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Re: kern/37884: nvidia ehci umass
> > System: NetBSD wormulon.kollasch.net 4.99.31 NetBSD 4.99.31 (WORMULON) #27:
> > Sat Jan 5 20:17:13 UTC 2008
> > root%wormulon.kollasch.net@localhost:/usr/src/sys/arch/amd64/compile/WORMULON
> > amd64
> This is quite an old kernel. Can you please confirm that the issue is
> still present with a 4.99.50 kernel?
Yes, the recent kernel still has the problem.
According to Microsoft KB925528, NVIDIA echi seems to have a bug
which can't do DMA against memory higher than 2G physicall address.
Maybe we could handle the quirk by MI bus_dmatag_subregion(9)
like if_bce.c, but the next problem is that ehci(4) driver
completely lacks bus_dmamap_sync(9) calls, as noted in
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