sda is definitely being registered as mq-deadline .. and it appears to remain that way until quite late in the boot. But then something is changing the sda scheduler later at some point. No luck so far determining what is making that later change.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-gcp in Ubuntu. https://bugs.launchpad.net/bugs/1903543 Title: Block device scheduler should be multiqueue for spinning disks Status in linux-gcp package in Ubuntu: Incomplete Bug description: On a GCE e2-medium instance running Groovy with a standard persistent disk, we see: $ cat /sys/block/sda/queue/rotational 1 $ cat /sys/block/sda/queue/scheduler [none] mq-deadline I'd expect the contents of /sys/block/sda/queue/scheduler to be: [mq-deadline] none --- $ lsb_release -rd Description: Ubuntu 20.10 Release: 20.10 $ apt-cache policy linux-gcp linux-gcp: Installed: 5.8.0.1008.8 Candidate: 5.8.0.1008.8 Version table: *** 5.8.0.1008.8 500 500 http://us-central1.gce.archive.ubuntu.com/ubuntu groovy/main amd64 Packages 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-gcp/+bug/1903543/+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