This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1826416
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: xenial
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1826416
Title:
[Xenial] Customer can not SSH to Linux VM due to "VSC State Unhealthy"
Status in linux package in Ubuntu:
Incomplete
Bug description:
A mutual customer is reporting ssh is not working on a Xenial based
VM. This VM is running the 4.4 based Xenial kernel and not a custom
linux-azure kernel.
After an investigation this is a known old signaling issue. The 4.4
based Xenial kernels require the following patch:
vmbus: fix missing signaling in hv_signal_on_read()
(https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=13c5e97701091f9b02ded0c68809f8a6b08c747a).
The patch is not in the upstream stable 4.4 tree, because it’s not
needed there.
Compared to the upstream 4.4 tree, Ubuntu 4.4.0-124-generic integrated
more hv patches from the mainline kernel, e.g. Drivers: hv: vmbus:
finally fix hv_need_to_signal_on_read(), so it must pick up the above
patch.
We checked the latest Ubuntu 4.4 kernel
(https://kernel.ubuntu.com/git/ubuntu/ubuntu-
xenial.git/tree/?h=Ubuntu-4.4.0-146.172) and the patch is also absent
there.
The patch (13c5e97701091f9b02ded0c68809f8a6b08c747a) can be cleanly
cherry-picked into Ubuntu-4.4.0-146.172.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826416/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
