low [ Brad Figg ] * Release Tracking Bug - LP: #1557706 [ Upstream Kernel Changes ] * Revert "workqueue: make sure delayed work run in local cpu" - LP: #1556269 * Revert

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

We've tested the proposed kernel 4.2.0.35.38 and the issue is no longer present, basic functionality has also been tested. Thank you! ** Tags removed: verification-needed-wily ** Tags added: verification-done-wily -- You received this bug notification because you are a member of Ubuntu Bugs,

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- wily' to 'verification-done-wily'. If verification is not done by 5 working days from

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

** Branch linked: lp:ubuntu/trusty-proposed/linux-lts-wily -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss To

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

** Changed in: linux (Ubuntu Wily) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I submitted an SRU request for this fix to be included in Wily. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss To

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Thanks for testing, Adrian. I'll submit an SRU request to have commit ed9ba608e included in Wily. ** Changed in: linux (Ubuntu Xenial) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Hi! I tested Wily with the test kernel from http://kernel.ubuntu.com/~jsalisbury/lp1496927/ and it fixes the bug. I also tested Xenial with 4.4.0-11-generic kernel and the issue is fixed there too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Commit ed9ba608e is in Xenial as of the Ubuntu-4.4.0-9.24 kernel. So if commit ed9ba608e is the real fix, this bug should already be fixed in Xenial. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I believe the following commit will fix this bug: commit ed9ba608e4851144af8c7061cbb19f751c73e998 Author: Olaf Hering Date: Mon Dec 14 16:01:42 2015 -0800 Drivers: hv: vss: run only on supported host versions I built a Wily test kernel with this commit, which can be

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Thanks for the update, Chris. I'll perform a reverse bisect to find the commit that fixes this issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Hi Joe, I have a 15.04 install running linux-next 4.5.0-rc5 from Febr 26th, on which I can confirm Sidney's update, that udev/systemd is no longer slowing this down to a halt. As the default 3.19 kernel on 15.04 is not having this behavior, I've installed kernel 4.2.8 from the ubuntu ppa

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Thanks good news, Sidney. @Chris, can you confirm this issue is resolved on 4.5.0-040500rc5? If it is, I can perform a reverse bisect to identify the fix, unless an obvious fix sticks out in the git logs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Not sure if helpful but I just tried this on 4.5.0-040500rc5 and the problem is gone. system-udevd is running at less than 1% of CPU -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title:

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Joe, be aware that the vss daemon for Hyper-V only supports host versions 5.0 and greater. As a result, it won't actually *do* anything on Windows Server 2012. I'm not sure what the underlying issue is, but is it spinning in an attempt to start the daemon? This really slows down our VMs and we do

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I've tried to boot an Ubuntu 16.04 daily build from 09-Feb on a Windows Server 2012 but it takes around 6-7 minutes. If I try to reboot it after boot the VM hangs. Also system-udevd consumes a lot of CPU. -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

We're seeing this also on the proposed 4.3 rebased kernel (from bug ID 1519917) on top of 15.10. So this appeared the first time in 4.2 and then into 4.3. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Any progress on this Joseph? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss To manage notifications about this bug

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I've also spotted the fact that when launching /rebooting а vm with the kernel 4.2.x it takes too long (about 2 minutes) to put up an eth0. There is no such an issue with the kernel 3.19.x in Ubuntu 15.04/15.10 -- You received this bug notification because you are a member of Ubuntu Bugs, which

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Hi guys, there is the same bug in Ubuntu 15.04 with default kernel 4.2.0.19 as well when using it as vm upon MS Windows Server 2012 (with no R2) with Hyper -V role. I've downgraded the kernel to the one of version 3.19.0-39 and a high cpu load has disappeared at all. Currently a don't see a

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Finnaly after some efforts i've manged to make working linux-tools and linux-cloud-tools in Ubuntu 15.10 with the kernel 3.19.0-39-generic. As the above tools for the kernel 3.19.0-39 are available in Vivid distro only (i fogot to mention I had upgraded 15.04 into 15.10) so I had to download

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Joe, do you have any updates on this? Thank you! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss To manage

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I moved my test system back over to Windows Server 2012 R2 to do some testing for bug 1470250. I'll switch back to without the R2 updates and continue the bisect on this bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Yes, this is defiantly a regression. I booted the wily guest with the mainline kernel(v4.2-rc2) and the bug still exists. I then booted with the Vivid kernels(3.19 based) and the bug went away. I'll bisect this down and should have an update shortly. ** Also affects: linux (Ubuntu Xenial)

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I'm not able to reproduce the bug. I should be able to perform a bisect now and identify the commit that caused this. ** Changed in: linux (Ubuntu) Status: Confirmed => In Progress ** Changed in: linux (Ubuntu Wily) Status: Confirmed => In Progress -- You received this bug

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Hi Joe, On 2012 and prior you have only Gen1. Please use Windows Server 2012 (*without* R2) with a Wily VM for the direct repro. Given Jirayut replies, it seems that this goes down to the Wily kernel, so with Wily on WS2012 you'll have the direct repro. -- You received this bug notification

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I confirm that this can not be reproduce on Windows Server with R2. I'm creating a second Hyper-V environment without R2. Does it matter if this is a Gen1 or Gen2 guest? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Are there specific steps to reproduce this issue, or does it just require running HypverV with a Wily kernel? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Yes. Just install Wily kernel on HyperV with Windows Server 2008 R2 or Windows Server 2012 (No R2) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Joe, do you have any update on this issue, or raise the priority of it? Thank you! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

** Changed in: linux (Ubuntu Wily) Importance: Medium => High ** Changed in: linux (Ubuntu) Importance: Medium => High ** Tags added: kernel-hyper-v -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

I forgot to tell that my system using HyperV on Windows Server 2008 R2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Confirm that this bug happen to me too. I'm using Ubuntu 14.04.3 LTS and install new Kernel with command sudo apt-get install -y linux-generic-lts-wily linux-tools-virtual-lts- wily linux-cloud-tools-virtual-lts-wily hv-kvp-daemon-init Then reboot to get new Kernel 4.2.0-18-generic then

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

** Changed in: linux (Ubuntu Wily) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Joe, adding to what my colleague Ovidiu said, the behavior remains and can be seen in the Oct 12nd build - kernel 4.2.0-16 when running on WS 2012 (without R2). The systemd-udevd still takes an unusual high number of CPU power, with the system being idle. In some other circumstances, the boot

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Details: Hyper-V: Server 2012 (no R2) Kernel: 4.2.0-12-generic Daily build version: 01-Oct-2015 Same problem occurs to me on the latest iso. I've tried to disable apparmor but nothing changed. The second ideea was to disable hv-vss- daemon and it seems that there is a little improvement, meaning

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1496927 Title: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

Is this issue only happening in Wily, or does it also happen in earlier releases? ** Tags added: kernel-da-key wily ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Also affects: linux (Ubuntu Wily) Importance: Medium Status: Confirmed -- You received this bug

[Bug 1496927] Re: [Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss

We're seeing this only on Wily and on 2012. This is not showing up with other Ubuntu releases and also neither on the other supported Windows Server releases. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.