Bug#857679: reopen #761909: system fails to shutdown if there is a mounted nfs share, due to it not being unmounted before network is brought down

[Guus Sliepen]

On Mon, Mar 13, 2017 at 10:00:04PM +0100, Giuseppe Bilotta wrote:

> I am still affected by issue #761909. Essentially, if there is a mounted nfs
> share, shutdown will stall forever trying to unmount it unsuccessfully due to
> the network going down before the attempted unmounting of the share. This only
> happens with systemd.

Hm, on a fresh stretch install here systemd does seem to stop NFS mounts
before stopping the network.

Could you send me a full copy of your /etc/fstab and
/etc/network/interfaces?

-- 
Met vriendelijke groet / with kind regards,
  Guus Sliepen 


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Bug#857679: reopen #761909: system fails to shutdown if there is a mounted nfs share, due to it not being unmounted before network is brought down

[Giuseppe Bilotta]

Package: ifupdown
Version: 0.8.19
Severity: normal

I am still affected by issue #761909. Essentially, if there is a mounted nfs
share, shutdown will stall forever trying to unmount it unsuccessfully due to
the network going down before the attempted unmounting of the share. This only
happens with systemd.

The mount unit correctly depends on networking.service:

oblomov@oblomov:~$ systemctl list-dependencies oneforall.mount 
oneforall.mount
● ├─-.mount
● ├─system.slice
● └─network-online.target
●   └─networking.service
oblomov@oblomov:~$ 

but apparently this is not sufficient to get it unmounted before the network is
brought down. It's also hard to see why the network gets brought down early,
because the logs are always corrupt since the only way to complete the shutdown
or reboot is to forcefully kill the machine.


-- Package-specific info:
--- up and down scripts installed:
/etc/network/if-down.d:
total 16
-rwxr-xr-x 1 root root 1015 Apr 13  2015 avahi-autoipd
-rwxr-xr-x 1 root root  372 Jul  4  2016 openvpn
-rwxr-xr-x 1 root root  256 Jul 20  2013 resolvconf
-rwxr-xr-x 1 root root  332 Jan  6  2013 upstart
lrwxrwxrwx 1 root root   32 Feb 20 11:55 wpasupplicant -> 
../../wpa_supplicant/ifupdown.sh

/etc/network/if-post-down.d:
total 4
lrwxrwxrwx 1 root root   23 Jan 23 09:41 avahi-daemon -> ../if-up.d/avahi-daemon
lrwxrwxrwx 1 root root   29 Feb 11 00:16 bridge -> /lib/bridge-utils/ifupdown.sh
-rwxr-xr-x 1 root root 1409 Mar 24  2016 wireless-tools
lrwxrwxrwx 1 root root   32 Feb 20 11:55 wpasupplicant -> 
../../wpa_supplicant/ifupdown.sh

/etc/network/if-pre-up.d:
total 12
lrwxrwxrwx 1 root root   29 Feb 11 00:16 bridge -> /lib/bridge-utils/ifupdown.sh
-rwxr-xr-x 1 root root  344 Jan 28  2014 ethtool
-rwxr-xr-x 1 root root 4178 Mar 24  2016 wireless-tools
lrwxrwxrwx 1 root root   32 Feb 20 11:55 wpasupplicant -> 
../../wpa_supplicant/ifupdown.sh

/etc/network/if-up.d:
total 84
-rwxr-xr-x 1 root root  817 Jul 20  2013 000resolvconf
-rwxr-xr-x 1 root root 4359 May 29  2016 00check-network-cable
-rwxr-xr-x 1 root root 4341 Oct  1  2014 00check-network-cable.dpkg-old
-rwxr-xr-x 1 root root 5530 Feb  6  2016 10check-duplicate-ip
-rwxr-xr-x 1 root root 3848 Feb  6  2016 10check-duplicate-ip6
-rwxr-xr-x 1 root root 4280 Apr 10  2014 20static-routes
-rwxr-xr-x 1 root root 4566 Apr 10  2014 30check-gateway
-rwxr-xr-x 1 root root  923 Apr 13  2015 avahi-autoipd
-rwxr-xr-x 1 root root  484 Mar  6  2013 avahi-daemon
-rwxr-xr-x 1 root root 1685 Sep 22  2014 ethtool
-rwxr-xr-x 1 root root 4958 Jun  8  2014 mountnfs
-rwxr-xr-x 1 root root  900 Apr 28  2016 ntpdate
-rwxr-xr-x 1 root root  980 Jul 29  2016 openssh-server
-rwxr-xr-x 1 root root  385 Jul  4  2016 openvpn
-rwxr-xr-x 1 root root 1483 Jan  6  2013 upstart
lrwxrwxrwx 1 root root   32 Feb 20 11:55 wpasupplicant -> 
../../wpa_supplicant/ifupdown.sh


-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages ifupdown depends on:
ii  adduser  3.115
ii  init-system-helpers  1.47
ii  iproute2 4.9.0-1
ii  libc62.24-9
ii  lsb-base 9.20161125

Versions of packages ifupdown recommends:
ii  isc-dhcp-client [dhcp-client]  4.3.5-3

Versions of packages ifupdown suggests:
ii  ppp 2.4.7-1+4
pn  rdnssd  

-- no debconf information