b43 Load Problems

[Gábor Stefanik]

On Sun, Feb 24, 2013 at 9:59 AM, Thomas D. Dean <tomdean at speakeasy.org> wrote:
> On 02/24/13 00:22, Thomas D. Dean wrote:
>>
>> # uname -a
>> Linux zd7000 2.6.32-5-686 #1 SMP Sun Sep 23 09:49:36 UTC 2012 i686
>> GNU/Linux
>>
>> At boot time, I see several error messages about wlan (b43) (below)
>>
>> wlan0 does not come up.  ifup wlan0 fails.
>>
>> # locate b43.ko
>> /lib/modules/2.6.32-5-686/kernel/drivers/net/wireless/b43/b43.ko
>> /lib/modules/2.6.32-5-686/updates/drivers/net/wireless/b43/b43.ko
>>
>> The second one corresponds to the driver built from
>>    compat-drivers-3.7.6-1
>>
>> After boot, I log in and
>>
>> # modprobe -r b43
>> # modprobe b43
>> # ifup wlan0
>>
>> and wlan0 works!
>>
>> It appears I have some disagreement between the compat-drivers-3.7.6-1
>> driver and the kernel.  I have the correct headers (see below)
>>
>> Just to be sure, I did a make uninstall, deleted the
>> compat-drivers-3.7.6-1 directory, downloaded the tar.bz2 again, and
>> repeated the build/install process.  Same results.
>>
>> In the build process, there was one warning about initialization
>> removing qualifiers on a variable...
>>
>> Any ideas?
>>
>> Tom Dean
>>
>> # dmesg | grep b43
>> [    1.356093] b43-pci-bridge 0000:02:03.0: PCI INT A -> GSI 21 (level,
>> low) -> IRQ 21
>> [    6.239072] b43: disagrees about version of symbol
>> ssb_device_is_enabled
>> [    6.239078] b43: Unknown symbol ssb_device_is_enabled
>> [    6.239432] b43: disagrees about version of symbol
>> ssb_pmu_set_ldo_paref
>> [    6.239435] b43: Unknown symbol ssb_pmu_set_ldo_paref
>> [    6.239697] b43: disagrees about version of symbol
>> ssb_pcicore_dev_irqvecs_enable
>> [    6.239700] b43: Unknown symbol ssb_pcicore_dev_irqvecs_enable
>> [    6.240110] b43: disagrees about version of symbol
>> ssb_bus_may_powerdown
>> [    6.240113] b43: Unknown symbol ssb_bus_may_powerdown
>> [    6.240704] b43: disagrees about version of symbol ssb_bus_suspend
>> [    6.240706] b43: Unknown symbol ssb_bus_suspend
>> [    6.240909] b43: disagrees about version of symbol ssb_bus_unregister
>> [    6.240912] b43: Unknown symbol ssb_bus_unregister
>> [    6.241352] b43: disagrees about version of symbol ssb_bus_resume
>> [    6.241355] b43: Unknown symbol ssb_bus_resume
>> [    6.241475] b43: disagrees about version of symbol ssb_set_devtypedata
>> [    6.241478] b43: Unknown symbol ssb_set_devtypedata
>> [    6.242511] b43: disagrees about version of symbol ssb_device_disable
>> [    6.242514] b43: Unknown symbol ssb_device_disable
>> [    6.242626] b43: disagrees about version of symbol
>> ssb_pmu_set_ldo_voltage
>> [    6.242629] b43: Unknown symbol ssb_pmu_set_ldo_voltage
>> [    6.244185] b43: disagrees about version of symbol ssb_device_enable
>> [    6.244188] b43: Unknown symbol ssb_device_enable
>> [    6.244610] b43: Unknown symbol ssb_chipco_gpio_control
>> [    6.244714] b43: disagrees about version of symbol
>> ssb_driver_unregister
>> [    6.244716] b43: Unknown symbol ssb_driver_unregister
>> [    6.245130] b43: disagrees about version of symbol
>> __ssb_driver_register
>> [    6.245133] b43: Unknown symbol __ssb_driver_register
>> [    6.245630] b43: disagrees about version of symbol
>> ssb_bus_sdiobus_register
>> [    6.245633] b43: Unknown symbol ssb_bus_sdiobus_register
>> [    6.245737] b43: disagrees about version of symbol
>> ssb_bus_pcmciabus_register
>> [    6.245740] b43: Unknown symbol ssb_bus_pcmciabus_register
>> [    6.245872] b43: disagrees about version of symbol ssb_bus_powerup
>> [    6.245874] b43: Unknown symbol ssb_bus_powerup
>> [    6.246270] b43: Unknown symbol ssb_commit_settings
>> [    6.247774] b43: disagrees about version of symbol ssb_dma_translation
>> [    6.247777] b43: Unknown symbol ssb_dma_translation
>> [   84.097824] b43: disagrees about version of symbol
>> ssb_device_is_enabled
>> [   84.097829] b43: Unknown symbol ssb_device_is_enabled
>> [   84.098203] b43: disagrees about version of symbol
>> ssb_pmu_set_ldo_paref
>> [   84.098206] b43: Unknown symbol ssb_pmu_set_ldo_paref
>> [   84.098480] b43: disagrees about version of symbol
>> ssb_pcicore_dev_irqvecs_enable
>> [   84.098484] b43: Unknown symbol ssb_pcicore_dev_irqvecs_enable
>> [   84.098861] b43: disagrees about version of symbol
>> ssb_bus_may_powerdown
>> [   84.098864] b43: Unknown symbol ssb_bus_may_powerdown
>> [   84.099452] b43: disagrees about version of symbol ssb_bus_suspend
>> [   84.099455] b43: Unknown symbol ssb_bus_suspend
>> [   84.099661] b43: disagrees about version of symbol ssb_bus_unregister
>> [   84.099664] b43: Unknown symbol ssb_bus_unregister
>> [   84.100117] b43: disagrees about version of symbol ssb_bus_resume
>> [   84.100120] b43: Unknown symbol ssb_bus_resume
>> [   84.100240] b43: disagrees about version of symbol ssb_set_devtypedata
>> [   84.100243] b43: Unknown symbol ssb_set_devtypedata
>> [   84.101490] b43: disagrees about version of symbol ssb_device_disable
>> [   84.101496] b43: Unknown symbol ssb_device_disable
>> [   84.101689] b43: disagrees about version of symbol
>> ssb_pmu_set_ldo_voltage
>> [   84.101694] b43: Unknown symbol ssb_pmu_set_ldo_voltage
>> [   84.103398] b43: disagrees about version of symbol ssb_device_enable
>> [   84.103402] b43: Unknown symbol ssb_device_enable
>> [   84.103860] b43: Unknown symbol ssb_chipco_gpio_control
>> [   84.103972] b43: disagrees about version of symbol
>> ssb_driver_unregister
>> [   84.103975] b43: Unknown symbol ssb_driver_unregister
>> [   84.104421] b43: disagrees about version of symbol
>> __ssb_driver_register
>> [   84.104424] b43: Unknown symbol __ssb_driver_register
>> [   84.104957] b43: disagrees about version of symbol
>> ssb_bus_sdiobus_register
>> [   84.104960] b43: Unknown symbol ssb_bus_sdiobus_register
>> [   84.105137] b43: disagrees about version of symbol
>> ssb_bus_pcmciabus_register
>> [   84.105142] b43: Unknown symbol ssb_bus_pcmciabus_register
>> [   84.105370] b43: disagrees about version of symbol ssb_bus_powerup
>> [   84.105375] b43: Unknown symbol ssb_bus_powerup
>> [   84.106006] b43: Unknown symbol ssb_commit_settings
>> [   84.107543] b43: disagrees about version of symbol ssb_dma_translation
>> [   84.107546] b43: Unknown symbol ssb_dma_translation
>> [   94.425174] b43-pci-bridge 0000:02:03.0: PCI INT A disabled
>> [  102.897978] b43-pci-bridge 0000:02:03.0: PCI INT A -> GSI 21 (level,
>> low) -> IRQ 21
>> [  102.972985] b43-phy0: df1a3ea4
>> [  102.997018] b43-phy0: df1a3e50
>> [  103.130708] Registered led device: b43-phy0::tx
>> [  103.130751] Registered led device: b43-phy0::rx
>> [  103.130785] Registered led device: b43-phy0::radio
>>
>>
>> # apt-cache show linux-headers-$(uname -r)
>> Package: linux-headers-2.6.32-5-686
>> Priority: optional
>> Section: kernel
>> Installed-Size: 6784
>> Maintainer: Debian Kernel Team <debian-kernel at lists.debian.org>
>> Architecture: i386
>> Source: linux-2.6
>> Version: 2.6.32-46
>> Provides: linux-headers, linux-headers-2.6
>> Depends: linux-headers-2.6.32-5-common (= 2.6.32-46),
>> linux-kbuild-2.6.32, gcc-4.3
>> Filename:
>> pool/main/l/linux-2.6/linux-headers-2.6.32-5-686_2.6.32-46_i386.deb
>> Size: 504436
>> MD5sum: 824ef36d242e4f541eefa2a55c26bf08
>> SHA1: 479dc514c7bebfe8dc8bbb3e53b194715a607ff1
>> SHA256: fb1fa87b17a919a2ff0a476683f25c1b7f5a788f738e9cc149b3d6ce7481c02b
>> Description: Header files for Linux 2.6.32-5-686
>>   This package provides the architecture-specific kernel header files for
>>   Linux kernel 2.6.32-5-686, generally used for building out-of-tree
>> kernel
>>   modules.  These files are going to be installed into
>>   /usr/src/linux-headers-2.6.32-5-686, and can be used for building
>> modules
>>   that load into the kernel provided by the linux-image-2.6.32-5-686
>>   package.
>>
>> Package: linux-headers-2.6.32-5-686
>> Source: linux-2.6
>> Version: 2.6.32-44
>> Installed-Size: 6784
>> Maintainer: Debian Kernel Team <debian-kernel at lists.debian.org>
>> Architecture: i386
>> Provides: linux-headers, linux-headers-2.6
>> Depends: linux-headers-2.6.32-5-common (= 2.6.32-44),
>> linux-kbuild-2.6.32, gcc-4.3
>> Description: Header files for Linux 2.6.32-5-686
>>   This package provides the architecture-specific kernel header files for
>>   Linux kernel 2.6.32-5-686, generally used for building out-of-tree
>> kernel
>>   modules.  These files are going to be installed into
>>   /usr/src/linux-headers-2.6.32-5-686, and can be used for building
>> modules
>>   that load into the kernel provided by the linux-image-2.6.32-5-686
>>   package.
>> Section: kernel
>> Priority: optional
>> Filename:
>>
>> pool/updates/main/l/linux-2.6/linux-headers-2.6.32-5-686_2.6.32-44_i386.deb
>> Size: 503984
>> MD5sum: ea2799a1892d22bf2b91aa20ee533ae6
>> SHA1: dc37cf4e49ae60e77c3a84cdca425bdb58cd5c24
>> SHA256: 6b6cc0c55b05acfecf719f9a2ad2c19f1426b8016846af4f944fa3afbc9aebd5
>>
>> _______________________________________________
>> b43-dev mailing list
>> b43-dev at lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/b43-dev
>>
>>
> After more investigation, it appears that some time is needed between
> loading the driver and ifup.
>
> # ifdown wlan0 && modprobe -v -r b43 && modprobe -v b43 && ifup wlan0
>
> fails.
>
> # ifdown wlan0 && modprobe -v -r b43 && modprobe -v b43 && sleep 1 && ifup
> wlan0
>
> works.
>
> Tom Dean
>

You probably have a copy of ssb or b43 in your initramfs, which gets
loaded before the updated copy from compat-wireless becomes available.
Update your initramfs to either contain the new version, or no version
at all (in which case ssb and b43 will only be loaded after the root
partition is accessible).