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Date:      Fri, 04 Oct 2024 01:08:56 +0000
From:      bugzilla-noreply@freebsd.org
To:        emulation@FreeBSD.org
Subject:   [Bug 281691] Linuxulator: missing membarrier(2)
Message-ID:  <bug-281691-4077-pCDDOGqY16@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-281691-4077@https.bugs.freebsd.org/bugzilla/>
References:  <bug-281691-4077@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D281691

Ed Maste <emaste@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |emaste@freebsd.org

--- Comment #1 from Ed Maste <emaste@freebsd.org> ---
It appears we're compatible on cmd values, but:
        /*
         * RSEQ constants are defined for source compatibility but are
         * not yes supported, MEMBARRIER_CMD_QUERY does not return
         * them in the mask.
         */
        MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ =3D         0x00000080,
        MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ =3D 0x00000100,

Also Linux 6.3 added new command MEMBARRIER_CMD_GET_REGISTRATIONS.

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