We were discussion if this specific bug was a regression in bug 1766857.
Do you recall prior kernel versions that did not have this specific
issue? If so, we can perform a bisect to narrow down what commit
introduced this.
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => Triaged
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
** Tags added: kernel-hyper-v
** Changed in: linux (Ubuntu Bionic)
Status: Triaged => In Progress
** Changed in: linux (Ubuntu)
Status: Triaged => In Progress
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
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https://bugs.launchpad.net/bugs/1779640
Title:
[Hyper-V] KVP daemon crashes at startup
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
In Progress
Bug description:
While testing Bionic daily build with kernel 4.15.0-20-generic we saw
the following issue with the KVP daemon:
KVP daemon crashes after approximatively 2 minutes of uptime and it enters in
a failed state. The daemon can be manually started and it enters back in active
(running) state.
The error messages from /var/log/syslog after the daemon enters the failed
state are the following:
Apr 25 04:28:46 bionicDaily KVP: read failed; error:9 Bad file descriptor
Apr 25 04:28:46 bionicDaily systemd[1]: hv-kvp-daemon.service: Main process
exited, code=exited, status=1/FAILURE
Apr 25 04:28:46 bionicDaily systemd[1]: hv-kvp-daemon.service: Failed with
result 'exit-code'.
Apr 25 04:28:59 bionicDaily systemd[1]: Started Hyper-V KVP Protocol Daemon.
Note: There was a simmilar issue discussed on this thread
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1664663, but the
fixing commit seems to be inclued in this Bionic build.
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