From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Fri,  6 Jun 2014 11:31:51 -0400
To: 9fans@9fans.net
Message-ID: <83844a27701c037f65e30cd6bd5490e8@brasstown.quanstro.net>
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Subject: [9fans] MIPS _xdec kernel vs. user land
Topicbox-Message-UUID: f65ec176-ead8-11e9-9d60-3106f5b1d025

i know it's not used much, but this is very curious, and if the kernel
version is correct, the user space version needs correcting, too.

the rb kernel version starts with

	TEXT	_xdec(SB), $0
		SYNC

why is a sync necessary?  i would think, if LL/SC don't do what
they do atomicly, then we've already lost, otherwise no sync is
necessary.

- erik