Bug#1114920: systemd: tmp.mount isn't limiting the size and system crash if tmp is full

[Luca Boccassi]

Control: tags -1 unreproducible
Control: close -1

On Thu, 11 Sep 2025 17:44:39 +0200 Matthieu Castet
<castet.matthieu at free.fr> wrote:
> Package: systemd
> Version: 257.8-1~deb13u1
> Severity: normal
> X-Debbugs-Cc: castet.matthieu at free.fr
> 
> Dear Maintainer,
> 
> findmnt --target /tmp
> TARGET SOURCE FSTYPE OPTIONS
> /tmp   tmpfs  tmpfs  rw,nosuid,nodev,nr_inodes=1048576,inode64
> 
> There is no limit is size in tmpfs.

There is, it's 50%, the kernel won't display it as it's the default for
tmpfs filesystems, but it's there nonetheless.