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[Bug 1880656] Autopkgtest regression report (linux-oracle-5.4/5.4.0-1019.19~18.04.1)

All autopkgtests for the newly accepted linux-oracle-5.4 (5.4.0-1019.19~18.04.1) for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

zfs-linux/unknown (armhf)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/bionic/update_excuses.html#linux-oracle-5.4


[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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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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