[Bug 289545] No option to disable NOMAP leads to network down/up with em0 when starting bridge.

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 19 Sep 2025 17:37:52 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289545

--- Comment #9 from Zhenlei Huang <zlei@FreeBSD.org> ---
(In reply to Mark Johnston from comment #7)
The reporter is on FreeBSD 13.5 .

The IFCAP_NOMAP was introduced by John via commit
https://cgit.freebsd.org/src/commit/?id=82334850ea451f7f6903be20e4836118e6a77460
, and later it was refactored by Gleb, and converted to IFCAP_MEXTPG via commit
https://cgit.freebsd.org/src/commit/?id=3f43ada98c89bce5ae416e203ba0e81595a5cd88
. The commit was MFCed to stable/13 and is in releng/13.5 .

It appears the refactoring is not complete. The `\33NOMAP` in ifconfig.c was
left unchanged. I think that should be converted to `\33MEXTPG` ( for stable/13
) . CC @Gleb .

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