VirtualBox

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Ticket Resolution Summary Owner Reporter
#11709 fixed VirtualBox Guest Additions 4.2.12 breaks Ubuntu 12.04 guest => Fixed in SVN David Anderson
Description

I upgraded to VirtualBox version 4.2.12 on my Windows 7 host and the guest additions version 4.2.12 onto my Ubuntu 12.04 guest. Having installed the guest additions, the guest system became unusable with an error about the graphics configuration. It offered to go into low graphics mode but this didn't work either. All I could get was a command prompt. I rolled back to verion 4.2.10 with the following steps and now the system is fine again. Before the roll-back, I tried reinstalling the guest additions but it didn't help.

Rollback procedure (for the benefit of others with the same problem)

  1. Uninstalled the guest additions in the Ubuntu guest from the command prompt

cd /opt/VBoxGuestAdditions-4.2.12

sudo ./uninstall.sh

  1. Shutdown guest (actually I think it wouldn't shut down and I had to power it off)
  1. Uninstalled VirtualBox in Windows (Control Panel, Uninstall a program, Oracle VM VirtualBox 4.2.12).
  1. Reinstalled VirtualBox 4.2.10 in Windows 7 host (downloaded from VirtualBox web downloads section, previous versions link).
  1. Reinstalled guest additions version 4.2.10 in Ubuntu 12.04 guest.
#15724 fixed VirtualBox crashing - Ubuntu host, Win7 guest David29
Description

I am running host OS: Ubuntu 16.04, Kernel 4.7.0-040700 VirtualBox Version: 5.1.2 r108956 Guest OS: Windows 7 Pro

Everything seems to work fine, except that maybe once every day or two the guest will freeze (meaning the screen goes gray like if you pause the guest OS) and then it force-closes itself and brings up the "VirtualBox crashed, do you want to report it" screen. I'm able to restart the guest OS immediately after, and everything works fine.

This showed up in the system log at the time of the last crash:

Aug  1 11:04:23 user-XPS-13-9350 kernel: [107485.192040] show_signal_msg: 36 callbacks suppressed
Aug  1 11:04:23 user-XPS-13-9350 kernel: [107485.192044] EMT-1[11755]: segfault at 10 ip 00007fb07467dd19 sp 00007fb0c422ebc0 error 4 in VBoxDD.so[7fb074567000+289000]
Aug  1 11:05:06 user-XPS-13-9350 kernel: [107528.142940] vboxdrv: ffffffffc0b79020 VMMR0.r0
Aug  1 11:05:07 user-XPS-13-9350 kernel: [107528.429457] vboxdrv: ffffffffc067c020 VBoxDDR0.r0
Aug  1 11:05:07 user-XPS-13-9350 kernel: [107528.551343] vboxdrv: ffffffffc0005020 VBoxEhciR0.r0

I'm attaching the crash file, the vbox log file, and the vm .vbox file.

#11272 obsolete VBox failed to use seamless mode after resume from save David290
Description

VBox failed to use seamless mode after resume from save

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