From owner-freebsd-net@FreeBSD.ORG Fri May 16 07:53:56 2003 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2A17837B404; Fri, 16 May 2003 07:53:56 -0700 (PDT) Received: from magellan.palisadesys.com (magellan.palisadesys.com [192.188.162.211]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1429E43FAF; Fri, 16 May 2003 07:53:54 -0700 (PDT) (envelope-from ghelmer@palisadesys.com) Received: from mira (mira.palisadesys.com [192.188.162.116]) (authenticated bits=0)h4GErr3r095220 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO); Fri, 16 May 2003 09:53:53 -0500 (CDT) (envelope-from ghelmer@palisadesys.com) From: "Guy Helmer" To: , Date: Fri, 16 May 2003 09:54:11 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal Subject: Resolved, was RE: Intel Pro/1000 82540 Ethernet, was RE: SuperMicro X5DEI-GG X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 May 2003 14:53:56 -0000 (Apology for the crosspost - I queried both smp and net) On May 15, 2003 5:00 PM I wrote: > Originally I wrote to smp@freebsd.org: > > Has anyone had positive or negative experience with the > > SuperMicro X5DEI-GG > > dual-Xeon motherboard? It seems to work OK on a uniprocessor kernel, but > > FreeBSD 4.8 SMP kernels lock up after the "mounting root" message or after > > ifconfiging lo0 in the startup scripts. Our first machine may just be > > flaky, so I'll try another one as soon as possible... > > I seem to have isolated the problems with SMP on this machine to the > built-in Intel Pro/1000 (82540) Ethernet interfaces. The machine *nearly* > freezes after ifconfig is run during startup. It can respond to > the keyboard > (accepting characters) the first few times I unplug/plug the > Ethernet cable > from em0 and cause link down/up messages on the console. This > only works a few > times before the keyboard becomes completely unresponsive. I've > tried a 4.8-RELEASE > and a 4.9-STABLE kernel cvsuped today. Any suggestions would be > appreciated. It turned to be a timer problem. The SMP kernel didn't seem to be receiving timer interrupts. I removed the apm device from my kernel config, and now the kernel reports: APIC_IO: Testing 8254 interrupt delivery APIC_IO: Broken MP table detected: 8254 is not connected to IOAPIC #0 intpin 2 APIC_IO: routing 8254 via 8259 and IOAPIC #0 intpin 0 and now it works fine. Thanks to pdeuskar for a suggestion regarding if_em that allowed me to boot the machine to the point where I could diagnose the real problem. Guy