Date: Mon, 11 Oct 1999 14:20:08 -0700 From: Mike Smith <mike@smith.net.au> To: Andy Farkas <andyf@speednet.com.au> Cc: Mike Smith <mike@smith.net.au>, Chris Costello <chris@calldei.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: aio_read kills machine Message-ID: <199910112120.OAA02032@dingo.cdrom.com> In-Reply-To: Your message of "Tue, 12 Oct 1999 07:22:47 %2B1000." <Pine.BSF.4.10.9910120720450.3838-100000@localhost>
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>
> On Mon, 11 Oct 1999, Mike Smith wrote:
>
> > > Running ``nmap -sP 172.22.0.0/16'' as a normal user will cause a panic on
> > > a recent 3.3-STABLE system :(
> >
> > Could you be any less specific about the panic? Any sort of detail is
> > just going to make us want to fix it.
>
> Here most of the message I posted to -stable:
Oh, that one. You need to increase maxusers or NMBCLUSTERS. This is
the subject of ongoing work in -current that ought to make it back to
-stable eventually.
> ----snip----
> *From andyf@speednet.com.au Tue Oct 12 07:20:08 1999
> Date: Mon, 27 Sep 1999 19:43:21 +1000 (EST)
> To: freebsd-stable@FreeBSD.ORG
> Subject: nmap V. 2.3BETA5 causes panic
>
> The system will panic with an 'out of mbufs' message when I run the above
> nmap command ("ping scan" a class B subnet - my internal IP network).
>
> Should this be happening when run as a normal user?? The kernel is pretty
> stock with maxusers 32, no NMBCLUSTERS option, unneeded devices removed.
> There is 64M RAM and 256M swap; it is has dual 90MHz P54C's.
>
> This system (my workstation) is a:
> FreeBSD 3.3-STABLE #0: Mon Sep 20 09:44:35 EST 1999
>
> I am:
> bash-2.03$ id
> uid=1000(andyf) gid=1000(andyf) groups=1000(andyf), 0(wheel)
>
> I have:
> bash-2.03$ limits
> Resource limits (current):
> cputime infinity secs
> filesize 1048576 kb
> datasize 65536 kb
> stacksize 8192 kb
> coredumpsize 131072 kb
> memoryuse 65536 kb
> memorylocked 8192 kb
> maxprocesses 256
> openfiles 256
>
> I use:
> bash-2.03$
>
> How would you go about preventing this problem?
>
> Thanks.
> ----snip----
>
> >
> > --
> > \\ 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
> >
> >
>
> --
>
> :{ andyf@speednet.com.au
>
> Andy Farkas
> System Administrator
> Speednet Communications
> http://www.speednet.com.au/
>
>
>
>
>
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--
\\ 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
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