origin version
nano@nano-desktop:~/code/sequor_vfm_deploy (dev)$ dpkg -l | grep nvidia-jetpack
ii nvidia-jetpack 6.2.1+b38 arm64 NVIDIA Jetpack Meta Package
ii nvidia-jetpack-dev 6.2.1+b38 arm64 NVIDIA Jetpack dev Meta Package
ii nvidia-jetpack-runtime 6.2.1+b38 arm64 NVIDIA Jetpack runtime Meta Package
nano@nano-desktop:~$ head -n1 /etc/nv_tegra_release
# R36 (release), REVISION: 4.7, GCID: 42132812, BOARD: generic, EABI: aarch64, DATE: Thu Sep 18 22:54:44 UTC 2025This guide provides step-by-step instructions to apply the kernel fix for addressing the CUDA buffer issue on a native Jetson Orin Nano setup.
Download source
public_sources.tbz2 https://developer.nvidia.com/downloads/embedded/l4t/r36_release_v4.4/sources/public_sources.tbz2
Changes: (please unzip the files to *.diff files) 7959247.diff.zip (1.7 KB) a94ca4c.diff.zip (1.2 KB) b27a1a7.diff.zip (1.5 KB) cfe6242.diff.zip (3.3 KB) e488812.diff.zip (2.0 KB)
Step 1: Verify Jetson Linux Version head -n1 /etc/nv_tegra_release
Must show:
R36 (release), REVISION: 4.x
This procedure is only for r36.4.x.
Step 2: Check Disk, RAM & Swap (IMPORTANT) Disk df -h /
Ensure ≥ 30 GB free
RAM & Swap free -h
If swap < 8 GB, create 16 GB swap:
sudo swapoff -a sudo rm -f /swapfile sudo fallocate -l 16G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile echo ‘/swapfile none swap sw 0 0’ | sudo tee -a /etc/fstab
Step 3: Install Required Build Dependencies sudo apt update sudo apt install -y build-essential bc flex bison libssl-dev libncurses-dev libelf-dev git rsync
Step 4: Download & Extract Kernel Sources
mkdir -p ~/jetson-kernel-fix cd ~/jetson-kernel-fix
Download public_sources.tbz2 matching your exact r36.4.x release.
Extract:
tar xf public_sources.tbz2 tar xf aarch64–glibc–stable-2022.08-1.tar.bz2 cd Linux_for_Tegra/source tar xf kernel_src.tbz2 tar xf kernel_oot_modules_src.tbz2 tar xf nvidia_kernel_display_driver_source.tbz2
Apply patches Kernel patch:
cd ~/jetson-kernel-fix/Linux_for_Tegra/source/kernel/kernel-jammy-src patch -p1 < ~/jetson-kernel-fix/a94ca4c.diff
NVIDIA OOT module patches (order matters):
cd ~/jetson-kernel-fix/Linux_for_Tegra/source/nvidia-oot
patch -p1 < ~/jetson-kernel-fix/cfe6242.diff patch -p1 < ~/jetson-kernel-fix/e488812.diff patch -p1 < ~/jetson-kernel-fix/b27a1a7.diff patch -p1 < ~/jetson-kernel-fix/7959247.diff
Before you run: make sure the .diff files exist
If you only have *.diff.zip, unzip them like this:
cd ~/jetson-kernel-fix for f in *.diff.zip; do unzip -o “$f”; done
Then run:
ls -lh ~/jetson-kernel-fix/*.diff
if you re run accidentally you can see below msg:
Reversed (or previously applied) patch detected! Assume -R? [n]
This means the changes from a94ca4c.diff are ALREADY PRESENT in your kernel source.
Correct response
When prompted:
Assume -R? [n]
Press Enter (keep n)
This safely skips it.
4.1 Build kernel
cd ~/jetson-kernel-fix/Linux_for_Tegra/source make -C kernel -j$(nproc)
4.2 Install modules + kernel image (keep a backup) Backup your current kernel image first:
sudo cp /boot/Image /boot/Image.backup.$(date +%F)
Install modules + copy Image:
sudo make install -C kernel sudo cp kernel/kernel-jammy-src/arch/arm64/boot/Image /boot/Image
Step 5: Build & install NVIDIA OOT modules
cd ~/jetson-kernel-fix/Linux_for_Tegra/source export KERNEL_HEADERS=$PWD/kernel/kernel-jammy-src
make modules -j$(nproc) sudo make modules_install
Step 6: Update initramfs + reboot
sudo update-initramfs -u sudo reboot
Step 7: After reboot: verify CUDA stability uname -r
verify: ashwin-saravanan@ashwin-saravanan:~$ uname -r 5.15.148-tegra
now run ollama without any error: ollama run phi3:mini
Step 8: Finally hold the update untill official release comes:
sudo apt-mark hold nvidia-l4t-display-kernel nvidia-l4t-kernel nvidia-l4t-kernel-dtbs nvidia-l4t-kernel-headers nvidia-l4t-kernel-oot-headers nvidia-l4t-kernel-oot-modules