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SubjectRe: [PATCH] mm: disable `vm.max_map_count' sysctl limit
> 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

In particular readdir on /proc/*/map_files .

I'm saying you can not simply remove this sysctl.

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