Re: [gentoo-user] Re: "No CUDA device found" with nvidia-drivers newer than nvidia-drivers-396.24-r1(

I put nvidia-uvm explictly into /etc/conf.d/modules - which was not
necessary ever before....and it shows the same problems: No cuda
devices.

I think I will dream this night of no cuda devices... ;(


On 08/15 05:11, tuxic@××××××.de wrote:
> On 08/15 02:32, Corentin “Nado” Pazdera wrote:
> > August 15, 2018 2:59 PM, tuxic@××××××.de wrote:
> >
> > > Yes I did reboot the sustem. In my initial mail I mentioned a tool
> > > called CUDA-Z and Blender, which both reports a missing CUDA device.
> >
> > Ok, so you do not have a specific error which might have been thrown by the module?
> > Other ideas, check dev-util/nvidia-cuda-toolkit version and double check nvidia/nvidia_uvm with modinfo to ensure they are installed and loaded correctly with the right version?
> > Could you also run /opt/cuda/extras/demo_suite/deviceQuery (from nvidia-cuda-toolkit) and show its output?
> >
> > My installation works, so at least we know their version is not completely broken...
> > Driver version: 396.51
> > Cuda version: 9.2.88
> >
> > --
> > Corentin “Nado” Pazdera
> >
>
> I compiled the new version of the driver again and rebooted the
> system.
>
> # dmesg | grep -i nvidia:
>
> [   11.375631] nvidia_drm: module license 'MIT' taints kernel.
> [   12.313260] nvidia-nvlink: Nvlink Core is being initialized, major device number 246
> [   12.313586] nvidia 0000:07:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem
> [   12.313691] nvidia 0000:02:00.0: enabling device (0000 -> 0003)
> [   12.313737] nvidia 0000:02:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none
> [   12.313826] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  396.51  Tue Jul 31 10:43:06 PDT 2018 (using threaded interrupts)
> [   12.491106] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:0b.0/0000:02:00.1/sound/card2/input9
> [   12.492291] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:0b.0/0000:02:00.1/sound/card2/input10
> [   12.493772] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:02.0/0000:07:00.1/sound/card1/input11
> [   12.494605] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:02.0/0000:07:00.1/sound/card1/input12
> [   13.963644] caller _nv001112rm+0xe3/0x1d0 [nvidia] mapping multiple BARs
> [   34.236553] caller _nv001112rm+0xe3/0x1d0 [nvidia] mapping multiple BARs
> [   34.516495] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms  396.51  Tue Jul 31 14:52:09 PDT 2018
>
> # modprobe -a nvidia-uvm
>
> # dmesg | grep uvm
>
> [  209.441956] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 245
>
>
> # /opt/cuda/extras/demo_suite/deviceQuery
> /opt/cuda/extras/demo_suite/deviceQuery Starting...
>
>  CUDA Device Query (Runtime API) version (CUDART static linking)
>
> cudaGetDeviceCount returned 30
> -> unknown error
> Result = FAIL
> [1]    5086 exit 1     /opt/cuda/extras/demo_suite/deviceQuery
>
> CUDA-Z shows also "no CUDA device"
>
> # modinfo nvidia-uvm
> filename:       /lib/modules/4.18.0-RT/video/nvidia-uvm.ko
> supported:      external
> license:        MIT
> depends:        nvidia
> name:           nvidia_uvm
> vermagic:       4.18.0-RT SMP preempt mod_unload
> parm:           uvm_perf_prefetch_enable:uint
> parm:           uvm_perf_prefetch_threshold:uint
> parm:           uvm_perf_prefetch_min_faults:uint
> parm:           uvm_perf_thrashing_enable:uint
> parm:           uvm_perf_thrashing_threshold:uint
> parm:           uvm_perf_thrashing_pin_threshold:uint
> parm:           uvm_perf_thrashing_lapse_usec:uint
> parm:           uvm_perf_thrashing_nap_usec:uint
> parm:           uvm_perf_thrashing_epoch_msec:uint
> parm:           uvm_perf_thrashing_max_resets:uint
