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Date:      Sat, 25 Aug 2018 21:59:18 +0000
From:      bugzilla-noreply@freebsd.org
To:        toolchain@FreeBSD.org
Subject:   [Bug 230888] Missing 64 bit atomic functions for i386
Message-ID:  <bug-230888-29464-gPAFQTlYXa@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-230888-29464@https.bugs.freebsd.org/bugzilla/>
References:  <bug-230888-29464@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230888

Conrad Meyer <cem@freebsd.org> changed:

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

--- Comment #2 from Conrad Meyer <cem@freebsd.org> ---
Isn't (1) just: kernel: mask all interrupts, do operation, unmask; userspace:
take a global mutex over the op?

Do we care if 64-bit atomics don't work from NMI contexts on i486-class
hardware?  I doubt it.

I'm also pro gone_in(12)'ing i486 and lower.

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