To debug, I ran UML in gdb. It segfaulted once during finding the bottom limit, which is expected I guess.
On Mon, Feb 13, 2012 at 12:29 AM, Joakim ArfvidssonCan you please very this?
> Yes, the CPU is pegged while this is happening. I've left it for an hour
> with no results.
> I looked at that code and couldn't really see a good reason for it to block
> forever, except if the address space was so large it took a long time to get
Just add a printf()...
> The host kernel is 2.6.32-220.4.1.el6.i686 #1 SMP
> This is an Amazon EC2 instance, and I just found one hilarious workaround
> for this. If I remove the "user-data" from the instance, UML starts working
> again. User-data is a string that EC2 makes available to the running
> instance as the response of an http request to a fake ip.