Hello, I am using the i.mx6 to test a networking example that function in QEMU. To load the application, I am using the u-boot that comes pre-compiled on the micro-sd. I am able to dhcp to my tftpserver and grab the seL4 image, and when I run the "go 20000000" command, I get the following: ## Starting application at 0x20000000 ... AP Kernel returned back to the elf-loader. abort() called. Looking through the code, that error is in non_boot_main, yet that function call is wrapped by #ifdef CONFIG_SMP_ARM_MPCORE Which is undefined. That makes me think that the main() in boot.c is not being accessed and the elfloader isn't being run properly. Is this a u-boot issue, or is it that way I have everything setup? Is it a requirement to use the pre-compiled u-boot binary for the i.mx6? Thanks, Chris Guikema