Date: Mon, 23 Dec 2002 16:47:48 -0800 From: Marcel Moolenaar <marcel@xcllnt.net> To: current@FreeBSD.org Subject: mpt(4): berserk interrupt frequency Message-ID: <20021224004748.GA1134@athlon.pn.xcllnt.net>
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Hi,
Can someone who has a mpt(4) device tell me if their interrupt frequency
is as absurd as mine is?
\begin{verbatim}
mckinley% vmstat -i
interrupt total rate
clock 272238 1019
ohci1 1 0
fxp0 347 1
atapci0 4 0
mpt0 8286623314361713943 31036042375886569
mpt1 2314885530819653497 8669983261496829
bge0 2105376 7885
Total 10601508845183745406 39706025637392304
\end{verbatim}
I want to know if this is something specific to ia64 or if it's
more commonly seen. Some dmesg(8) output:
\begin{verbatim}
Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #261: Mon Dec 23 16:20:39 PST 2002
marcel@itanium.pn.xcllnt.net:/nfs/p4/ia64/sys/ia64/compile/HP_RX2600
Preloaded elf kernel "/boot/kernel/kernel" at 0xe000000000b8a000.
:
pcib1: <ACPI Host-PCI bridge> on acpi0
pci32: <ACPI PCI bus> on pcib1
mpt0: <LSILogic 1030 Ultra4 Adapter> port 0x2100-0x21ff mem 0x90830000-0x9083ffff,0x90840000-0x9084ffff irq 27 at device 1.0 on pci32
mpt1: <LSILogic 1030 Ultra4 Adapter> port 0x2000-0x20ff mem 0x90810000-0x9081ffff,0x90820000-0x9082ffff irq 28 at device 1.1 on pci32
bge0: <Broadcom BCM5701 Gigabit Ethernet> mem 0x90800000-0x9080ffff irq 29 at device 2.0 on pci32
:
\end{varbatim}
No interrupt sharing. The following snippet is the result of filtering
dmesg(8) with grep(1) on irq:
\begin{verbatim}
ohci0: <NEC uPD 9210 USB controller> mem 0x80023000-0x80023fff irq 16 at device 1.0 on pci0
ohci1: <NEC uPD 9210 USB controller> mem 0x80022000-0x80022fff irq 17 at device 1.1 on pci0
atapci0: <CMD 649 ATA100 controller> port 0xd40-0xd4f,0xd60-0xd63,0xd50-0xd57,0xd64-0xd67,0xd58-0xd5f irq 21 at device 2.0 on pci0
fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0xd00-0xd3f mem 0x80000000-0x8001ffff,0x80020000-0x80020fff irq 20 at device 3.0 on pci0
mpt0: <LSILogic 1030 Ultra4 Adapter> port 0x2100-0x21ff mem 0x90830000-0x9083ffff,0x90840000-0x9084ffff irq 27 at device 1.0 on pci32
mpt1: <LSILogic 1030 Ultra4 Adapter> port 0x2000-0x20ff mem 0x90810000-0x9081ffff,0x90820000-0x9082ffff irq 28 at device 1.1 on pci32
bge0: <Broadcom BCM5701 Gigabit Ethernet> mem 0x90800000-0x9080ffff irq 29 at device 2.0 on pci32
sio0 iomem 0xff5e0000-0xff5e0007 irq 34 on acpi0
sio1 iomem 0xff5e2000-0xff5e2007 irq 35 on acpi0
sio2: <Diva Serial [GSP] Multiport UART> mem 0xf8030000-0xf8030fff irq 82 at device 1.1 on pci224
\end{verbatim}
Thanks,
--
Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net
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