Hi, Interesting to look also at: https://codesearch.debian.net/search?q=%2Fdev%2Fnul%5B%5El%5D&literal=0
This reminds me of my hunt for mistakes like 2&>1 in place of 2>&1: https://lists.debian.org/debian-qa/2023/02/msg00052.html both in some packaging scripts and in upstream sources. Many of them have since been resolved. Regards, Patrice On Mon, 26 Aug 2024 15:22:47 +1000 Russell Coker <russ...@coker.com.au> wrote: > Package: systemd > Version: 256.5-1 > Severity: minor > > https://current.workingdirectory.net/posts/2024/who-ate-my-ram/ > > The above blog post from Planet Debian shows an issue that isn't that uncommon > of running out of RAM due to writing to the wrong name under /dev (eg writing > to /dev/nul). > > While the script in question shouldn't do that it would be good to have the > result of doing so not involve making a server unusable. > > The command "mount -o remount,size=10m /dev" reduces the size and potential > wasted RAM to 10M which prevents this sort of thing from becoming a serious > problem and has no downsides that I can imagine. 10M should be more than > enough for the systems with the largest numbers of devices. > > I'm filing this bug report against systemd because it's related to boot > scripts and I can't think of a better target. > > -- Package-specific info: > > -- System Information: > Debian Release: trixie/sid > Architecture: amd64 (x86_64) > > Kernel: Linux 6.10.6-amd64 (SMP w/4 CPU threads; PREEMPT) > Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en > Shell: /bin/sh linked to /usr/bin/dash > Init: unable to detect > > Versions of packages systemd depends on: > ii libacl1 2.3.2-2 > ii libapparmor1 3.1.7-1+b1 > ii libaudit1 1:4.0.1-1 > ii libblkid1 2.40.2-7 > ii libc6 2.39-7 > ii libcap2 1:2.66-5 > ii libmount1 2.40.2-7 > ii libpam0g 1.5.3-7 > ii libseccomp2 2.5.5-1+b1 > ii libselinux1 3.7-1+b1 > ii libssl3t64 3.3.1-7 > ii libsystemd-shared 256.5-1 > ii libsystemd0 256.5-1 > ii mount 2.40.2-7 > > Versions of packages systemd recommends: > ii dbus [default-dbus-system-bus] 1.14.10-4+b1 > ii libzstd1 1.5.6+dfsg-1 > pn linux-sysctl-defaults <none> > pn systemd-cryptsetup <none> > ii systemd-timesyncd [time-daemon] 256.5-1 > > Versions of packages systemd suggests: > ii libcryptsetup12 2:2.7.4-1 > ii libgcrypt20 1.11.0-6 > ii libidn2-0 2.3.7-2 > ii liblz4-1 1.9.4-3
