Hi. Sounds like you use kernel clients with kernels from canonical/ubuntu. Two kernels have a bug: 4.15.0-66 and 5.0.0-32 Updated kernels are said to have fixes. Older kernels also work: 4.15.0-65 and 5.0.0-31 Lars Wed, 30 Oct 2019 09:42:16 +0000 Bob Farrell <bob@xxxxxxxxxxxxxx> ==> ceph-users <ceph-users@xxxxxxxxxxxxxx> : > Hi. We are experiencing a CephFS client issue on one of our servers. > > ceph version 14.2.0 (3a54b2b6d167d4a2a19e003a705696d4fe619afc) nautilus > (stable) > > Trying to access, `umount`, or `umount -f` a mounted CephFS volumes causes > my shell to hang indefinitely. > > After a reboot I can remount the volumes cleanly but they drop out after < > 1 hour of use. > > I see this log entry multiple times when I reboot the server: > ``` > cache_from_obj: Wrong slab cache. inode_cache but object is from > ceph_inode_info > ``` > The machine then reboots after approx. 30 minutes. > > All other Ceph/CephFS clients and servers seem perfectly happy. CephFS > cluster is HEALTH_OK. > > Any help appreciated. If I can provide any further details please let me > know. > > Thanks in advance, _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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