[Bug 54780] bcm43xx driver :kernel panic when trying to set some wireless parameters (iwconfig)

[hardhu]

Public bug reported:

Binary package hint: linux-image-2.6.15-26-amd64-k8

Hello everybody,
here's my system description: notebook Acer Aspire 5024 (Turion64 ML-34 processor), onboard Broadcom 4318 wireless card as lspci stats:

0000:06:05.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02)
        Subsystem: AMBIT Microsystem Corp. Aspire 3022WLMi
        Flags: bus master, fast devsel, latency 64, IRQ 177
        Memory at c0204000 (32-bit, non-prefetchable) [size=8K]

I am using Kubuntu Dapper 6.06 with kernel 2.6.15-26-amd645-k8, and I
have 2G of ram. I have followed the wiki page
(https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx/Dapper) with
the instructions to use Dapper bcm43xx driver, that is:

sudo apt-get install bcm43xx-fwcutter
zless /usr/share/doc/bcm43xx-fwcutter/README.gz

then I have picked the acer winxp 64bit provided firmware bcmwl564.sys available at ftp://ftp.support.acer-euro.com/notebook/aspire_3020_5020/driver
/winxp64bit/80211g.zip

then I have extracted the firmware:
sudo bcm43xx-fwcutter -w /lib/firmware

and then I have removed and reinsterted the module.

Now iwconfig shows this:
eth1      IEEE 802.11b/g  ESSID:off/any  Nickname:"Broadcom 4318"
          Mode:Managed  Access Point: Invalid   Bit Rate=1 Mb/s
          RTS thr:off   Fragment thr:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

it seems that I can modify transmission rate:
sudo iwconfig eth1 rate 11M
eth1      IEEE 802.11b/g  ESSID:off/any  Nickname:"Broadcom 4318"
          Mode:Managed  Access Point: Invalid   Bit Rate=11 Mb/s
          RTS thr:off   Fragment thr:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

but when I try to set the essid or to scan for networks I get a kernel
panic; one of the last lines of the oops says
"bcm43xx_dma_handle_xmitstatus..."

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Untriaged
         Status: Unconfirmed

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bcm43xx driver :kernel panic when trying to set some wireless parameters (iwconfig)
https://launchpad.net/bugs/54780