Comment # 2 on bug 1176095 from Tom de Vries

Reproduced using pahole master:
...
$ ./build/pahole -C  mem_cgroup
~/pahole/5.3.18-24.9-default/usr/lib/debug/boot/vmlinux-5.3.18-24.9-default.debug
  ...
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7f65d92 in tag__is_pointer (tag=0x0) at
/home/vries/dwarves/src/dwarves.h:446
446             return tag->tag == DW_TAG_pointer_type;
...