Date: Wed, 4 Aug 2004 11:57:00 +0100 From: Josef Karthauser <joe@FreeBSD.org> To: Dick Davies <rasputnik@hellooperator.net> Cc: FreeBSD Current list <freebsd-current@freebsd.org> Subject: Re: kern.maxpipekva exceeded, please see tuning(7). Message-ID: <20040804105700.GF5782@genius.tao.org.uk> In-Reply-To: <20040804095212.GC13269@lb.tenfour> References: <20040804091722.GB5782@genius.tao.org.uk> <20040804095212.GC13269@lb.tenfour>
next in thread | previous in thread | raw e-mail | index | archive | help
--Y1L3PTX8QE8cb2T+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Aug 04, 2004 at 10:52:12AM +0100, Dick Davies wrote: > * Josef Karthauser <joe@FreeBSD.org> [0818 10:18]: > > I've got a 5.2.x machine which has hung and is giving the message > > 'kern.maxpipekva exceeded, please see tuning(7)' on the console > > whenever anyone tries to open a tcp connect to it. Does anyone > > know what this tweakable is about and what might cause it to be > > "exceeded"? The machine has been running fine for 6 months. >=20 > It's a typo, should be: >=20 > root@eris samba3 # sysctl -a|grep kva > kern.ipc.maxpipekva: 8359936 > kern.ipc.maxpipekvawired: 4177920 > kern.ipc.pipekva: 262144 > kern.ipc.pipekvawired: 0 > vfs.buffreekvacnt: 0 >=20 >=20 > - when I had this a oouple of weeks back (on 5.2 release) it was because > I'd borked my make.conf so I effectively forkbombed the box everytime I t= ried > to build a port .... O_o >=20 > any chance you changed something similar in your networking? > (maybe a loop in your NAT rules or something?) The problem appears to be caused by a failing disk returning DMA errors in swap space. What probably happened is that the tcp connections stacked up and blew the alloted space. Joe --=20 Josef Karthauser (joe@tao.org.uk) http://www.josef-k.net/ FreeBSD (cvs meister, admin and hacker) http://www.uk.FreeBSD.org/ Physics Particle Theory (student) http://www.pact.cpes.sussex.ac.uk/ =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D An eclectic mix of fact an= d theory. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --Y1L3PTX8QE8cb2T+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iEYEARECAAYFAkEQwPsACgkQXVIcjOaxUBbbkgCgq57opq7NXhcDNYOmkkzWXKvj +qsAoIKdRcg3DSv47C6dAsnl8asDNxjJ =Jg0r -----END PGP SIGNATURE----- --Y1L3PTX8QE8cb2T+--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040804105700.GF5782>