Fix system reboot when disconnecting WiFi
Bug #1899726 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
High
|
Unassigned | ||
Focal |
Fix Released
|
High
|
Unassigned | ||
Groovy |
Fix Released
|
High
|
Unassigned | ||
linux-oem-5.6 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
High
|
Unassigned | ||
Groovy |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
Hardware triggrs reboot when disconnecting WiFi connection.
[Fix]
There's a DMA bug in Intel WiFi 9000 needs to be limits to 6 RX queue
max.
[Test]
With the patch applied, a 1000 times of connect/disconnect loop doesn't
bring the system down.
[Regression Potential]
Not that I can think of. Hypothetically reducing RX queue rings will
reduce the RX speed, but the wireless transfter is a lot slower then DMA
operation, so we won't see any difference.
CVE References
Changed in linux (Ubuntu Focal): | |
status: | New → Confirmed |
Changed in linux (Ubuntu Groovy): | |
status: | New → Confirmed |
Changed in linux-oem-5.6 (Ubuntu Focal): | |
status: | New → Confirmed |
Changed in linux-oem-5.6 (Ubuntu Groovy): | |
status: | New → Invalid |
Changed in linux (Ubuntu Focal): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Groovy): | |
importance: | Undecided → High |
Changed in linux-oem-5.6 (Ubuntu Focal): | |
importance: | Undecided → High |
tags: | added: oem-priority originate-from-1891986 sutton |
Changed in linux-oem-5.6 (Ubuntu Focal): | |
status: | Confirmed → Fix Committed |
Changed in linux (Ubuntu Focal): | |
status: | Confirmed → Fix Committed |
Changed in hwe-next: | |
status: | New → 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- focal' to 'verification- done-focal' . If the problem still exists, change the tag 'verification- needed- focal' to 'verification- failed- focal'.
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!