kern/44060: iwn wireless works for awhile, then fails

[donaldcallen%gmail.com@localhost]

>Number:         44060
>Category:       kern
>Synopsis:       iwn wireless works for awhile, then fails
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 07 18:10:01 +0000 2010
>Originator:     Don Allen
>Release:        5.1 RC4
>Organization:
>Environment:
NetBSD sophie 5.1_RC4 NetBSD 5.1_RC4 (GENERIC) #0: Mon Sep 13 20:20:21 UTC 2010 
 
builds%b6.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-RC4/amd64/201009140238Z-obj/home/builds/ab/netbsd-5-1-RC4/src/sys/arch/amd64/compile/GENERIC
 amd64

>Description:
I am running 5.1 RC4 on my Thinkpad X61 with iwn wireless set up to do WAP 
personal. This machine is set up dual-boot with Slackware Linux 13.1 being the 
other system installed (which gives me a basis for comparison; the issue I am 
describing here does not occur when running Linux). After booting the system, 
the wireless works fine, but after some time, it stops working. There are no 
indications in /var/log/messages or anywhere else in /var/log that I could 
find. I *did* get the messages

Nov  7 07:36:25 sophie /netbsd: iwn0: fatal firmware error
Nov  7 07:36:25 sophie /netbsd: iwn0: could not lock memory
Nov  7 07:36:25 sophie last message repeated 17 times

that I believe are the same as reported in PR #42114. But those occurred early 
this morning at the time our power failed and the wireless base station went 
down. The wireless failures that I am describing here occurred later in the day 
and were *not* accompanied by those or any other messages.

