"dpgk-l-working.txt" is the system where /dev/shm is a symlink to /run/shm. "dpgk-l-failing.txt" is the system where /dev/shm is a directory.
"dpgk-l- working. txt" is the system where /dev/shm is a symlink to /run/shm. "dpgk-l- failing. txt" is the system where /dev/shm is a directory.