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Re: page fault handling

To: Rabeeh Khoury <rabeeh@galileo.co.il>
Subject: Re: page fault handling
From: Ralf Baechle <ralf@uni-koblenz.de>
Date: Mon, 22 May 2000 21:17:55 +0200
Cc: "linux-mips@fnet.fr" <linux-mips@fnet.fr>
In-reply-to: <39295261.94FE4CF5@galileo.co.il>; from rabeeh@galileo.co.il on Mon, May 22, 2000 at 11:29:38AM -0400
References: <39295261.94FE4CF5@galileo.co.il>
On Mon, May 22, 2000 at 11:29:38AM -0400, Rabeeh Khoury wrote:

> I'm having trouble with running processes on kernel 2.2.12, here is the
> do_page_fault printk's (changed #if 0 to #if 1) from two kernels (The
> kernel is just booting up and reading init process, in my case using
> root-NFS)

[...]

> kernel 2.2.12 - the address entry is 00000000 - why ?
> 
> [init:1:00000000:0:800d55d4]

> Can you speculate the next point that I should debug ?

As you noticed the address is zero which normally can not happen.  So
you should research where the kernel gets this zero address from.  My
next step would be to see which function the epc address 0x800d55d4
belongs to and further analyze things from that point on.

  Ralf

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