FYI, we noticed the following commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit a5229050b69cfffb690b546c357ca5a60434c0c8 ("NVMe: Always use MSI/MSI-x interrupts") on test machine: lkp-hsx04: 120 threads Brickland Haswell-EX with 512G memory caused below changes: [ 54.378195] nvme nvme0: Could not set queue count (6) [ 54.383902] nvme nvme0: IO queues not created To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml Thanks, Xiaolong