On Thu, 2008-01-31 at 16:10 -0600, Rune Torgersen wrote: > Scott Wood wrote: > > Scott Wood wrote: > >> Nathan Lynch wrote: > >>> Is the crashing program multithreaded? The first report had firefox > >>> triggering the oops. > >> > >> OK, I've got a test program that triggers it now. I'll see if I can > >> figure out what's going on. > > > > The problem seems to be that update_mmu_cache() is called on a guard > > page with no access rights. > > > > Changing update_mmu_cache() to always call flush_dcache_icache_page() > > fixes it, though a better performing fix would probably be to add an > > exception table entry for the dcbst. > > I can confirm that this seems to fix it.
Might be better to avoid the flush when the page isn't readable ? Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
