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From: "Ameya Mitragotri" <ameya.mitragotri@wipro.com>
To: linux-ia64@vger.kernel.org
Subject: RE: Problem with accessing page tables
Date: Sat, 08 Nov 2003 07:58:59 +0000	[thread overview]
Message-ID: <marc-linux-ia64-106827833908491@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106826502101883@msgid-missing>

>   Ameya> One of the checks below fails because the call 
> pmd_offset gives pmd 
>   Ameya> With value o.
> 
> That means the PTE directory hasn't been allocated yet.  
> Perfectly normal for memory that hasn't been accessed yet.

We passed the address of swapper_pg_dir and this is what we got.

Nov  8 12:29:35 i2 kernel: The swapper_pg_dir address is
a0000001008d6000
Nov  8 12:29:35 i2 kernel: The pgd offset is 280 address of pgd entry is
a0000001008d6000 value @ pgd entry is 2146033664
Nov  8 12:29:35 i2 kernel: The pmd offset is 201 pmd address is
e00000007fe9f008
value @ pmd is 0

Now I think the memory for the swapper_pg_dir has already been
allocated.
I still get PMD as 0.

Am I doing something fundamentally wrong?

Thanks
ameya

  parent reply	other threads:[~2003-11-08  7:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-08  4:28 Problem with accessing page tables Ameya Mitragotri
2003-11-08  7:10 ` David Mosberger
2003-11-08  7:58 ` Ameya Mitragotri [this message]
2003-11-10 21:45 ` David Mosberger
2003-11-11  5:14 ` Ameya Mitragotri
2003-11-11  7:33 ` David Mosberger

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