kern/144898: wpi panics system

Sat Mar 20 08:50:04 UTC 2010

>Number:         144898
>Category:       kern
>Synopsis:       wpi panics system
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Mar 20 08:50:03 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Dominic Fandrey
>Release:        RELENG_8
>Organization:
private
>Environment:
FreeBSD mobileKamikaze.norad 8.0-STABLE FreeBSD 8.0-STABLE #0: Thu Mar 18 22:46:18 CET 2010     root at mobileKamikaze.norad:/usr/obj/HP6510b-8/amd64/usr/src/sys/HP6510b-8  amd64
>Description:
A couple of days ago I upgraded my notebook from 2gb to 8gb ram. Ever since my wpi wireless works very unreliable. An established connection just disappears suddenly often after only a couple of minutes (the wireles LED turns itself off). Afterwards it's no longer possible to find wireless networks. Scans always return nothing.

This is not the worst, though. It also panics the system quite often (I'm using a really slow GSM connection, to avoid the panics). I.e. the system freezes without creating a dump.

Once I happened to be looking at the error console and pressed the radio button. This is what I recorded (using pen and paper):

wpi0: Hardware Switch Enabled
wpi0: could not set power mode
wpi0: device config failed
kernel trap 12 with interrupts disabled

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x20
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff802501ab
stack pointer		= 0x28:0xffffff80e7c01b70
frame pointer		= 0x28:0xffffff80e7c01ba0
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= resume, IOPL = 0
current process		= 0 (wpi0 taskq)
trap number		= 12
panic: page fault
cpuid = 1

As I said, the system doesn't dump, no idea why. This is an HP Compag 6510b, Intel Core2Duo, 8gb memory.

pciconf -lv:
hostb0 at pci0:0:0:0:	class=0x060000 card=0x30c0103c chip=0x2a008086 rev=0x0c hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Mobile PM965/GM965/GL960 Express Processor to DRAM Controller'
    class      = bridge
    subclass   = HOST-PCI
vgapci0 at pci0:0:2:0:	class=0x030000 card=0x30c0103c chip=0x2a028086 rev=0x0c hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Mobile 965 Express Integrated Graphics Controller'
    class      = display
    subclass   = VGA
vgapci1 at pci0:0:2:1:	class=0x038000 card=0x30c0103c chip=0x2a038086 rev=0x0c hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Mobile 965 Express Integrated Graphics Controller'
    class      = display
uhci0 at pci0:0:26:0:	class=0x0c0300 card=0x30c0103c chip=0x28348086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) USB UHCI *4'
    class      = serial bus
    subclass   = USB
uhci1 at pci0:0:26:1:	class=0x0c0300 card=0x30c0103c chip=0x28358086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) USB UHCI *5'
    class      = serial bus
    subclass   = USB
ehci0 at pci0:0:26:7:	class=0x0c0320 card=0x30c0103c chip=0x283a8086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'ICH8 Enhanced USB2 Enhanced Host Controller (81EC1043 (?))'
    class      = serial bus
    subclass   = USB
hdac0 at pci0:0:27:0:	class=0x040300 card=0x30c0103c chip=0x284b8086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Intel audio controller embedded with the 82801H chipset ( ICH8 chipset ) (82801H)'
    class      = multimedia
    subclass   = HDA
pcib1 at pci0:0:28:0:	class=0x060400 card=0x30c0103c chip=0x283f8086 rev=0x03 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) PCIe Port 1'
    class      = bridge
    subclass   = PCI-PCI
pcib2 at pci0:0:28:1:	class=0x060400 card=0x30c0103c chip=0x28418086 rev=0x03 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) PCIe Port 2'
    class      = bridge
    subclass   = PCI-PCI
pcib3 at pci0:0:28:2:	class=0x060400 card=0x30c0103c chip=0x28438086 rev=0x03 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) PCIe Port 3'
    class      = bridge
    subclass   = PCI-PCI
pcib4 at pci0:0:28:4:	class=0x060400 card=0x30c0103c chip=0x28478086 rev=0x03 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) PCIe Port 5'
    class      = bridge
    subclass   = PCI-PCI
uhci2 at pci0:0:29:0:	class=0x0c0300 card=0x30c0103c chip=0x28308086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) USB UHCI *1'
    class      = serial bus
    subclass   = USB
uhci3 at pci0:0:29:1:	class=0x0c0300 card=0x30c0103c chip=0x28318086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) USB UHCI *2'
    class      = serial bus
    subclass   = USB
uhci4 at pci0:0:29:2:	class=0x0c0300 card=0x30c0103c chip=0x28328086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) USB UHCI *3'
    class      = serial bus
    subclass   = USB
ehci1 at pci0:0:29:7:	class=0x0c0320 card=0x30c0103c chip=0x28368086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) USB2 EHCI *1'
    class      = serial bus
    subclass   = USB
pcib5 at pci0:0:30:0:	class=0x060401 card=0x30c0103c chip=0x24488086 rev=0xf3 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801 Family (ICH2/3/4/5/6/7/8/9-M) Hub Interface to PCI Bridge'
    class      = bridge
    subclass   = PCI-PCI
isab0 at pci0:0:31:0:	class=0x060100 card=0x30c0103c chip=0x28158086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801HEM (ICH8M-E) LPC Interface Controller'
    class      = bridge
    subclass   = PCI-ISA
atapci0 at pci0:0:31:1:	class=0x01018a card=0x30c0103c chip=0x28508086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801H (ICH8 Family) Ultra ATA Storage Controllers'
    class      = mass storage
    subclass   = ATA
ahci0 at pci0:0:31:2:	class=0x010601 card=0x30c0103c chip=0x28298086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Mobile SATA AHCI Controller'
    class      = mass storage
    subclass   = SATA
wpi0 at pci0:16:0:0:	class=0x028000 card=0x135c103c chip=0x42228086 rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Intel 3945ABG Wireless LAN controller (10208086)'
    class      = network
bge0 at pci0:24:0:0:	class=0x020000 card=0x30c0103c chip=0x169314e4 rev=0x02 hdr=0x00
    vendor     = 'Broadcom Corporation'
    device     = 'Ethernet Controller Broadcom Netlink Gigabit (BCM5787A)'
    class      = network
    subclass   = ethernet
none0 at pci0:2:4:0:	class=0x060700 card=0x30c0103c chip=0x04761180 rev=0xb6 hdr=0x02
    vendor     = 'Ricoh Company, Ltd.'
    device     = 'Ricoh R/RL/5C476(II) (unknown)'
    class      = bridge
    subclass   = PCI-CardBus

dmesg |grep wpi:
wpi0: <Intel(R) PRO/Wireless 3945ABG> mem 0xe4100000-0xe4100fff irq 17 at device 0.0 on pci16
wpi0: Driver Revision 20071127
wpi0: Hardware Revision (0x1)
wpi0: Regulatory Domain: MoW2
wpi0: Hardware Type: B
wpi0: Hardware Revision: ?
wpi0: SKU does support 802.11a
wpi0: [ITHREAD]

>How-To-Repeat:
Use wpi wireless on an amd64 system with 8gb ram. If you use wpa_supplicant it panics more frequently.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: