/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/ is in linux-headers-3.13.0-68-lowlatency 3.13.0-68.111.
This file is owned by root:root, with mode 0o755.
..
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/Kbuild
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/Kconfig
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/Kconfig.cpu
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/Kconfig.debug
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/Makefile
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/Makefile.um
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/Makefile_32.cpu
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/boot
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/crypto
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/ia32
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/asm
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/.syscalls_32.h.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/.syscalls_64.h.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/.unistd_32_ia32.h.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/.unistd_64_x32.h.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/clkdev.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/syscalls_32.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/syscalls_64.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/unistd_32_ia32.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/asm/unistd_64_x32.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/asm/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/asm/.unistd_32.h.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/asm/.unistd_64.h.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/asm/.unistd_x32.h.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/asm/unistd_32.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/asm/unistd_64.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/generated/uapi/asm/unistd_x32.h
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/include/uapi
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/.asm-offsets.s.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/Makefile
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/acpi
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/apic
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/asm-offsets.s
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/cpu
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kernel/kprobes
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/kvm
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/lguest
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/lib
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/math-emu
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/mm
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/net
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/oprofile
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/pci
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/platform
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/power
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/realmode
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/syscalls/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/syscalls/Makefile
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/syscalls/syscallhdr.sh
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/syscalls/syscalltbl.sh
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/.relocs.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/.relocs_32.o.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/.relocs_64.o.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/.relocs_common.o.cmd
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/Makefile
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/relocs
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/relocs_32.o
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/relocs_64.o
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/tools/relocs_common.o
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/um
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/vdso
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/video
/usr/src/linux-headers-3.13.0-68-lowlatency/arch/x86/xen