[SOLVED] Debian limits /tmp size to 1.1 GB

Well this is odd. After an update (Debian Sid), my system is limiting my /tmp directory to 1.1 GB.

/tmp is on the root dir. Not as a different partition.

This my /etc/default/tmpfs

# Configuration for tmpfs filesystems mounted in early boot, before
# filesystems from /etc/fstab are mounted.  For information about
# these variables see the tmpfs(5) manual page.

# /run is always mounted as a tmpfs on systems which support tmpfs
# mounts.

# mount /run/lock as a tmpfs (separately from /run).  Defaults to yes;
# set to no to disable (/run/lock will then be part of the /run tmpfs,
# if available).
#RAMLOCK=yes

# mount /run/shm as a tmpfs (separately from /run).  Defaults to yes;
# set to no to disable (/run/shm will then be part of the /run tmpfs,
# if available).
#RAMSHM=yes

# mount /tmp as a tmpfs.  Defaults to no; set to yes to enable (/tmp
# will be part of the root filesystem if disabled).  /tmp may also be
# configured to be a separate mount in /etc/fstab.
#RAMTMP=no

# Size limits.  Please see tmpfs(5) for details on how to configure
# tmpfs size limits.
#TMPFS_SIZE=20%VM
#RUN_SIZE=10%
#LOCK_SIZE=5242880 # 5MiB
#SHM_SIZE=
#TMP_SIZE=

# Mount tmpfs on /tmp if there is less than the limit size (in kiB) on
# the root filesystem (overriding RAMTMP).
#TMP_OVERFLOW_LIMIT=1024

/etc/fstab

# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>

/dev/sr0     /media/cdrom0   udf,iso9660 user,noauto     0       0
/dev/fd0        /media/floppy0  auto  rw,user,noauto,sync   0       0

#/dev/sdA------------------------------------------------------------------------------
proc            /proc           proc    defaults        0       0
/dev/sda1       /               ext4    defaults,atime,errors=remount-ro 0       1
/dev/sda2       none            swap    sw              0       0
/dev/sda3      /media/Musica        ext4    defaults,atime,errors=remount-ro    0   2 

#RED-LAPTOP----------------------------------------------------------------------------
/home    /.export/home   none    bind  0  0
/tmp    /.export/tmp100   none    bind  0  0

Don't know where to look.

I noticed the package initscripts was updated, but I went back to its previous version with no success. I don't know if this is supposed to be a bug, or something I'm missing.

Any ideas?

Appreciate the help.

Well first off it would be nice to know exactly how you have this installed.

Also what it is installed on.

Also what indicates that you are limited to 1.1gigs for /tmp.

What is the size of your sda1 partition?

How much free space does sda1 currently have?

EDIT;
How much ram do you have?

Yeah, sorry I wasn't specific. It was late at night, and I was searching and trying stuff for a while with no success.

Root partition has like 20 GB of free space. So there is something that's limiting the /tmp dir. It's clearly indicated by my file manager.

I supposed it was related to /etc/default/tmpfs, since I had had this problem in the past after a system upgrade.

This is aptitude's log, which show the packages that were upgraded:

