I need to setup a samba server which can't accept files bigger than 200MB. The right way is add rc_ulimit="-f 204800" in /etc/conf.d/samba The result is that I can't upload file bigger that 100MB (the half of what I declared) So, a workaround for me is set 409600 so the half is 204800 but I think it is very odd. Also, if I'm doing: ulimit -f 204800 ; /etc/init.d/samba start it works as expected and the limit is 200MB. Portage 2.2.18 (python 2.7.9-final-0, default/linux/amd64/13.0, gcc-4.8.4, glibc-2.20-r2, 3.14.37-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-3.14.37-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E5310_@_1.60GHz-with-gentoo-2.2 KiB Mem: 8173800 total, 5407400 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Mon, 04 May 2015 06:00:01 +0000 sh bash 4.2_p53 ld GNU ld (Gentoo 2.24 p1.4) 2.24 app-shells/bash: 4.2_p53::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.9-r1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.13.11::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.69::gentoo sys-devel/automake: 1.13.4::gentoo sys-devel/binutils: 2.24-r3::gentoo sys-devel/gcc: 4.8.4::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 3.18::gentoo (virtual/os-headers) sys-libs/glibc: 2.20-r2::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://192.168.0.22/gentoo-portage priority: -1000 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=x86-64 -fno-stack-protector" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -march=x86-64 -fno-stack-protector" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps y -b" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs buildpkg collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://192.168.0.22/ http://distfiles.gentoo.org http://gentoo.wheel.sk/ http://mirror.netcologne.de/gentoo/ http://mirrors.linuxant.fr/distfiles.gentoo.org/" LANG="it_IT.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-z,lazy" MAKEOPTS="-j4" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/tmp/" USE="acl amd64 berkdb bzip2 cli cracklib crypt cxx dri fortran gdbm iconv mmx mmxext modules multilib ncurses nptl openmp pam pcre readline session sse sse2 ssl tcpd unicode zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" CPU_FLAGS_X86="mmx mmxext sse sse2" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_GB" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" USE_PYTHON="2.7" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= sys-apps/openrc-0.13.11::gentoo was built with the following: USE="ncurses netifrc pam unicode -debug -newnet (-prefix) (-selinux) -static-libs -tools" ABI_X86="64"
@base-system: Can you advise me on this one? Thanks, William
@samba: Can you also take a look and advise me? Thanks, William
I don't think the problem originates in openrc. runscript.sh, which handles the rc_ulimit variable, simply calls the shell primitive It's also not limited to samba, I added rc_ulimit='-f 16' (so a 16KB limit) to fakeidentd, which is an extremely simple program (~500 lines of C, does nothing to limits itself); and here is the result: # grep file /proc/`pidof fakeidentd`/limits Max file size 8192 8192 bytes Max core file size 0 unlimited bytes Max open files 1024 4096 files Max file locks unlimited unlimited lock My bet is on bash or libc, but I need to confirm this still. The help for bash describes how most limits are actually 1k multiples (except for one that is a 512-byte multiple, and some that are singular).
Solved it! We're in POSIX bash mode, and block size is defined as 512-byte, not 1K. The help output and manpage for Bash don't explicitly say, but they do reference this document, that covers it: http://tiswww.case.edu/php/chet/bash/POSIX 48. The `ulimit' builtin uses a block size of 512 bytes for the `-c' and `-f' options. Since OpenRC is used with dash and other posix-correct shells, I think the actions taken should be: 1. Amend the bash help & manpage to mention the blocksize variation on mode. 2. Add a comment to rc.conf about it as well.
In OpenRC, I added a note about this in commit bbabf54 which will be part of OpenRC-0.17.
All, this has been documented in OpenRC-0.16.4, so I am assigning to base-system since the other suggestion Robin made is to modify the bash help. Thanks, William
sent the patch upstream: https://lists.gnu.org/archive/html/bug-bash/2015-06/msg00020.html
