Since Ubuntu Edgy, It seems, that this problem is gone away. I put the Laptop under heavy I/O but the system worked perfectly, without problems or freeze.
** Also affects: linux (upstream) Importance: Undecided Status: Unconfirmed -- High I/O sometimes couse dma timeout errors https://launchpad.net/bugs/50190 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs