Re: [Qemu-devel] sparc dma length bug(and fix) seen with NetBSD

[Blue Swirl]

On 7/1/08, Cliff Wright <address@hidden> wrote:
> Using QEMU 0.9.1 for sparc emulation, a dma length bug is seen with NetBSD.
>  When an 8192 byte block is read to memory using dma into non-contiguous
>  memory, the 2nd 4k block of contiguous memory is also written to.
>  This is due to an incorrect variable being used for length.
>  See the attached patch. I see the same bug on subversion trunk.

Excellent, with the patch in place I was able to install NetBSD 4.0 to
hard disk and boot to the installed system! The only wart was that
installer could not reboot the system, but that's probably a bug in
OpenBIOS (need to make reboot HW MMIO mapping more robust).