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From: Alex Efros <powerman@powerman.asdfGroup.com>
Newsgroups: gmane.comp.sysutils.supervision.general
Subject: Re: runit not collecting zombies
Date: Sat, 15 Sep 2007 19:02:21 +0300
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Hi!

On Sat, Sep 15, 2007 at 11:47:02AM -0400, Charlie Brady wrote:
> Yes, runit should reap that status, but that doesn't change the fact that 
> ssh is wrong. Note also that SIGCHLD is delivered to sshd process, not to 
> runit, because 14926 terminates before 14925.
>
> IMO this is a bug in the privilege separation code in openssh.

Yep. But this isn't ssh maillist, and I'm not worry much about this ssh bug.
I'm worry about zombies. Using this bug as my chance to fix all software over
the world which may generate zombies is cool idea, but I've no time for this.

Right now, I take another server, also fresh Gentoo installation, without
any load, which has 2 day 23 hours uptime and NO zombies. And run this:

    perl -e '$i=1000; $i-- || exit while fork(); sleep 1'

And I got 1000 unreaped zombies.

I've reboot this server. And run this again, again and again:

    perl -e '$i=1000; $i-- || exit while fork(); sleep 1'
    perl -e '$i=1000; $i-- || exit while fork(); sleep 1'
    for i in $(seq 1 100); do perl -e '$i=1000; $i-- || exit while fork(); sleep 1'; done
    for i in $(seq 1 100); do perl -e '$i=1000; $i-- || exit while fork(); sleep 1'; sleep 1; done

No effect. All zombies was reaped by runit. Probably I should try to run
this every hour... :( maybe this experiment give us additional information.

-- 
			WBR, Alex.