thunder: chip errata w/ multiple CQEs for a TSO packet
Bug #1624569 reported by
dann frazier
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
dann frazier | ||
Xenial |
Fix Released
|
High
|
dann frazier |
Bug Description
[Impact]
With small segment sizes, it is possible for the driver to free an SKB before transmitting it, potentially resulting in a crash.
[Test Case]
The test case for this is to use a small MTU (200) and mount an NFS exported directory. Create several (~4) 1M files w/ dd, then copy them locally. However, I have not been able to trigger the crash myself.
[Regression Risk]
Fix is upstream, so regressions will have upstream support. Fix is limited to a driver that is only applicable to the Cavium Thunder-X SoC, so risk is negligible to other platforms.
summary: |
- thunder: + thunder: chip errata w/ multiple CQEs for a TSO packet |
Changed in linux (Ubuntu Xenial): | |
status: | New → In Progress |
importance: | Undecided → High |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu Xenial): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu): | |
status: | Fix Committed → Fix Released |
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This bug is awaiting verification that the 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- xenial' to 'verification- done-xenial' .
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!