Gary-Hobson commented on PR #18116:
URL: https://github.com/apache/nuttx/pull/18116#issuecomment-3788684551
> @cederom I think Ctrl+C will break only the last job sent to background:
>
> ```
> $ gedit &
> [1] 104015
>
> $ top &
> [2] 104029
> $ ^C
>
> [2]+ Stopped top
> $
> ```
>
> In fact this is a good improvement, we just need to guarantee that it is
doing the right thing.
>
> @Gary-Hobson please test sending two process to background and test to
confirm it will only terminate the last one.
The current code doesn't terminate any background processes, and as I see
it, terminating background processes probably isn't a good idea.
Below are the steps for my test:
1. Modify the code in hello_main.c:
```c
int main(int argc, FAR char *argv[])
{
printf("Hello, World!!\n");
sleep(30);
return 0;
}
```
2. Configure and compile the project:
```sh
./tools/configure.sh mps2-an500/nsh
make menuconfig
# Add the following two configurations:
CONFIG_SIG_DEFAULT=y
CONFIG_TTY_SIGINT=y
make -j
```
Run the test on QEMU:
```sh
qemu-system-arm -M mps2-an500 -cpu cortex-m7 -nographic -kernel ./nuttx
nsh> hello
press Ctrl+C
nxtask_exit: hello pid=3,TCB=0x60007410
nsh>
```
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