On Mon, 12 Sep 2005 08:41:17 -0700, Stefan Nehlsen <sn at ParlaNet.de> wrote: > -3126060 093f b647 71af 8d62 1159 fbd0 3e30 e36b > +3126060 093f b647 71af 9d62 1159 fbd0 3e30 e36b Is it always the same bit position (0x1000 here)? If so, might be faulty RAM... You probably already know about memtest, or running continuous kernel compiles and looking for random segvs. HTH