Accelerated networking (SR-IOV VF) broken in 18.10 daily
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
High
|
Unassigned | ||
Cosmic |
Invalid
|
Undecided
|
Unassigned | ||
linux-azure (Ubuntu) |
Fix Released
|
High
|
Marcelo Cerri | ||
Cosmic |
Fix Released
|
Undecided
|
Marcelo Cerri |
Bug Description
While testing Ubuntu 18.10 daily from cloud-images repo, on Azure, we discovered that accelerated networking wasn’t working inside the VM.
No VF shows up inside the VM and lspci didn’t show any Mellanox drivers in use.
We tested the daily build on Hyper-V also, but there the Mellanox VF is functional, with the same mlx4 drivers.
To give more details about this:
• No mellanox logs are showing up in dmesg or syslog.
• Modinfo mlx4_core/mlx4_en finds the module, but lsmod doesn’t show it as loaded, although Accelerated Networking is enabled for the Azure VM, so this should happen transparently.
• Modprobe -r mlx4_core && modprobe mlx4_core is giving 0 exit code, but nothing really happens. And no Mellanox messages are logged in dmesg/syslog.
- There are no entries in the logs to show anything about the drivers or netvsc/pci-hyperv that might relate to this issue.
Kernel: 4.18.0-7-generic
CVE References
description: | updated |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
tags: | added: kernel-key |
Changed in linux (Ubuntu Cosmic): | |
assignee: | nobody → Marcelo Cerri (mhcerri) |
tags: |
added: kernel-da-key removed: kernel-key |
summary: |
- [Azure] Accelerated networking broken in 18.10 daily + Accelerated networking (SR-IOV VF) broken in 18.10 daily |
no longer affects: | linux-azure (Ubuntu Cosmic) |
no longer affects: | linux-azure (Ubuntu Bionic) |
no longer affects: | linux (Ubuntu Bionic) |
Changed in linux-azure (Ubuntu): | |
assignee: | nobody → Marcelo Cerri (mhcerri) |
importance: | Undecided → High |
status: | New → Confirmed |
Changed in linux-azure (Ubuntu): | |
importance: | High → Critical |
Changed in linux (Ubuntu Cosmic): | |
importance: | High → Critical |
Changed in linux (Ubuntu): | |
importance: | High → Critical |
Changed in linux (Ubuntu Cosmic): | |
status: | Confirmed → In Progress |
Changed in linux (Ubuntu): | |
status: | Confirmed → In Progress |
Changed in linux-azure (Ubuntu): | |
status: | Confirmed → In Progress |
Changed in linux (Ubuntu): | |
importance: | Critical → High |
Changed in linux (Ubuntu Cosmic): | |
importance: | Critical → High |
Changed in linux-azure (Ubuntu): | |
importance: | Critical → High |
Changed in linux (Ubuntu): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Cosmic): | |
status: | In Progress → Fix Committed |
Changed in linux-azure (Ubuntu): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Cosmic): | |
status: | Fix Committed → Confirmed |
Changed in linux-azure (Ubuntu): | |
status: | Fix Committed → Confirmed |
no longer affects: | linux (Ubuntu Cosmic) |
Changed in linux-azure (Ubuntu): | |
status: | Confirmed → Fix Committed |
Changed in linux-azure (Ubuntu Cosmic): | |
status: | New → Fix Committed |
assignee: | nobody → Marcelo Cerri (mhcerri) |
Changed in linux (Ubuntu Cosmic): | |
status: | New → Invalid |
Changed in linux (Ubuntu): | |
status: | Fix Committed → Invalid |
Changed in linux-azure (Ubuntu): | |
status: | Fix Committed → Fix Released |
tags: | added: cscc |
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 1794477
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.