Mellanox Patches To Prevent Kernel Hang In MLX4

Bug #1914830 reported by Joseph Salisbury
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-azure (Ubuntu)
Fix Released
High
Guilherme G. Piccoli
Bionic
Fix Released
Medium
Guilherme G. Piccoli
Focal
Fix Released
Medium
Guilherme G. Piccoli
Groovy
Fix Released
Medium
Guilherme G. Piccoli

Bug Description

We have had customer reports of kernel hangs related to MLX4. Mellanox has addressed the issue with the following two patches:

fed91613c9dd ("net/mlx4_en: Avoid scheduling restart task if it is already running")
ba603d9d7b12 ("net/mlx4_en: Handle TX error CQE")

Microsoft would like to request these two commits in all releases supported on Azure.

Revision history for this message
Guilherme G. Piccoli (gpiccoli) wrote :

Hi Joe, both patches you requested were backported to linux stable, and hence they came
organically to our Ubuntu kernels; they are already available to azure kernels in the following
versions (both currently in -proposed):

4.15.0.1107
5.4.0-1040

They're also available in version 5.8 , for the main kernel - the rebase work for Azure is ongoing
and should be completed soon, I'll let you know when that happens.
Thanks!

Changed in linux-azure (Ubuntu):
status: New → In Progress
Changed in linux-azure (Ubuntu Bionic):
status: New → Fix Committed
Changed in linux-azure (Ubuntu Focal):
status: New → Fix Committed
Changed in linux-azure (Ubuntu Groovy):
status: New → In Progress
Changed in linux-azure (Ubuntu):
importance: Undecided → High
Changed in linux-azure (Ubuntu Bionic):
importance: Undecided → Medium
Changed in linux-azure (Ubuntu Focal):
importance: Undecided → Medium
Changed in linux-azure (Ubuntu Groovy):
importance: Undecided → Medium
importance: Medium → High
Changed in linux-azure (Ubuntu):
assignee: nobody → Guilherme G. Piccoli (gpiccoli)
Changed in linux-azure (Ubuntu Bionic):
assignee: nobody → Guilherme G. Piccoli (gpiccoli)
Changed in linux-azure (Ubuntu Focal):
assignee: nobody → Guilherme G. Piccoli (gpiccoli)
Changed in linux-azure (Ubuntu Groovy):
assignee: nobody → Guilherme G. Piccoli (gpiccoli)
Changed in linux-azure (Ubuntu Bionic):
status: Fix Committed → Fix Released
Changed in linux-azure (Ubuntu Focal):
status: Fix Committed → Fix Released
Changed in linux-azure (Ubuntu Groovy):
status: In Progress → Fix Committed
importance: High → Medium
Changed in linux-azure (Ubuntu Groovy):
status: Fix Committed → Fix Released
Changed in linux-azure (Ubuntu):
status: In Progress → Fix Released
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