** Changed in: hwe-next
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1966835
Title:
e1000e reports hardware hang
Status in HWE Next:
Fix Released
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux-oem-5.14 source package in Focal:
Fix Released
Bug description:
[Impact]
Encounter the e1000e h/w hang while doing suspend/resume test
kernel: e1000e 0000:00:1f.6 enp0s31f6: Detected Hardware Unit Hang:
TDH <4>
TDT <9>
next_to_use <9>
next_to_clean <4>
buffer_info[next_to_clean]:
time_stamp <100056968>
next_to_watch <4>
jiffies <100056c40>
next_to_watch.status <0>
MAC Status <40080283>
PHY Status <796d>
PHY 1000BASE-T Status <3800>
PHY Extended Status <3000>
PCI Status <10>
[Fix]
Intel provides a patch to fix this issue which is landed in v5.17-rc7
1866aa0d0d64 e1000e: Fix possible HW unit hang after an s0ix exit
[Test]
Verified by ODM on Dell machines
[Where problems could occur]
The fix disable PHY reset when runtime suspended, the PHY will be reset after
resumed. So, it should not introduce any regression.
[Misc]
Jammy(5.15) has this fix through stable update.
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