Some more information to help tracking this down. In the system log I have:
$ dmesg | grep nvidia_uvm [ 103.476413] nvidia_uvm: no symbol version for nvUvmInterfaceChannelDestroy [ 103.476417] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelDestroy (err -22) [ 103.476424] nvidia_uvm: no symbol version for nvUvmInterfaceQueryCaps [ 103.476425] nvidia_uvm: Unknown symbol nvUvmInterfaceQueryCaps (err -22) [ 103.476436] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryAllocSys [ 103.476437] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryAllocSys (err -22) [ 103.476443] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuMap [ 103.476444] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuMap (err -22) [ 103.476450] nvidia_uvm: no symbol version for nvUvmInterfaceKillChannel [ 103.476450] nvidia_uvm: Unknown symbol nvUvmInterfaceKillChannel (err -22) [ 103.476457] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuUnMap [ 103.476458] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuUnMap (err -22) [ 103.476465] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreateMirrored [ 103.476466] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreateMirrored (err -22) [ 103.476493] nvidia_uvm: no symbol version for nvUvmInterfaceServiceDeviceInterruptsRM [ 103.476494] nvidia_uvm: Unknown symbol nvUvmInterfaceServiceDeviceInterruptsRM (err -22) [ 103.476501] nvidia_uvm: no symbol version for nvUvmInterfaceDeRegisterUvmOps [ 103.476502] nvidia_uvm: Unknown symbol nvUvmInterfaceDeRegisterUvmOps (err -22) [ 103.476508] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryFree [ 103.476508] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryFree (err -22) [ 103.476514] nvidia_uvm: no symbol version for nvUvmInterfaceGetUvmPrivRegion [ 103.476515] nvidia_uvm: Unknown symbol nvUvmInterfaceGetUvmPrivRegion (err -22) [ 103.476522] nvidia_uvm: no symbol version for nvUvmInterfaceGetAttachedUuids [ 103.476523] nvidia_uvm: Unknown symbol nvUvmInterfaceGetAttachedUuids (err -22) [ 103.476531] nvidia_uvm: no symbol version for nvUvmInterfaceSessionDestroy [ 103.476532] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionDestroy (err -22) [ 103.476538] nvidia_uvm: no symbol version for nvUvmInterfaceCheckEccErrorSlowpath [ 103.476539] nvidia_uvm: Unknown symbol nvUvmInterfaceCheckEccErrorSlowpath (err -22) [ 103.476545] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreate [ 103.476546] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreate (err -22) [ 103.476551] nvidia_uvm: no symbol version for nvUvmInterfaceCopyEngineAllocate [ 103.476552] nvidia_uvm: Unknown symbol nvUvmInterfaceCopyEngineAllocate (err -22) [ 103.476558] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceDestroy [ 103.476559] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceDestroy (err -22) [ 103.476565] nvidia_uvm: no symbol version for nvUvmInterfaceRegisterUvmCallbacks [ 103.476566] nvidia_uvm: Unknown symbol nvUvmInterfaceRegisterUvmCallbacks (err -22) [ 103.476572] nvidia_uvm: no symbol version for nvUvmInterfaceGetGpuArch [ 103.476573] nvidia_uvm: Unknown symbol nvUvmInterfaceGetGpuArch (err -22) [ 103.476579] nvidia_uvm: no symbol version for nvUvmInterfaceChannelAllocate [ 103.476579] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelAllocate (err -22) [ 103.476588] nvidia_uvm: no symbol version for nvUvmInterfaceDupAllocation [ 103.476589] nvidia_uvm: Unknown symbol nvUvmInterfaceDupAllocation (err -22) [ 103.476597] nvidia_uvm: no symbol version for nvUvmInterfaceSessionCreate [ 103.476598] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionCreate (err -22) [ 442.286717] nvidia_uvm: no symbol version for nvUvmInterfaceChannelDestroy [ 442.286720] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelDestroy (err -22) [ 442.286727] nvidia_uvm: no symbol version for nvUvmInterfaceQueryCaps [ 442.286728] nvidia_uvm: Unknown symbol nvUvmInterfaceQueryCaps (err -22) [ 442.286738] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryAllocSys [ 442.286738] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryAllocSys (err -22) [ 442.286744] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuMap [ 442.286745] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuMap (err -22) [ 442.286750] nvidia_uvm: no symbol version for nvUvmInterfaceKillChannel [ 442.286751] nvidia_uvm: Unknown symbol nvUvmInterfaceKillChannel (err -22) [ 442.286758] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuUnMap [ 442.286758] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuUnMap (err -22) [ 442.286765] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreateMirrored [ 442.286765] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreateMirrored (err -22) [ 442.286791] nvidia_uvm: no symbol version for nvUvmInterfaceServiceDeviceInterruptsRM [ 442.286791] nvidia_uvm: Unknown symbol nvUvmInterfaceServiceDeviceInterruptsRM (err -22) [ 442.286798] nvidia_uvm: no symbol version for nvUvmInterfaceDeRegisterUvmOps [ 442.286798] nvidia_uvm: Unknown symbol nvUvmInterfaceDeRegisterUvmOps (err -22) [ 442.286804] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryFree [ 442.286805] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryFree (err -22) [ 442.286810] nvidia_uvm: no symbol version for nvUvmInterfaceGetUvmPrivRegion [ 442.286811] nvidia_uvm: Unknown symbol nvUvmInterfaceGetUvmPrivRegion (err -22) [ 442.286817] nvidia_uvm: no symbol version for nvUvmInterfaceGetAttachedUuids [ 442.286818] nvidia_uvm: Unknown symbol nvUvmInterfaceGetAttachedUuids (err -22) [ 442.286826] nvidia_uvm: no symbol version for nvUvmInterfaceSessionDestroy [ 442.286826] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionDestroy (err -22) [ 442.286832] nvidia_uvm: no symbol version for nvUvmInterfaceCheckEccErrorSlowpath [ 442.286833] nvidia_uvm: Unknown symbol nvUvmInterfaceCheckEccErrorSlowpath (err -22) [ 442.286838] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreate [ 442.286839] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreate (err -22) [ 442.286844] nvidia_uvm: no symbol version for nvUvmInterfaceCopyEngineAllocate [ 442.286845] nvidia_uvm: Unknown symbol nvUvmInterfaceCopyEngineAllocate (err -22) [ 442.286850] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceDestroy [ 442.286851] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceDestroy (err -22) [ 442.286856] nvidia_uvm: no symbol version for nvUvmInterfaceRegisterUvmCallbacks [ 442.286857] nvidia_uvm: Unknown symbol nvUvmInterfaceRegisterUvmCallbacks (err -22) [ 442.286862] nvidia_uvm: no symbol version for nvUvmInterfaceGetGpuArch [ 442.286863] nvidia_uvm: Unknown symbol nvUvmInterfaceGetGpuArch (err -22) [ 442.286868] nvidia_uvm: no symbol version for nvUvmInterfaceChannelAllocate [ 442.286869] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelAllocate (err -22) [ 442.286877] nvidia_uvm: no symbol version for nvUvmInterfaceDupAllocation [ 442.286877] nvidia_uvm: Unknown symbol nvUvmInterfaceDupAllocation (err -22) [ 442.286885] nvidia_uvm: no symbol version for nvUvmInterfaceSessionCreate [ 442.286886] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionCreate (err -22) [ 548.197449] nvidia_uvm: no symbol version for nvUvmInterfaceChannelDestroy [ 548.197453] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelDestroy (err -22) [ 548.197459] nvidia_uvm: no symbol version for nvUvmInterfaceQueryCaps [ 548.197460] nvidia_uvm: Unknown symbol nvUvmInterfaceQueryCaps (err -22) [ 548.197469] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryAllocSys [ 548.197470] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryAllocSys (err -22) [ 548.197475] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuMap [ 548.197476] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuMap (err -22) [ 548.197480] nvidia_uvm: no symbol version for nvUvmInterfaceKillChannel [ 548.197481] nvidia_uvm: Unknown symbol nvUvmInterfaceKillChannel (err -22) [ 548.197487] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuUnMap [ 548.197488] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuUnMap (err -22) [ 548.197494] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreateMirrored [ 548.197495] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreateMirrored (err -22) [ 548.197518] nvidia_uvm: no symbol version for nvUvmInterfaceServiceDeviceInterruptsRM [ 548.197519] nvidia_uvm: Unknown symbol nvUvmInterfaceServiceDeviceInterruptsRM (err -22) [ 548.197525] nvidia_uvm: no symbol version for nvUvmInterfaceDeRegisterUvmOps [ 548.197525] nvidia_uvm: Unknown symbol nvUvmInterfaceDeRegisterUvmOps (err -22) [ 548.197530] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryFree [ 548.197531] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryFree (err -22) [ 548.197536] nvidia_uvm: no symbol version for nvUvmInterfaceGetUvmPrivRegion [ 548.197536] nvidia_uvm: Unknown symbol nvUvmInterfaceGetUvmPrivRegion (err -22) [ 548.197542] nvidia_uvm: no symbol version for nvUvmInterfaceGetAttachedUuids [ 548.197543] nvidia_uvm: Unknown symbol nvUvmInterfaceGetAttachedUuids (err -22) [ 548.197550] nvidia_uvm: no symbol version for nvUvmInterfaceSessionDestroy [ 548.197551] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionDestroy (err -22) [ 548.197555] nvidia_uvm: no symbol version for nvUvmInterfaceCheckEccErrorSlowpath [ 548.197556] nvidia_uvm: Unknown symbol nvUvmInterfaceCheckEccErrorSlowpath (err -22) [ 548.197561] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreate [ 548.197562] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreate (err -22) [ 548.197566] nvidia_uvm: no symbol