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Date:      Tue, 07 Jan 2025 18:14:53 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   =?UTF-8?B?W0J1ZyAyNzUwODZdIE9sZCBpMzg2IGJvb3Q6IENQVTA6IGxvY2Fs?= =?UTF-8?B?IEFQSUMgZXJyb3IgMHg0IOKAkyBDYW5ub3QgYm9vdCBhbnkgbG9uZ2Vy?=
Message-ID:  <bug-275086-227-ccrB0boNt3@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-275086-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275086

--- Comment #4 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=254a2b767f9a39f1541e0a07a70bbe269e86ad70

commit 254a2b767f9a39f1541e0a07a70bbe269e86ad70
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2025-01-07 17:58:58 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2025-01-07 18:13:54 +0000

    x86: Short-circuit ipi_all_but_self() on UP systems

    Apparently this is required on old intel hw, see
    https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275086#c3

    PR:             275086
    Reviewed by:    mav, kib
    Fixes:          279cd05b7e4d ("Use APIC_IPI_DEST_OTHERS for bitmapped IPIs
too.")
    MFC after:      1 week
    Diagnosed by:   Ben Wilber <ben@desync.com>
    Differential Revision:  https://reviews.freebsd.org/D48361

 sys/x86/x86/mp_x86.c | 3 +++
 1 file changed, 3 insertions(+)

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