I feel compelled to agree with Axel and Andreas: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2060780/comments/9
This bug is particularly surprising for a stable release, breaking CIFS is not a pleasant thing to deal with. I tend to stick to the stable builds to avoid things just like this. Thank you all for the effort, obviously. It truly is appreciated but the sooner this is fixed up the better, it should really be at critical levels of severity. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2060780 Title: CIFS stopped working/is unstable with kernel update to 5.15.0-102.112 Status in linux package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Bug description: Hi, updated some Ubuntu 22.04 systems to lastest available state this morning, which caused CIFS mounts (from various fileservers) to stop working. Kernel was updated to version 5.15.0-102-generic. I can mount the shares without problems (mount -t cifs), but then, df for example tells me: df: /mnt: Resource temporarily unavailable. I'm able to list and browse all the files, but accessing them (even readonly) is very unstable. Sometimes it works and sometimes it just gives me i/o errors. Switching back to 5.15.0-101-generic or 5.15.0-100-generic solves the problem and everything works again as expected. Seems like some bug has been implemented in 5.15.0-102-generic... To reproduce the problem, I started a while loop on one server to write to some file on a specific mounted CIFS share and read it from another one root@<hostname1>:~# while true; do echo "$(date) hallo" >> /mnt/hallo.txt; sleep 1 ; done -bash: /mnt/hallo.txt: Input/output error -bash: /mnt/hallo.txt: Input/output error ^C root@<hostname2>:~$ tail -f /mnt/hallo.txt Tue Apr 9 04:10:52 PM CEST 2024 hallo Tue Apr 9 04:10:53 PM CEST 2024 hallo Tue Apr 9 04:10:54 PM CEST 2024 hallo Tue Apr 9 04:10:55 PM CEST 2024 hallo Tue Apr 9 04:10:56 PM CEST 2024 hallo Tue Apr 9 04:10:57 PM CEST 2024 hallo Tue Apr 9 04:10:58 PM CEST 2024 hallo Tue Apr 9 04:10:59 PM CEST 2024 hallo Tue Apr 9 04:11:00 PM CEST 2024 hallo Tue Apr 9 04:11:01 PM CEST 2024 hallo tail: cannot determine location of '/mnt/hallo.txt'. reverting to polling: Resource temporarily unavailable Tue Apr 9 04:11:04 PM CEST 2024 hallo Tue Apr 9 04:11:05 PM CEST 2024 hallo Tue Apr 9 04:11:06 PM CEST 2024 hallo Tue Apr 9 04:11:07 PM CEST 2024 hallo Tue Apr 9 04:11:08 PM CEST 2024 hallo Tue Apr 9 04:11:09 PM CEST 2024 hallo Tue Apr 9 04:11:10 PM CEST 2024 hallo While doing this, both servers tell me, the resource is unavailable root@<hostname1>:~# df -h /mnt df: /mnt: Resource temporarily unavailable root@<hostname2>:~$ df -h /mnt df: /mnt: Resource temporarily unavailable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2060780/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
