Hi,
   I just got a freeze 6 hours in to using idle=nomwait amdgpu.audio=0

It looks like GPU errors, these are the last messages in journal ctl before I rebooted:

Jun 25 23:04:06.590348 computer kernel: gmc_v9_0_process_interrupt: 71 callbacks suppressed
Jun 25 23:04:06.601295 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.601704 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a02000 from 27
Jun 25 23:04:06.601941 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00301031
Jun 25 23:04:06.602156 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.602435 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a04000 from 27
Jun 25 23:04:06.602663 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.602949 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.603189 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a01000 from 27
Jun 25 23:04:06.603413 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.603646 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.603867 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a06000 from 27
Jun 25 23:04:06.604108 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.604326 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.604569 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a08000 from 27
Jun 25 23:04:06.604890 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.605147 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.605371 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a06000 from 27
Jun 25 23:04:06.605606 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.605821 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.606050 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a01000 from 27
Jun 25 23:04:06.606275 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.606574 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.606792 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a0c000 from 27
Jun 25 23:04:06.607038 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.607256 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.607483 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a0a000 from 27
Jun 25 23:04:06.607700 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000
Jun 25 23:04:06.607927 computer kernel: amdgpu 0000:04:00.0: [gfxhub] VMC page fault (src_id:0 ring:24 vmid:3 pasid:32768)
Jun 25 23:04:06.608139 computer kernel: amdgpu 0000:04:00.0:   at page 0x0000000104a04000 from 27
Jun 25 23:04:06.608380 computer kernel: amdgpu 0000:04:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00000000