[Bug 281691] Linuxulator: missing membarrier(2)

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 04 Oct 2024 01:08:56 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281691

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 =         0x00000080,
        MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ = 0x00000100,

Also Linux 6.3 added new command MEMBARRIER_CMD_GET_REGISTRATIONS.

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