From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [2.6.15] running tcpdump on 3c905b causes freeze (reproducable) Date: Sat, 14 Jan 2006 06:04:57 -0800 Message-ID: <20060114060457.06efae88.akpm@osdl.org> References: <20060108114305.GA32425@vanheusden.com> <20060109041114.6e797a9b.akpm@osdl.org> <20060109144522.GB10955@vanheusden.com> <20060109193754.GD12673@vanheusden.com> <20060109224821.7a40bc69.akpm@osdl.org> <20060110142725.GH12673@vanheusden.com> <20060114132414.GN6087@vanheusden.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: To: Folkert van Heusden In-Reply-To: <20060114132414.GN6087@vanheusden.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Folkert van Heusden wrote: > > > > > > > Have you tried enabling the NMI watchdog? Enable CONFIG_X86_LOCAL_APIC and > > > > > > boot with `nmi_watchdog=1' on the command line, make sure that the NMI line > > > > > > of /proc/interrupts is incrementing. > > > > > I'll give it a try. I've added it to the append-line in the lilo config. > > > > > Am now compiling the kernel. > > > > No change. Well, that is: the last message on the console now is > > > > "setting eth1 to promiscues mode". > > > Did you confirm that the NMI counters in /proc/interrupts are incrementing? > > Yes: > > root@muur:/home/folkert# for i in `seq 1 5` ; do cat /proc/interrupts | grep NMI ; sleep 1 ; done > > NMI: 6949080 6949067 > > NMI: 6949182 6949169 > > NMI: 6949284 6949271 > > NMI: 6949386 6949373 > > NMI: 6949488 6949475 > > Is there anything else I can try? argh. I haven't forgotten. Hopefully after -rc1 I'll have more time... Your report didn't mention whether that card work OK under earlier 2.6 kernels. If it does, a bit of bisection searching would really help.