Public bug reported:
[Impact]
Intel I219 ethernet may wrongly detect 1Gbps network as 10Mbps after
ethernet cable hotplugging.
[Fix]
Use delayed work before deciding the network speed.
This essentially workarounds unreliable reading on MII_BMSR register.
[Test]
Before the patch the network operates at 10Mbps after cable gets
plugged.
With the fix, network always operates in 1Gbps.
[Regression Potential]
Low. It changes the watchdog task from timer to delayed work, the logic
is essentially the same.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Affects: linux-oem (Ubuntu Disco)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-osp1 (Ubuntu Disco)
Importance: Undecided
Status: Invalid
** Tags: oem-priority originate-from-1830168 somerville
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Tags added: oem-priority originate-from-1830168 somerville
** Changed in: linux-oem (Ubuntu Disco)
Status: New => Invalid
** Changed in: linux-oem-osp1 (Ubuntu Disco)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1836177
Title:
Intel ethernet I219 may wrongly detect connection speed as 10Mbps
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