Everything works now. skbuff.c seems to be ok. At the end it seems to be an issue between one of my three memory modules and the installed Promise ide controller. Without the Promise controller everythink works and with a changed memory stick also everything works. I did a lot of memtests but no error was shown. I think one of the memory modules has some electrical specialties when used together with the Promise controller. Thanks a lot to everybody who tried to shed some light on this. -- Mit freundlichen Gruessen/Best regards, Sebastian Piecha EMail: spi@gmxpro.de - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html