Issue #2349 has been reported by Matthias Rampke. ---------------------------------------- Bug #2349: fork() after signal(SIGCHLD, SIG_IGN) produces zombies http://bugs.dragonflybsd.org/issues/2349
Author: Matthias Rampke Status: New Priority: Normal Assignee: Category: Target version: The code in the attached zombifier.c makes every exiting child into a zombie on master[1]. This doesn't happen on any non-DragonFly system I could test it on, and from what I gather from this discussion[2] and what Wikipedia says about SUSv3/POSIX-1.2001 the correct behaviour is not to keep them around if the SIGCHLD handler is explicitly set to SIG_IGN. This has realworldly bitten me because the FCGI-to-CGI-wrapper I use[4] relies on this behaviour and I couldn't SSH into my server as a non-root user due to PID exhaustion. [1] DragonFly zz.2pktfkt.net 3.1-DEVELOPMENT DragonFly v3.1.0.545.g4c42b-DEVELOPMENT #6: Tue Apr 17 21:24:31 CEST 2012 matth...@zz.2pktfkt.net:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64 [2] http://markmail.org/message/3s4jj7dpgw34yvmh [3] http://en.wikipedia.org/wiki/Zombie_process [4] http://pkgsrc.se/wip/fcgiwrap -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account
