It seems that the kexec_load syscall is not defined. Can you please check the configs of your running kernel once again? Thanks, Sameer On 10/24/2016 8:42 AM, Simon T wrote: > Hi, > > I'm trying to get kexec working on a cross-compiled arm64/aarch64 > system, using Linux kernel 4.4.23. I'm using kexec-tool's master > branch (commit e345e27417db00a9e754ca0ca14b2ec87d0552f7 from > https://git.kernel.org/cgit/linux/kernel/git/geoff/kexec-tools.git). I > initially tried using the patches for linux-kexec's kexec-13 branch > with manual massaging in some spots because kexec-13 is for 4.4.0 not > 4.4.23. Both tools and kernel appear to build fine, however when it > comes time to kexec, I encounter this message: "kexec_load failed: > Function not implemented" > > Searching through the patches, I don't find any reference to kexec_load itself. > > Should I be applying a different version of kexec-tools, or > linux-kexec patches, to my build? (I'm restricted to 4.4.23 as the > base kernel) > > Is there a way post compile to check if the kexec_load function is > implemented, aside from actually deploying the image and calling > kexec? I've run strings against the Image but it doesn't give an exact > match for kexec_load (see below). > > Anything else I should be looking at? > > # kexec -l /mnt/target/boot/vmlinux --initrd=/tmp/root.sfs > Modified cmdline:root=/dev/mmcblk0p2 > Unable to find /proc/device-tree/chosen/[linux,]stdout-path, printing > from purgatory is disabled > kexec_load failed: Function not implemented > entry = 0x8095f000 flags = 0xb70000 > nr_segments = 4 > segment[0].buf = 0x7fa0f64010 > segment[0].bufsz = 0x7fbc00 > segment[0].mem = 0x80080000 > segment[0].memsz = 0x8d0000 > segment[1].buf = 0x20cc0830 > segment[1].bufsz = 0xe515 > segment[1].mem = 0x80950000 > segment[1].memsz = 0xf000 > segment[2].buf = 0x20ccf840 > segment[2].bufsz = 0x6080 > segment[2].mem = 0x8095f000 > segment[2].memsz = 0x7000 > segment[3].buf = 0x7f9e843010 > segment[3].bufsz = 0x2720000 > segment[3].mem = 0xc0000000 > segment[3].memsz = 0x2720000 > > (I've also tried kexec -l with boot/Image instead of boot/vmlinux) > > $ grep -i kexec .config > CONFIG_KERNEL_KEXEC=y > CONFIG_PACKAGE_kexec-tools=y > CONFIG_KEXEC_TOOLS_TARGET_NAME="aarch64" > # CONFIG_KEXEC_TOOLS_kdump is not set > CONFIG_KEXEC_ZLIB=y > # CONFIG_KEXEC_LZMA is not set > > $ strings <build_dir>/arch/arm64/boot/Image | grep kexec_load > Wcompat_sys_kexec_load > Wsys_kexec_load > > Thanks! > > Simon > > _______________________________________________ > kexec mailing list > kexec at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec > -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
