Public bug reported:

Binary package hint: linux-image-2.6.31-4-generic

DISTRB_ID=Ubuntu
DISTRIB_RELEASE=9.10
DISTRIB_CODENAME=karmic
DISTRIB_DESCRIPTION="Ubuntu Karmic (developement branch)"

Kernel in use: (all on the same machine tested, multiboot)
linux-image-2.6.30-10-generic - 2.6.30-10.12 (i386)
linux-image-2.6.31-4-generic  - 2.6.31-4.22 (i386)
linux-image-2.6.30-10-generic - 2.6.30-10.12 (amd64)
linux-image-2.6.31-4-generic  - 2.6.31-4.22 (amd64)

Booting with the images 2.6.30-10-generic (i386 as well as amd64) I can
use my build-in wireless (provided by Ralink RT61) without any
restrictions, booting with the images 2.6.31-4-generic the wireless card
failed to allocate - see the relevant informations of "dmesg.log"
attached (have a look to 2.6.31-4 >> item [11.973744] + [12.343156]. It
is used allways the same laptop "MSI 270" with AMD Turion 64 dual core.
These circumstances started with the kernel-2.6.31-2 edition, updated
and testing first time.

For identification of devices you'll find the lspci-print.

The relevant drivers loaded you'll find in the attached lsmod-prints
(identified by "-30" and "-31" respectively. (has been sorted for
verification)

For Information: I tried a seperate USB-WLAN-stick (US.Robotic with p54
chip) additionally - it has been rejected on kernel-2.6.31-x too. On the
other hand these stick works sufficent on an other machine (Intel board
and P4-CPU) with above kernel(s) incl. 2.6.31-x in the same environment.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
failed to allocate wireless device
https://bugs.launchpad.net/bugs/404596
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