[systemd-bugs] [Bug 75566] RFE: make /run/user/$UID tmpfs of its own

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75566

--- Comment #5 from Lennart Poettering <lennart at poettering.net> ---
(In reply to comment #4)
> I don't think that being writable only by root makes it completely safe.
> Bugs don't really depend on uid, and a buggy software (running as root for
> perfectly valid reasons) could crash an entire machine, while this wouldn't
> really be the case if only on disk filesystems are filled up.

The mount has a default size limit anyway, and it is at half the installed RAM.
That should be pretty OK as safety measure.

We are not arguing here whether there should be a limit on /sys/fs/cgroup or
not, because there always and unconditionally is. We are arguing what it should
be. And I see little reason to change the kernel default here.

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