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Message #147172
[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!
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https://bugs.launchpad.net/bugs/1496927
Title:
[Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Wily:
Confirmed
Bug description:
While testing Ubuntu 15.10 Wily Werewolf (development branch) 64 bit
we found the below issue.
Repro rate: 100%
Repro details:
Hyper-V: Server 2012 (no R2) - WS 2012 is the only affected platform
Daily build version: 2015.09.10
Kernel: kernel 4.2.0-7-generic
During the below event, we also noticed that system-udevd is
constantly around 100% CPU on the VM, taking a lot of cycles.
On Server 2012 we don't have the Live backup with VSS feature, so
these messages should not occur in the first place.
After 20 minutes we have over 3000 messages in the logs, all like below:
Sep 14 17:43:33 ubuntu systemd-udevd[14292]: setting owner of /dev/vmbus/hv_vss to uid=0, gid=0 failed: No such file or directory
Sep 14 17:44:00 ubuntu systemd-udevd[14292]: setting mode of /dev/vmbus/hv_vss to 020600 failed: No such file or directory
Sep 14 17:44:00 ubuntu systemd-udevd[14292]: setting owner of /dev/vmbus/hv_vss to uid=0, gid=0 failed: No such file or directory
Sep 14 17:44:01 ubuntu systemd-udevd[14292]: setting mode of /dev/vmbus/hv_vss to 020600 failed: No such file or directory
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References