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Ticket Resolution Summary Owner Reporter
#10685 obsolete Virtualbox host process crashes or VM hangs when hibernating Windows guest mTi3Ad9vN
Description

On 4.1.16, 4.1.12, and possibly earlier version of Virtualbox, the virtualbox process crashes or the VM hangs while hibernating a Windows XP SP2 guest. The problem is easy to reproduce:

  1. Start Windows.
  2. Open control panel.
  3. Open hearts and select the two right-hand cards on the bottom hand. [This and the prior step are probably not necessary, but I don't have time to see whether that's so.]
  4. Open task manager and click the performance tab.
  5. Open notepad. Type random characters. Copy them and paste them back several times. Do this, multiplying the number of characters several times until memory usage in task manager reaches ~ 512MB.
  6. Attempt to hibernate Windows.
  7. Either the Virtualbox process underlying the VM will crash with a stack like the following (as determined by using VS 2008 as a JIT debugger to handle the crash) or the VM will hang at the "Preparing to Hibernate" screen.
    VBoxDD.dll!00000000067b4cdd()
    [Frames below may be incorrect and/or missing...]
    VBoxRT.dll!00000000003eaf0f
    VBoxRT.dll!000000000043e1ca
    msvcr80.dll!0000000074ca37d7
    msvcr80.dll!0000000074ca3894
    kernel32.dll!0000000076f5652d
    ntdll.dll!000000007708c521
    

The host OS is Win 7 Ultimate SP1 x64, and the guest OS is Win XP SP2.

Attached is a log from a hang (hiberhang.txt), and another from a crash (hibercrash.txt). Note the following lines from hibercrash.txt:

00:06:02.891 !!Assertion Failed!!
00:06:02.891 Expression: ReqType == ATA_AIO_RESET_ASSERTED || ReqType == ATA_AIO_RESET_CLEARED || ReqType == ATA_AIO_ABORT || pCtl->uAsyncIOState == ReqType
00:06:02.891 Location  : D:\tinderbox\win-4.1\src\VBox\Devices\Storage\DevATA.cpp(4883) ataAsyncIOLoop
00:06:02.891 I/O state inconsistent: state=0 request=2
00:08:51.497 TM: Not bothering to attempt catching up a 166 805 625 068 ns lag; new total: 166 805 625 068
00:09:05.219 Entering S5 power state (power down)
00:09:05.227 Changing the VM state from 'RUNNING' to 'POWERING_OFF'.
#10688 obsolete mount command doesn't report correctly shared folder. collette
Description

I use VirtualBox-4.1.6. My host OS is Windows XP 64, my guest os is mageia 2 64 bits.

I have several shared folders in my virtual machine. When I enter 'mount', the mount command lists all the mounted media.

For example, I've got a MYUSER shared folder pointing to c:\

Under linux, I mounted the shared folder:

mount -t vboxsf MYUSER /media/MYUSER

Now, if I enter 'mount', I've got:

none on /media/sf_MYUSER type vboxsf (rw,nodev,relatime)

It should report:

MYUSER on /media/sh_MYUSER type vboxsf (rw,nodec,relatime)

#10691 obsolete Enabling ACPI drastically cuts VM performance mTi3Ad9vN
Description

I am running compute-intensive tasks on Virtualbox VMs. I find that VMs with ACPI enabled (.vbox file contains <BIOS><ACPI enabled="true"/>...</BIOS>) take approximately 4 times as long to perform a given task as VMs with ACPI disabled.

Disabling ACPI (by stopping the affected VM, exiting the VirtualBox GUI, killing VBoxSVC, editing the VM's .vbox file, and restarting the VM) fixes the problem immediately.

Virtualbox is v.4.1.16.

Host OS is Win 7 Ultimate SP1.

Guest OS is Ubuntu 10.04 LTS.

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