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