Rex Feany <rfe...@mrv.com> wrote on 30/09/2009 11:00:02: > > Thus spake Joakim Tjernlund (joakim.tjernl...@transmode.se): > > > > Ok, I have made some minor tweaks and added debug code in > > > do_page_fault(). Would be great if you could try on both > > > .31 and top of tree. > > > > > > Jocke > > > > OOPS, found a bug. Use this one instead: > > .31 - no change, it worked before your patch and it works after. > None of your debugging printks show up. I tried removing the tlbil_va() > from do_dcache_icache_coherency() and userspace goes back to be being > slow/non functional. > > top of tree - userspace is slow and unstable, random segfaults, > and none of your debugging printks show up :(
OK, something strange is going on. I am starting to suspect that there is some other problem here. If my patch is any good you should be able to use dcbx insn in copy_tofrom_user(). You could try changing all CONFIG_8xx to CONFIG_8xx_deleted arch/powerpc/lib/copy_32.S and see if that works and if you see any debug prints. Jocke _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
