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Re: kernel hang indigo2 current cvs more specific

To: Florian Lohoff <flo@rfc822.org>
Subject: Re: kernel hang indigo2 current cvs more specific
From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Tue, 4 Apr 2000 10:59:43 +0200 (MET DST)
Cc: linux@cthulhu.engr.sgi.com
In-reply-to: <20000404102252.B276@paradigm.rfc822.org>
Sender: owner-linuxmips@oss.sgi.com
On Tue, 4 Apr 2000, Florian Lohoff wrote:
> On Tue, Apr 04, 2000 at 01:54:30AM +0200, Florian Lohoff wrote:
> > i debugged a bit arround and found that the current CVS kernel
> > hang at "alloc_page.c" (For SGI_IP22)
> > 
> >         lmem_map = (struct page *) alloc_bootmem_node(nid, map_size);
> > 
> > I had a small look into the function alloc_bootmem_node/core but didnt
> > understand a word.
> 
> Reduced it even more - At the end of alloc_bootmem_core the memset is
> the fault - It seems to overwrite something and/or does not return.
> 
> My suspicion is that the memory map(s) are not correct and initializing
> existing memory causes this fault.

Perhaps this helps: the bootmem stuff in arch/mips/ddb5074/prom.c works fine.
The DDB5074 has 64 MB of fixed non-upgradable memory at physical 0x00000000
virtual 0x80000000.

Gr{oetje,eeting}s,

                                                Geert

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