Re: BUG: invalid MAX_DMA_ADDRESS macro for i386?

[Alan Cox]

> 	Well, I have tracked down my problem. We see a comparison
> like this to  determine whether to use a bounce buffer:
> 
> if ( virt_to_bus(addr+buflen) >= MAX_DMA_ADDRESS) {
> ...(use a bounce buffer 'cause that addr is not dma-able)...
> 
> 	This is not working, because MAX_DMA_ADDRESS is defined
> so:
> 
> ./include/asm-i386/dma.h:
> #define MAX_DMA_ADDRESS (PAGE_OFFSET+0x1000000)

MAX_DMA_ADDRESS is intended for checking virtual addresses not bus
addresses. 

Alan