[Bug 279245] igc(4) I226 (and I225) TX hangups

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 02 Dec 2025 22:27:52 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279245

--- Comment #13 from Michael Adler <madler@tapil.com> ---
Created attachment 265786
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=265786&action=edit
rc.d script to find I226-V adapters and invoke a script to disable ASPM

Put in /usr/local/etc/rc.d. Runs at boot, finds I226-V adapters and invokes a
script to turn off ASPM in the PCIe link control register.

Also requires the attached aspm_disable script.

For machines that have an option in the BIOS, you might prefer a BIOS switch to
this script.

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