This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1662573
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/1662573
Title:
bcache ioutil to 100% needs node reboot (no kern logs related)
Status in linux package in Ubuntu:
Incomplete
Bug description:
bcache (bcache0 in this sample) ioutil goes to 100% and avgqu-sz also
gets affected. Bcache slaves don't get affected, but does affect
storage performance.
See excerpt (bcache0):
http://pastebin.ubuntu.com/23948463/
* Bcache blocks are running Ceph OSDs.
* HW is PowerEdge R730xd
* Kernel version is: 4.4.0-51-generic
* Ubuntu 14.04.5 LTS
* bcache-tools 1.0.7-1~14.04.1
Please let me know if you would need further detail.
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