[Bug 289297] Intel Xeon 6 with high number of threads

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 12 Jan 2026 04:05:54 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289297

--- Comment #32 from commit-hook@FreeBSD.org ---
A commit in branch stable/15 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=fe3001bde4849757064e8bb63fdab8b3b797dd6d

commit fe3001bde4849757064e8bb63fdab8b3b797dd6d
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2026-01-03 01:09:32 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-01-12 04:05:08 +0000

    x86: change ap_boot_mtx from spinlock mutex to naive lock

    PR:     289297

    (cherry picked from commit 55305b590797524dd1cecfc9406869700e925e51)

 sys/amd64/amd64/mp_machdep.c |  1 -
 sys/i386/i386/mp_machdep.c   |  2 --
 sys/x86/include/x86_smp.h    |  1 -
 sys/x86/x86/mp_x86.c         | 17 ++++++++++++-----
 4 files changed, 12 insertions(+), 9 deletions(-)

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