> parm:           uvm_perf_thrashing_pin_msec:uint
> parm:           uvm_perf_map_remote_on_native_atomics_fault:uint
> parm:           uvm_hmm:Enable (1) or disable (0) HMM mode. Default: 0. Ignored if CONFIG_HMM is not set, or if NEXT settings conflict with HMM. (int)
> parm:           uvm_global_oversubscription:Enable (1) or disable (0) global oversubscription support. (int)
> parm:           uvm_leak_checker:Enable uvm memory leak checking. 0 = disabled, 1 = count total bytes allocated and freed, 2 = per-allocation origin tracking. (int)
> parm:           uvm_force_prefetch_fault_support:uint
> parm:           uvm_debug_enable_push_desc:Enable push description tracking (int)
> parm:           uvm_page_table_location:Set the location for UVM-allocated page tables. Choices are: vid, sys. (charp)
> parm:           uvm_perf_access_counter_mimc_migration_enable:Whether MIMC access counters will trigger migrations.Valid values: <= -1 (default policy), 0 (off), >= 1 (on) (int)
> parm:           uvm_perf_access_counter_momc_migration_enable:Whether MOMC access counters will trigger migrations.Valid values: <= -1 (default policy), 0 (off), >= 1 (on) (int)
> parm:           uvm_perf_access_counter_batch_count:uint
> parm:           uvm_perf_access_counter_granularity:Size of the physical memory region tracked by each counter. Valid values asof Volta: 64k, 2m, 16m, 16g (charp)
> parm:           uvm_perf_access_counter_threshold:Number of remote accesses on a region required to trigger a notification.Valid values: [1, 65535] (uint)
> parm:           uvm_perf_reenable_prefetch_faults_lapse_msec:uint
> parm:           uvm_perf_fault_batch_count:uint
> parm:           uvm_perf_fault_replay_policy:uint
> parm:           uvm_perf_fault_replay_update_put_ratio:uint
> parm:           uvm_perf_fault_max_batches_per_service:uint
> parm:           uvm_perf_fault_max_throttle_per_service:uint
> parm:           uvm_perf_fault_coalesce:uint
> parm:           uvm_fault_force_sysmem:Force (1) using sysmem storage for pages that faulted. Default: 0. (int)
> parm:           uvm_perf_map_remote_on_eviction:int
> parm:           uvm_channel_num_gpfifo_entries:uint
> parm:           uvm_channel_gpfifo_loc:charp
> parm:           uvm_channel_gpput_loc:charp
> parm:           uvm_channel_pushbuffer_loc:charp
> parm:           uvm_enable_debug_procfs:Enable debug procfs entries in /proc/driver/nvidia-uvm (int)
> parm:           uvm8_ats_mode:Override the default ATS (Address Translation Services) UVM mode by disabling (0) or enabling (1) (int)
> parm:           uvm_driver_mode:Set the uvm kernel driver mode. Choices include: 8 (charp)
> parm:           uvm_debug_prints:Enable uvm debug prints. (int)
> parm:           uvm_enable_builtin_tests:Enable the UVM built-in tests. (This is a security risk) (int)
>
>
> # ls -l /lib/modules/4.18.0-RT/video/nvidia-uvm.ko
> -rw-r--r-- 1 root root 1405808 Aug 15 16:49 /lib/modules/4.18.0-RT/video/nvidia-uvm.ko
> (just installed minytes before)
>
> # uname -a
> Linux solfire 4.18.0-RT #1 SMP PREEMPT Mon Aug 13 05:15:26 CEST 2018 x86_64 AMD Phenom(tm) II X6 1090T Processor AuthenticAMD GNU/Linux
> (the kernel version matches)
>
> # eix nvidia-cuda-toolkit
>
> [I] dev-util/nvidia-cuda-toolkit
>      Available versions:  [M](~)6.5.14(0/6.5.14) [M](~)6.5.19-r1(0/6.5.19) [M](~)7.5.18-r2(0/7.5.18) [M](~)8.0.44(0/8.0.44) [M](~)8.0.61(0/8.0.61) (~)9.0.176(0/9.0.176) (~)9.1.85(0/9.1.85) (~)9.2.88(0/9.2.88) {debugger doc eclipse profiler}
>      Installed versions:  9.2.88(0/9.2.88)(06:31:32 PM 08/14/2018)(-debugger -doc -eclipse -profiler)
>      Homepage:            https://developer.nvidia.com/cuda-zone
>      Description:         NVIDIA CUDA Toolkit (compiler and friends)
>
>
>
> It becomes even more weird...
>
>
>