IB peer memory feature regressed in 6.5
Bug #2055082 reported by
dann frazier
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
Mantic |
Fix Released
|
Medium
|
dann frazier |
Bug Description
[Impact]
The GPU Direct over Infiniband feature of NVIDIA GPUs no longer works on jammy/hwe kernels that have migrated to 6.5 *except* for the -nvidia kernel, which pulled in support via bug 2049537.
We have carried this patch since 5.4 (see bug 1923104). We do not plan to carry this patch into 6.8 or later - we are working on a deprecation post for that to give users some time to migrate.
CVE References
Changed in linux (Ubuntu): | |
status: | New → Won't Fix |
Changed in linux (Ubuntu Mantic): | |
status: | New → In Progress |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu Mantic): | |
importance: | Undecided → Medium |
status: | In Progress → Fix Committed |
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This bug is awaiting verification that the linux/6.5.0-27.28 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- mantic- linux' to 'verification- done-mantic- linux'. If the problem still exists, change the tag 'verification- needed- mantic- linux' to 'verification- failed- mantic- linux'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!