kern/69158: Cisco MPI350 problems related to irq sharing

Michel Bovey michel at
Wed Jul 21 16:30:23 PDT 2004

The following reply was made to PR kern/69158; it has been noted by GNATS.

From: Michel Bovey <michel at>
To: freebsd-gnats-submit at, jcmorris at
Subject: Re: kern/69158: Cisco MPI350 problems related to irq sharing
Date: Thu, 22 Jul 2004 01:22:53 +0200

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 My IBM Thinkpad T30 is experiencing the same problem since I have
 upgraded from FreeBSD 4.9 to FreeBSD 4.10 p2.
 $ dmesg | grep -i irq
 pci1: <ATI model 4c57 graphics accelerator> at 0.0 irq 11
 uhci0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> port
 0x1800-0x181f irq 11 at device 29.0 on pci0
 uhci1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> port
 0x1820-0x183f irq 11 at device 29.1 on pci0
 uhci2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> port
 0x1840-0x185f irq 11 at device 29.2 on pci0
 pcic0: <TI PCI-1520 PCI-CardBus Bridge> mem 0x50000000-0x50000fff irq 11
 at device 0.0 on pci2
 pcic0: TI12XX PCI Config Reg: [speaker enable][pwr save][CSC serial isa
 pcic1: <TI PCI-1520 PCI-CardBus Bridge> mem 0x51000000-0x51000fff irq 5
 at device 0.1 on pci2
 pcic1: TI12XX PCI Config Reg: [speaker enable][pwr save][CSC serial isa
 an0: <Cisco Aironet MPI350> port 0x8000-0x80ff mem
 0xd0400000-0xd07fffff,0xd0200000-0xd0203fff irq 11 at device 2.0 on pci2
 fxp0: <Intel 82801CAM (ICH3) Pro/100 VE Ethernet> port 0x8400-0x843f mem
 0xd0204000-0xd0204fff irq 11 at device 8.0 on pci2
 ata0: at 0x1f0 irq 14 on atapci0
 ata1: at 0x170 irq 15 on atapci0
 pci0: <unknown card> (vendor=3D0x8086, dev=3D0x2483) at 31.3 irq 5
 pcm0: <Intel ICH3 (82801CA)> port 0x18c0-0x18ff,0x1c00-0x1cff irq 5 at
 device 31.5 on pci0
 pci0: <unknown card> (vendor=3D0x8086, dev=3D0x2486) at 31.6 irq 5
 fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
 atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
 psm0: <PS/2 Mouse> irq 12 on atkbdc0
 sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
 sio1 at port 0x2f8-0x2ff irq 3 on isa0
 Typical error message in /var/log/messages:
 Jul 22 01:00:37 bear4 /kernel: an0: failed to read RID ff50 7f21 21 0
 2eab, 3
 As work around I have downgraded back to FreeBSD 4.9.
 Michel Bovey
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