On Thu, Nov 05, 2015 at 09:51:59AM -0500, Lennart Sorensen wrote: > Hmm, I thought I had read that as of 2.6.38 and higher arm systems were > supposed to not generate the fault anymore, but maybe I misunderstood > it and they meant it sets fixup to enabled by default. > > I should check the SCTLR.A flag.
Of course the arm docs say it is off by default at reset, so something in either u-boot or the kernel seems like it must have to enable it explicitly. Well once I figure out how to read it I guess I will know. Of course if the memory happens to be flagged as something other than normal memory, then it should also fault. I wonder if a page used to dma data to/from a network driver would be flagged as normal memory or not. -- Len Sorensen _______________________________________________ Xenomai mailing list [email protected] http://xenomai.org/mailman/listinfo/xenomai
