[vbox-dev] savestate still hangs sometimes (reported before)

Huihong Luo huisinro at yahoo.com
Mon Aug 9 17:12:28 GMT 2010

I did some more investigation, the hang is caused by this call:
DECLCALLBACK(int) Console::saveStateThread(RTTHREAD Thread, void *pvUser)
int vrc = VMR3Save(that->mpVM,
false, /*fContinueAfterwards*/
&fSuspenededBySave);                      <====
after 0% was printed out, VMR3Save() never returns.
Interestingly, the freeze might to do with 2D accleration, because if I disble 2D acceleration, it does not occur that often. 
The freeze won't occur if doing saving state from the vm GUI console, the Close button.

--- On Fri, 7/23/10, Huihong Luo <huisinro at yahoo.com> wrote:

From: Huihong Luo <huisinro at yahoo.com>
Subject: savestate still hangs sometimes (reported before)
To: vbox-dev at virtualbox.org
Date: Friday, July 23, 2010, 6:53 PM

when 2D acceleration is enabled
c:\virtualbox-dev\vbox\out\win.x86\release\bin>VBoxManage.exe controlvm vm1 savestate
hangs after 0% is displayed.
If doing from the Close menu, after dialog box is displayed, then choose Save State, then works well.
I tried to break the code, it seems stop inside some Windows message loop.
This is very annoying. need to fix these crash bugs when vm is shutting down.
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