is ioremap() failing or is vmalloc failing ?

    ioremap should just assign a virtual address to a physical address - does it actually allocate anything ?
    I beleive I am ioremap()ing a greater than 64MB Flash ROM and I do not think it is failing.

Alex Zeffertt wrote: 
Phil Nitschke wrote:
  
Hi all,

I have 2 GB memory on a 7448 processor, and want to reserve a huge chunk
of it at boot-time, then ioremap() it into the kernel space inside a
device driver.  So far I've succeeded with 64 MB, but can't go any
higher, as mm/vmalloc.c tells me: "allocation failed: out of vmalloc
space - use vmalloc=<size> to increase size."

    

I remember reading in Linux Device Drivers that you can use the bigphysarea
patch to allocate large memory, as long as you do it at boot time.  It seems
it's been ported to 2.6 too:

	http://lwn.net/Articles/111132/

Alex
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-- 
Dave Lynch 					  	    DLA Systems
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