[RELEASE BLOCKER] Call trace during nvme storage performance test in bionic/linux-azure 4.15.0-1154
Bug #1996093 reported by
John Cabaj
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-azure (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bionic |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
John Cabaj | ||
linux-azure-4.15 (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
John Cabaj | ||
Focal |
Invalid
|
Undecided
|
Unassigned |
Bug Description
SRU Justification
[Impact]
Hypervisor only allocates interrupts to happen on a single physical GPU, which can lead to CPU soft locks when using PCI NVME under heavy load.
[Test Case]
Microsoft tested
[Where things could go wrong]
Hypervisor PCI driver may not load correctly. Patch did not apply cleanly and could lead to merge conflicts once the upstream patch is pulled in.
[Other Info]
SF: #00347669
Changed in linux-azure (Ubuntu Bionic): | |
status: | New → Invalid |
Changed in linux-azure (Ubuntu Focal): | |
assignee: | nobody → John Cabaj (john-cabaj) |
status: | New → In Progress |
Changed in linux-azure-4.15 (Ubuntu Focal): | |
status: | New → Invalid |
Changed in linux-azure-4.15 (Ubuntu Bionic): | |
status: | New → In Progress |
assignee: | nobody → John Cabaj (john-cabaj) |
Changed in linux-azure-4.15 (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
Changed in linux-azure (Ubuntu Focal): | |
status: | In Progress → Invalid |
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This bug is awaiting verification that the linux-azure- 4.15/4. 15.0-1158. 173 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- bionic' to 'verification- done-bionic' . If the problem still exists, change the tag 'verification- needed- bionic' to 'verification- failed- bionic' .
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!