** Changed in: linux-oem-osp1 (Ubuntu Bionic)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1836177
Title:
Intel ethernet I219 may wrongly detect connection speed as 10Mbps
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem package in Ubuntu:
New
Status in linux-oem-osp1 package in Ubuntu:
New
Status in linux source package in Bionic:
Incomplete
Status in linux-oem source package in Bionic:
New
Status in linux-oem-osp1 source package in Bionic:
Fix Committed
Status in linux source package in Disco:
Incomplete
Status in linux-oem source package in Disco:
Invalid
Status in linux-oem-osp1 source package in Disco:
Invalid
Bug description:
[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.
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