Bug#987316: initscripts: tmpfs has wrong size
Thorsten Glaser
t.glaser at tarent.de
Wed Apr 21 16:56:50 BST 2021
On Wed, 21 Apr 2021, Roger Lynn wrote:
> tmpfs(5) says:
> TMPFS_SIZE
> Maximum size for all tmpfs filesystems if no specific size is
> provided. The default is 20%VM (20% of virtual memory, includ‐
> ing swap space). If no value is provided here, the kernel de‐
> fault (50% RAM) will be used.
>
> I find this confusing, because the default in /etc/defaults/tmpfs is:
> #TMPFS_SIZE=20%VM
I found it confusing as well, which is why I tracked this down.
To “provide no value” you have to actually do…
TMPFS_SIZE=
… in /etc/defaults/tmpfs because the commented-out value is default.
Perhaps rewording tmpfs(5) to say “If this is explicitly set to the
empty string, the kernel default…” is in order?
HTH&HAND,
//mirabilos
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