[Bug 2060797] Re: df says Resource temporarily unavailable after kernel upgrade to 5.15.0-102

[Michael Quaintance]

Interesting output from dmesg while trying to mount the share.

[   59.143920] CIFS: VFS: Autodisabling the use of server inode numbers on \\192.168.3.7\public
[   59.143937] CIFS: VFS: The server doesn't seem to support them properly or the files might be on different servers (DFS)
[   59.143946] CIFS: VFS: Hardlinks will not be recognized on this mount. Consider mounting with the "noserverino" option to silence this message.
[   68.859538] CIFS: VFS: \\192.168.3.7 Error -104 sending data on socket to server
[  216.346839] CIFS: Attempting to mount \\192.168.3.7\public
[  216.576054] CIFS: VFS: parse_server_interfaces: malformed interface info
[  219.006807] CIFS: Attempting to mount \\192.168.3.7\public
[  219.152047] CIFS: VFS: parse_server_interfaces: malformed interface info

I've been running this for approximately a year, no issues so far.

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Title:
  df says Resource temporarily unavailable after kernel upgrade to
  5.15.0-102

Status in cifs-utils package in Ubuntu:
  Confirmed

Bug description:
  Hi, updagraded my Ubuntu 20.04 machine to the latest v5.15.0-102
  kernel and found my CIFS mounted volumes reporting the following:

  df: /home/user/share: Resource temporarily unavailable

  Others are reporting the same problem, e.g:

  Problem: df says Resource temporarily unavailable. 
  https://forums.linuxmint.com/viewtopic.php?p=2454229#p2454229

  It looks like there's a fix that's yet to make it to Ubuntu kernels:

  [PATCH 5.15.y 0/1] smb: client: fix "df: Resource temporarily unavailable" on 5.15 stable kernel
  https://lore.kernel.org/lkml/2024020616 ... nux.org/T/

  Booting into v5.15.0-101.11 works fine which, according to the Ubuntu
  changelog, was released the same day as 5.15.0-102.112:

  https://launchpad.net/ubuntu/+source/linux/+changelog

  Could this be looked at please?

  Thanks in advance.

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