[OLPC-devel] Re: Weekly work summary [6/12]

[David Woodhouse]

On Mon, 2006-07-10 at 13:45 -0600, Ronald G Minnich wrote:
> >>Probing CS553x NAND controller CS#0 at MMIO 0x20000000
> >>BUG: unable to handle kernel paging request at virtual address c7800000
> > 
> > 
> >>This makes ZERO sense to me at present. This appears to be the kernel 
> >>kmalloc'ing data above the top of memory, where the frame buffer lives. EH?
> > 
> > 
> > Ohh - I saw that too!  I thought I did something wrong.  I didn't notice that
> > it was writing clear at the top of memory.  I wonder if we need to pass a 
> > mem= command line option into the kexeced kernel?
> 
> no, because if you look it knows how big memory is, and if you make the 
> kernel+initrd < 1M, it works fine. Although, I found out last night, if 
> you make the mtd stuff a module, it works fine.
> 
> Very weird. 

Indeed. Is that the address we got back from ioremap? 

-- 
dwmw2