The Permission Error

If you see this error when attaching the GDB to a process:

ptrace: Operation not permitted.

The Solution

1. (Temporarily, sudo required) run echo "0"|sudo tee /proc/sys/kernel/yama/ptrace_scope
2. (Permanently, sudo required) editing the file /etc/sysctl.d/10-ptrace.conf and change the line: kernel.yama.ptrace_scope = 1 to kernel.yama.ptrace_scope = 0

References

• https://stackoverflow.com/questions/19215177/how-to-solve-ptrace-operation-not-permitted-when-trying-to-attach-gdb-to-a-pro
• https://unix.stackexchange.com/questions/329504/proc-sys-kernel-yama-ptrace-scope-keeps-resetting-to-1