kern.log when the bug triggers ** Attachment added: "kern.log when bug triggers" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1851470/+attachment/5303216/+files/kern.log-cephfs-5.0.0-32.bug
-- 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/1851470 Title: cephfs mounts hangs machine when written to Status in linux package in Ubuntu: Confirmed Bug description: As reported on the ceph-users mailing list, the latest HWE kernel for ubuntu 18.04 (and the current kernel for disco 19.04) has a problem with cephfs mounts when you write to it. (kernel version 5.0.0-32) We are using cephfs to write backups to with amanda (virtual tapes) and the backups started failing when the virtual machine was running this version of the kernel. As it is the latest kernel version and we like to keep up with updates, we have trouble uninstalling the latest kernel version, because then we also need to uninstall the package that depends on the latest hwe kernel. https://www.mail-archive.com/ceph-users@ceph.io/msg00940.html downgrading to (or booting) 5.0.0-31 helps: https://www.mail-archive.com/ceph-users@ceph.io/msg00941.html The problem seems to be this backported patch: "ceph: use ceph_evict_inode to cleanup inode's resource" The severity is high when using cephfs mounted while running this kernel, the file system is unusable. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1851470/+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
