Re: Highmemory Problem with RHEL3 .... 2.4.21-5.ELsmp

[Zachary Amsden]

Fawad Lateef wrote:

> 	if ((unsigned long)(page - mem_map) > 0x80000) {
> 		SetPageReserved(page);
> 		set_bit(PG_highmem, &page->flags);
> 		atomic_set(&page->count, 0xC4);
>  

That seems like a hackish thing to do.  Could you mistake other pages 
with the same count as pages you have reserved?

> After this in my module, i simply use kmap_atomic to map the page
> reserved by me and tried to use that ........ its working perfect in
> both 2.4.x series and also working in 2.6.x .....
>  

This suggests a problem with RHEL3.  If it works fine on a vanilla 2.4 
kernel, then by all means try to get support from your vendor.  If it 
works fine on the latest 2.4.X and 2.6.X linux-kernel is probably not 
the best place to look for help, although I can't blame you for trying.  
Maybe someone here already knows the answer, but unfortunately, it is 
not me.

Sorry if I missed context from your earlier posts.

Zach
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