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Question concerning memory initialization (4M->64M)

To: sgi-mips <linux@cthulhu.engr.sgi.com>, linux-mips <linux-mips@fnet.fr>, linux-mips <linux-mips@vger.rutgers.edu>
Subject: Question concerning memory initialization (4M->64M)
From: Jeff Harrell <jharrell@ti.com>
Date: Wed, 09 Feb 2000 13:35:58 -0700
Sender: owner-linuxmips@oss.sgi.com
 
I have run into an interesting problem and would like to run it past this newsgroup
to see if anyone has any experience in these areas.  I am running kernel 2.3.22 and
have upgraded my memory space from ~4M (0x400000) to ~64M (0x4000000).  I run the 4M
version of the kernel and have no problems but when I run the 64M version, I run
into problems during the mem_init() portion of the code.  Specifically during the
free_page(tmp) call during the determination of totalram, codepages and datapages.
It looks like it is failing during the call to remove_mem_queue() within free_pages_ok().
I am seeing the next->prev and prev->next  set to 0 causing a page fault.   Is there
anything that anyone is aware of that I would need to change (beyond mips_memory_upper)
that would enable me to increase available memory to 64M.  Any insights would be greatly appreciated.

Thanks
Jeff

Additional information:
------------------

high memory: 0x83fff000  start memory: 0x80433000

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jeff Harrell                    Work:  (801) 619-6104 
Broadband Access group/TI       
jharrell@ti.com
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