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From: Alex Efros <powerman@powerman.name>
To: supervision@list.skarnet.org
Subject: Re: runit-1.8.0 available
Date: Sat, 20 Oct 2007 22:59:50 +0300	[thread overview]
Message-ID: <20071020195950.GB25023@home.power> (raw)
In-Reply-To: <20071016033818.GE18461@run.duo>

Hi!

On Mon, Oct 15, 2007 at 11:38:18PM -0400, George Georgalis wrote:
> This thread(s) is so long it's become difficult to follow. Maybe
> you could consolidate the important details into a summary. What
> is the simplest way to reproduce the problem. What has been tried?
> What factors are determined not related. What hypothesis, if any,
> for resolution?

Only known to me way to reproduce the problem - install new Gentoo server
and wait for about a week to see sshd zombies (as result of ssh-worms
trying to bruteforce ssh from time to time).

Tried? I tried to switch from runit-init to sysvinit, and this solved issue.
Also Gerrit suggested a workaround: running 'chmod -x /etc/runit/stopit;
kill -CONT 1' on system with unreaped zombies result in two things: first
all zombies are reaped, and second runit start reaping zombies again...
but after several days it stop reaping zombies again and we need to
chmod/kill again.

Not related... there several factors determined not related (like
grsecurity kernel patches), but that was while I wasn't sure this is bug
in runit.

Mostly strange thing is this happens as least for two people, at same time
after Gentoo upgrade. And that upgrade doesn't touch runit or toolchain -
nothing in this upgrade seems suspicious.

Only hypothesis I've - this issue related to date/time: it usually happens
at same time on all my servers (and looks like this related to global
date/time, and not to server uptime), and it usually repeats every 5-7 days.

I think easies way to solve this issue - if Gerrit provide test/debug
version of runit to me, which for example output it state/actions into log
file, and then he'll analyse that log file to find out what is going wrong.
Because looks like he unable to find this bug by just looking at the code.

-- 
			WBR, Alex.


  reply	other threads:[~2007-10-20 19:59 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-21 11:12 Gerrit Pape
2007-09-21 12:30 ` Alex Efros
2007-09-22 14:37 ` Alex Efros
2007-09-24 10:19   ` Gerrit Pape
2007-09-24 13:35     ` Alex Efros
2007-09-26 13:46     ` Alex Efros
2007-09-29 13:00       ` Alex Efros
2007-09-29 13:03       ` Alex Efros
2007-09-29 13:21         ` Alex Efros
2007-10-06  5:49         ` Alex Efros
2007-10-11 12:53           ` Gerrit Pape
2007-10-13 17:30             ` Alex Efros
2007-10-20 11:24               ` Alex Efros
2007-10-13 21:27           ` Alex Efros
2007-10-16  3:38             ` George Georgalis
2007-10-20 19:59               ` Alex Efros [this message]
2007-10-20 22:11                 ` George Georgalis
2007-10-20 22:20                   ` Alex Efros
2007-10-22 22:17                     ` Vincent Danen
2007-10-24  3:52                     ` George Georgalis

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