Public bug reported:
When booting 5.4.0-71-generic I can not access DFS entries anymore, with
5.4.0-70-generic this still works. Some details:
fstab entry:
//example.com/public /home/user/remote cifs
noauto,vers=default,noserverino,users,_netdev,user=remote_user,domain=example.com
0 0
shell session
~$ mount /home/user/remote
Password for remote_user@//example.com/public:
~$ ls /home/user/remote/dfs-folder
dfs-subfolder dfs-entry
~$ ls /home/user/remote/dfs-folder/dfs-entry
ls: cannot access '/home/user/remote/dfs-folder/dfs-entry': No such file or
directory
dmesg excerpt
[ 1219.568778] CIFS: Attempting to mount
//DC01.example.com/Public/dfs-folder/dfs-entry
[ 1219.584975] FS-Cache: Duplicate cookie detected
[ 1219.584986] FS-Cache: O-cookie c=000000006e995395 [p=00000000f4725c61 fl=222
nc=0 na=1]
[ 1219.584990] FS-Cache: O-cookie d=00000000a11c1428 n=0000000071ab21ba
[ 1219.584993] FS-Cache: O-key=[6] '5075626c6963'
[ 1219.585001] FS-Cache: N-cookie c=00000000a0608786 [p=00000000f4725c61 fl=2
nc=0 na=1]
[ 1219.585004] FS-Cache: N-cookie d=00000000a11c1428 n=00000000901f6a53
[ 1219.585007] FS-Cache: N-key=[6] '5075626c6963'
[ 1219.725834] FS-Cache: Duplicate cookie detected
[ 1219.725847] FS-Cache: O-cookie c=000000006e995395 [p=00000000f4725c61 fl=222
nc=0 na=1]
[ 1219.725851] FS-Cache: O-cookie d=00000000a11c1428 n=0000000071ab21ba
[ 1219.725854] FS-Cache: O-key=[6] '5075626c6963'
[ 1219.725864] FS-Cache: N-cookie c=000000000509709f [p=00000000f4725c61 fl=2
nc=0 na=1]
[ 1219.725868] FS-Cache: N-cookie d=00000000a11c1428 n=00000000556f158b
[ 1219.725870] FS-Cache: N-key=[6] '5075626c6963'
[ 1220.216524] CIFS VFS: cifs_read_super: get root inode failed
The dmesg from 5.4.0-70-generic does not have the line
CIFS VFS: cifs_read_super: get root inode failed
~$ lsb_release -rd
Description: KDE neon User Edition 5.21
Release: ~$ lsb_release -rd
Description: KDE neon User Edition 5.21
Release: 20.04
20.04
~$ apt-cache policy linux-image-generic
linux-image-generic:
Installed: 5.4.0.71.74
Candidate: 5.4.0.71.74
Version table:
*** 5.4.0.71.74 500
500 http://de.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
100 /var/lib/dpkg/status
5.4.0.26.32 500
500 http://de.archive.ubuntu.com/ubuntu focal/main amd64 Packages
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "version.log"
https://bugs.launchpad.net/bugs/1923670/+attachment/5487455/+files/version.log
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https://bugs.launchpad.net/bugs/1923670
Title:
CIFS DFS entries not accessible with 5.4.0-71.74-generic
Status in linux package in Ubuntu:
New
Bug description:
When booting 5.4.0-71-generic I can not access DFS entries anymore,
with 5.4.0-70-generic this still works. Some details:
fstab entry:
//example.com/public /home/user/remote cifs
noauto,vers=default,noserverino,users,_netdev,user=remote_user,domain=example.com
0 0
shell session
~$ mount /home/user/remote
Password for remote_user@//example.com/public:
~$ ls /home/user/remote/dfs-folder
dfs-subfolder dfs-entry
~$ ls /home/user/remote/dfs-folder/dfs-entry
ls: cannot access '/home/user/remote/dfs-folder/dfs-entry': No such file or
directory
dmesg excerpt
[ 1219.568778] CIFS: Attempting to mount
//DC01.example.com/Public/dfs-folder/dfs-entry
[ 1219.584975] FS-Cache: Duplicate cookie detected
[ 1219.584986] FS-Cache: O-cookie c=000000006e995395 [p=00000000f4725c61
fl=222 nc=0 na=1]
[ 1219.584990] FS-Cache: O-cookie d=00000000a11c1428 n=0000000071ab21ba
[ 1219.584993] FS-Cache: O-key=[6] '5075626c6963'
[ 1219.585001] FS-Cache: N-cookie c=00000000a0608786 [p=00000000f4725c61 fl=2
nc=0 na=1]
[ 1219.585004] FS-Cache: N-cookie d=00000000a11c1428 n=00000000901f6a53
[ 1219.585007] FS-Cache: N-key=[6] '5075626c6963'
[ 1219.725834] FS-Cache: Duplicate cookie detected
[ 1219.725847] FS-Cache: O-cookie c=000000006e995395 [p=00000000f4725c61
fl=222 nc=0 na=1]
[ 1219.725851] FS-Cache: O-cookie d=00000000a11c1428 n=0000000071ab21ba
[ 1219.725854] FS-Cache: O-key=[6] '5075626c6963'
[ 1219.725864] FS-Cache: N-cookie c=000000000509709f [p=00000000f4725c61 fl=2
nc=0 na=1]
[ 1219.725868] FS-Cache: N-cookie d=00000000a11c1428 n=00000000556f158b
[ 1219.725870] FS-Cache: N-key=[6] '5075626c6963'
[ 1220.216524] CIFS VFS: cifs_read_super: get root inode failed
The dmesg from 5.4.0-70-generic does not have the line
CIFS VFS: cifs_read_super: get root inode failed
~$ lsb_release -rd
Description: KDE neon User Edition 5.21
Release: ~$ lsb_release -rd
Description: KDE neon User Edition 5.21
Release: 20.04
20.04
~$ apt-cache policy linux-image-generic
linux-image-generic:
Installed: 5.4.0.71.74
Candidate: 5.4.0.71.74
Version table:
*** 5.4.0.71.74 500
500 http://de.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu focal-security/main amd64
Packages
100 /var/lib/dpkg/status
5.4.0.26.32 500
500 http://de.archive.ubuntu.com/ubuntu focal/main amd64 Packages
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