Some notes from my testing. DMESG after a reboot - The system locks 6 times, here are the lock ups plus what immediately precedes them.
[ 42.595211] input: USB HID v1.00 Mouse [Microsoft Microsoft Wheel Mouse Optical®] on usb-0000:00:10.1-2 [ 42.595225] usbcore: registered new interface driver usbhid [ 42.595228] drivers/usb/input/hid-core.c: v2.6:USB HID core driver [ 68.032891] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 106.221210] skge eth0: enabling interface [ 107.888688] skge eth0: Link is up at 100 Mbps, half duplex, flow control none [ 136.306699] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 170.722289] lp0: using parport0 (polling). [ 170.763665] ieee1394: Initialized config rom entry `ip1394' [ 201.006966] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 201.260754] EXT3 FS on sda3, internal journal [ 231.478370] ata1.00: limiting speed to UDMA/100:PIO4 [ 231.478375] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [10889.413852] ISO 9660 Extensions: Microsoft Joliet Level 3 [10889.415648] ISO 9660 Extensions: RRIP_1991A [10917.763403] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [10947.987814] SCSI device sda: 490234752 512-byte hdwr sectors (251000 MB) [10948.003947] sda: Write Protect is off [10948.003950] sda: Mode Sense: 00 3a 00 00 [10948.024838] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA [10983.654841] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen -- Hard disk I/O randomly freezes when hald is running and optical drive is empty https://launchpad.net/bugs/84603 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