dmesg:
NetBSD 5.1_RC4 (GENERIC) #0: Mon Sep 13 20:20:21 UTC 2010
        
builds%b6.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-RC4/amd64/201009140238Z-obj/home/builds/ab/netbsd-5-1-RC4/src/sys/arch/amd64/compile/GENERIC
total memory = 2006 MB
avail memory = 1928 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
SMBIOS rev. 2.4 @ 0xe0010 (63 entries)
LENOVO 7675CTO (ThinkPad X61)
mainbus0 (root)
cpu0 at mainbus0 apid 0: Intel 686-class, 2094MHz, id 0x10676
cpu1 at mainbus0 apid 1: Intel 686-class, 2094MHz, id 0x10676
ioapic0 at mainbus0 apid 1: pa 0xfec00000, version 20, 24 pins
acpi0 at mainbus0: Intel ACPICA 20080321
acpi0: X/RSDT: OemId <LENOVO,TP-7N   ,00002210>, AslId < LTP,00000000>
acpiecdt0 at acpi0: ACPI Embedded Controller via ECDT
acpi0: SCI interrupting at int 9
acpi0: fixed-feature power button present
timecounter: Timecounter "ACPI-Safe" frequency 3579545 Hz quality 900
ACPI-Safe 24-bit timer
acpilid0 at acpi0 (LID, PNP0C0D): ACPI Lid Switch
acpibut0 at acpi0 (SLPB, PNP0C0E): ACPI Sleep Button
attimer1 at acpi0 (TIMR, PNP0100): io 0x40-0x43 irq 0
hpet0 at acpi0 (HPET, PNP0103): mem 0xfed00000-0xfed003ff
timecounter: Timecounter "hpet0" frequency 14318179 Hz quality 2000
pcppi1 at acpi0 (SPKR, PNP0800): io 0x61
midi0 at pcppi1: PC speaker (CPU-intensive output)
sysbeep0 at pcppi1
pckbc1 at acpi0 (KBD, PNP0303) (kbd port): io 0x60,0x64 irq 1
pckbc2 at acpi0 (MOU, IBM3780) (aux port): irq 12
TPM (ATM1200) at acpi0 not configured
acpiec0 at acpi0 (EC, PNP0C09-0): using acpiecdt0
acpibat0 at acpi0 (BAT0, PNP0C0A-0): ACPI Battery (Control Method)
acpibat0: battery info: SANYO, LION, COMPATIBLE 39973
acpiacad0 at acpi0 (AC, ACPI0003-0): ACPI AC Adapter
thinkpad0 at acpi0 (HKEY, IBM0068)
thinkpad0: using CMOS at \UCMS
thinkpad0: using EC at acpiecdt0
acpitz0 at acpi0 (THM0): critical 127.0C, passive cooling
acpitz1 at acpi0 (THM1): critical 100.0C passive 48.0C, passive cooling
attimer1: attached to pcppi1
pckbd0 at pckbc1 (kbd slot)
pckbc1: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard
pms0 at pckbc1 (aux slot)
pckbc1: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: vendor 0x8086 product 0x2a00 (rev. 0x0c)
agp0 at pchb0: detected 7676k stolen memory
agp0: aperture at 0xe0000000, size 0x20000000
vga0 at pci0 dev 2 function 0: vendor 0x8086 product 0x2a02 (rev. 0x0c)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using wskbd0
wsmux1: connecting to wsdisplay0
drm at vga0 not configured
vendor 0x8086 product 0x2a03 (miscellaneous display, revision 0x0c) at pci0 dev 
2 function 1 not configured
wm0 at pci0 dev 25 function 0: Intel i82801H (M_AMT) LAN Controller, rev. 3
wm0: interrupting at ioapic0 pin 20
wm0: PCI-Express bus
wm0: FLASH
wm0: Ethernet address 00:1d:72:90:7f:62
igphy0 at wm0 phy 1: i82566 10/100/1000 media interface, rev. 0
igphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
uhci0 at pci0 dev 26 function 0: vendor 0x8086 product 0x2834 (rev. 0x03)
uhci0: interrupting at ioapic0 pin 20
usb0 at uhci0: USB revision 1.0
uhci1 at pci0 dev 26 function 1: vendor 0x8086 product 0x2835 (rev. 0x03)
uhci1: interrupting at ioapic0 pin 21
usb1 at uhci1: USB revision 1.0
ehci0 at pci0 dev 26 function 7: vendor 0x8086 product 0x283a (rev. 0x03)
ehci0: interrupting at ioapic0 pin 22
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1
usb2 at ehci0: USB revision 2.0
azalia0 at pci0 dev 27 function 0: Generic High Definition Audio Controller
azalia0: interrupting at ioapic0 pin 17
azalia0: host: 0x8086/0x284b (rev. 3), HDA rev. 1.0
ppb0 at pci0 dev 28 function 0: vendor 0x8086 product 0x283f (rev. 0x03)
pci1 at ppb0 bus 2
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
vendor 0x8086 product 0x444e (miscellaneous memory, revision 0x01) at pci1 dev 
0 function 0 not configured
ppb1 at pci0 dev 28 function 1: vendor 0x8086 product 0x2841 (rev. 0x03)
pci2 at ppb1 bus 3
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
iwn0 at pci2 dev 0 function 0: vendor 0x8086 product 0x4230 (rev. 0x61)
iwn0: interrupting at ioapic0 pin 17
iwn0: MoW1, address 00:1f:3b:6c:91:7d
iwn0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
iwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 
