On Thu, Dec 10, 2020 at 7:09 PM David Gibson <david@xxxxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, Dec 10, 2020 at 10:04:47AM +0100, John Paul Adrian Glaubitz wrote: > > On 12/10/20 10:01 AM, John Paul Adrian Glaubitz wrote: > > > I have not done any bisecting yet, but this is most likely a result of someone casting > > > a pointer of type A into a pointer of type B which is normally not allowed but unfortunately > > > also not something that gcc complains about. > > > > Hmm, it seems someone fixed the issue on git master already: > > Right, alignment issues have been a perennial problem. We find some > platform that has alignment constraints that break, fix that, then > someone finds the alignment fixups cause horrible performance > problems, repeat ad nauseum. > > There's been another round of this pretty recently, which is probably > the cause of the fixup. I just hope the re-optimizations that Tom > Rini has in his pipeline don't break things again for you. I think the case here is dtc, not libfdt. My guess is something to do with marker handling writing out dts. Rob
