From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyril Hrubis Date: Thu, 18 Aug 2016 12:48:06 +0200 Subject: [LTP] [PATCH 8/8] waitpid08: test stopped children In-Reply-To: <57B58A00.7060707@oracle.com> References: <1470818466-28109-2-git-send-email-stanislav.kholmanskikh@oracle.com> <1470818466-28109-3-git-send-email-stanislav.kholmanskikh@oracle.com> <1470818466-28109-4-git-send-email-stanislav.kholmanskikh@oracle.com> <1470818466-28109-5-git-send-email-stanislav.kholmanskikh@oracle.com> <1470818466-28109-6-git-send-email-stanislav.kholmanskikh@oracle.com> <1470818466-28109-7-git-send-email-stanislav.kholmanskikh@oracle.com> <1470818466-28109-8-git-send-email-stanislav.kholmanskikh@oracle.com> <1470818466-28109-9-git-send-email-stanislav.kholmanskikh@oracle.com> <20160816130316.GA25540@rei.lan> <57B58A00.7060707@oracle.com> Message-ID: <20160818104805.GB24254@rei.lan> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it Hi! > No-no, this should not happen, since reap_children() handles stopped > children this way: > > for (;;) { > pid = waitpid(); > > if (pid is a pid of a stopped task) { > kill(pid, SIGCONT); > continue; > } > > <...> > } > > i.e. it makes all the stopped children continue. > > So there should not be any children in 'pgroup' after > reap_children(pgroup) has finished. > > This SIGSTOP-related code is added by the previous patch in the series > (waitpid13). Ah, missed that, sorry. It probably should have been in a separate patch. -- Cyril Hrubis chrubis@suse.cz