On Fri, Jun 6, 2014 at 11:33 AM, Glen Barber <gjb at freebsd.org> wrote: > #4 0xffffffff8092fa39 in fork1 (td=0xfffff813ae7f4920, flags=20, pages=Cannot access memory at address 0x4 > ) > at /usr/src/sys/kern/kern_fork.c:268 This looks like a suspicious piece of code. Could something be causing the kernel to go into an infinite loop there?