arj:i386 3.10.22-12 -> 3.10.22-13 binutils:i386 2.25-5 -> 2.25-6 bsdutils:i386 1:2.25.2-5 -> 1:2.25.2-6 bzip2:i386 1.0.6-7+b2 -> 1.0.6-7+b3 cabextract:i386 1.5-1 -> 1.6-1 caps:i386 0.9.23-1 -> 0.9.24-1 chromium:i386 41.0.2272.76-2 -> 41.0.2272.118-1 chromium-inspector:i386 41.0.2272.76-2 -> 41.0.2272.118-1 chromium-l10n:i386 41.0.2272.76-2 -> 41.0.2272.118-1 coreutils:i386 8.23-3 -> 8.23-4 cups-browsed:i386 1.0.61-4 -> 1.0.61-5 cups-filters:i386 1.0.61-4 -> 1.0.61-5 cups-filters-core-drivers:i386 1.0.61-4 -> 1.0.61-5 cups-pdf:i386 2.6.1-16 -> 2.6.1-17 debconf:i386 1.5.55 -> 1.5.56 debconf-i18n:i386 1.5.55 -> 1.5.56 debian-keyring:i386 2015.03.04 -> 2015.03.30 ffmpeg:i386 7:2.5.4-1 -> 7:2.6.1-1 file:i386 1:5.22+15-1 -> 1:5.22+15-2 geoip-database:i386 20150209-1 -> 20150317-1 gnumeric:i386 1.12.18-1 -> 1.12.18-2 gnumeric-common:i386 1.12.18-1 -> 1.12.18-2 grub-common:i386 2.02~beta2-21 -> 2.02~beta2-22 grub-pc:i386 2.02~beta2-21 -> 2.02~beta2-22 grub-pc-bin:i386 2.02~beta2-21 -> 2.02~beta2-22 grub-rescue-pc:i386 2.02~beta2-21 -> 2.02~beta2-22 grub2-common:i386 2.02~beta2-21 -> 2.02~beta2-22 gstreamer1.0-plugins-ugly:i386 1.4.4-2 -> 1.4.4-2+b1 icedove:i386 31.5.0-1 -> 31.6.0-1 icedtea-7-jre-jamvm:i386 7u75-2.5.4-2 -> 7u75-2.5.4-3 icedtea-netx:i386 1.5.2-1 -> 1.5.2-1.1 icedtea-netx-common:i386 1.5.2-1 -> 1.5.2-1.1 iceweasel:i386 31.5.0esr-1 -> 31.6.0esr-1 iceweasel-l10n-es-ar:i386 1:31.5.0esr-1 -> 1:31.6.0esr-1 icu-devtools:i386 52.1-7.1 -> 52.1-8 ifupdown:i386 0.7.52 -> 0.7.53.1 initscripts:i386 2.88dsf-58 -> 2.88dsf-59 keyboard-configuration:i386 1.118 -> 1.120 libav-tools:i386 6:11.2-1 -> 6:11.3-1 libavcodec-ffmpeg56:i386 7:2.5.4-1 -> 7:2.6.1-1 libavcodec56:i386 6:11.2-1 -> 6:11.3-1 libavdevice-ffmpeg56:i386 7:2.5.4-1 -> 7:2.6.1-1 libavdevice55:i386 6:11.2-1 -> 6:11.3-1 libavfilter-ffmpeg5:i386 7:2.5.4-1 -> 7:2.6.1-1 libavfilter5:i386 6:11.2-1 -> 6:11.3-1 libavformat-ffmpeg56:i386 7:2.5.4-1 -> 7:2.6.1-1 libavformat56:i386 6:11.2-1 -> 6:11.3-1 libavresample-ffmpeg2:i386 7:2.5.4-1 -> 7:2.6.1-1 libavresample2:i386 6:11.2-1 -> 6:11.3-1 libavutil-ffmpeg54:i386 7:2.5.4-1 -> 7:2.6.1-1 libavutil54:i386 6:11.2-1 -> 6:11.3-1 libbatik-java:i386 1.7+dfsg-4 -> 1.7+dfsg-5 libblkid1:i386 2.25.2-5 -> 2.25.2-6 libbz2-1.0:i386 1.0.6-7+b2 -> 1.0.6-7+b3 libc-bin:i386 2.19-15 -> 2.19-17 libc-dev-bin:i386 2.19-15 -> 2.19-17 libc6:i386 2.19-15 -> 2.19-17 libc6-dev:i386 2.19-15 -> 2.19-17 libc6-i686:i386 2.19-15 -> 2.19-17 libcap2:i386 1:2.24-6 -> 1:2.24-8 libcap2-bin:i386 1:2.24-6 -> 1:2.24-8 libcupsfilters1:i386 1.0.61-4 -> 1.0.61-5 libfontembed1:i386 1.0.61-4 -> 1.0.61-5 libfreetype6:i386 2.5.2-3 -> 2.5.2-4 libfreetype6-dev:i386 2.5.2-3 -> 2.5.2-4 libgssapi-krb5-2:i386 1.12.1+dfsg-18 -> 1.12.1+dfsg-19 libgudev-1.0-0:i386 215-12 -> 215-14 libgusb2:i386 0.2.2-1 -> 0.2.4-1 libicu-dev:i386 52.1-7.1 -> 52.1-8 libicu52:i386 52.1-7.1 -> 52.1-8 libjavascriptcoregtk-1.0-0:i386 2.4.8-1 -> 2.4.8-2 libjavascriptcoregtk-3.0-0:i386 2.4.8-1 -> 2.4.8-2 libk5crypto3:i386 1.12.1+dfsg-18 -> 1.12.1+dfsg-19 libkrb5-3:i386 1.12.1+dfsg-18 -> 1.12.1+dfsg-19 libkrb5support0:i386 1.12.1+dfsg-18 -> 1.12.1+dfsg-19 libmagic1:i386 1:5.22+15-1 -> 1:5.22+15-2 libmount1:i386 2.25.2-5 -> 2.25.2-6 libmpeg2-4:i386 0.5.1-6 -> 0.5.1-7 libnspr4:i386 2:4.10.7-1 -> 2:4.10.8-1 libnspr4-0d:i386 2:4.10.7-1 -> 2:4.10.8-1 libpam-systemd:i386 215-12 -> 215-14 libparted-fs-resize0:i386 3.2-6 -> 3.2-7 libparted2:i386 3.2-6 -> 3.2-7 libperl5.20:i386 5.20.2-2 -> 5.20.2-3 libpostproc-ffmpeg53:i386 7:2.5.4-1 -> 7:2.6.1-1 libpython-stdlib:i386 2.7.8-4 -> 2.7.9-1 libqt5webkit5:i386 5.3.2+dfsg-3 -> 5.3.2+dfsg-4 librtmp1:i386 2.4+20131018.git79459a2-5 -> 2.4+20150115.gita107cef-1 libsmartcols1:i386 2.25.2-5 -> 2.25.2-6 libssh2-1:i386 1.4.3-4 -> 1.5.0-2+b1 libssl1.0.0:i386 1.0.1k-1 -> 1.0.1k-3 libsvn1:i386 1.8.10-5 -> 1.8.10-6 libswresample-ffmpeg1:i386 7:2.5.4-1 -> 7:2.6.1-1 libswscale-ffmpeg3:i386 7:2.5.4-1 -> 7:2.6.1-1 libswscale3:i386 6:11.2-1 -> 6:11.3-1 libsystemd0:i386 215-12 -> 215-14 libtasn1-6:i386 4.2-2 -> 4.2-3 libtcl8.6:i386 8.6.2+dfsg-1 -> 8.6.2+dfsg-2 libtiff-tools:i386 4.0.3-12.1 -> 4.0.3-12.3 libtiff5:i386 4.0.3-12.1 -> 4.0.3-12.3 libudev1:i386 215-12 -> 215-14 libupower-glib3:i386 0.99.1-3.1 -> 0.99.1-3.2 libuuid1:i386 2.25.2-5 -> 2.25.2-6 libwebkitgtk-1.0-0:i386 2.4.8-1 -> 2.4.8-2 libwebkitgtk-1.0-common:i386 2.4.8-1 -> 2.4.8-2 libwebkitgtk-3.0-0:i386 2.4.8-1 -> 2.4.8-2 libwebkitgtk-3.0-common:i386 2.4.8-1 -> 2.4.8-2 libwebp5:i386 0.4.1-1.2+b2 -> 0.4.3-1 libwebpdemux1:i386 0.4.1-1.2+b2 -> 0.4.3-1 libwebpmux1:i386 0.4.1-1.2+b2 -> 0.4.3-1 libxfont1:i386 1:1.4.99.901-1+b3 -> 1:1.5.1-1 locales:i386 2.19-15 -> 2.19-17 melt:i386 0.9.2+git20141027-1 -> 0.9.6-1 mount:i386 2.25.2-5 -> 2.25.2-6 multiarch-support:i386 2.19-15 -> 2.19-17 murrine-themes:i386 0.98.8 -> 0.98.9 openjdk-7-jre:i386 7u75-2.5.4-2 -> 7u75-2.5.4-3 openjdk-7-jre-headless:i386 7u75-2.5.4-2 -> 7u75-2.5.4-3 openssh-client:i386 1:6.7p1-3 -> 1:6.7p1-5 openssl:i386 1.0.1k-1 -> 1.0.1k-3 parted:i386 3.2-6 -> 3.2-7 perl:i386 5.20.2-2 -> 5.20.2-3 perl-base:i386 5.20.2-2 -> 5.20.2-3 perl-modules:i386 5.20.2-2 -> 5.20.2-3 printer-driver-cups-pdf:i386 2.6.1-16 -> 2.6.1-17 python:i386 2.7.8-4 -> 2.7.9-1 python-debian:i386 0.1.25 -> 0.1.26 python-imaging:i386 2.6.1-1 -> 2.6.1-2 python-minimal:i386 2.7.8-4 -> 2.7.9-1 python-pil:i386 2.6.1-1+b1 -> 2.6.1-2 qt-faststart:i386 7:2.5.4-1 -> 7:2.6.1-1 rtmpdump:i386 2.4+20131018.git79459a2-5 -> 2.4+20150115.gita107cef-1 ssl-cert:i386 1.0.35 -> 1.0.36 subversion:i386 1.8.10-5 -> 1.8.10-6 systemd:i386 215-12 -> 215-14 systemd-sysv:i386 215-12 -> 215-14 sysv-rc:i386 2.88dsf-58 -> 2.88dsf-59 sysvinit-utils:i386 2.88dsf-58 -> 2.88dsf-59 tcl8.6:i386 8.6.2+dfsg-1 -> 8.6.2+dfsg-2 tzdata:i386 2015a-1 -> 2015b-1 tzdata-java:i386 2015a-1 -> 2015b-1 udev:i386 215-12 -> 215-14 unattended-upgrades:i386 0.83.6 -> 0.83.7 unrar:i386 1:5.2.5-1 -> 1:5.2.7-0.1 upower:i386 0.99.1-3.1 -> 0.99.1-3.2 util-linux:i386 2.25.2-5 -> 2.25.2-6 vim-common:i386 2:7.4.488-5 -> 2:7.4.488-7 vim-tiny:i386 2:7.4.488-5 -> 2:7.4.488-7 virtualbox:i386 4.3.18-dfsg-2 -> 4.3.18-dfsg-3 virtualbox-dkms:i386 4.3.18-dfsg-2 -> 4.3.18-dfsg-3 virtualbox-qt:i386 4.3.18-dfsg-2 -> 4.3.18-dfsg-3 wget:i386 1.16-3 -> 1.16.3-2 xsane:i386 0.999-1 -> 0.999-2 xsane-common:i386 0.999-1 -> 0.999-2 xserver-common:i386 2:1.16.2.901-1 -> 2:1.16.4-1 xserver-xephyr:i386 2:1.16.2.901-1 -> 2:1.16.4-1 xserver-xorg-core:i386 2:1.16.2.901-1 -> 2:1.16.4-1 ===============================================================================

