Public bug reported:
I have mounted cifs share using /etc/fstab
//CIFS/share /mnt/test cifs
cred=/some/credfile,uid=user,gid=user,file_mode=0775,dir_mode=0775 0 0
destination server is NetApp Release 9.1P10
when saving file, for example "unzip /home/user/some.zip -d /mnt/test/2018/",
sometimes it ends with error:
Archive: /home/user/some.zip
inflating: /mnt/test/2018/some.xml fchmod (file attributes) error:
Permission denied
(warning) cannot set modif./access times
Permission denied
This happens approximately once in 20 saves for file sized about 100MB. After
this error cifs share is not usable until remounted, and then it will work till
next error.
errors from /var/log/kernel.log :
Oct 19 17:46:00 hostname kernel: [23873.602848] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.603404] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.605292] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.605790] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.606299] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.606766] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.607260] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.611361] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.612067] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:00 hostname kernel: [23873.612576] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:07 hostname kernel: [23879.954620] cifs_vfs_err: 1341 callbacks
suppressed
Oct 19 17:46:07 hostname kernel: [23879.954625] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:07 hostname kernel: [23879.955642] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:17 hostname kernel: [23890.370511] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:17 hostname kernel: [23890.371491] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:17 hostname kernel: [23890.388960] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:17 hostname kernel: [23890.389950] CIFS VFS: SMB signature
verification returned error = -13
Oct 19 17:46:17 hostname kernel: [23890.390467] CIFS VFS: cifs_put_smb_ses:
Session Logoff failure rc=-13
entry from /etc/mtab :
//CIFS/share /mnt/test cifs
rw,relatime,vers=1.0,cache=strict,username=username,domain=DOMAIN,uid=1000,forceuid,gid=1000,forcegid,addr=192.168.77.77,file_mode=0775,dir_mode=0775,nounix,mapposix,rsize=61440,wsize=65471,echo_interval=60,actimeo=1
0 0
And when share is mounted there is one error/warning? in /var/log/kernel.log ,
but setting noserverino wont help:
Oct 19 17:45:25 hostname kernel: [23838.095951] CIFS VFS: Autodisabling the use
of server inode numbers on \\CIFS\share. This server doesn't seem to support
them properly. Hardlinks will not be recognized on this mount. Consider
mounting with the "noserverino" option to silence this message.
What seems to help is setting manually vers=3.0 in /etc/fstab, but then
there is the same error about signature verification when unmounting,
that is why i am not so sure it helps, maybe it only happens less
frequently.
Kristaps.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: cifs-utils 2:6.4-1ubuntu1.1
ProcVersionSignature: Ubuntu 4.4.0-137.163-generic 4.4.144
Uname: Linux 4.4.0-137-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Fri Oct 19 18:20:25 2018
InstallationDate: Installed on 2016-04-26 (905 days ago)
InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.3)
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: cifs-utils
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: cifs-utils (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1798862
Title:
cifs share sometimes stops working while saving file
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