question:Attaching to process 10144 Could not attach to process. If your uid matches the uid of the target process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf ptrace: Operation not permitted.

answer:

You can temporarily disable this restriction (and revert to the old behaviour allowing your user to ptrace (gdb) any of their other processes) by doing:

echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope

To permanently allow it edit /etc/sysctl.d/10-ptrace.conf and change the line:

kernel.yama.ptrace_scope = 1

To read

kernel.yama.ptrace_scope = 0