[Bug 196405] mkdir mishandles st_nlink in ext4 directory with 64997 subdirectories

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=196405

--- Comment #2 from michelbach94@gmail.com ---
Thank you, Ted.

Is it necessary for it to "break" (quotes because 1 seems to be a kind-of
wildcard) at such a low and weird value?

This behavior doesn't occur with ext4 ram disks. Run the same command, possibly
with an even higher number, but within an ext4 ram disk, created via

    $ sudo mount -t ramfs -o size=4G ext4 <path>

Example output:

    $ ll
    total 4
    drwxr-xr-x      3 christoph root         0 Jul 18 22:59 ./
    drwxrwxrwt     18 root      root      4096 Jul 18 23:00 ../
    drwxrwxr-x 446639 christoph christoph    0 Jul 18 23:05 d/

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