linux panic on 4.0.0-rc4

[Pranith Kumar]

On Mon, Mar 16, 2015 at 4:16 AM, Michael Ellerman <mpe at ellerman.id.au> wrote:
> On Mon, 2015-03-16 at 01:34 -0400, Pranith Kumar wrote:
>> On Mon, Mar 16, 2015 at 1:11 AM, Pranith Kumar <bobby.prani at gmail.com> wrote:
>> > Hello,
>> >
>> > I have a power mac mini 32-bit system.
>> >
>> ...
>> > You can see the panic message here: http://imgur.com/s1lH15g. (there
>> > is no log and I have no serial console).
>>
>> There was some debug code in there when it hit. The actual hang seems
>> to be in printk_late_init(). It does not return from this. May be this
>> is a hint?
>
> That is where the boot consoles get disabled and it switches to the "real"
> console. It suggests that the system is not "hung" there but you just lost
> output.
>
> Try booting with "keep_bootcon" ?

I tried this and got to the same place as in the first mail:
http://imgur.com/s1lH15g

There is a kernel panic with the message printed. Any more suggestions
to how to debug this?

-- 
Pranith