Go: qtcreater prompt ptrace not allowed when debugging (click Debug 40 seconds after gdb no response)

1. Description of the problem

• With Qtcreater set up a pure C + + project, but in F5 debugging, unexpectedly prompted Ptrace not allow the operation, modify the project configuration for debug also no matter, after online search, originally also need to modify the system Ptrace configuration.

2. Workaround

• A temporary solution

$ sudo echo 0 >/proc/sys/kernel/yama/ptrace_scope

• This way, but after restarting the computer and then back to the original appearance, once and for all:

$ sudo vi/etc/sysctl.d/10-ptrace.conf

$ kernel.yama.ptrace_scope = 0

It's good to restart the computer.

• This problem is said to occur after Ubuntu 11.04, which seems to be for security

Go: qtcreater prompt ptrace not allowed when debugging (click Debug 40 seconds after gdb no response)