id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
11395	virtualbox-4.2_4.2.6-82870 64bit crashes host (Ubuntu 12.10 64bit) when starting guest	jbeiter		"Ubuntu 12.10 64bit

Kernel: 3.5.0-17-generic

Virtualbox: virtualbox-4.2_4.2.6-82870~Ubuntu~quantal_amd64.deb

CPU: Intel Core 2 Quad Q9550 Yorkfield 2.83GHz LGA 775 95W Quad-Core Desktop Processor BX80569Q9550

Guest: Win 7 Home Premium 64bit

Installed dependancies and deb package for virtualbox, created new guest ""Windows 7 64bit"" with defaults except for 100G disk (thin) and 1G RAM (have 4)  No extended graphics selected.

When I try to run the VM, it prompts to confirm to select the dvd drive. Once I select it, the system panics and dumps registers to the console and freezes. The fault appears to be in libc-2.15.30 (based on the screen vomit, I'm not a programmer)

It says it is dumping core but I haven't been able to locate a core file.  

A couple of other folks have reported these same symptoms (also with 64bit ubuntu 12.10) on the ubuntu forums under the virtualization forum.
"	defect	closed	other	VirtualBox 4.2.6	fixed	ubuntu 12.10 4.2.6 64bit		other	Linux