[Hyper-V] Add support for VMBus panic notifier handler
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Trusty |
Fix Released
|
Medium
|
Unassigned | ||
Utopic |
Fix Released
|
Medium
|
Unassigned | ||
Vivid |
Fix Released
|
Medium
|
Unassigned | ||
Wily |
Fix Released
|
Medium
|
Unassigned |
Bug Description
Please take these patches to our Hyper-V VMBus driver to enable kernel crash notification:
Drivers: hv: vmbus: Add support for VMBus panic notifier handler
https:/
Drivers: hv: vmbus: Correcting truncation error for constant HV_CRASH_
https:/
In the event of a kernel panic, VMBus driver supports sending five 64-bit values to be recorded in the log. On Hyper-V this is recorded in the event log, and on Azure we can use this data to better detect failures like this in the guest VM and surface that as part of our diagnostics information.
CVE References
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
tags: | added: kernel-da-key |
Changed in linux (Ubuntu Vivid): | |
status: | New → Confirmed |
Changed in linux (Ubuntu Utopic): | |
status: | New → Confirmed |
Changed in linux (Ubuntu Trusty): | |
status: | New → Confirmed |
Changed in linux (Ubuntu Vivid): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Trusty): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Utopic): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Trusty): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Utopic): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Vivid): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Wily): | |
status: | In Progress → Fix Released |
Changed in linux (Ubuntu): | |
status: | In Progress → Fix Released |
Test case on Hyper-V: trigger"
- Run: "echo c > /proc/sysrq-
- If the Panic Notifier code is present, an event 18590 should be logged.