Linux Ubuntu freezing at boot, ATA1 hard resetting
Update: Clocksource not the problem, forced HPET.
I have a problem with my Linux Ubuntu gaming computer that I've had ever since I switched over from Windows 7 to Ubuntu (clean install) about half a year ago.
It doesn't happen all of the time but it happens quite often when I turn on the computer and/or restart it; before you get the Ubuntu splash screen Linux freezes completely (it does get past Grub), shows me a blue screen where I can see black borders on each side and my GPU fan is spinning at maximum.
At some point, usually a minute or three although occasionally never, Ubuntu kicks in and I get the log-in screen. GPU fan slows down. (Might be unrelated, happened with both Open source and closed source drivers)
The below error message I sometimes see pop up after this problem has occured:
[ 324.800932] ata1.00: status: { DRDY }
[ 324.800935] ata1: hard resetting link
Now when I pull out the entire log the below seems interesting: cat /var/dmesg:
[ 324.800286] Clocksource tsc unstable (delta = 299965995419 ns)
[ 324.800919] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 324.800925] ata1.00: failed command: IDENTIFY PACKET DEVICE
[ 324.800930] ata1.00: cmd a1/00:01:
[ 324.800930] res 40/00:03:
[ 324.800932] ata1.00: status: { DRDY }
[ 324.800935] ata1: hard resetting link
[ 324.802130] Switching to clocksource hpet
[ 325.289945] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 326.091717] ata1.00: configured for UDMA/100
[ 326.892313] ata1: EH complete
Hard drivepasses S.M.A.R.T tests and has no bad sectors. Had no problems under Windows 7 which ran for years. Problem occured right from the get-go installing Ubuntu about 6 months ago. Computer is stable once it has booted.
AMD Phenom(tm) II X4 925 Processor
Gigabyte GA-790XTA-UD4 mainboard
AMD/ATI RadeonHD5770
Does anyone know if the errors I see are related to the freezing? How do I resolve the problem?
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