[CFT] SMP/i386 suspend/resume

[Mitsuru IWASAKI]

Hi,  Thanks for your report.

From: Peter Jeremy <peter at rulingia.com>
Subject: Re: [CFT] SMP/i386 suspend/resume
Date: Fri, 11 May 2012 21:20:05 +1000
Message-ID: <20120511112005.GA87299 at server.rulingia.com>

> On 2012-May-11 11:10:19 +0900, Mitsuru IWASAKI <iwasaki at jp.FreeBSD.org> wrote:
> >I've been working on suspend/resume for SMP/i386 for a week
> >and created patches against CURRENT, RELENG_9 and RELENG_8
> >available at:
> 
> Thank you for that.  Since I was in the process of upgrading my
> netbook (Acer Aspire One AOA-110 - Atom N270), I rolled your RELENG_8
> patch on top of r235229.
> 
> Unfortunately, the result hasn't been a complete success.  I can
> suspend to S3 with no problems (though that worked before).  The
> resume is less successful.  If X is running, I get a garbage screen.
> If I suspend at a VTY, the screen comes back correctly but there is no
> response from keyboard, touchpad or wired network (though it has the
> correct lights).
> 
> Let me know if you have any suggestions for debugging.

I think graphic driver (or pic?) has some problems on resume and they
are out of scope of my patches.
HEAD and RELENG_9 have better support on interrupt re-enabling than
RELENG_8 I think.  Could you try them?
And for ps/2 mouse, kernel option PSM_HOOKRESUME and PSM_RESETAFTERSUSPEND
would be useful.

Thanks

> 
> -- 
> Peter Jeremy