On Fri, 21 Oct, at 04:41:29PM, Matt Fleming wrote: > > FYI, I've been able to reproduce some crash when using your EFI memory > map layout under Qemu and forcing the ESRT driver to reserve the space. Nope, that was a bug in my hack. I can't get Qemu to crash while using your memory map layout. Any chance you can insert "while(1)" loops into the EFI boot paths for a kernel that is known to reboot or trigger a triple fault in kernels that hang, so that we can narrow in on the issue. See, http://www.codeblueprint.co.uk/2015/04/early-x86-linux-boot-debug-tricks.html -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html