Gentoo Archives: gentoo-user

From: tuxic@××××××.de
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: "No CUDA device found" with nvidia-drivers newer than nvidia-drivers-396.24-r1(
Date: Wed, 15 Aug 2018 15:12:11
Message-Id: 20180815151148.fkk3donqiedpqswl@solfire
In Reply to: Re: [gentoo-user] Re: "No CUDA device found" with nvidia-drivers newer than nvidia-drivers-396.24-r1( by "Corentin “Nado” Pazdera"
1 On 08/15 02:32, Corentin “Nado” Pazdera wrote:
2 > August 15, 2018 2:59 PM, tuxic@××××××.de wrote:
3 >
4 > > Yes I did reboot the sustem. In my initial mail I mentioned a tool
5 > > called CUDA-Z and Blender, which both reports a missing CUDA device.
6 >
7 > Ok, so you do not have a specific error which might have been thrown by the module?
8 > 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?
9 > Could you also run /opt/cuda/extras/demo_suite/deviceQuery (from nvidia-cuda-toolkit) and show its output?
10 >
11 > My installation works, so at least we know their version is not completely broken...
12 > Driver version: 396.51
13 > Cuda version: 9.2.88
14 >
15 > --
16 > Corentin “Nado” Pazdera
17 >
18
19 I compiled the new version of the driver again and rebooted the
20 system.
21
22 # dmesg | grep -i nvidia:
23
24 [ 11.375631] nvidia_drm: module license 'MIT' taints kernel.
25 [ 12.313260] nvidia-nvlink: Nvlink Core is being initialized, major device number 246
26 [ 12.313586] nvidia 0000:07:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem
27 [ 12.313691] nvidia 0000:02:00.0: enabling device (0000 -> 0003)
28 [ 12.313737] nvidia 0000:02:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none
29 [ 12.313826] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 396.51 Tue Jul 31 10:43:06 PDT 2018 (using threaded interrupts)
30 [ 12.491106] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:0b.0/0000:02:00.1/sound/card2/input9
31 [ 12.492291] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:0b.0/0000:02:00.1/sound/card2/input10
32 [ 12.493772] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:02.0/0000:07:00.1/sound/card1/input11
33 [ 12.494605] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:02.0/0000:07:00.1/sound/card1/input12
34 [ 13.963644] caller _nv001112rm+0xe3/0x1d0 [nvidia] mapping multiple BARs
35 [ 34.236553] caller _nv001112rm+0xe3/0x1d0 [nvidia] mapping multiple BARs
36 [ 34.516495] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 396.51 Tue Jul 31 14:52:09 PDT 2018
37
38 # modprobe -a nvidia-uvm
39
40 # dmesg | grep uvm
41
42 [ 209.441956] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 245
43
44
45 # /opt/cuda/extras/demo_suite/deviceQuery
46 /opt/cuda/extras/demo_suite/deviceQuery Starting...
47
48 CUDA Device Query (Runtime API) version (CUDART static linking)
49
50 cudaGetDeviceCount returned 30
51 -> unknown error
52 Result = FAIL
53 [1] 5086 exit 1 /opt/cuda/extras/demo_suite/deviceQuery
54
55 CUDA-Z shows also "no CUDA device"
56
57 # modinfo nvidia-uvm
58 filename: /lib/modules/4.18.0-RT/video/nvidia-uvm.ko
59 supported: external
60 license: MIT
61 depends: nvidia
62 name: nvidia_uvm
63 vermagic: 4.18.0-RT SMP preempt mod_unload
64 parm: uvm_perf_prefetch_enable:uint
65 parm: uvm_perf_prefetch_threshold:uint
66 parm: uvm_perf_prefetch_min_faults:uint
67 parm: uvm_perf_thrashing_enable:uint
68 parm: uvm_perf_thrashing_threshold:uint
69 parm: uvm_perf_thrashing_pin_threshold:uint
70 parm: uvm_perf_thrashing_lapse_usec:uint
71 parm: uvm_perf_thrashing_nap_usec:uint
72 parm: uvm_perf_thrashing_epoch_msec:uint
73 parm: uvm_perf_thrashing_max_resets:uint
74 parm: uvm_perf_thrashing_pin_msec:uint
75 parm: uvm_perf_map_remote_on_native_atomics_fault:uint
76 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)
77 parm: uvm_global_oversubscription:Enable (1) or disable (0) global oversubscription support. (int)
78 parm: uvm_leak_checker:Enable uvm memory leak checking. 0 = disabled, 1 = count total bytes allocated and freed, 2 = per-allocation origin tracking. (int)
79 parm: uvm_force_prefetch_fault_support:uint
80 parm: uvm_debug_enable_push_desc:Enable push description tracking (int)
81 parm: uvm_page_table_location:Set the location for UVM-allocated page tables. Choices are: vid, sys. (charp)
82 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)
83 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)
84 parm: uvm_perf_access_counter_batch_count:uint
85 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)
86 parm: uvm_perf_access_counter_threshold:Number of remote accesses on a region required to trigger a notification.Valid values: [1, 65535] (uint)
87 parm: uvm_perf_reenable_prefetch_faults_lapse_msec:uint
88 parm: uvm_perf_fault_batch_count:uint
89 parm: uvm_perf_fault_replay_policy:uint
90 parm: uvm_perf_fault_replay_update_put_ratio:uint
91 parm: uvm_perf_fault_max_batches_per_service:uint
92 parm: uvm_perf_fault_max_throttle_per_service:uint
93 parm: uvm_perf_fault_coalesce:uint
94 parm: uvm_fault_force_sysmem:Force (1) using sysmem storage for pages that faulted. Default: 0. (int)
95 parm: uvm_perf_map_remote_on_eviction:int
96 parm: uvm_channel_num_gpfifo_entries:uint
97 parm: uvm_channel_gpfifo_loc:charp
98 parm: uvm_channel_gpput_loc:charp
99 parm: uvm_channel_pushbuffer_loc:charp
100 parm: uvm_enable_debug_procfs:Enable debug procfs entries in /proc/driver/nvidia-uvm (int)
101 parm: uvm8_ats_mode:Override the default ATS (Address Translation Services) UVM mode by disabling (0) or enabling (1) (int)
102 parm: uvm_driver_mode:Set the uvm kernel driver mode. Choices include: 8 (charp)
103 parm: uvm_debug_prints:Enable uvm debug prints. (int)
104 parm: uvm_enable_builtin_tests:Enable the UVM built-in tests. (This is a security risk) (int)
105
106
107 # ls -l /lib/modules/4.18.0-RT/video/nvidia-uvm.ko
108 -rw-r--r-- 1 root root 1405808 Aug 15 16:49 /lib/modules/4.18.0-RT/video/nvidia-uvm.ko
109 (just installed minytes before)
110
111 # uname -a
112 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
113 (the kernel version matches)
114
115 # eix nvidia-cuda-toolkit
116
117 [I] dev-util/nvidia-cuda-toolkit
118 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}
119 Installed versions: 9.2.88(0/9.2.88)(06:31:32 PM 08/14/2018)(-debugger -doc -eclipse -profiler)
120 Homepage: https://developer.nvidia.com/cuda-zone
121 Description: NVIDIA CUDA Toolkit (compiler and friends)
122
123
124
125 It becomes even more weird...

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