[Qemu-devel] [RFH] Qemu main thread is blocked in g_poll in windows guest

[Xiexiangyou]

Hi all:

Windows2008 Guest run without pressure for long time. Sometimes, it stop and 
looks like hanging. But when I connect to it with VNC, It resume to run, but 
VM's time is delayed . 
When the vm is hanging, I check the main thread of QEMU. I find that the thread 
is blocked in g_poll function. it is waiting for a SIG, However, there is no 
SIG .

I tried the clock with "hpet" and "no hpet", but came out the same problem. 
Then I upgrade the glibc to newer, it didn't work too.
I'm confused. Is the reason that VM in sleep state and doesn't emit the signal. 
I set the windows 's "power option", enable/disable the "allow the wake 
timers", I didn't work.

Is anybody have met the same problem before, or know the reason. Your reply 
will be very helpful.

Thanks

--xiexiangyou