System randomly hangs during suspend when mei_wdt is loaded
Bug #1803942 reported by
Robert Liu
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Triaged
|
Medium
|
Unassigned | ||
Bionic |
Fix Released
|
Medium
|
Unassigned |
Bug Description
Problem description:
System randomly hangs during suspend when mei_wdt is loaded.
Platform:
Intel Dawson Canyon I5 (NUC7i5DNHE) and I7 (NUC7i7DNHE)
Test procedure:
1. Install Ubuntu 18.04 and do apt full-upgrade
2. Enable mei_wdt:
$ sudo modprobe mei_wdt
3. Do system S3 test:
$ sudo systemctl suspend
or
$ sudo rtcwake -v -m mem -s 15
4. Afterward, I noticed that somehow system will hang during suspend/resume.
Expect result:
Suspend/resume won't impact system.
Actual result:
System will hang during S3 test.
Additional info:
- BIOS version: V57
- Another i3 platform (NUC7i3DNHNC) doesn't have this issue.
CVE References
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
tags: | added: dawson originate-from-1803076 |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Confirmed → Triaged |
Changed in linux (Ubuntu Bionic): | |
status: | New → Triaged |
importance: | Undecided → Medium |
tags: | added: kernel-da-key |
Changed in linux (Ubuntu Bionic): | |
status: | Triaged → Fix Committed |
tags: | added: cscc |
Changed in hwe-next: | |
status: | New → Fix Released |
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apport-collect 1803942
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the Ubuntu Kernel Team.