36Mbps 48Mbps 54Mbps
uhci2 at pci0 dev 29 function 0: vendor 0x8086 product 0x2830 (rev. 0x03)
uhci2: interrupting at ioapic0 pin 16
usb3 at uhci2: USB revision 1.0
uhci3 at pci0 dev 29 function 1: vendor 0x8086 product 0x2831 (rev. 0x03)
uhci3: interrupting at ioapic0 pin 17
usb4 at uhci3: USB revision 1.0
ehci1 at pci0 dev 29 function 7: vendor 0x8086 product 0x2836 (rev. 0x03)
ehci1: interrupting at ioapic0 pin 19
ehci1: EHCI version 1.0
ehci1: companion controllers, 2 ports each: uhci2 uhci3
usb5 at ehci1: USB revision 2.0
ppb2 at pci0 dev 30 function 0: vendor 0x8086 product 0x2448 (rev. 0xf3)
pci3 at ppb2 bus 5
pci3: i/o space enabled
cbb0 at pci3 dev 0 function 0: vendor 0x1180 product 0x0476 (rev. 0xba)
cbb0: can't map socket base address 0xf8300000
cbb0: can't map socket base address 0xffffffff80469d54: io mode
fwohci0 at pci3 dev 0 function 1: vendor 0x1180 product 0x0832 (rev. 0x04)
fwohci0: can't map OHCI register space
sdhc0 at pci3 dev 0 function 2: vendor 0x1180 product 0x0822 (rev. 0x21)
sdhc0: interrupting at ioapic0 pin 18
sdhc0: couldn't map register
cbb0: cacheline 0x8 lattimer 0x20
cbb0: bhlc 0x822008
cbb0: interrupting at ioapic0 pin 16
cardslot0 at cbb0
cardbus0 at cardslot0: bus 6
pcmcia0 at cardslot0
ichlpcib0 at pci0 dev 31 function 0
ichlpcib0: vendor 0x8086 product 0x2811 (rev. 0x03)
timecounter: Timecounter "ichlpcib0" frequency 3579545 Hz quality 1000
ichlpcib0: 24-bit timer
ichlpcib0: TCO (watchdog) timer configured.
piixide0 at pci0 dev 31 function 1
piixide0: Intel 82801HBM IDE Controller (ICH8M) (rev. 0x03)
piixide0: bus-master DMA support present
piixide0: primary channel configured to compatibility mode
piixide0: primary channel interrupting at ioapic0 pin 14
atabus0 at piixide0 channel 0
piixide0: secondary channel configured to compatibility mode
piixide0: secondary channel ignored (disabled)
ahcisata0 at pci0 dev 31 function 2: vendor 0x8086 product 0x2829
ahcisata0: interrupting at ioapic0 pin 16
ahcisata0: AHCI revision 1.1, 3 ports, 32 command slots, features 0xe710e080
atabus1 at ahcisata0 channel 0
atabus2 at ahcisata0 channel 2
ichsmb0 at pci0 dev 31 function 3: vendor 0x8086 product 0x283e (rev. 0x03)
ichsmb0: interrupting at ioapic0 pin 23
iic0 at ichsmb0: I2C bus
isa0 at ichlpcib0
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
azalia0: codec[0]: Analog Devices AD1984 (rev. 4.0), HDA rev. 1.0
azalia0: codec[1]: 0x14f1/0x2bfa (rev. 0.0), HDA rev. 0.9
azalia0: codec[1]: No support for modem function groups
azalia0: codec[1] has no audio function groups
audio0 at azalia0: full duplex, playback, capture, independent
uhub0 at usb0: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhub1 at usb1: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhub2 at usb2: vendor 0x8086 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub2: 4 ports with 4 removable, self powered
acpiacad0: AC adapter online.
uhub3 at usb3: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
uhub4 at usb4: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub4: 2 ports with 2 removable, self powered
uhub5 at usb5: vendor 0x8086 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub5: 4 ports with 4 removable, self powered
ahcisata0 port 0: device present, speed: 1.5Gb/s
wd0 at atabus1 drive 0: <ST9100821AS>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 95396 MB, 193821 cyl, 16 head, 63 sec, 512 bytes/sect x 195371568 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) 
(using DMA)
Kernelized RAIDframe activated
pad0: outputs: 44100Hz, 16-bit, stereo
audio1 at pad0: half duplex, playback, capture
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
uhidev0 at uhub3 port 1 configuration 1 interface 0
uhidev0: Microsoft Microsoft 5-Button Mouse with IntelliEye(TM), rev 1.10/3.00, 
addr 2, iclass 3/1
ums0 at uhidev0: 5 buttons and Z dir
wsmouse1 at ums0 mux 0
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
>How-To-Repeat:
I just boot the machine and use it for awhile until things deteriorate (memory 
leak?). In fact, to send this report, I had to save what I'd written, reboot, 
and get the message out quickly before the wireless failed (yes, I could have 
switched to wired ethernet).
>Fix: