This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1737033
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1737033
Title:
upgrading linux-image package to 4.4.0-103.126 breaks Ceph network
file system connection
Status in linux package in Ubuntu:
Incomplete
Bug description:
After clients have upgraded to 4.4.0-103.126 they can no longer
connect to the Ceph network.
Using the Grub menu to boot the previous kernel fixes the issue.
The error in dmesg is:
[ 46.811897] FS-Cache: Loaded
[ 46.843670] Key type ceph registered
[ 46.844177] libceph: loaded (mon/osd proto 15/24)
[ 46.863107] FS-Cache: Netfs 'ceph' registered for caching
[ 46.863116] ceph: loaded (mds proto 32)
[ 46.884392] libceph: client3354099 fsid
2efbeab1-4903-4c4c-8365-6778afecbcbd
[ 46.886856] libceph: mon0 10.10.2.111:6789 session established
[ 46.897487] ceph: problem parsing mds trace -5
[ 46.897491] ceph: mds parse_reply err -5
[ 46.897492] ceph: mdsc_handle_reply got corrupt reply mds0(tid:1)
All clients are running ceph client version:
ii ceph-fs-common 10.2.9-0ubuntu0.16.04.1
Server nodes are running 10.2.6 packages as supplied by Ceph.
All 10.2.* versions are compatible. Using the previous kernel allows
the connection to work.
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