Re: PANIC: early exception 08 rip 246:10 error ffffffff810251b5 cr20

[Justin P. Mattock]

Valdis.Kletnieks@xxxxxx wrote:
> On Tue, 27 Oct 2009 12:07:34 PDT, "Justin P. Mattock" said:
>
>    
> > The results are similar with the messages, except
> > with the curly's the system will panic the same as above
> > and not boot.
> >      
>
> As I expected - I explained why already.  And in fact, I intentionally did
> that, so that the *last* one of those added messages before your panic
> will output the info regarding the device that caused it (hacking around
> the panic would mean that you'd get a whole bunch of messages and not have
> an easy way to tell *which one* caused the now-bypassed issue...)
>
>    
> > (So I guess it was good to forget the curly's
> > to some extent).
> >      
>
> So out of curiosity, what did the messages actually *SAY*?  They should
> be pointing at the device that's giving your system indigestion, so it's
> useful to actually include the output (I didn't pull that printk format
> string out of thin air.. ;)
>
>    
So after looking around I managed to get the machine to boot
by commenting out(just to see) some calls in
init_ohci1394_controller

these are the ones:

set_fixmap_nocache(FIX_OHCI1394_BASE, ohci_base);

init_ohci1394_reset_and_init_dma(&ohci);


Then kind of isolating the issue I looked into
set_fixmap_nocache
Now looking at fixmap.h I see some comments about
x86_64 integration, leading me to believe maybe this is what/why
I'm hitting a panic.

Justin P. mattock




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