[SRU][I/J/OEM-5.13/OEM-5.14] Fix pci port lost when hotplug dock
Bug #1954646 reported by
AaronMa
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
AaronMa | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Impish |
Fix Released
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem-5.13 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem-5.14 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
On Intel Maple Ridge, when hotplug TBT4 dock, PCIe bus show error "severity=
and failed to probe.
[Fix]
Re-enable PCIe port LTR after reset or hotplug, and probe it properly.
[Test]
Verified on HW with TBT4 dock. it works fine.
Also tested Tiger Lake-LP Thunderbolt 4, tbt4 dock works fine.
Tested on AMD Cezanne, PCIe works fine, it doesn't support thunderbolt.
[Where problems could occur]
PCI bus may break.
CVE References
tags: | added: oem-priority originate-from-1945164 sutton |
no longer affects: | linux (Ubuntu Focal) |
no longer affects: | linux-oem-5.13 (Ubuntu Impish) |
no longer affects: | linux-oem-5.13 (Ubuntu Jammy) |
no longer affects: | linux-oem-5.14 (Ubuntu Impish) |
no longer affects: | linux-oem-5.14 (Ubuntu Jammy) |
Changed in linux (Ubuntu Jammy): | |
status: | Incomplete → New |
Changed in hwe-next: | |
assignee: | nobody → AaronMa (mapengyu) |
Changed in linux (Ubuntu): | |
status: | New → Incomplete |
Changed in linux (Ubuntu Jammy): | |
status: | Incomplete → New |
status: | New → In Progress |
Changed in linux (Ubuntu Impish): | |
status: | New → In Progress |
Changed in linux (Ubuntu Impish): | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
Changed in hwe-next: | |
status: | New → Fix Released |
tags: |
added: verification-done-impish removed: verification-needed-impish |
Changed in linux-oem-5.14 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-5.13 (Ubuntu): | |
status: | New → Invalid |
To post a comment you must log in.
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1954646
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.