Re: nvme-pci: number of queues off by one

I got the same result when emulating nvme with qemu: the VM has 12 cpu, while the num_queues of nvme is 8. # uname -r 4.14.1 # ll /sys/block/nvme*n1/mq/*/cpu_list -r--r--r-- 1 root root 4096 Oct 8 14:30 /sys/block/nvme0n1/mq/0/cpu_list -r--r--r-- 1 root root 4096 Oct 8 14:30 /sys/block/nvme0n1/m

Re: nvme-pci: number of queues off by one

I can reproduce with qemu: # 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 H

nvme-pci: number of queues off by one

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/