Bug 453050 – net-proxy/squid-3.1.22: {restart,stop} init script gives ERROR: Could not send signal 15 to process XXXX: (1) Operation not permitted

• Product: Gentoo Linux
• Status: RESOLVED INVALID

[Description Markos Chandras (RETIRED) 2013-01-19 22:35:54 UTC]

blade-vm hwoarang # /etc/init.d/squid restart
 * Stopping squid ...
squid: ERROR: Could not send signal 15 to process 2489: (1) Operation not permitted
 * Squid shutdown failed, probably service is already down.               [ ok ]
 * Starting squid ...    

Even running /etc/init.d/squid stop does not work. The process is still running

[Comment 1 Eray Aslan 2013-01-20 15:34:10 UTC]

Anything funny when you run squid -X -k shutdown on your console?

Also please check your cache_effective_user directive in squid.conf and check which user id your Squid process is running under.

[Comment 2 Markos Chandras (RETIRED) 2013-01-23 20:00:55 UTC]

(In reply to comment #1)
> Anything funny when you run squid -X -k shutdown on your console?
> 
> Also please check your cache_effective_user directive in squid.conf and
> check which user id your Squid process is running under.

When running -X -k shutdown I get this

...
2013/01/23 21:59:49.514| Setting CA certificate locations.
2013/01/23 21:59:49.514| Not requiring any client certificates
2013/01/23 21:59:49.514| leave_suid: PID 16106 called
2013/01/23 21:59:49.514| leave_suid: PID 16106 giving up root, becoming 'nobody'
2013/01/23 21:59:49.514| command-line -X overrides: ALL,1
squid: ERROR: Could not send signal 15 to process 2489: (1) Operation not permitted

cache_effective_user is set to "nobody" and squid is running as root (using the init script)

[Comment 3 Markos Chandras (RETIRED) 2013-01-27 14:45:47 UTC]

Fixed by swithing the cache_effective_user from "nobody" to "squid". It should have been a permission problem on my side.