Xaiver NX failed to start nvpmodel service

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
#1

Hi,
I disabled some kernel config from tegra_defconfig file,rebuilt and applied kernel Image，I got error “Failed to start nvpmodel service”.
I want to know which kernel config can cause this issue? I checked tegra_defconfig and found CONFIG_NVPMODEL_EMC is set to y.

Thanks.

#2

add

nvidia@nvidia:~ sudo nvpmodel -m 2 NVPM WARN: patching tpc_pg_mask: (0x1:0x4) NVPM WARN: patched tpc_pg_mask: 0x4 NVPM ERROR: Error opening /sys/devices/gpu.0/tpc_pg_mask: 2 NVPM ERROR: optMask is 1, no request for power mode nvidia@nvidia:~
nvidia@nvidia:~$ sudo nvpmodel -q
NV Fan Mode:quiet
NV Power Mode: MODE_10W_2CORE
3
NVPM ERROR: Error opening /sys/devices/gpu.0/tpc_pg_mask: 2
NVPM ERROR: failed to read PARAM TPC_POWER_GATING: ARG TPC_PG_MASK: PATH /sys/devices/gpu.0/tpc_pg_mask
NVPM ERROR: Error opening /sys/devices/gpu.0/power/control: 2
NVPM ERROR: failed to read PARAM GPU_POWER_CONTROL_ENABLE: ARG GPU_PWR_CNTL_EN: PATH /sys/devices/gpu.0/power/control
NVPM ERROR: Error opening /sys/devices/17000000.gv11b/devfreq/17000000.gv11b/min_freq: 2
NVPM ERROR: failed to read PARAM GPU: ARG MIN_FREQ: PATH /sys/devices/17000000.gv11b/devfreq/17000000.gv11b/min_freq
NVPM ERROR: Error opening /sys/devices/17000000.gv11b/devfreq/17000000.gv11b/max_freq: 2
NVPM ERROR: failed to read PARAM GPU: ARG MAX_FREQ: PATH /sys/devices/17000000.gv11b/devfreq/17000000.gv11b/max_freq
NVPM ERROR: Error opening /sys/devices/gpu.0/power/control: 2
NVPM ERROR: failed to read PARAM GPU_POWER_CONTROL_DISABLE: ARG GPU_PWR_CNTL_DIS: PATH /sys/devices/gpu.0/power/control

#4

  1. Could you tell us what change do you make to tegra_defconfig?

  2. Are you able to see these nodes which report error on your device?

#5

Sorry WayneWWW，
tegra_defconfig is not the reason to nvpmodel issue，I use the default tegra_defconfig NX still failed to start nvpmodel service. and thers is no gpu.0 under sys/devices/.
How to debug this issue?

Thanks.

#6

Does command “lsmod” give you a result with nvgpu?

#7

Does command “lsmod” give you a result with nvgpu?
No,lsmod return without nvgpu.
What is nvgpu module’s name? nvgpu.ko?

#8

What is the result of uname -r?

#9

4.9.140-tegra

#10

That sounds weird. What is the result of “sudo modprobe nvgpu”?

1 Like
#11

Hello,

Any feedback for this? I saw you press the solution but I don’t get your result.

#12

nvgpu.ko is not insmod.

1 Like
#13

But did you figure out why it is not automatically loaded? In our default jetpack release, such error should not happen.

#14

yes, nvgpu works fine in default jetpack release.
The reason is I have not compress the nvgpu.ko to kernel_supplements.tbz2.

1 Like
#15

Ok. Glad to hear you find the cause.