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| author | Ludovic Courtès <ludo@gnu.org> | 2017-08-28 09:54:03 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2017-08-28 09:56:33 +0200 |
| commit | 7f090203d5fb033eb1b64778b03afad5bb35f5f2 (patch) | |
| tree | 7c979b613c059c60eaafb75806bb362ae5947483 /gnu/services/base.scm | |
| parent | 06b8eae3d101b9c1f237de34f21091e085390e11 (diff) | |
| download | guix-7f090203d5fb033eb1b64778b03afad5bb35f5f2.tar guix-7f090203d5fb033eb1b64778b03afad5bb35f5f2.tar.gz | |
services: user-processes: Reap child processes.
Fixes <http://bugs.gnu.org/26931>.
Reported by Leo Famulari <leo@famulari.name>.
* gnu/services/base.scm (user-processes-service-type)[stop]: Add
'reap-children' loop.
* gnu/tests/base.scm (run-halt-test): New procedure.
(%test-halt): New variable.
Diffstat (limited to 'gnu/services/base.scm')
| -rw-r--r-- | gnu/services/base.scm | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gnu/services/base.scm b/gnu/services/base.scm index 54bd9ca2fb..5001298ab3 100644 --- a/gnu/services/base.scm +++ b/gnu/services/base.scm @@ -456,6 +456,19 @@ in KNOWN-MOUNT-POINTS when it is stopped." (delete-file #$%do-not-kill-file))) (let wait () + ;; Reap children, if any, so that we don't end up with + ;; zombies and enter an infinite loop. + (let reap-children () + (define result + (false-if-exception + (waitpid WAIT_ANY (if (null? omitted-pids) + 0 + WNOHANG)))) + + (when (and (pair? result) + (not (zero? (car result)))) + (reap-children))) + (let ((pids (processes))) (unless (lset= = pids (cons 1 omitted-pids)) (format #t "waiting for process termination\ |