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Re: panic: iomem allocation failure



On Mon, Nov 02, 2009 at 03:56:33PM +0100, Manuel Bouyer wrote:
> 
> If would be interesting to print what's happening in these functions between
> bge_attach and extent_alloc_region. AFAIK, memory-mapped IO can't be
> above 4Gb on x86, even on 64bit systems (or at last NetBSD doesn't support it
> in the native case).

It should work on amd64 -- the pci code has functions to handle 64-bit DMA,
doesn't it? -- the negotation of dual address cycle on parallel pci is
supposed to be magically handled behind the OS's back, I thought, and the
addresses just get wider, no?

It might be a lot more complicated with PAE, I don't know.

-- 
Thor Lancelot Simon                                        
tls%rek.tjls.com@localhost
    "Even experienced UNIX users occasionally enter rm *.* at the UNIX
     prompt only to realize too late that they have removed the wrong
     segment of the directory structure." - Microsoft WSS whitepaper


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