Date: 13 May 2005 09:15:53 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: Ewald Jenisch <a@jenisch.at> Cc: freebsd-questions@freebsd.org Subject: Re: Tracking down "kern.ipc.maxpipekva exceeded" Message-ID: <444qd7z2pi.fsf@be-well.ilk.org> In-Reply-To: <20050512085147.GA2114@aurora.oekb.co.at>
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Ewald Jenisch <a@jenisch.at> writes: > Hi, > > For some time one of my machines in plaged be becoming completely > unresponsive after different amounts of time (several hours up to > several days). > > Symptoms: > Machine is PINGable, but no access over the network is possible > (neither ssh-login nor http-access). > > /var/log/messages: > May 11 12:11:00 io kernel: kern.ipc.maxpipekva exceeded; see tuning(7) > maxproc limit exceeded by uid 0, please see tuning(7) and login.conf(5). > (tons of both) > and finally > May 11 12:42:03 io kernel: maxproc > May 11 12:42:03 io kernel: limit exceede > May 11 12:42:03 io kernel: d by uid > May 11 12:42:03 io kernel: 0, ple > May 11 12:42:03 io kernel: se see tun > May 11 12:42:03 io kernel: ng(7) and l > May 11 12:42:03 io kernel: ogin.conf > May 11 12:42:03 io kernel: (5). > May 11 12:42:03 io kernel: > > >From that time on I can't log in any more, not even from the console. > > When rebooting the box via ctl-alt-del, before shutdown, it fails to > sync buffers on shutdown (counts down to 1 and stays there) and > finally gives up - requiring an fsck on reboot. > > Please note that the box does *not* crash completely, nor do I get a > kernel panic though. > > The system is running "5.4-STABLE FreeBSD 5.4-STABLE #0: Sat Apr 16 > 10:19:26 CEST 2005" but this problem has been there since I first > installed 5.3 on the box. > > So my primary question is: > > How do I track down the cause of the problem, i.e. which > program/process is responsible for "kern.ipc.maxpipekva" to be > exceeded? I would suggest keeping an eye on kern.ipc.pipekva and trying to correlate any changes to the activity on the system at the time.home | help
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