For kernel version 3.10.0-1160.71.1.1chaos.ch6.x86_64

gcc/4.8-redhat good
gcc/4.9.3 error
gcc/6.1.0 error
gcc/7.1.0 error
gcc/7.3.0 good
gcc/8.1.0 good
gcc/8.3.1 good
gcc/9.3.1 warnings
gcc/10.2.1warnings
gcc 11.2.0-19ubuntu1 good

Eventually I'd like to get a pile of VMs set up to test lots of kernel and compiler versions, and fix up what we can in the code, then document what can't be fixed.