NVMe device dropped offline:
Jun 11 16:14:11 Magnus kernel: nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0001 address=0xd9b94000 flags=0x0050]
Jun 11 16:14:41 Magnus kernel: nvme nvme0: I/O 374 QID 1 timeout, aborting
Jun 11 16:14:42 Magnus kernel: nvme nvme0: I/O 786 QID 3 timeout, aborting
Jun 11 16:14:42 Magnus kernel: nvme nvme0: I/O 209 QID 4 timeout, aborting
Jun 11 16:14:42 Magnus kernel: nvme nvme0: I/O 210 QID 4 timeout, aborting
Jun 11 16:15:12 Magnus kernel: nvme nvme0: I/O 374 QID 1 timeout, reset controller
Jun 11 16:15:12 Magnus kernel: nvme nvme0: I/O 2 QID 0 timeout, reset controller
Jun 11 16:16:21 Magnus kernel: nvme nvme0: Device not ready; aborting reset, CSTS=0x1
Jun 11 16:16:21 Magnus kernel: nvme nvme0: Abort status: 0x371
Look for a BIOS update, or try a different NVMe device/board, initial error is similar to the typical SATA controller problem with some Ryzen boards.