Comment 39 for bug 285892

ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen.

I am facing the same problem on the N-128 Samsung Netbook with Ubuntu 9.10 UNR. The freeze happens for about 20 seconds after about 5 minutes of switching on. After that it dosen't repeat itself as long as the Netbook is ON. Next start again the same problem. Output from my dmesg:-

                        Monitor-Mwait will be used to enter C-2 state
[ 245.665234] Marking TSC unstable due to TSC halts in idle
[ 284.816184] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 284.816225] ata1.00: cmd ca/00:08:f6:1e:85/00:00:00:00:00/ed tag 0 dma 4096 out
[ 284.816232] res 40/00:ff:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
[ 284.816246] ata1.00: status: { DRDY }
[ 289.856117] ata1: link is slow to respond, please be patient (ready=0)
[ 294.840109] ata1: device not ready (errno=-16), forcing hardreset
[ 294.840133] ata1: soft resetting link
[ 295.022466] ata1.00: configured for UDMA/133
[ 295.022487] ata1.00: device reported invalid CHS sector 0
[ 295.022516] ata1: EH complete