[Bug 264179] em(4): 13.1-RELEASE hangs on boot at 82574L (em0, 0x10d3) with I219-V (em1, 0x1a1d ) enabled (Intel Alderlake GbE NIC)

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 09 Feb 2023 17:56:49 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264179

--- Comment #6 from Yasuhiro Kimura <yasu@freebsd.org> ---
Recently some commits that change files under sys/dev/e1000 are made to main
branch. So I built install image from base c8f47b28827c and tried booting my
home server with it. Then system boots without hang up but onboard Intel GbE
NIC failed to be detected with following message.

----------------------------------------------------------------------
em1: <Intel(R) I219-V ADL(17)> mem 0x42300000-0x4231ffff at device 31.6 on pci0
em1: Setup of Shared code failed. error -1
em1: IFDI_ATTACH_PRE failed 6
device_attach: em1 attach returned 6
----------------------------------------------------------------------

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