Date: Fri, 14 Mar 2008 04:47:18 -0300 From: AT Matik <asstec@matik.com.br> To: freebsd-ipfw@freebsd.org Cc: Wade Klaver <wadeklaver@itiva.com> Subject: Re: On the trail of a dummynet/bridge/ipfw bug. Message-ID: <200803140447.18646.asstec@matik.com.br> In-Reply-To: <1205442400.4349.18.camel@wade-linux.itiva.com> References: <1205343184.4032.44.camel@wade-linux.itiva.com> <200803131441.36597.asstec@matik.com.br> <1205442400.4349.18.camel@wade-linux.itiva.com>
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On Thursday 13 March 2008 18:06:40 Wade Klaver wrote: > OK, here's something weird then. ipfw pipe show | wc -l has reported > higher numbers: > [root@ibm3550b ~]# ipfw pipe show | wc -l > 3453 > This was reported after the bridge "died" attempting 2600 simultaneous > connections... it had been running at 2400 before I added 200 more. > Now, immediately after the above crash, I do a /etc/rc.d/netif restart, > and then: > [root@ibm3550b ~]# ipfw pipe show | wc -l > 3900 > Then as long as I add additional connections very slowly, I can manage > to get more established until it dies at 2800 with: > [root@ibm3550b ~]# ipfw pipe show | wc -l > 4160 > At this point I am only using these numbers as a general indication of > pipe activity as the output is not 1 pipe per line. In fact there is > more often than not two lines per pipe. However, the end problem > remains the same. After a point, the bridge doesn't get saturated, it > crashes and requires that the network be restarted before continuing. > The fact that it is necessary only to restart the network and not to > flush ipfw's pipes (which has no effect without a network restart) > perhaps suggests the problem lies in a different subsystem? The > broadcom driver perhaps? hard to say because you do not tell so very much about your machine, it mig= ht=20 be too weak for so many pipes (mem or cpu?), I do not know your setup or th= e=20 nics you use you say it crash but can restart the network? probably you have some error = in=20 your script or since you run bridge some mac issue? =2D-=20 Participe no BAIXO ASSINADO SCM: http://info.matik.com.br =2D- Atenciosamente, J.M. Respons=E1vel Plant=E3o Site Support Matik Infomatik Internet Technology (18)3551.8155 =A0(18)8112.7007 A mensagem foi scaneada pelo sistema de e-mail e pode ser considerada segura. Service fornecido pelo Datacenter Matik https://datacenter.matik.com.br
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