From owner-freebsd-bugs  Wed Jan 23  0:50: 9 2002
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Date: Wed, 23 Jan 2002 00:50:01 -0800 (PST)
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Cc: 
From: Maxim Konovalov <maxim@macomnet.ru>
Subject: Re: misc/34195: setting the action for SIGCHLD to SIG_IGN will create
 zombies
Reply-To: Maxim Konovalov <maxim@macomnet.ru>
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The following reply was made to PR misc/34195; it has been noted by GNATS.

From: Maxim Konovalov <maxim@macomnet.ru>
To: Ali Imran <ai32@drexel.edu>
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: misc/34195: setting the action for SIGCHLD to SIG_IGN will create
 zombies
Date: Wed, 23 Jan 2002 11:42:11 +0300 (MSK)

 Hello,
 
 [...]
 > >Description:
 > Single UNIX Specification Version 2 states that:
 > ..
 > If the action for the SIGCHLD signal is set
 > to SIG_IGN, child processes of the calling
 > processes will not be transformed into zombie
 > processes when they terminate. If the calling
 > ..
 > However FreeBSD creates zombies.
 >
 > I don't know if this is "traditional" BSD
 > beahvior and considered a "feature" and not
 > a bug.
 
 Yes, it is a traditional BSD way.
 
 JFYI, there was an attempt to commit the SIGCHLD SIG_IGN signal
 handlin code, it was MFCed to -stable and then backed out from -stable
 and -current. Please take a look at
 
 http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/kern/kern_exit.c
 
 for more details.
 
 -- 
 Maxim Konovalov, MAcomnet, Internet-Intranet Dept., system engineer
 phone: +7 (095) 796-9079, mailto: maxim@macomnet.ru
 
 

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