I have this issue as well when using the FIPS 5.4.0 kernel with 3 Dell
models. Precision 7770, Precision 7670, and Precision 3571 all with the
I219-LM NIC. I was able to get the source from Intel's website and
figured out how to make the e1000e driver, but it does not work well on
all the models.
I'm not 100% if this trace is directly related to the NIC driver,
however it was int middle of two "Unit Hang" messages, so I pasted it
here. Might be a bi-product.
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Sun Jun 4 13:25:23 2023] [ cut here ]
[Sun Jun 4 13:25:23 2023] NETDEV WATCHDOG: eno1 (e1000e): transmit queue 0
timed out
[Sun Jun 4 13:25:23 2023] WARNING: CPU: 11 PID: 0 at
net/sched/sch_generic.c:477 dev_watchdog+0x27a/0x290
[Sun Jun 4 13:25:23 2023] Modules
I disabled APMS under Advanced Settings in BIOS, but that did not make a
difference. Also, upgraded one of the nodes to Focal HWE 5.15 kernel and
both are still having the same issues
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This NIC is supported by the 5.4.0 Focal LTS kernel, however, any
changes on the switch side or even disconnecting and connecting the
Ethernet cable causes the card to hang:
Jun 03 18:32:58 kvm-02 kernel: e1000e :00:1f.6 eno1: Detected Hardware Unit
Hang:
TDH
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/2001567
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