** Changed in: linux-oem-osp1 (Ubuntu Bionic)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1880656
Title:
Fix incorrect speed/duplex when I210 device is runtime suspended
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.6 package in Ubuntu:
New
Status in linux-oem-osp1 package in Ubuntu:
New
Status in linux source package in Bionic:
Invalid
Status in linux-oem-5.6 source package in Bionic:
Won't Fix
Status in linux-oem-osp1 source package in Bionic:
Fix Committed
Status in linux source package in Focal:
Fix Committed
Status in linux-oem-5.6 source package in Focal:
Fix Committed
Status in linux-oem-osp1 source package in Focal:
Won't Fix
Bug description:
[Impact]
When I210 device is runtime suspended, trying to read speed or duplex from
sysfs causes an error:
[ 385.991957] igb 0000:03:00.0 enp3s0: PCIe link lost
[Fix]
Only try to read the device register when it's not runtime suspended.
[Test]
Without the fix:
$ cat /sys/class/net/enp3s0/speed
1000
With the fix:
$ cat /sys/class/net/enp3s0/speed
-1
-1 means "unknown speed", which is the correct status when device is
runtime suspend.
[Regression Potential]
Low. It's a trivial fix which limits to one driver.
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