Pinebook pro IOMMU enabled crashes

Hi

Perhaps this one 
https://www.mail-archive.com/[email protected]/msg126068.html is 
giving troubles?

main-n249225-f673cc5edac3-dirty
nvme0: <Generic NVMe Device> at device 0.0 on pci1
Fatal data abort:
   x0:                0
   x1:             1000
   x2:            10040
   x3:             2000
   x4:                1
   x5: ffff00009a7a0168
   x6: 1d00000000000000
   x7:   10000000000000
   x8:             1168
   x9:                1
  x10:                0
  x11: ffff000000f35140
  x12: ffff000000f350c0
  x13:                1
  x14:            10000
  x15:                1
  x16:            10000
  x17: ffff000000f350dc
  x18: ffff00000110d180
  x19: ffff00000110d248
  x20:                0
  x21: ffff00009a79f000
  x22: ffffa000010b0a00
  x23: ffffa000010a2880
  x24: ffffa0000116da00
  x25: ffff000000b4fd78
  x26: ffffa0000116db00
  x27: ffff000000e83000
  x28:                7
  x29: ffff00000110d190
   sp: ffff00000110d180
   lr: ffff00000077520c
  elr: ffff0000007a03ac
spsr:         200000c5
  far:                0
  esr:         96000004
panic: vm_fault failed: ffff0000007a03ac error 1
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
vpanic() at vpanic+0x184
panic() at panic+0x44
data_abort() at data_abort+0x23c
handle_el1h_sync() at handle_el1h_sync+0x78
--- exception, esr 0x96000004
iommu_map_msi() at iommu_map_msi+0x20
gicv3_iommu_init() at gicv3_iommu_init+0x4c
intr_alloc_msix() at intr_alloc_msix+0x13c
rk_pcie_alloc_msix() at rk_pcie_alloc_msix+0xfc
pci_alloc_msix_method() at pci_alloc_msix_method+0x1a8
nvme_pci_attach() at nvme_pci_attach+0x378
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
pci_attach() at pci_attach+0xe8
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
pci_attach() at pci_attach+0xe8
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
rk_pcie_attach() at rk_pcie_attach+0x14cc
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_new_pass() at bus_generic_new_pass+0xf8
bus_generic_new_pass() at bus_generic_new_pass+0xa8
bus_generic_new_pass() at bus_generic_new_pass+0xa8
bus_set_pass() at bus_set_pass+0x4c
mi_startup() at mi_startup+0x12c
virtdone() at virtdone+0x6c