Hi, David Miller wrote: [Fri Oct 04 2013, 02:00:59PM EDT] > From: Bob Picco <bpicco@xxxxxxxxxx> > Date: Fri, 4 Oct 2013 11:45:55 -0400 > > > We seem to have our first issue with THP. > > > > I first encountered it with "ld". A THP enabled value of "never" resolved the > > issue. > > > > Verified no issue on four level page table. Also no issue on x86_64 with > > 3.7.x and 3.11 with unmodified test code. > > You may want to see if reverting the last patch in my series makes the > problem go away, as a data point. I examined 9/9 very closely yesterday and under the tranquility of rain noise. I didn't spot an issue. > > It's the trickiest change, as it changes the PMD layout completely. > > If the problem persists, the next point to check is where the huge > page size gets adjusted to 8MB from 4MB. Try reverted to just before > that change and test again. That's the other major possible source of > errors. Yes, I suspected this and the reason for bottom up. It seems to be here. With 9/9 and 8/9 reverted, the issue persists. Virgin 3.11 is solid. Of course there is always the possibility of mistake(s). I've obviously missed an issue. Looking... -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
