Re: panic: iomem allocation failure

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Nov 02, 2009 at 02:53:17PM +0100, Christoph Egger wrote:
> 
> Hi!
> 
> Booting an amd64 NetBSD Dom0, I got this panic:
> 
> [...]
> bge0 at pci8 dev 4 function 0: Broadcom BCM5714/5715 Gigabit Ethernet
> extent_alloc_region: extent `iomem' (0x0 - 0xffffffff)
> extent_alloc_region: start 0xb3ed988fd8410000, end 0xb3ed988fd841ffff
> panic: extent_alloc_region: region lies outside extent
> fatal breakpoint trap in supervisor mode
> trap type 1 code 0 rip ffffffff801fa9ad cs e030 rflags 246 cr2  0 cpl 8 rsp 
> ffffffff80e79090
> Stopped in pid 0.1 (system) at  netbsd:breakpoint+0x5:  leave
> breakpoint() at netbsd:breakpoint+0x5
> panic() at netbsd:panic+0x269
> extent_alloc_region() at netbsd:extent_alloc_region+0x91
> bus_space_map() at netbsd:bus_space_map+0x52
> pci_mapreg_submap() at netbsd:pci_mapreg_submap+0xd3
> pci_mapreg_map() at netbsd:pci_mapreg_map+0x2e
> bge_attach() at netbsd:bge_attach+0x163

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).

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           
Manuel.Bouyer%lip6.fr@localhost
     NetBSD: 26 ans d'experience feront toujours la difference
--