Date: Sun, 22 Jun 2014 11:14:22 -0700 From: Adrian Chadd <adrian@freebsd.org> To: noc@hostelnet.ru Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: FreeBSD 9 as PPPoE BRAS(mpd 5.7) kernel panic Message-ID: <CAJ-Vmo=5YuSybyJMQtv6PUwXAGWyAxzvAZs4SgZyKwYS9aDMCw@mail.gmail.com> In-Reply-To: <53A719C3.3040002@hostelnet.ru> References: <53A719C3.3040002@hostelnet.ru>
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They're NULL pointer derferences, so it's likely a race condition with some other thread destroying something and setting the pointer value to NULL somewhere. I thought this was a reasonably well known problem? Was it ever fixed in 10/head? -a On 22 June 2014 11:00, Alex Ros <noc@hostelnet.ru> wrote: > Hello. > We have a problem with FreeBSD 9 stable (currently on r267070) as PPPoE BRAS > by mpd 5.7. Server catches 1-3 kernel panics every month. > Two last core.txt's: > http://pkg.hostelnet.ru/pub/dump/core.txt.7.txt (r262224) > and > http://pkg.hostelnet.ru/pub/dump/core.txt.8.txt (r267070) > Now trying to test hint with mpd-down script from similar trhread: > http://lists.freebsd.org/pipermail/freebsd-net/2014-June/038952.html > Hardware: HP DL360 with Intel 82571EB nic. > Average load on server: 150-300 Mbit/s and around 150 users. > FreeBSD configuration: > running on GENERIC kernel > IPFW with few rules (no dummynet, no nat) > routing via OSPF (quagga) > > cat /boot/loader.conf > net.isr.maxthreads=2 > net.isr.numthreads=2 > net.graph.maxdata=65536 > net.graph.maxalloc=65536 > net.isr.defaultqlimit=4096 > net.link.ifqmaxlen=10240 > > cat /etc/sysctl.conf > net.inet.ip.fastforwarding=1 > net.inet.ip.redirect=0 > kern.random.sys.harvest.ethernet=0 > kern.random.sys.harvest.point_to_point=0 > kern.random.sys.harvest.interrupt=0 > net.inet.raw.maxdgram=16384 > net.inet.raw.recvspace=16384 > net.inet.ip.intr_queue_maxlen=10240 > net.route.netisr_maxqlen=4096 > > Maybe someone can help to understand: it is a configuration error or a bug > MPD/netgraph? > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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