Re: [Xen-devel] [TestDay]Xen-4.5-RC1: Dom0 failed to resume from S3 power state with operations on '/sys/power/state'

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 13.11.14 at 03:32, <robert.hu@xxxxxxxxx> wrote:
> Hi,
> 
> This is a separated report for bug 
> http://bugzilla-archived.xenproject.org/bugzilla/show_bug.cgi?id=1897 
> 
> Environment:
> ------------
> Service Arch (ia32/ia32e/IA64): ia32e
> Guest Arch (ia32/ia32e/IA64): 
> Guest OS Type (Linux/Windows):
> Change Set: Xen4.5-RC1 (git:1b068a5b485062c862c20d8ba7674faa97ee3714)
> Hardware: Ivybridge-EP, Grantley-EP
> Other:
> 
> 
> Bug detailed description:
> --------------------------
> Boot into Dom0 (kernel 3.17.0), execute the command "echo mem > 
> /sys/power/state", to make Dom0
> system get into S3 sleep state, then press any key or power button to resume 
> 
> from S3
> state, but failed and system hangs up with black screen.
> 
> 
> Reproduce steps:
> ----------------
> 1. Boot into Dom0, execute the command "echo mem > /sys/power/state" to make
> Dom0 get into S3 state.
> 2. Press any key  or press power button to resume from S3,no resume to dom0
> 
> Current result:
> ----------------
> Dom0 system cannot resume from S3 power state.

Considering the Konrad confirmed this to work on other hardware
it's likely going to be difficult to analyze this for anyone not in
possession of a machine where things don't work as expected. I.e.
again presumably a case where at least initial investigation would
ideally be done by your engineers.

Jan


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