claw.7c1758 Registering with the S/390® debug feature failed with error code <errno>
Explanation
The Common Link Access to Workstation (CLAW) device driver failed to register with the S/390 debug feature. No debug traces will be available for CLAW.
User response
Enter 'lsmod | grep dbf' or an equivalent command to check if the S/390 debug feature loaded. If the output does not show the dbf module, the S/390 debug feature has not been loaded, unload the CLAW device driver, load the debug feature, then reload the CLAW device driver. See the errno man page for information about the error code.