Re: A problem loading ssb module

[Tim Gardner <tim.gardner@canonical.com>]

Luis R. Rodriguez wrote:
> On Sun, Sep 27, 2009 at 12:50:19PM -0700, Luis R. Rodriguez wrote:
>> On Sun, Sep 27, 2009 at 8:15 AM, Clyde McPherson <ccmcphe@verizon.net> wrote:
>>>
>>>> On Thu, Sep 24, 2009 at 11:33 AM, Hauke Mehrtens <hauke@hauke-m.de> wrote:
>>>>
>>>>> Bryan Wu wrote:
>>>>>
>>>>>> Mauro Di Domenico wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>> I'm testing new b43 modules for my 14e4:4315 broadcom card.
>>>>>>> I've compiled and installed compat-wireless-2009-09-16 in a debian
>>>>>>> machine with kernel version 2.6.30-6.
>>>>>>>
>>>>>>> During the boot I experience this problem:
>>>>>>>
>>>>>>> $ dmesg|egrep "b43|ssb"
>>>>>>>
>>>>>>> [    2.384463] b43-pci-bridge 0000:06:00.0: PCI INT A -> GSI 17 (level,
>>>>>>> low) -> IRQ 17
>>>>>>> [    2.384477] b43-pci-bridge 0000:06:00.0: setting latency timer to 64
>>>>>>> [    2.544344] ssb: Sonics Silicon Backplane found on PCI device
>>>>>>> 0000:06:00.0
>>>>>>> [    6.968981] b43: disagrees about version of symbol
>>>>>>> ssb_device_is_enabled
>>>>>>> [    6.968986] b43: Unknown symbol ssb_device_is_enabled
>>>>>>> [    6.969280] b43: Unknown symbol ssb_pmu_set_ldo_paref
>>>>>>> [    6.969407] b43: disagrees about version of symbol
>>>>>>> ssb_pcicore_dev_irqvecs_enable
>>>>>>> [    6.969410] b43: Unknown symbol ssb_pcicore_dev_irqvecs_enable
>>>>>>> .....
>>>>>>> ....
>>>>>>> ...
>>>>>>>
>>>>>>>
>>>>>> I faced the exactly same issue as Mauro did. +1 from me, but currently
>>>>>> have
>>>>>> no time to take a deeper look.
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>> Hi,
>>>>>
>>>>> I had the same problem with the ssb module and compat-wireless in ubuntu
>>>>> 9.04. The problem is that the ssb module is integrated into the
>>>>> initramfs image. The version out of the initramfs image is loaded on
>>>>> startup and not the version of compat-wireless. Running "sudo
>>>>> update-initramfs -u" after installing compat-wireless and restaing the
>>>>> system fixes the problem for me. Either Debian/Ubuntu should remove ssb
>>>>> form default initramfs image or compat-wireless should update the image
>>>>> with the install command. At least the compat-wireless documentation
>>>>> needs an update.
>>>>>
>>>>> Hauke
>>>>>
>>>>> (adding Luis and linux-wireless list)
>>>>>
>>>> Tim, do you guys update the initramfs upon installation of lbm? If a
>>>> user does not use lbm and uses compat-wireless I suppose we need to do
>>>> something similar.
>>>>
>>>>  Luis
>>>> _______________________________________________
>>>> Bcm43xx-dev mailing list
>>>> Bcm43xx-dev@lists.berlios.de
>>>> https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
>>>>
>>> All:
>>> I have a large group that uses the ssb module along with the Broadcom 4318,
>>> in a CF form factor. If the CF card is inserted before boot, and the ssb
>>> module is not in the initrd process, the laptops lock up and do not become
>>> operational. The solution to this problem is/was adding the ssb.ko to the
>>> initrd process. So I agree with Luis on this, the ssb module will have to be
>>> added/updated to the initrd process. As for PCI operations, I don't know,
>>> but for PCMCIA operations ssb.ko has to be added and/or updated. Anytime I
>>> am testing new releases of b43, I run "update-initramfs -u" to update the
>>> ssb module. (Sometimes you can do a rmmod ssb and rmmod b43, and then
>>> modprobe them back in. - This saves a reboot)
>> But why is ssb, b43, b44 needed upon early boot?
> 
> OK the reason seems to be netboot. Yeah the only fix for distros who want
> this on the initramfs is to update it after a compat-wireless package is
> installed. I suppose we can add a hook to compat-wireless for each distro.
> I'm only familiar with Ubuntu way of doing this so if people are interested
> in other distros you'll need to point/test how to do this on there.
> 
> Please try this patch against compat-wireless: (also attached)
> 
> From 99af88246c2de71aa799de2b63f9d9ccac41634f Mon Sep 17 00:00:00 2001
> From: Luis R. Rodriguez <lrodriguez@atheros.com>
> Date: Sun, 27 Sep 2009 13:58:22 -0700
> Subject: [PATCH] Add scripts/update-initramfs and use it
> 
> Some distributions may ship b44 and ssb on the initramfs for
> netboot. To help with this we need to update the initrafms
> for those distributions.
> 
> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
> ---
>  Makefile                 |    1 +
>  scripts/update-initramfs |   33 +++++++++++++++++++++++++++++++++
>  2 files changed, 34 insertions(+), 0 deletions(-)
>  create mode 100755 scripts/update-initramfs
> 
> diff --git a/Makefile b/Makefile
> index ab97de0..c7333a2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -65,6 +65,7 @@ install: uninstall install-modules install-scripts
>  install-modules: modules
>  	$(MAKE) -C $(KLIB_BUILD) M=$(PWD) $(KMODDIR_ARG) $(KMODPATH_ARG) \
>  		modules_install
> +	@./scripts/update-initramfs
>  
>  install-scripts:
>  	@# All the scripts we can use
> diff --git a/scripts/update-initramfs b/scripts/update-initramfs
> new file mode 100755
> index 0000000..412d885
> --- /dev/null
> +++ b/scripts/update-initramfs
> @@ -0,0 +1,33 @@
> +#!/bin/bash
> +# Copyright 2009        Luis R. Rodriguez <mcgrof@gmail.com>
> +#
> +# Since we provide ssb, the Ethernet module b44 some people may
> +# rely on it to netboot, so update the initrafms for each
> +# distribution.
> +#
> +# Note that in the future people may want to wireless-boot
> +# so this will help with that as well.
> +
> +LSB_RED_ID=$(/usr/bin/lsb_release -i -s)
> +
> +KLIB=/lib/modules/2.6.31-wl/build
> +ver=$(echo $KLIB | awk -F "/lib/modules/" '{print $2}' | awk -F"/" '{print $1}')
> +dir=/boot/
> +
> +case $LSB_RED_ID in
> +"Ubuntu")
> +	echo "Updating Ubuntu's initramfs for $ver under $dir ..."
> +	mkinitramfs -o $dir/initrd.img-$ver $ver
> +	echo "Will now run update-grub to ensure grub will find the new initramfs ..."
> +	update-grub
> +	;;
> +*)
> +	echo "Warning:"
> +	echo "You may or may not need to update your initframfs, you should if"
> +	echo "any of the modules installed are part of your initramfs. To add"
> +	echo "support for your distribution to do this automatically send a"
> +	echo "patch against $0. If your distribution does not require this"
> +	echo "send a patch against the '/usr/bin/lsb_release -i -s': $LSB_RED_ID"
> +	echo "tag for your distribution to avoid this warning."
> +        ;;
> +esac
> 

Luis - I'll do something similar in a post install script for Karmic LBM
since the install-modules target in your makefile isn't used for a
debian install.

rtg
-- 
Tim Gardner tim.gardner@canonical.com