On 9/3/19 8:50 AM, Andreas Smas wrote: > Hi, > > For me, kernels built including this commit > b059f801a937 (x86/purgatory: Use CFLAGS_REMOVE rather than reset > KBUILD_CFLAGS) > > results in kexec() failing to load the kernel: > > kexec: Undefined symbol: __stack_chk_fail > kexec-bzImage64: Loading purgatory failed > > Can be seen: > > $ readelf -a arch/x86/purgatory/purgatory.ro | grep UND > 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND > 51: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND __stack_chk_fail > > Using: gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1) > > Adding -ffreestanding or -fno-stack-protector to ccflags-y in > arch/x86/purgatory/Makefile > fixes the problem. Not sure which would be preferred. >
Hi, Do you have a kernel .config file that causes this? I can't seem to reproduce it. Thanks. -- ~Randy
