Did you try the tboot + linux kernel? 

-----Original Message-----
From: Ross Philipson [mailto:ross.philip...@gmail.com] 
Sent: Tuesday, September 15, 2015 8:02 AM
To: Sun, Ning; tboot-devel@lists.sourceforge.net
Subject: Re: [tboot-devel] TBOOT 1.8.3 fails to resume from S3

On 09/14/2015 03:54 PM, Sun, Ning wrote:
> Try these commands in a script, and check the print-out after resumed from S3:
> date
> sudo rtcwake -u -s 20 -m mem
> date
>
>
> Thanks,
> -ning
>

I started another thread where I explain what the actual problems are in the 
log compression code. But in order to not ignore this response, I ran the above:

root@xenclient-dom0:/storage# ./do-s3.sh Tue Sep 15 14:37:17 UTC 2015 wakeup 
from "mem" at Tue Sep 15 14:37:38 2015 Tue Sep 15 14:38:57 UTC 2015

It is taking 1m and 40s to come back. 20s are the delay for rtcwake but the 1m 
20s remaining is spent in LZ_Compress.

[snip]


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