https://bugzilla.kernel.org/show_bug.cgi?id=63391
--- Comment #10 from Tasev Nikola tasev.stefanoska@skynet.be --- Hi,
I tested final 3.12 and the bug is still there. I 'm closing this bug because for me is not a big issue, i just disabled dpm and my system is stable. I hear that in next 3.13 kernel the dpm will be enabled by default, i hope that the kernel parameter will still exist so i can disable it. I don't no how to help moore to debug this so for now i'm closing this bug.