Recently I started to experience a problem where bot CPUs get 100% utilization and I'm pretty certain it is related to my external USB drive. It appears to me that the CPU is mainly used by /usr/sbin/smbd -D -s /etc/smb.conf (see attached) and I have constant logs like Dec 7 11:01:40 RT-AC86U-4AB0 kernel: bcm63xx_nand ff801800.nand: intfc status c80000e0 (see attached). I have done the health-check and reformatting the USB drive and disable and enable SAMBA (or any changes related to R/W permissions to the USB on that page) and whiles this fixes the problem initially for few days the problem seems to come back after few days. The drive is less than 2 months old Patriot Memory Supersonic Rage Elite USB 3.1 Gen. 1, 128GB Flash Drive plugged into the USB 2 slot configured with 2GB SWAP on one partition with Ext4 and Journaling. Any ideas what may cause this problem?