On 10-Nov-15 14:22, Tom H wrote:
On Tue, Nov 10, 2015 at 12:32 AM, Mike Gilbert <flop...@gentoo.org> wrote:
On Mon, Nov 9, 2015 at 2:36 PM, Jarry <mr.ja...@gmail.com> wrote:
On 08-Nov-15 17:58, Mike Gilbert wrote:
On Fri, Nov 6, 2015 at 12:19 PM, Jarry <mr.ja...@gmail.com> wrote:
I noted one strange thing today: It seems one of my servers lost "/"!
vs5-dns ~ # df
Filesystem 1K-blocks Used Available Use% Mounted on
/var/log/named 10138552 2223148 7377344 24% /chroot/dns/var/log/named
tmpfs 308196 420 307776 1% /run
dev 10240 0 10240 0% /dev
shm 1540968 0 1540968 0% /dev/shm
cgroup_root 10240 0 10240 0% /sys/fs/cgroup
none 1048576 0 1048576 0% /var/tmp/portage
Is your /etc/mtab a regular file, or is it a symlink to
/proc/self/mounts? The latter is recommended.
It is regular file. I never changed it...
vs5-dns ~ # ls -l /etc/mtab
-rw-r--r-- 1 root root 908 Nov 9 19:14 /etc/mtab
Anyway, please have a look at the contents of /etc/mtab,
/proc/self/mounts, and proc/self/mountinfo while named is running and
when it is stopped. If you pastebin them we can take a look for key
differences.
With bind running:
http://pastebin.com/wkTW6xAY
without bind:
http://pastebin.com/JG5FPNDW
Can you try replacing /etc/mtab with a symlink to /proc/self/mounts to
see if it makes any difference? That triggers different code paths in
several programs.
Is "/" shown when you run "df -a"? If it's shown, then there's a bug
in coreutils (as long as they accept a bug on a system where mtab
isn't a symlink) because, AFAIR, "df" should show the mount with the
shortest mount path if a filesystem's mounted more than once.
vs5-dns ~ # df -a
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 - - - - /
proc 0 0 0 - /proc
tmpfs 308188 420 307768 1% /run
dev 10240 0 10240 0% /dev
mqueue 0 0 0 - /dev/mqueue
devpts 0 0 0 - /dev/pts
shm 1540940 0 1540940 0% /dev/shm
sysfs 0 0 0 - /sys
cgroup_root 10240 0 10240 0% /sys/fs/cgroup
openrc 0 0 0 - /sys/fs/cgroup/openrc
none 1048576 0 1048576 0% /var/tmp/portage
/etc/bind - - - - /chroot/dns/etc/bind
/var/bind - - - - /chroot/dns/var/bind
/var/log/named 10138552 2300032 7300460 24% /chroot/dns/var/log/named
So there *is* /, but strangely it has no size. But it suddenly does
have its proper size as soon as I stop bind running:
vs5-dns ~ # df -a
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 10138552 2300024 7300468 24% /
proc 0 0 0 - /proc
tmpfs 308188 416 307772 1% /run
dev 10240 0 10240 0% /dev
mqueue 0 0 0 - /dev/mqueue
devpts 0 0 0 - /dev/pts
shm 1540940 0 1540940 0% /dev/shm
sysfs 0 0 0 - /sys
cgroup_root 10240 0 10240 0% /sys/fs/cgroup
openrc 0 0 0 - /sys/fs/cgroup/openrc
none 1048576 0 1048576 0% /var/tmp/portage
Jarry
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