linux-kernel - Re: linux panic on 4.0.0-rc4

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Date:	Mon, 16 Mar 2015 09:30:34 -0400
From:	Pranith Kumar <bobby.prani@...il.com>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	"open list:LINUX FOR POWERPC..." <linuxppc-dev@...ts.ozlabs.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux panic on 4.0.0-rc4

On Mon, Mar 16, 2015 at 4:16 AM, Michael Ellerman <mpe@...erman.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@...il.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
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