version for nvUvmInterfaceCopyEngineAllocate [ 548.197567] nvidia_uvm: Unknown symbol nvUvmInterfaceCopyEngineAllocate (err -22) [ 548.197572] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceDestroy [ 548.197573] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceDestroy (err -22) [ 548.197578] nvidia_uvm: no symbol version for nvUvmInterfaceRegisterUvmCallbacks [ 548.197579] nvidia_uvm: Unknown symbol nvUvmInterfaceRegisterUvmCallbacks (err -22) [ 548.197583] nvidia_uvm: no symbol version for nvUvmInterfaceGetGpuArch [ 548.197584] nvidia_uvm: Unknown symbol nvUvmInterfaceGetGpuArch (err -22) [ 548.197589] nvidia_uvm: no symbol version for nvUvmInterfaceChannelAllocate [ 548.197590] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelAllocate (err -22) [ 548.197596] nvidia_uvm: no symbol version for nvUvmInterfaceDupAllocation [ 548.197597] nvidia_uvm: Unknown symbol nvUvmInterfaceDupAllocation (err -22) [ 548.197604] nvidia_uvm: no symbol version for nvUvmInterfaceSessionCreate [ 548.197605] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionCreate (err -22) [ 550.908745] nvidia_uvm: no symbol version for nvUvmInterfaceChannelDestroy [ 550.908749] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelDestroy (err -22) [ 550.908758] nvidia_uvm: no symbol version for nvUvmInterfaceQueryCaps [ 550.908759] nvidia_uvm: Unknown symbol nvUvmInterfaceQueryCaps (err -22) [ 550.908771] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryAllocSys [ 550.908772] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryAllocSys (err -22) [ 550.908778] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuMap [ 550.908779] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuMap (err -22) [ 550.908786] nvidia_uvm: no symbol version for nvUvmInterfaceKillChannel [ 550.908787] nvidia_uvm: Unknown symbol nvUvmInterfaceKillChannel (err -22) [ 550.908795] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryCpuUnMap [ 550.908796] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryCpuUnMap (err -22) [ 550.908804] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreateMirrored [ 550.908805] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreateMirrored (err -22) [ 550.908835] nvidia_uvm: no symbol version for nvUvmInterfaceServiceDeviceInterruptsRM [ 550.908836] nvidia_uvm: Unknown symbol nvUvmInterfaceServiceDeviceInterruptsRM (err -22) [ 550.908843] nvidia_uvm: no symbol version for nvUvmInterfaceDeRegisterUvmOps [ 550.908844] nvidia_uvm: Unknown symbol nvUvmInterfaceDeRegisterUvmOps (err -22) [ 550.908851] nvidia_uvm: no symbol version for nvUvmInterfaceMemoryFree [ 550.908851] nvidia_uvm: Unknown symbol nvUvmInterfaceMemoryFree (err -22) [ 550.908858] nvidia_uvm: no symbol version for nvUvmInterfaceGetUvmPrivRegion [ 550.908859] nvidia_uvm: Unknown symbol nvUvmInterfaceGetUvmPrivRegion (err -22) [ 550.908867] nvidia_uvm: no symbol version for nvUvmInterfaceGetAttachedUuids [ 550.908868] nvidia_uvm: Unknown symbol nvUvmInterfaceGetAttachedUuids (err -22) [ 550.908877] nvidia_uvm: no symbol version for nvUvmInterfaceSessionDestroy [ 550.908878] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionDestroy (err -22) [ 550.908885] nvidia_uvm: no symbol version for nvUvmInterfaceCheckEccErrorSlowpath [ 550.908886] nvidia_uvm: Unknown symbol nvUvmInterfaceCheckEccErrorSlowpath (err -22) [ 550.908892] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceCreate [ 550.908893] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceCreate (err -22) [ 550.908900] nvidia_uvm: no symbol version for nvUvmInterfaceCopyEngineAllocate [ 550.908901] nvidia_uvm: Unknown symbol nvUvmInterfaceCopyEngineAllocate (err -22) [ 550.908907] nvidia_uvm: no symbol version for nvUvmInterfaceAddressSpaceDestroy [ 550.908908] nvidia_uvm: Unknown symbol nvUvmInterfaceAddressSpaceDestroy (err -22) [ 550.908915] nvidia_uvm: no symbol version for nvUvmInterfaceRegisterUvmCallbacks [ 550.908916] nvidia_uvm: Unknown symbol nvUvmInterfaceRegisterUvmCallbacks (err -22) [ 550.908922] nvidia_uvm: no symbol version for nvUvmInterfaceGetGpuArch [ 550.908923] nvidia_uvm: Unknown symbol nvUvmInterfaceGetGpuArch (err -22) [ 550.908930] nvidia_uvm: no symbol version for nvUvmInterfaceChannelAllocate [ 550.908931] nvidia_uvm: Unknown symbol nvUvmInterfaceChannelAllocate (err -22) [ 550.908940] nvidia_uvm: no symbol version for nvUvmInterfaceDupAllocation [ 550.908941] nvidia_uvm: Unknown symbol nvUvmInterfaceDupAllocation (err -22) [ 550.908950] nvidia_uvm: no symbol version for nvUvmInterfaceSessionCreate [ 550.908951] nvidia_uvm: Unknown symbol nvUvmInterfaceSessionCreate (err -22) -- Pascal Obry / Magny Les Hameaux (78) The best way to travel is by means of imagination http://v2p.fr.eu.org http://www.obry.net gpg --keyserver keys.gnupg.net --recv-key F949BD3B
