This bug affects me too.

I have an Asus EEE Box that I use as home server (with Ubuntu Server 8.10).
Sometimes the server stops working, I think because it cannot access the hard drive (Seagate ST9160310AS). 

I got this impression from the fact that services such as apache and ssh respond to user input but they cannot proceed beyond the point where they have to load data from the hd.
For example, ssh asks me the password but he cannot proceed beyond that.

After the reboot I always read messages like these:

Mar 25 02:23:40 fatso -- MARK --
Mar 25 02:43:40 fatso -- MARK --
Mar 25 02:45:01 fatso kernel: [208911.040236] ata1: link is slow to respond, please be patient (ready=0)
Mar 25 02:45:06 fatso kernel: [208916.022648] ata1: device not ready (errno=-16), forcing hardreset
Mar 25 02:45:06 fatso kernel: [208916.022683] ata1: soft resetting link
Mar 25 02:45:07 fatso kernel: [208917.301094] ata1.00: configured for UDMA/133
Mar 25 02:45:07 fatso kernel: [208917.301157] ata1: EH complete
Mar 25 02:45:07 fatso kernel: [208917.302249] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
Mar 25 02:45:07 fatso kernel: [208917.302688] sd 0:0:0:0: [sda] Write Protect is off
Mar 25 02:45:48 fatso kernel: [208917.303605] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Mar 25 02:45:48 fatso kernel: [208952.360177] ata1: link is slow to respond, please be patient (ready=0)
Mar 25 02:45:48 fatso kernel: [208957.350166] ata1: device not ready (errno=-16), forcing hardreset
Mar 25 02:45:48 fatso kernel: [208957.350200] ata1: soft resetting link
Mar 25 02:45:48 fatso kernel: [208957.963604] ata1.00: configured for UDMA/133
Mar 25 02:45:48 fatso kernel: [208957.963662] ata1: EH complete
Mar 25 02:45:48 fatso kernel: [208957.975045] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
Mar 25 02:45:48 fatso kernel: [208957.975179] sd 0:0:0:0: [sda] Write Protect is off
Mar 25 02:45:48 fatso kernel: [208957.975405] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Mar 25 02:46:23 fatso kernel: [208993.010175] ata1: link is slow to respond, please be patient (ready=0)
Mar 25 02:46:28 fatso kernel: [208997.990181] ata1: device not ready (errno=-16), forcing hardreset
Mar 25 02:46:28 fatso kernel: [208997.990213] ata1: soft resetting link
Mar 25 02:46:28 fatso kernel: [208998.391096] ata1.00: configured for UDMA/133
Mar 25 02:46:28 fatso kernel: [208998.391159] ata1: EH complete
Mar 25 02:46:28 fatso kernel: [208998.392151] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
Mar 25 02:46:28 fatso kernel: [208998.392575] sd 0:0:0:0: [sda] Write Protect is off
Mar 25 02:46:28 fatso kernel: [208998.393564] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Mar 25 02:56:20 fatso kernel: [209589.702645] ata1: link is slow to respond, please be patient (ready=0)
Mar 25 02:56:26 fatso kernel: [209594.680132] ata1: device not ready (errno=-16), forcing hardreset
Mar 25 02:56:26 fatso kernel: [209594.680164] ata1: soft resetting link
Mar 25 02:56:26 fatso kernel: [209596.061012] ata1.00: configured for UDMA/133
Mar 25 02:56:26 fatso kernel: [209596.061074] ata1: EH complete
Mar 25 02:56:26 fatso kernel: [209596.062818] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
Mar 25 02:56:26 fatso kernel: [209596.117304] sd 0:0:0:0: [sda] Write Protect is off
Mar 25 02:56:26 fatso kernel: [209596.118987] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Mar 25 02:57:01 fatso kernel: [209631.302696] ata1: link is slow to respond, please be patient (ready=0)
Mar 25 02:57:07 fatso kernel: [209636.282714] ata1: device not ready (errno=-16), forcing hardreset
Mar 25 02:57:07 fatso kernel: [209636.282748] ata1: soft resetting link
Mar 25 02:57:07 fatso kernel: [209637.091056] ata1.00: configured for UDMA/133
[and there are TONS more like this...]

Have a look on the attachments for more details on my system.

Cheers,

Giordano