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>
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[-- Attachment #1 --] 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. > > It's a typo, should be: > > 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 > > > - 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 tried > to build a port .... O_o > > 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 -- 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/ ================ An eclectic mix of fact and theory. ================= [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iEYEARECAAYFAkEQwPsACgkQXVIcjOaxUBbbkgCgq57opq7NXhcDNYOmkkzWXKvj +qsAoIKdRcg3DSv47C6dAsnl8asDNxjJ =Jg0r -----END PGP SIGNATURE-----home | help
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