On Wed, Dec 25, 2013 at 02:54:19AM +0100, Emmanuel Dreyfus wrote: > Thor Lancelot Simon <t...@panix.com> wrote: > > > For what it's worth, I've been *very* busy, but there's not actually much > > left to do on the maxphys branch > > I gave it a try, and here is the result on i386: > /netbsd: mpii0: error 27 loading dmamap > /netbsd: st0(mpii0:0:3:0): passthrough: adapter inconsistency
I didn't do any work on the mpii driver -- I don't really know much about it. I could probably put my hands on suitable hardware. It looks like the problem is that the driver has a bug -- it is only using enough bus_dma segments to support a transfer smaller than the requested 512K, but trying to set up the full transfer anyway. Looking at the driver I'm a little confused exactly where it's going wrong but I note a bunch of XXXes around its use of MAXPHYS. I also notice it has its own minphys() method which _should be_ constraining the size of this transfer (since it should be the minphys on the scsipi channel) but seemingly is not! That's also worrisome. Thor
