Bug 59152

Summary:	CIFS mount hangs on shutdown/restart
Product:	systemd	Reporter:	jree2kx
Component:	general	Assignee:	systemd-bugs
Status:	RESOLVED FIXED	QA Contact:	systemd-bugs
Severity:	normal
Priority:	medium	CC:	jree2kx, keepitsimpleengineer, mickael9
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
See Also:	https://bugs.freedesktop.org/show_bug.cgi?id=70002
Whiteboard:
i915 platform:		i915 features:

Description jree2kx 2013-01-09 04:49:42 UTC

If I have a CIFS mount in my fstab it mounts fine after boot, but when I shutdown or restart the system hangs for a few minutes. It appears systemd isn't unmounting the the network share prior to disconnecting the network, which causes the hang. The only workaround I have is to manually unmount the share first. I have searched all over the internet and Arch Forums to find a solution for this annoying bug. The only thing left to try is creating a rc.local.shutdown.service as someone recommended. I feel like that's a hacky solution. Here is the entry in my fstab:

//10.10.0.10/Music  /mnt/Music  cifs uid=j_r0dd,credentials=/etc/smb.auth,x-systemd.automount  0 0

Comment 1 Lennart Poettering 2013-01-14 22:34:17 UTC

Hmm, if you drop the automount bit for it, does it work correctly then?

Comment 2 jree2kx 2013-01-14 22:56:23 UTC

No. Same thing. I tried autofs and the same issue. I just switched to KDE and there is an option to run shutdown scripts. I added one to run "sudo umount -t cifs -a -f -l" and added myself to sudoers to execute umount without a password which does the trick for me. I'm not sure if the behavior is the same for NFS shares because I have none set up to test. The shares are being mounted after there is a network connection so it would make sense on shutdown to do the reverse and unmount them before the network service is shutdown.

Comment 3 Lennart Poettering 2013-02-04 21:00:08 UTC

Hmm, I wonder if 0c08f5cde749bd2818475e487109cd0d413452df fixes things for you? Could you test?

Comment 4 jree2kx 2013-03-18 00:02:02 UTC

Sorry, I somehow missed the email notification. If that patch is in 198, the issue is still there.

Comment 5 jree2kx 2013-05-13 00:16:21 UTC

I just switched to NFS and I do not have this issue anymore.

Comment 6 Mickaël Thomas 2013-06-16 19:42:12 UTC

I'm also having this issue.

https://www.samba.org/samba/docs/man/manpages-3/umount.cifs.8.html specifies that the -f option can be passed to umount.

Strangely enough, with -f the unmount process still seems to be blocking (even though the device is unmounted instantly).

Comment 7 Larry Johnson 2013-09-26 21:46:59 UTC

I'm having the hanging issue with systemd 207-5 and 3.11.1-2-ARCH x86_64.

System crashes (become unresonsive requires hard reset) when shutdown or restarted.

On restart the boot partition require fsck do to improper closure.

Stopping requires unount /dev/sdf1 ; sync ; poweroff -f

No such problem with i686 laptop.

Comment 8 Zbigniew Jedrzejewski-Szmek 2013-10-05 19:01:46 UTC

(In reply to comment #2)
>> Hmm, if you drop the automount bit for it, does it work correctly then?
> No. Same thing. I tried autofs and the same issue.
Just to verify, does it also hang if automount is not used at all?

Comment 9 Zbigniew Jedrzejewski-Szmek 2013-10-10 16:05:58 UTC

systemd side of the problem should be fixed in http://cgit.freedesktop.org/systemd/systemd/commit/?id=7700945. The issue that cifs mount cannot be forcibly unmounted probably remains. Feel free to take it up with fuse people or kernel people.

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