> vm.max_map_count I always thought it is some kind of algorithmic complexity limiter and kernel memory limiter. VMAs are under SLAB_ACCOUNT nowadays but ->mmap list stays:
$ chgrep -e 'for.*vma = vma->vm_next' | wc -l
41
In particular readdir on /proc/*/map_files .
I'm saying you can not simply remove this sysctl.
