Seeing the same in our farm. journalctl -k -p err -b --no-full --no-pager
-- Logs begin at Sat 2019-11-02 16:23:20 PDT, end at Sun 2019-11-03 01:57:55 PDT. -- Nov 02 20:36:59 10.173.164.1-7e6e6109 kernel: cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info Nov 02 20:36:59 10.173.164.1-7e6e6109 kernel: cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info Nov 02 20:37:07 10.173.164.1-7e6e6109 kernel: cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info Nov 02 20:37:07 10.173.164.1-7e6e6109 kernel: cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed in Ubuntu. https://bugs.launchpad.net/bugs/1850860 Title: 5.0.0-32.34 causes system instability with cephfs Status in linux-signed package in Ubuntu: Confirmed Bug description: On Ubuntu 18.04 linux-image-5.0.0-32-generic 5.0.0-32.34~18.04.2 According to https://www.mail-archive.com/ceph- us...@ceph.io/msg00940.html the same happens on Disco with this kernel version. Processes that read data from CephFS get stuck, the system becomes unstable. dmesg contains messages like this: [ 1510.703090] cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info [ 1510.711590] cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info [ 1510.720093] cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info [ 1510.728592] cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info [ 1510.737086] cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info [ 1510.745587] cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info [ 1510.754080] cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info According to the discussion here: https://github.com/coreos/bugs/issues/2616 this is caused by a faulty patch. If that information is correct the problematic patch should be https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/disco/commit/?id=100a8eb40c492f2525cdae434c50d53ec7f5cc23 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1850860/+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
