ip link show ethtool -i eth0 # Replace with your interface Then check which driver is bound:
INTERFACE=$(ip -o link | grep "00:11:22:33:44:55" | awk -F': ' 'print $2') IP_ADDR=$(ip -4 addr show $INTERFACE | grep -oP '(?<=inet\s)\d+(\.\d+)3') Then pass $IP_ADDR and $INTERFACE to your application. In embedded systems, the UIO device may not have been created in /dev due to missing udev rules.
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: ip link show ethtool -i eth0 # Replace
sudo modprobe rt_e1000e sleep 2 sudo rt_ifconfig eth0 up 192.168.1.10 If the job runs on compute nodes that have different NIC names than the head node:
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. The job aborted, and the culprit points to
Also check dmesg for PCI resource allocation issues:
lspci -vvs 02:00.0 | grep "Kernel driver" # Use actual PCI id If it shows a kernel driver (e.g., ixgbe ), unbind it and bind to UIO: The job aborted
ip addr show ping -I eth0 <gateway> # Confirm interface works getent ahosts <your_ip> If the IP is missing or the link is down, fix networking first. UIO mapping often fails with EPERM if memory lock limits are too low: