Also check dmesg for PCI resource allocation issues:
For those writing custom UIO code, always handle missing IP addresses gracefully – return a clear error message and fallback to PCI ID-based addressing where possible. This will save hours of debugging for future users of your system. Also check dmesg for PCI resource allocation issues:
#SBATCH --memlock=unlimited # In SLURM If you control the source code, look for uio_create_address . A typical implementation might look like: A typical implementation might look like: If you’ve
If you’ve encountered this error, you likely saw it in a system log, a batch job output (like SLURM or PBS), or a custom embedded application that crashed unexpectedly. The job aborted, and the culprit points to a failure while trying to create a memory address mapping from an IP address and network link. look for uio_create_address .
ip link show ethtool -i eth0 # Replace with your interface Then check which driver is bound:
echo 'KERNEL=="uio*", SUBSYSTEM=="uio", MODE="0660", GROUP="plugdev"' > /etc/udev/rules.d/50-uio.rules udevadm control --reload-rules udevadm trigger If the error persists, trace the UIO kernel path:
sudo modprobe uio sudo modprobe uio_pci_generic # or igb_uio from DPDK Find the PCI address of your NIC: