Hi I have an NVMe SSD that has 8 hw queues and on older kernels I see all 8 show up. However on a recent kernel (I tried 4.18), I only see 7. Is this a known issue?
$ uname -r 4.14.1-1.el7.elrepo.x86_64 $ ls /sys/block/nvme*n1/mq/*/cpu_list /sys/block/nvme0n1/mq/0/cpu_list /sys/block/nvme0n1/mq/1/cpu_list /sys/block/nvme0n1/mq/2/cpu_list /sys/block/nvme0n1/mq/3/cpu_list /sys/block/nvme0n1/mq/4/cpu_list /sys/block/nvme0n1/mq/5/cpu_list /sys/block/nvme0n1/mq/6/cpu_list /sys/block/nvme0n1/mq/7/cpu_list /sys/block/nvme1n1/mq/0/cpu_list /sys/block/nvme1n1/mq/1/cpu_list /sys/block/nvme1n1/mq/2/cpu_list /sys/block/nvme1n1/mq/3/cpu_list /sys/block/nvme1n1/mq/4/cpu_list /sys/block/nvme1n1/mq/5/cpu_list /sys/block/nvme1n1/mq/6/cpu_list /sys/block/nvme1n1/mq/7/cpu_list /sys/block/nvme2n1/mq/0/cpu_list /sys/block/nvme2n1/mq/1/cpu_list /sys/block/nvme2n1/mq/2/cpu_list /sys/block/nvme2n1/mq/3/cpu_list /sys/block/nvme2n1/mq/4/cpu_list /sys/block/nvme2n1/mq/5/cpu_list /sys/block/nvme2n1/mq/6/cpu_list /sys/block/nvme2n1/mq/7/cpu_list /sys/block/nvme3n1/mq/0/cpu_list /sys/block/nvme3n1/mq/1/cpu_list /sys/block/nvme3n1/mq/2/cpu_list /sys/block/nvme3n1/mq/3/cpu_list /sys/block/nvme3n1/mq/4/cpu_list /sys/block/nvme3n1/mq/5/cpu_list /sys/block/nvme3n1/mq/6/cpu_list /sys/block/nvme3n1/mq/7/cpu_list $ uname -r 4.18.10-1.el7.elrepo.x86_64 $ ls /sys/block/nvme*n1/mq/*/cpu_list /sys/block/nvme0n1/mq/0/cpu_list /sys/block/nvme0n1/mq/1/cpu_list /sys/block/nvme0n1/mq/2/cpu_list /sys/block/nvme0n1/mq/3/cpu_list /sys/block/nvme0n1/mq/4/cpu_list /sys/block/nvme0n1/mq/5/cpu_list /sys/block/nvme0n1/mq/6/cpu_list /sys/block/nvme1n1/mq/0/cpu_list /sys/block/nvme1n1/mq/1/cpu_list /sys/block/nvme1n1/mq/2/cpu_list /sys/block/nvme1n1/mq/3/cpu_list /sys/block/nvme1n1/mq/4/cpu_list /sys/block/nvme1n1/mq/5/cpu_list /sys/block/nvme1n1/mq/6/cpu_list /sys/block/nvme2n1/mq/0/cpu_list /sys/block/nvme2n1/mq/1/cpu_list /sys/block/nvme2n1/mq/2/cpu_list /sys/block/nvme2n1/mq/3/cpu_list /sys/block/nvme2n1/mq/4/cpu_list /sys/block/nvme2n1/mq/5/cpu_list /sys/block/nvme2n1/mq/6/cpu_list /sys/block/nvme3n1/mq/0/cpu_list /sys/block/nvme3n1/mq/1/cpu_list /sys/block/nvme3n1/mq/2/cpu_list /sys/block/nvme3n1/mq/3/cpu_list /sys/block/nvme3n1/mq/4/cpu_list /sys/block/nvme3n1/mq/5/cpu_list /sys/block/nvme3n1/mq/6/cpu_list