Remember, this "bug" began to happen after this upgrade.

I don't know if this is related to systemd. I'll try to downgrade, and see what happens...

My RAM is 2 GB, as well as my swap.


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EDIT

I solved this with the following command:

# systemctl mask tmp.mount

I'd like to know what this does, exactly, before marking this thread as "SOLVED". I got the idea from Arch Linux wiki, but I'm not sure if this the correct (or "clean") way to do it.

Systems using systemd usually are configured to automatically mount /tmp as tmpfs in RAM. By default, tmpfs limits mounts to half of physical RAM size. To do this systemd internally creates a tmp.mount file (as it does for all other mountpoints, even those configured in /etc/fstab) and uses that to mount /tmp. The systemctl command you used masks the tmp.mount file (read: it tells systemd not to use that file), which means that /tmp simply is not mounted to anything and resides on the /-filesystem.
This is indeed the correct way to do it, if you want to have /tmp on the /-filesystem.

Ok, crystal clear.

Thank you very much

One last question though, how do you set the size? (in case you want to do that)

You can either write your own tmp.mount file, put it in /etc/systemd/system and enable it using systemctl, or (recommended by systemd developers) add a mountpoint in your /etc/fstab for /tmp on tmpfs and specify the desired size (either a percentage of RAM or an absolute size) using the size= mountoption.

Great. Thanks again!