This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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: Fix Committed 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 == Impact: Disk IO hangs several seconds after booting with a bionic Ubuntu kernel Fix: 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. Testcase: Boot the kernel with BFQ as IO scheduler. Risk of Regression: Clean cherry-picks from upstream so the risk should be fairly low. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1780066/+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
