Hi, FYI, Running 2.6.15-rc5 on a Dell Inspiron 700m during a kernel compile as well as other heavy disk access I saw (syslog & .config attached). Don't know if it is reproducible: Dec 19 06:51:17 localhost kernel: hda: dma_timer_expiry: dma status == 0x21 Dec 19 06:51:29 localhost kernel: hda: DMA timeout error Dec 19 06:51:29 localhost kernel: hda: dma timeout error: status=0xd0 { Busy } Dec 19 06:51:29 localhost kernel: ide: failed opcode was: unknown Dec 19 06:51:29 localhost kernel: hda: DMA disabled Dec 19 06:51:29 localhost kernel: ide0: reset: success Dec 19 07:08:07 localhost -- MARK -- Dec 19 07:08:46 localhost kernel: attempt to access beyond end of device Dec 19 07:08:46 localhost kernel: hda3: rw=0, want=6727729416, limit=99619065 Dec 19 07:08:46 localhost kernel: attempt to access beyond end of device Dec 19 07:08:46 localhost kernel: hda3: rw=0, want=6468239752, limit=99619065 Dec 19 07:08:46 localhost kernel: attempt to access beyond end of device Dec 19 07:08:46 localhost kernel: hda3: rw=0, want=6727729416, limit=99619065 Dec 19 07:09:15 localhost kernel: attempt to access beyond end of device Dec 19 07:09:15 localhost kernel: hda3: rw=0, want=6727729416, limit=99619065 Dec 19 07:09:48 localhost kernel: EXT3-fs error (device hda3): ext3_free_blocks: Freeing blocks not in datazone - block = 808525856, count = 1 Dec 19 07:09:48 localhost kernel: Aborting journal on device hda3. Dec 19 07:09:48 localhost kernel: EXT3-fs error (device hda3): ext3_free_blocks: Freeing blocks not in datazone - block = 540553529, count = 1 ... =aaron=