Date: Fri, 24 Jun 2005 17:09:28 +0100 From: Chris Phillips <SysAdmin@Rainbow-IT.net> To: freebsd-stable@freebsd.org Subject: dmesg queries Message-ID: <42BC3038.30705@Rainbow-IT.net>
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Hi All, I'm trying to figure out a couple of things & would like some advice please. My server was on FreeBSD 5.3 STABLE #1 this morning (I only took it to STABLE, because at the time, my GigNIC was not supported fully @RELEASE). I upgraded today & it's now looking like this: - % uname -a FreeBSD venus.rainbow-it.net 5.4-RELEASE-p2 FreeBSD 5.4-RELEASE-p2 #2: Fri Jun 24 13:43:08 BST 2005 furrie@venus.rainbow-it.net:/usr/obj/usr/src/sys/VENUS i386 It's a lowly Dell PowerEdge 800 <DELL PE800> Here's what has me writing... looking in /var/run/dmesg I see: - kernel: ioapic0: Changing APIC ID to 2 kernel: ioapic1: Changing APIC ID to 3 kernel: ioapic1: WARNING: intbase 32 != expected base 24 kernel: ioapic0 <Version 2.0> irqs 0-23 on motherboard kernel: ioapic1 <Version 2.0> irqs 32-55 on motherboard Should I be worried by that WARNING? Also in /var/run/dmesg I see: - kernel: Interrupt storm detected on "irq19: uhci0 uhci2"; throttling interrupt source kernel: Interrupt storm detected on "irq18: bge0 uhci1+"; throttling interrupt source I think the top device is a Logitech QuickCam Express & the bottom one (using irq18), is my onboard Gigabit NIC. Would these lines in dmesg suggest that there is a problem and if so, is there anything that I can do to combat it? Is it likely that this 'throttling', is slowing my NIC at all? I have seen this kind of notification (throttling), when printing. This is the dmesg output for that device: - kernel: ppc0: <ECP parallel printer port> port 0x778-0x77f,0x378-0x37f irq 7 drq 1 on acpi0 kernel: ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode kernel: ppc0: FIFO with 16/16/8 bytes threshold kernel: ppbus0: <Parallel port bus> on ppc0 kernel: ppbus0: IEEE1284 device found /NIBBLE/ECP kernel: Probing for PnP devices on ppbus0: kernel: ppbus0: <HEWLETT-PACKARD DESKJET 990C> PRINTER MLC,PCL,PML kernel: lpt0: <Printer> on ppbus0 kernel: lpt0: Interrupt-driven port kernel: ppi0: <Parallel I/O> on ppbus0 Now, the upgrade may well have stopped the behavior mentioned below, but if not, does anyone know what I might have done wrong, to be getting (a lot of) messages like: - sio0: 1848 more interrupt-level buffer overflows (total 11269) ? This is the device: - kernel: sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 kernel: sio0: type 16550A Finally, is it considered "bad form", to ask multiple questions like I have, or should I have separated them & sent them in multiple emails? Kind Regards, Chris Phillips
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