On Thu, Jun 05, 2014 at 04:31:34PM +0800, Dave Young wrote: [..] > > + ret = kexec_file_load(kernel_fd, info.initrd_fd, info.command_line, > > + info.command_line_len, info.kexec_flags); > > Vivek, > > I tried your patch on my uefi test machine, but kexec load fails like below: > > [root at localhost ~]# kexec -l /boot/vmlinuz-3.15.0-rc8+ --use-kexec2-syscall > Could not find a free area of memory of 0xa000 bytes ... Hi Dave, I think this message is coming from kexec-tools from old loading path. I think somehow new path did not even kick in. I tried above and I got -EBADF as I did not pass initrd. Can you run gdb on kexec and see if you are getting to syscall or run strace. > > Another issue is that the syscall should allow load kernel only without initrd Agreed. Currently my code is not handling it. I am thinking of ways how to make passing initrd fd optional. > > and > cmdline since kernel can mount root and embed cmdline in itself. Passing command line is already optional. I tried it and kexec loaded successfully. Thanks Vivek
