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Date: Thu, 21 Aug 2014 16:44:27 -0700
From: Yuri <yuri@rawbw.com>
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Subject: [VirtualBox] VM freezes when resumed after suspend caused by disk full
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I noticed this few times that when VM hits disk full and gets to suspend 
state, resuming it when disk is available leads to its freeze.
Nothing obviously wrong is in log:
00:02:01.239279 Console: VM runtime error: fatal=false, 
errorID=DevATA_DISKFULL message="Host system reported disk full. VM 
execution is suspended. You can resume after freeing some space"
00:08:30.498511 Changing the VM state from 'SUSPENDED' to 'RESUMING'.
00:08:30.498764 Changing the VM state from 'RESUMING' to 'RUNNING'.
00:08:46.279197 Changing the VM state from 'RUNNING' to 'SUSPENDING'.
00:08:46.279234 PDMR3Suspend: after     0 ms, 1 loops: 1 async tasks - 
piix3ide/0
00:08:48.728885 PDMR3Suspend: after  2449 ms, 2 loops: 1 async tasks - 
piix3ide/0
00:08:51.726329 PDMR3Suspend: after  5447 ms, 3 loops: 1 async tasks - 
piix3ide/0
00:08:54.726516 PDMR3Suspend: after  8447 ms, 4 loops: 1 async tasks - 
piix3ide/0
<... here machine was alredy frozen ...>

Observed this with various FreeBSD guests on amd64 10-STABLE host.

virtualbox-ose-4.3.12_1

Yuri