>>>>> "Arjan" == Arjan van de Ven <[EMAIL PROTECTED]> writes:
Arjan> On Tue, 2005-02-22 at 17:30 -0500, Jes Sorensen wrote: >> For userspace it's used by some of the MPI type apps in userland. Arjan> you got to be kidding. Why are these MPI apps accessing memory Arjan> that the kernel has mapped cached (eg ram) via /dev/mem? Oh sorry, I think we're misunderstanding eachother. /dev/mem is used by lcrash. Arjan> (eg my proposal is to make /dev/mem to be just device memory Arjan> not kernel accessable ram; wouldn't that solve the entire issue Arjan> cleanly ?) It would kill lcrash support, but sure it would solve this specific problem. However what happens if someone wants to share say some texture ram between the kernel and a video card and that has to be mapped uncached? Though up example here though. Cheers, Jes - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
