Date: Wed, 25 Nov 2009 09:14:38 -0800 From: Julian Elischer <julian@elischer.org> To: ticso@cicely.de Cc: Rui Paulo <rpaulo@gmail.com>, Attilio Rao <attilio@freebsd.org>, gnn@freebsd.org, FreeBSD Arch <arch@freebsd.org> Subject: Re: [PATCH] Protect inetd and cron from being killed under high-pressure swapping Message-ID: <4B0D65FE.9020603@elischer.org> In-Reply-To: <20091125144208.GZ20716@cicely7.cicely.de> References: <3bbf2fe10911160702m3641b65cv15ac2942cbb023fd@mail.gmail.com> <7i8we5xlbm.wl%gnn@neville-neil.com> <30DCA579-53AD-49EA-A5A2-5A0796A285C1@gmail.com> <20091120062637.GA49534@server.vk2pj.dyndns.org> <20091125144208.GZ20716@cicely7.cicely.de>
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Bernd Walter wrote: > On Fri, Nov 20, 2009 at 05:26:37PM +1100, Peter Jeremy wrote: >> On 2009-Nov-17 21:35:34 +0000, Rui Paulo <rpaulo@gmail.com> wrote: >>>> At Mon, 16 Nov 2009 16:02:08 +0100, >>>> Attilio Rao wrote: >>>>> This simple patch protects inetd and cron from being killed under >>>>> high-pressure swapping systems: >>>>> http://www.freebsd.org/~attilio/Sandvine/STABLE_8/madvised/madvised.diff >>> Yes, the idea is good, but should we really trust inetd and crond that much ? >>> Are there other daemons that do this? >> As an alternative approach, how about placing a wrapper process around >> them which will restart them if they die? init(8) unofficially provides >> this (I've used it in the past) - maybe we should formalise this. > > init(8) is nice, but not an option within jails. we are considering whether a jail should have its own init... >
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