svn commit: r346619 - head/sys/powerpc/aim

[Enji Cooper]

> On Apr 23, 2019, at 19:51, Justin Hibbits <jhibbits at freebsd.org> wrote:
> 
> Author: jhibbits
> Date: Wed Apr 24 02:51:58 2019
> New Revision: 346619
> URL: https://svnweb.freebsd.org/changeset/base/346619
> 
> Log:
>  powerpc: Add a couple missing isyncs
> 
>  mtmsr and mtsr require context synchronizing instructions to follow.  Without
>  a CSI, there's a chance for a machine check exception.  This reportedly does
>  occur on a MPC750 (PowerMac G3).

G3?! Wow... the oldest I’ve used is the G4, back a decade and a half ago :0...
-Enji