Date: Sun, 6 Mar 2005 19:14:22 +0100 From: Jeremie Le Hen <jeremie@le-hen.org> To: Julian Elischer <julian@elischer.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_sig.c Message-ID: <20050306181422.GD74191@obiwan.tataz.chchile.org> In-Reply-To: <422A9B53.8080504@elischer.org> References: <4226446B.7020406@freebsd.org> <61ac46c154aa515a692308440dd1141d@FreeBSD.org> <422710DD.1070203@freebsd.org> <422719E0.10703@samsco.org> <42279B6D.1000005@freebsd.org> <20050304182629.GA39457@VARK.MIT.EDU> <4228AB27.3020204@samsco.org> <4228B504.7000302@elischer.org> <20050305154248.GF15329@obiwan.tataz.chchile.org> <422A9B53.8080504@elischer.org>
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Hi Julian, On Sat, Mar 05, 2005 at 09:55:31PM -0800, Julian Elischer wrote: > Jeremie Le Hen wrote: > >>for a start I'd like to add a sysctl to turn off swapping out kernel > >>stacks.. > >>then if someone had a reproducible or atleast 'common" problem, > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > >>we could suggest turning it off to see > >>if it fixes the problem.. that would be a big smoking gun.. > > > > > >If I understand correctly, the problem with swapping is that it's > >highly non-deterministic. Therefore having kthread swapping disabled > >would not tell us whether the bug is really avoided or if we are just > >fortunate enough to not trigger it. I think I didn't explained myself correctly. In fact, I was simply wondering how a swap related bug could be reproducible. Regards, -- Jeremie Le Hen jeremie at le-hen dot org
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