[Prism54-users] SMC2835W problem

Thu Mar 10 21:17:22 UTC 2005

reverend at SAFe-mail.net wrote:

>-------- Original Message --------
>From: SZABO Zsolt <szazs at mm.bme.hu>
>Apparently from: prism54-users-bounces at prism54.org
>To: prism54-users at prism54.org
>Subject: [Prism54-users] SMC2835W problem
>Date: Thu, 3 Mar 2005 00:58:18 +0100 (CET)
>
>  
>
>>I use this wireless card in my HP Omnibook XE3 for more than a half year.
>>It worked fairly well till the last month. Since then the packet loss is
>>around 25-30%. It "losts the connection" after 30-40 seconds: the green
>>light after the LINK turns off and after a few seconds it blinks and gets
>>turned on as when inserting the card in the PCMCIA slot -- and this
>>repeats itself.
>>
>>There isn't anything in the log or in the kernel messages (patched
>>2.4.23). The WAP is in 5m ... (it is broadband router with WAN gateway
>>[to ADSL] and firewall options)
>>
>>Any hints what can  be wrong? (is it the fault of the card or more likely
>>of the WAP?)
>>    
>>
>
>If you didn`t made any software-changes it can only be the hardware itself
>or bad signal in the air, coming from whatsoever equipment.
>Note that most of the european mircowave-ovens make a very strong and wide
>signal under and above 2450 MHz (ISM-area, free for lot`s of purpose).
>From, especially the new 11g-USB-sticks I noticed a totally unacceptably heat
>during normal usage which may cause increasing leakage-currents, drying
>of capacitors and collapsing hardware itself. If its in the LT it`s bad to check......
>If you really have no suspicious logs the first I guess is other signals.
>This can also be another WLAN using other channels but the same (11g)-frequeny-area, because it`s makes yours insensitive.
>Plug the card in and out, clean the contacts, move used cables, be aware of
>remote thermometer-sensors at 432 MHz.............
>
>          good luck,     reverend
>  
>
The micro-oven is quite far in the kitchen... We also have a Siemens
GigasetC1
cordless phone. However, it has been being in usage since more than a year.

Today I noticed some weird thing:

I plugged in my scanner into the USB, and after plugging it out I had
tried to insert this
card but the prism54 driver refused working:

cs: cb_alloc(bus 2): vendor 0x1260, device 0x3890
PCI: Enabling device 02:00.0 (0000 -> 0002)
Loaded prism54 driver, version 1.0.2.2
__alloc_pages: 5-order allocation failed (gfp=0x20/0)
prism54: could not allocate DMA memory, aborting!<3>prism54: could not
configure
network device

Plugging in and out, resulted the same message.

Finally, I have rebooted my machine. Then, when inserting first time the
SMC2835W card
again it echoed:

spurious 8259A interrupt: IRQ7.

After manually configuring the eth interface, it works but with the same
throughput
(25%).
(The card is quite warm after ejecting it, about 40-50C... I don't know
how normal this is)

About the interrupts and the pci bus, the outputs can be found below.

Zsolt

           CPU0
  0:      96064          XT-PIC  timer
  1:       1957          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  5:        508          XT-PIC  usb-uhci, Allegro
  8:          3          XT-PIC  rtc
11:        775          XT-PIC  Texas Instruments PCI1420, Texas
Instruments PCI1420 (#2), eth0
12:       1914          XT-PIC  PS/2 Mouse
14:       6003          XT-PIC  ide0
15:          1          XT-PIC  ide1
NMI:          0
LOC:          0
ERR:         24
MIS:          0

00:00.0 Host bridge: Intel Corp. 440BX/ZX - 82443BX/ZX Host bridge (rev 03)
         Flags: bus master, medium devsel, latency 64
         Memory at f8000000 (32-bit, prefetchable) [size=64M]
         Capabilities: [a0] AGP version 1.0

00:01.0 PCI bridge: Intel Corp. 440BX/ZX - 82443BX/ZX AGP bridge (rev 
03) (prog-if 00 [Normal decode])
         Flags: bus master, 66Mhz, medium devsel, latency 128
         Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
         Memory behind bridge: f0000000-f7ffffff

00:04.0 CardBus bridge: Texas Instruments PCI1420
         Subsystem: Hewlett-Packard Company: Unknown device 0014
         Flags: bus master, medium devsel, latency 168, IRQ 11
         Memory at 10000000 (32-bit, non-prefetchable) [size=4K]
         Bus: primary=00, secondary=02, subordinate=05, sec-latency=176
         Memory window 0: 10400000-107ff000 (prefetchable)
         Memory window 1: 10800000-10bff000
         I/O window 0: 00004000-000040ff
         I/O window 1: 00004400-000044ff
         16-bit legacy interface ports at 0001

00:04.1 CardBus bridge: Texas Instruments PCI1420
         Subsystem: Hewlett-Packard Company: Unknown device 0014
         Flags: bus master, medium devsel, latency 168, IRQ 11
         Memory at 10001000 (32-bit, non-prefetchable) [size=4K]
         Bus: primary=00, secondary=06, subordinate=09, sec-latency=176
         Memory window 0: 10c00000-10fff000 (prefetchable)
         Memory window 1: 11000000-113ff000
         I/O window 0: 00004800-000048ff
         I/O window 1: 00004c00-00004cff
         16-bit legacy interface ports at 0001

00:07.0 ISA bridge: Intel Corp. 82371AB PIIX4 ISA (rev 02)
         Flags: bus master, medium devsel, latency 0

00:07.1 IDE interface: Intel Corp. 82371AB PIIX4 IDE (rev 01) (prog-if 
80 [Master])
         Flags: bus master, medium devsel, latency 64
         I/O ports at 1080 [size=16]

00:07.2 USB Controller: Intel Corp. 82371AB PIIX4 USB (rev 01) (prog-if 
00 [UHCI])
         Flags: bus master, medium devsel, latency 64, IRQ 5
         I/O ports at 1060 [size=32]

00:07.3 Bridge: Intel Corp. 82371AB PIIX4 ACPI (rev 03)
         Flags: medium devsel, IRQ 9

00:08.0 Multimedia audio controller: ESS Technology ES1988 Allegro-1 
(rev 12)
         Subsystem: Hewlett-Packard Company: Unknown device 0012
         Flags: bus master, medium devsel, latency 64, IRQ 5
         I/O ports at 1400 [size=256]
         Capabilities: [c0] Power Management version 2

00:08.1 Communication controller: ESS Technology ESS Modem (rev 12)
         Subsystem: Hewlett-Packard Company: Unknown device 0012
         Flags: medium devsel, IRQ 5
         I/O ports at 1800 [size=256]
         Capabilities: [c0] Power Management version 2

01:01.0 VGA compatible controller: S3 Inc. 86C270-294 Savage/IX-MV (rev 
13) (prog-if 00 [VGA])
         Subsystem: Hewlett-Packard Company: Unknown device 0014
         Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 11
         Memory at f0000000 (32-bit, non-prefetchable) [size=128M]
         Expansion ROM at <unassigned> [disabled] [size=64K]
         Capabilities: [dc] Power Management version 1
         Capabilities: [80] AGP version 1.0

02:00.0 Network controller: Harris Semiconductor: Unknown device 3890 
(rev 01)
         Subsystem: Standard Microsystems Corp [SMC]: Unknown device a835
         Flags: bus master, medium devsel, latency 80, IRQ 11
         Memory at 10800000 (32-bit, non-prefetchable) [size=8K]
         Capabilities: [dc] Power Management version 1