Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
i2c Keywest Kernel boot problem on new G5s
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Gentoo on PPC
View previous topic :: View next topic  
Author Message
jjhursey
n00b
n00b


Joined: 26 May 2005
Posts: 2
Location: Indiana/USA

PostPosted: Thu May 26, 2005 5:54 pm    Post subject: i2c Keywest Kernel boot problem on new G5s Reply with quote

We recently acquired a new Dual G5 2.3 GHz desktop system from Apple (PowerPC 7,3), and tried to install Gentoo on it using the install-ppc64-g5-minimal-2005.0.iso install. After entering the default response at the first prompt [G5], the system starts booting then produces a kernel panic of the form (I have a literal screen shot if you are interested in all the details):

=======
i2c /dev entries driver
Oops: kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=2 POWERMAC
Modules linked in:
<snip>
NIP [ ] .create_iface+0x154/0x550
LR [ ] .create_iface+0x128/0x550
Call Trace:
.create_iface
.of_device_probe
.driver_probe_device
.driver_attach
.bus_add_driver
.driver_register
.of_register_driver
.i2c_keywest_init
.init
.kernel_thread
Instruction dump:
=======

Seems that it is an issue with i2c keywest in the new hardware from Apple.
After taking a look around on the ozlabs.org site, I found this thread:
http://ozlabs.org/pipermail/linuxppc64-dev/2005-May/004129.html
which ended in a patch for this problem:
http://ozlabs.org/pipermail/linuxppc64-dev/2005-May/004135.html

We would really like to run Gentoo on these sytems as soon as possible, so if anyone has some spare moments to apply the patch and rebuild the iso, I would be willing to work with them to get it running on these systems. I don't have a Linux PPC64 box to build on, so I need a hand getting the kernel in place. I am also unfamiliar with the kernel configuration options that Gentoo uses for its install disks, I would be interested in learning though.

Cheers,
Josh
Back to top
View user's profile Send private message
k0fcc
n00b
n00b


Joined: 13 Nov 2004
Posts: 10
Location: Colorado, USA

PostPosted: Tue May 31, 2005 7:59 am    Post subject: Reply with quote

If you get not response here more knowledgable, jump over to the irc channel (gentoo ppc 64) and see if you can find corsair or tgall_foo and let them know.
Back to top
View user's profile Send private message
jjhursey
n00b
n00b


Joined: 26 May 2005
Posts: 2
Location: Indiana/USA

PostPosted: Wed Jun 01, 2005 8:14 pm    Post subject: Update Reply with quote

As an update.
We have been able to compile the kernel with the patch from here:
http://ozlabs.org/pipermail/linuxppc64-dev/2005-May/004140.html

After rebuilding the iso, it allows for progress in the startup. So that patch seems to work to fix this problem.

Thus, it should just be a matter of adding it to the list of patches for the linux kernel.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo on PPC All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum