Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 27 Dec 1999 22:22:26 -0800
From:      Mike Smith <msmith@freebsd.org>
To:        "Mr. K." <bsd@inbox.org>
Cc:        Mike Smith <msmith@freebsd.org>, stable@freebsd.org
Subject:   Re: panic 
Message-ID:  <199912280622.WAA01190@mass.cdrom.com>
In-Reply-To: Your message of "Mon, 27 Dec 1999 23:32:18 EST." <Pine.BSF.3.96.991227232526.22754C-100000@inbox.org> 

next in thread | previous in thread | raw e-mail | index | archive | help
> > > Totally untweaked kernel.  I didn't get to tweaking yet.  I shouldn't have
> > > to tweak anything to make the kernel not panic, though...  Not
> > > complaining, just pre-empting possible flames.
> > 
> > That's completely incorrect.
> > 
> > > Is this a known problem?  Yes, I should enable crash dumps, I'm going to
> > > go look for documentation on that now...
> > 
> > You might just try watching the console when the system goes over.  
> > GENERIC is tuned to work well on a wide range of configurations, not to 
> > be pounded to death.  Try setting NMBCLUSTERS to something around 10000.
> > 
> 
> Ran to the machine as soon as I realized what happened, but unfortunately,
> too late.
> 
> I was not root when this happened, so, basically, you're saying that
> freebsd is not meant for a production environment where untrusted users
> have telnet access?

No.  As I specifically said, the GENERIC kernel configuration is tuned 
for 'generic' operations.  There are a small number of well-known and 
well-documented tuning options that need to be adjusted to accommodate 
the sort of extreme load situations you're encountering.

You might want to think, just for a moment, why FreeBSD is in such wide 
use if the assumptions you're making are true.  And since it is, perhaps 
you should re-evaluate them?

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  msmith@freebsd.org
\\ and he'll hate you for a lifetime.             \\  msmith@cdrom.com




To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199912280622.WAA01190>