From owner-freebsd-stable@FreeBSD.ORG Tue Sep 20 20:35:27 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3F60816A41F for ; Tue, 20 Sep 2005 20:35:27 +0000 (GMT) (envelope-from smartweb@leadhill.net) Received: from natco3.natcotech.com (natco3.natcotech.com [205.167.142.103]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3E7C743D46 for ; Tue, 20 Sep 2005 20:35:21 +0000 (GMT) (envelope-from smartweb@leadhill.net) Received: from ibm.nlcc.us (ldhl-ras1-dial-12-28-24-225.natcotech.com [12.28.24.225]) by natco3.natcotech.com (Postfix) with ESMTP id AC85A62A71 for ; Tue, 20 Sep 2005 15:35:20 -0500 (CDT) Received: (qmail 63508 invoked by uid 89); 20 Sep 2005 20:35:18 -0000 Received: from unknown (HELO ?192.168.0.2?) (192.168.0.2) by ibm.nlcc.us with SMTP; 20 Sep 2005 20:35:18 -0000 Message-ID: <43307286.4020601@leadhill.net> Date: Tue, 20 Sep 2005 15:35:18 -0500 From: Billy Newsom User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: FreeBSD Stable Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: ep0 Interrupt Storm, 3Com EtherLink III (PnP) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Sep 2005 20:35:27 -0000 Does anyone know exactly what to do about an interrupt storm, or if it really is a problem? I have an old system acting as a router/firewall. It is a dual processor, so I use SMP. But since going to 5.3 and 5.4, it would seem that this system runs a bit worse than under 4.7. It could be based on just an old BIOS, which will never be updated now, which doesn't support some of the new stuff. It's not ACPI, and PnP seems to be marginal as it always has been. Other than the dmesg output, I would know nothing about such a storm. Since it is happening to a network card, I was wondering if it needs to be addressed. I also don't know about the "unknown: can't assign resources (port)" errors. But back to the main issue, what is the storm all about? # vmstat -i interrupt total rate irq1: atkbd0 634 0 irq5: ep0 1037411 2 irq6: fdc0 10 0 irq8: rtc 58059776 127 irq14: ata0 7724041 17 irq15: ata1 29416 0 irq18: rl0 2068244 4 irq0: clk 45353879 99 Total 114273411 251 *dmesg output (Storm is near the last line): FreeBSD 5.4-STABLE #0: Mon Jul 4 18:28:47 CDT 2005 root@me.dd.dd:/usr/obj/usr/src/sys/BILLYSMP3 Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Pentium Pro (199.31-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x617 Stepping = 7 Features=0xfbff real memory = 536870912 (512 MB) avail memory = 515719168 (491 MB) MPTable: FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 1 cpu1 (AP): APIC ID: 0 ioapic0: Assuming intbase of 0 ioapic0 irqs 0-23 on motherboard npx0: on motherboard npx0: INT 16 interface cpu0 on motherboard cpu1 on motherboard pcib0: pcibus 0 on motherboard pci0: on pcib0 isab0: at device 1.0 on pci0 isa0: on isab0 atapci0: port 0xfff0-0xffff,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 1.1 on pci0 ata0: channel #0 on atapci0 ata1: channel #1 on atapci0 uhci0: port 0x5400-0x541f irq 19 at device 1.2 on pci0 usb0: on uhci0 usb0: USB revision 1.0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered rl0: port 0x5000-0x50ff mem 0x50000000-0x500000ff irq 18 at device 6.0 on pci0 miibus0: on rl0 rlphy0: on miibus0 rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto rl0: Ethernet address: 00:50:ba:4d:57:6f pci0: at device 11.0 (no driver attached) orm0: at iomem 0xc0000-0xc7fff on isa0 fdc0: at port 0x3f0-0x3f5 irq 6 drq 2 on isa0 fd0: <1440-KB 3.5" drive> on fdc0 drive 0 atkbdc0: at port 0x64,0x60 on isa0 atkbd0: irq 1 on atkbdc0 kbd0 at atkbd0 vga0: at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sc0: at flags 0x100 on isa0 sc0: VGA <6 virtual consoles, flags=0x300> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A ppc0: at port 0x378-0x37f irq 7 on isa0 ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/8 bytes threshold ppbus0: on ppc0 lpt0: on ppbus0 lpt0: Interrupt-driven port ppi0: on ppbus0 ep0: <3Com 3C509B-TPO EtherLink III (PnP)> at port 0x210-0x21f irq 5 on isa0 ep0: Ethernet address: 00:a0:24:6c:1b:46 unknown: can't assign resources (port) unknown: can't assign resources (port) unknown: can't assign resources (port) unknown: can't assign resources (port) unknown: can't assign resources (port) Timecounters tick every 10.000 msec IP Filter: v3.4.35 initialized. Default = pass all, Logging = enabled Interrupt storm detected on "irq5: ep0"; throttling interrupt source ad0: 8809MB [17898/16/63] at ata0-master WDMA2 ad2: 2014MB [4092/16/63] at ata1-master WDMA2 acd0: DVDROM at ata1-slave PIO4 SMP: AP CPU #1 Launched! Mounting root from ufs:/dev/ad0s1a