Bug 1265563 - long reboot due to failed umount, unmounting timed out, unmounting-sigterm, Received SIGCHLD
long reboot due to failed umount, unmounting timed out, unmounting-sigterm, R...
Product: Fedora
Classification: Fedora
Component: systemd (Show other bugs)
x86_64 Linux
unspecified Severity unspecified
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Assigned To: systemd-maint
Fedora Extras Quality Assurance
Depends On:
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Reported: 2015-09-23 04:46 EDT by frollic nilsson
Modified: 2016-07-19 13:59 EDT (History)
7 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2016-07-19 13:59:36 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
shutdown log (1011.82 KB, text/plain)
2015-09-23 04:46 EDT, frollic nilsson
no flags Details
log after _netdev added (1010.16 KB, text/plain)
2015-09-24 02:13 EDT, frollic nilsson
no flags Details

  None (edit)
Description frollic nilsson 2015-09-23 04:46:20 EDT
Created attachment 1076123 [details]
shutdown log

Description of problem:

When executing reboot, the reboot takes around 30 mins. The problem seems to be unmount not beeing able to umount a NFS mount.

This is on a system just upgraded from FC21 to FC22.

Version-Release number of selected component (if applicable):


How reproducible:

mount during start up in fstab -     /hdc                    nfs     retry=5,bg      0 0

reboot or shutdown system

Steps to Reproduce:

Actual results:
reboot after ~30 mins

Expected results:
faster reboot.

Additional info:
this system is accessing the local LAN via WiFi.

Shutdown log attached.
Comment 1 Jan Synacek 2015-09-23 07:18:47 EDT
Try appending '_netdev' to the mount options.
Comment 2 frollic nilsson 2015-09-24 02:13 EDT
Created attachment 1076348 [details]
log after _netdev added
Comment 3 frollic nilsson 2015-09-24 02:13:36 EDT
added _netdev -     /hdc            nfs     retry=5,bg,_netdev      0 0

mount sais: on /hdc type nfs4 (rw,relatime,vers=4.2,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=,local_lock=none,addr=

unfortnately the problem still occurs :/

new log attached, but the umount errors seem to be the same.
Comment 4 Michal Sekletar 2015-09-24 03:38:26 EDT
Adding _netdev for nfs mount points shouldn't be necessary because nfs filesystem type is sufficient to deduce this is network mount.
Comment 5 Fedora End Of Life 2016-07-19 13:59:36 EDT
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this

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