From: Pavel Machek <pavel@suse.cz>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bulent Abali <abali@us.ibm.com>,
"Dirk W. Steinberg" <dws@dirksteinberg.de>,
Ingo Oeser <ingo.oeser@informatik.tu-chemnitz.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: Swapping for diskless nodes
Date: Sat, 11 Aug 2001 01:13:29 +0000 [thread overview]
Message-ID: <20010811011329.C55@toy.ucw.cz> (raw)
In-Reply-To: <E15UrUl-0007Rn-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Thu, Aug 09, 2001 at 04:13:11PM +0100
Hi
> > Last time I checked swapping over nbd required patching the network stack.
> > Because swapping occurs when memory is low and when memory is low TCP
> > doesn't do what you expect it to do...
>
> Its a case of having sufficient memory in the atomic pools. Its possible to
> do some ugly quick kernel hack to make the pool commit less likely to be a
> problem.
>
> Ultimately its an insoluble problem, neither SunOS, Solaris or NetBSD are
> infallible, they just never fail for any normal situation, and thats good
> enough for me as a solution
Oops, really? And if I can DoS such machine with ping -f (to eat atomic
ram)? And what are you going to tel your users? "It died so reboot"?
Pavel
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next prev parent reply other threads:[~2001-08-11 1:13 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-09 14:26 Bulent Abali
2001-08-09 15:13 ` Alan Cox
2001-08-09 20:57 ` Rik van Riel
2001-08-09 22:46 ` Alan Cox
2001-08-11 1:16 ` Pavel Machek
2001-08-11 1:13 ` Pavel Machek [this message]
2001-08-14 12:57 ` Alan Cox
2001-08-16 21:46 ` Pavel Machek
2001-08-17 0:46 ` Rik van Riel
2001-08-17 1:35 ` Jakob Østergaard
2001-08-17 21:23 ` Pavel Machek
2001-08-17 6:42 ` Andreas Haumer
2001-08-17 21:25 ` Pavel Machek
2001-08-17 21:03 ` Andreas Haumer
2001-08-17 22:31 ` Dirk W. Steinberg
[not found] <no.id>
[not found] ` <E15Ulnx-0006zZ-00@the-village.bc.nu>
2001-08-09 10:50 ` Ingo Oeser
2001-08-09 13:12 ` Dirk W. Steinberg
2001-08-09 20:47 ` Rik van Riel
2001-08-09 15:19 ` Alan Cox
2001-08-09 17:09 ` Eric W. Biederman
2001-08-09 20:58 ` Rik van Riel
2001-08-10 8:11 ` Eric W. Biederman
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