From: Edgar Toernig <froese@gmx.de>
Date: Tue, 20 Jun 2006 16:09:21 GMT
Subject: Re: [Q] what to do when waitpid() returns ECHILD under signal(SIGCHLD, SIG_IGN)?
Message-ID: <20060620180921.7bc1cb6c.froese@gmx.de>
In-Reply-To: <7vwtbc7ll6.fsf@assigned-by-dhcp.cox.net>

Junio C Hamano wrote:
>
> Somebody I met last week in Japan reported that the socks client
> he uses to cross the firewall to connect to git:// port from his
> company environment seems to do signal(SIGCHLD, SIG_IGN) before
> spawning git.

Similar problems occasionally happen with SIGPIPE.  There are apps[1]
that spawn processes with SIGPIPE set to SIG_IGN giving unexpected
results, i.e. child processes that still try to produce output
(getting EPIPE on every printf, but who checks printf errors?) even
if the pipe-reader (e.g. their parent) is long gone.

Ciao, ET.

[1] i.e. KDE had this bug - don't know if it's still there.