alpine stop does not delete PID file, so alpine list reports stopped VM as "Running"

[maxzinkus]

When running alpine stop:

cmd/stop.go:24 calls host/stop.go:8 which in turn calls qemu/ops.go:166.

However, none of these delete the alpine.pid file which they check for. Therefore, the alpine CLI displays the status of the stopped incorrectly VM as Running.

Easy fix, just delete the file if it exists after a successful stop in whichever of these locations makes the most sense. Likely either qemu/ops.go or host/stop.go.

[maxzinkus]

It may also behoove you to add a -f "force" stop option which sends sigkill instead of sigterm.

[maxzinkus]

Closing this issue because it stopped happening. I'm not sure why it stopped because nothing in macpine is set to delete the PID file. Does qemu delete the PID file when the process is termd?

[jdriselvato]

I'm having this now happen to me. I exited the vm, did alpine stop simplistic-background and still see it running

$ alpine list
NAME                      OS         STATUS      SSH    PORTS          ARCH       PID       
simplistic-background     alpine     Running     22     5900,30000     x86_64     63090   

The weird thing is, now ssh hangs.

edit:

Additionally, I ran

$ killall -9 alpine
[1]+  Killed: 9               alpine start simplistic-background

and it's still running:

$ alpine list
NAME                      OS         STATUS      SSH    PORTS          ARCH       PID       
simplistic-background     alpine     Running     22     5900,30000     x86_64     63090

then run

$ alpine stop simplistic-background
2023/02/28 19:48:09 os: process already finished

but list still shows it running.

[maxzinkus]

This is a qemu thing. alpine stop your VMs, pgrep qemu-system to make sure none are running, rm ~/.macpine/simplistic-background/alpine.pid to clean up the old PIDfile, and you should be good to go.

[jdriselvato]

That worked, I'll have to save those commands for later.

alias killalpine="pgrep qemu-system; rm ~/.macpine/simplistic-background/alpine.pid

Thanks for letting me know.

[maxzinkus]

pgrep string just lists any running process IDs whose name matches string. The important part was the rm, and that was specific to your vm name simplistic-background. ~/.macpine contains one folder per VM, each with its name.