[Bug 254341] igb hung every 5-20 hours. ifconfig down+up solves the problem for next N hours

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 05 Oct 2021 14:43:02 UTC

--- Comment #13 from Vladislav Shabanov <vlad.shabanov@gmail.com> ---
Kevin, thank you for your reply.
Changes on this server from March, 2021 till now (October, 2021):
1. Now it’s FreeBSD 13.0
2. On both sides of cable the wire configured to media 100baseTX mediaopt
full-duplex. There are no crc errors now, but the problem persists.
3. BIOS has version from 2019.11.02. As far as I understand, all newer versions
have patches in CPU microcode, but nothing changed in other parts of the BIOS.
However, I will update BIOS in next weeks. 
4. The problem persists, hung occurs every couple of days.
5. I added dump for RX Registers, new pair of files attached.

With best regargs, 

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