** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1780066
Title:
[Bionic] Disk IO hangs when using BFQ as io scheduler
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
New
Bug description:
When BFQ is used, disk IO will hang some seconds after boot. This was
also reported in some public MLs [1][2]. The fix is already in
mainline, but it's not available in 4.15.
[1] https://lkml.org/lkml/2017/12/1/80
[2] https://groups.google.com/forum/#!topic/bfq-iosched/nB2cVfDMSOU
== SRU Justification ==
Three patches are cherry-picked for SRU. "block, bfq: add requeue-
request hook" is the fix, while the other two are cleanups and make
the whole fixes clean cherry-picks.
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