Greetings, be83bbf80682 "mmap: introduce sane default mmap limits" introduced a problem with mapping /proc/vmcore if it is bigger than 2gb. This breaks s390 kernel zfcpdump. But it should be a general problem.
Please consider the following one-liner fix, if it makes sense. Vasily Gorbik (1): procfs: fix mmap() for /proc/vmcore fs/proc/inode.c | 1 + 1 file changed, 1 insertion(+) -- ⢀⡵⣤⡴⣅ 2.17.0 ⠏⢟⡛⣛⠏⠇ space invaders edition