Azure: hv_netvsc: Fix race between VF offering and VF association message from host
Bug #1994974 reported by
Tim Gardner
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-azure (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Focal |
Fix Released
|
Medium
|
Tim Gardner | ||
Jammy |
Fix Released
|
Medium
|
Tim Gardner | ||
Kinetic |
Won't Fix
|
Medium
|
Tim Gardner |
Bug Description
SRU Justification
[Impact]
During vm boot, there might be possibility that vf registration call comes before the vf association from host to vm.
And this might break netvsc vf path, this is in order to prevent the same block vf registration until vf bind message comes from host.
[Test Plan]
Microsoft tested
[Where things could go wrong]
The 5.4 backport patch could hang waiting for a VF addition to complete.
[Other Info]
SF: #00347129
affects: | linux (Ubuntu) → linux-azure (Ubuntu) |
Changed in linux-azure (Ubuntu Focal): | |
assignee: | nobody → Tim Gardner (timg-tpi) |
importance: | Undecided → Medium |
status: | New → In Progress |
Changed in linux-azure (Ubuntu): | |
status: | New → Fix Released |
Changed in linux-azure (Ubuntu Jammy): | |
assignee: | nobody → Tim Gardner (timg-tpi) |
importance: | Undecided → Medium |
status: | New → In Progress |
Changed in linux-azure (Ubuntu Focal): | |
status: | In Progress → Fix Committed |
Changed in linux-azure (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
Changed in linux-azure (Ubuntu Kinetic): | |
status: | In Progress → Fix Committed |
Changed in linux-azure (Ubuntu): | |
status: | In Progress → Fix Released |
assignee: | Tim Gardner (timg-tpi) → nobody |
tags: |
added: verification-done-focal removed: verification-needed-focal |
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Patches submitted: https:/ /lists. ubuntu. com/archives/ kernel- team/2022- October/ 134324. html /kernel. ubuntu. com/~rtg/ focal-azure- vf-race- lp1994974/ 5.4.0-1096. 102~lp1994974. 1/
Focal test kernel: https:/