diff options
| -rw-r--r-- | gnu/services/base.scm | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/gnu/services/base.scm b/gnu/services/base.scm index 402f5991a5..3a4be44330 100644 --- a/gnu/services/base.scm +++ b/gnu/services/base.scm @@ -193,7 +193,7 @@ in KNOWN-MOUNT-POINTS when it is stopped." ;; the system. Typical example is user-space file systems. "/etc/dmd/do-not-kill") -(define* (user-processes-service requirements #:key (grace-delay 5)) +(define* (user-processes-service requirements #:key (grace-delay 4)) "Return the service that is responsible for terminating all the processes so that the root file system can be re-mounted read-only, just before rebooting/halting. Processes still running GRACE-DELAY seconds after SIGTERM @@ -230,6 +230,18 @@ stopped before 'kill' is called." (@ (ice-9 rdelim) read-string)))) '())) + (define (now) + (car (gettimeofday))) + + (define (sleep* n) + ;; Really sleep N seconds. + ;; Work around <http://bugs.gnu.org/19581>. + (define start (now)) + (let loop ((elapsed 0)) + (when (> n elapsed) + (sleep (- n elapsed)) + (loop (- (now) start))))) + (define lset= (@ (srfi srfi-1) lset=)) (display "sending all processes the TERM signal\n") @@ -238,7 +250,7 @@ stopped before 'kill' is called." (begin ;; Easy: terminate all of them. (kill -1 SIGTERM) - (sleep #$grace-delay) + (sleep* #$grace-delay) (kill -1 SIGKILL)) (begin ;; Kill them all except OMITTED-PIDS. XXX: We @@ -246,7 +258,7 @@ stopped before 'kill' is called." ;; list of processes, like 'killall5' does, but ;; that seems unreliable. (kill-except omitted-pids SIGTERM) - (sleep #$grace-delay) + (sleep* #$grace-delay) (kill-except omitted-pids SIGKILL) (delete-file #$%do-not-kill-file))) @@ -256,7 +268,7 @@ stopped before 'kill' is called." (format #t "waiting for process termination\ (processes left: ~s)~%" pids) - (sleep 2) + (sleep* 2) (wait)))) (display "all processes have been terminated\n") |