PCIe link speeds of 16 GT/s are shown as "Unknown speed"
Bug #1773243 reported by
dann frazier
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
dann frazier | ||
Bionic |
Fix Released
|
Undecided
|
dann frazier |
Bug Description
[Impact]
sysfs shows the linkspeed of 16 GT/s devices as "Unknown", so the user can't actually see what speed it is capable of, or currently running at.
[Test Case]
For a PCIe device that supports 16 GT/s:
$ cat /sys/devices/
16 GT/s
[Fix]
Cherry-pick an upstream commit that supports in-kernel decoding of 16 GT/s link speed
[Regression Risk]
Trivial fix that just adds an extra case in a switch statement w/ supporting #defines.
CVE References
Changed in linux (Ubuntu Bionic): | |
status: | New → In Progress |
Changed in linux (Ubuntu): | |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu Bionic): | |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
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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- 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!