New comment by ericonr on void-packages repository https://github.com/void-linux/void-packages/issues/28127#issuecomment-766483693 Comment: That's just GDB saying it can't find the source for musl's vfprintf. So yes, it is the missing file. The actual error is a segfault. @anon-lestat no one was telling you to do that; we were just gathering information on what environment is being used that breaks apparmor. Void does still support multiple LTS kernels.