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MOL: Mapping GC at F3000000: Unmapped 'RAM-read-acces',08000000

MOL: Mapping GC at F3000000: Unmapped 'RAM-read-acces',08000000

Post by Martin Costabe » Fri, 28 Jan 2000 04:00:00




> Hello,

> I am trying to install MOL on my machine (Apus 2000),
> with an image of my machine ROM (systme 7.6.1), kernel 2.2.13 patched,
> and get the following error message:

> Any Idea?

> Mac-on-Linux 0.9.36
[]
> ** DEBUG: add_pci_device assigned IRQ: 0x18 **
> osi_enet: -----> Can't attach to interface <eth0>
[]
> Unmapping GC
> Mapping GC at F3000000
> SCSI-reset may be poorly implemented!

Where is the error message? This is all normal (except the bit about
eth0 not working). After all these messages, MOL should boot MacOS now.

--
Martin

 
 
 
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MOL: Mapping GC at F3000000: Unmapped 'RAM-read-acces',08000000

Post by Yves LE FEUVR » Sat, 29 Jan 2000 04:00:00


Answering to myself:


>> Hello,

>> I am trying to install MOL on my machine (Apus 2000),
>> with an image of my machine ROM (systme 7.6.1), kernel 2.2.13 patched,
>> and get the following error message:

>> Any Idea?

>> Mac-on-Linux 0.9.36
>[]
>> ** DEBUG: add_pci_device assigned IRQ: 0x18 **
>> osi_enet: -----> Can't attach to interface <eth0>
>[]
>> Unmapping GC
>> Mapping GC at F3000000
>> SCSI-reset may be poorly implemented!

I was simply using the wrong oftree. After using oftree.powerbase.180 and
zapping the nvram, everything almost went fine
(Still some problems with mouse in full screen mode)

Yves LE FEUVRE
Laboratoire de Neurobiologie des rseaux
CNRS & Universit bordeaux I UMR 5816


 
 
 
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1. What's the reason that /dev/mem can't map unreserved RAM?

Hi all,

What's the rational behind /dev/mem not being able to map unreserved RAM?
It can't be for protecting the system, because if you have access to
reserved RAM (kernel text) then you can modify the remap_pte_range to
allow for mapping of ram.

I have a user program for debugging kernel modules and the like, and it
uses /dev/mem to map ram and prints it out. But unless I take out the
check in remap_pte_range, I can't see allocated pages.

I just want to know the rational behind this.

Thanks,

-- Steve

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