Bug#779628: bcache: task bcache_writebac blocked for more than 240 seconds, system load high when module used

To: Debian Bug Tracking System <779628@bugs.debian.org>
Subject: Bug#779628: bcache: task bcache_writebac blocked for more than 240 seconds, system load high when module used
From: Tim Small <tim@seoss.co.uk>
Date: Fri, 05 Feb 2016 21:09:37 +0000
Message-id: <[🔎] 20160205210937.4179.63538.reportbug@ermintrude.seoss.co.uk>
Reply-to: Tim Small <tim@seoss.co.uk>, 779628@bugs.debian.org

Package: src:linux
Version: 3.16.7-ckt20-1+deb8u3
Followup-For: Bug #779628

I think this patch fixes this issue:

https://github.com/torvalds/linux/commit/627ccd20b4ad3ba836472468208e2ac4dfadbf03

It's included in this set which got merged in the 4.5 window.  See this
thread:

https://lkml.org/lkml/2015/12/30/331

It would be good to get this set into Stretch, and possibly a Jessie
point release too (IIRC, it will apply cleanly to the Jessie kernel).

Tim.

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Follow-Ups:
- Bug#779628: bcache: task bcache_writebac blocked for more than 240 seconds, system load high when module used
  - From: Ben Hutchings <ben@decadent.org.uk>

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