From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: PCI interrupt problem: e1000 & Super-Micro X6DVA motherboard Date: Wed, 23 Mar 2005 19:22:58 -0800 Message-ID: <42423292.60701@candelatech.com> References: <42421FF2.7050501@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "'netdev@oss.sgi.com'" , linux-kernel In-Reply-To: <42421FF2.7050501@candelatech.com> Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Ben Greear wrote: > I'm having a strange problem. I have an X6DVA motherboard > with dual 2.8Ghz emt-64 processors, 1GB of RAM, SATA HD, etc. > I tried kernel 2.6.11 which uses irq 26, and 2.6.10-1.770_FC2smp, which > maps the irq to 209 or something like that. Distribution is FC2, x86. > Kernel is compiled for x86-SMP as well. > > I suspect that this may be a hardware issue of some sort, but if anyone > has any suggestions as to how to debug this further, please do let > me know. I'm attaching the lspci and dmesg output in case that helps. I am now less certain: I tried with a separate but similar machine, and eth3 still has bad interrupt test. I tried 2.6.9 kernel, same problem. I tried 2.4.29 kernel (on FC2 distribution), and the same problem exists. I tried with pci=noacpi, and this just messes up everything (irqs are disabled, etc). Could this be a bug in the motherboard implementation? Off to try some different combinations of NIC hardware... Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com