> > On Tue, Jan 12, 2010 at 03:25:23PM -0600, Christoph Lameter wrote: > > > On Sat, 9 Jan 2010, Michail Bachmann wrote: > > > > [ 48.505381] kernel BUG at mm/page_alloc.c:775! > > > > > > Somehow nodes got mixed up or the lookup tables for pages / zones are > > > not giving the right node numbers. > > > > Agreed. On this type of machine, I'm not sure how that could happen > > short of struct page information being corrupted. The range should > > always be aligned to a pageblock boundary and I cannot see how that > > would cross a zone boundary on this machine. > > > > Does this machine pass memtest? > > I ran one pass with memtest86 without errors before posting this bug, but I > can let it run "all tests" for a while just to be sure it is not caused by > broken hw. Please disregard this bug report. After running memtest for more than 10 hours it found a memory error. The funny thing is, linux found it much faster... Thanks for your time. CU Micha