Package: initscripts
Version: 2.88dsf-12
Severity: normal
Tags: patch
Hi,
systemd is a new init systemd, which makes use of cgroups to track
running processes.
The cgroupfs is mounted below /sys/fs/cgroup as shown below:
$ mount | grep cgroup
tmpfs on /sys/fs/cgroup type tmpfs (rw,noexec,nosuid,nodev,relatime,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup
(rw,noexec,nosuid,nodev,relatime,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/cpuset type cgroup
(rw,noexec,nosuid,nodev,relatime,cpuset)
cgroup on /sys/fs/cgroup/ns type cgroup (rw,noexec,nosuid,nodev,relatime,ns)
cgroup on /sys/fs/cgroup/cpu type cgroup (rw,noexec,nosuid,nodev,relatime,cpu)
cgroup on /sys/fs/cgroup/cpuacct type cgroup
(rw,noexec,nosuid,nodev,relatime,cpuacct)
cgroup on /sys/fs/cgroup/devices type cgroup
(rw,noexec,nosuid,nodev,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup
(rw,noexec,nosuid,nodev,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls type cgroup
(rw,noexec,nosuid,nodev,relatime,net_cls)
/etc/init.d/umountfs tries to unmount those file systems on shutdown. As
systemd still uses them, it fails, which results in error messags during
reboot/shutdown.
I discussed this with Tollef (Debian systemd maintainer) and Kay Sievers
(udev and systemd upstream developer).
We came to the conclusion that virtual/kernel file systems
should not be unmounted at all, as there is no good reason to do so.
The attached patch does just that. It skips all mount points below
/sys/*
I've been using this patch for some time now without any problems.
Please consider applying it in the next upload.
Thanks,
Michael
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.32-5-686 (SMP w/1 CPU core)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages initscripts depends on:
ii coreutils 8.5-1 GNU core utilities
ii debianutils 3.4 Miscellaneous utilities specific t
ii libc6 2.11.2-6 Embedded GNU C Library: Shared lib
ii lsb-base 3.2-23.1 Linux Standard Base 3.2 init scrip
ii mount 2.17.2-3.1 Tools for mounting and manipulatin
ii sysv-rc 2.88dsf-12 System-V-like runlevel change mech
ii sysvinit-utils 2.88dsf-12 System-V-like utilities
Versions of packages initscripts recommends:
ii e2fsprogs 1.41.12-2 ext2/ext3/ext4 file system utiliti
ii psmisc 22.13-1 utilities that use the proc file s
initscripts suggests no packages.
-- Configuration Files:
/etc/init.d/reboot changed [not included]
/etc/init.d/sendsigs changed [not included]
/etc/init.d/umountfs changed [not included]
-- no debconf information
diff --git a/debian/src/initscripts/etc/init.d/umountfs b/debian/src/initscripts/etc/init.d/umountfs
index 24892d1..7df5e3f 100755
--- a/debian/src/initscripts/etc/init.d/umountfs
+++ b/debian/src/initscripts/etc/init.d/umountfs
@@ -27,7 +27,7 @@ do_stop () {
do
echo "$PROTECTED_MOUNTS" | grep -qs "^$DEV $MTPT " && continue
case "$MTPT" in
- /|/proc|/dev|/.dev|/dev/pts|/dev/shm|/dev/.static/dev|/proc/*|/sys|/lib/init/rw)
+ /|/proc|/dev|/.dev|/dev/pts|/dev/shm|/dev/.static/dev|/proc/*|/sys|/sys/*|/lib/init/rw)
continue
;;
/var/run)
