3.4.1 suspend / hibernate resume not working.

3.4.1 suspend / hibernate resume not working.

[n4rC0t1C]

Hi guys, 
i've read, a few threads ago, that suspend/resume should work on 3.4
kernels. 
Actually it doesn't work for me, the system goes on suspend, keeping
monitors on and power led blinking, but it never resumes, I always have to
brutally shutdown it. CONFIG_XEN_ACPI_PROCESSOR is set. 
Same thing it always did with previouses kernels. 
It works flawlessy if I start the system without the xen hypervisor. 
I was wondering, is there anyway to debug this? Any hints? Am I missing
something? 

I attach my dmesg log and xl info output. 

Ubuntu 12.04 
Linux thebeast 3.4.1-030401-generic #201206041411 SMP Mon Jun 4 18:12:24 UTC
2012 x86_64 x86_64 x86_64 GNU/Linux 
host                   : thebeast 
release                : 3.4.1-030401-generic 
version                : #201206041411 SMP Mon Jun 4 18:12:24 UTC 2012 
machine                : x86_64 
nr_cpus                : 4 
max_cpu_id             : 3 
nr_nodes               : 1 
cores_per_socket       : 4 
threads_per_core       : 1 
cpu_mhz                : 3292 
hw_caps                :
bfebfbff:28100800:00000000:00003f40:17bae3ff:00000000:00000001:00000000 
virt_caps              : hvm hvm_directio 
total_memory           : 8081 
free_memory            : 996 
sharing_freed_memory   : 0 
sharing_used_memory    : 0 
free_cpus              : 0 
xen_major              : 4 
xen_minor              : 2 
xen_extra              : -unstable 
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_scheduler          : credit 
xen_pagesize           : 4096 
platform_params        : virt_start=0xffff800000000000 
xen_changeset          : Thu Jun 07 19:46:57 2012 +0100 25467:32034d1914a6 
xen_commandline        : placeholder 
cc_compiler            : gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) 
cc_compile_by          : ivobacco 
cc_compile_domain      : 
cc_compile_date        : Fri Jun  8 02:54:27 CEST 2012 
xend_config_format     : 4 

http://xen.1045712.n5.nabble.com/file/n5709428/dmesg dmesg 

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