A BIOS upgrade to current version 2.21 did not help. The problem only occurs with the 2.6.22-14-rt kernel, 2.6.22-14-generic boots fine. I also tested with 2.6.24-12-rt from hardy alpha, which shows the same symtomes: The system freezes after printing "Loading saved-state of the serial devices". The -generic kernel prints "Too much work for IRG 3" after this message and boots up nicely. Adding "pci=noacpi" to the -rt kernel commandline gives me
ata1: SATA link up 1.5 Gbps (Sstatus 112 Scontrol 300)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1: port is slow to respond, please be patient (Status 0x80)
ata1: COMRESET failed (errno=-16)
already much earlier during the boot process. Using SATA compatibility mode in BIOS also does not help.
Same issue here on a Thinkpad T60.
A BIOS upgrade to current version 2.21 did not help. The problem only occurs with the 2.6.22-14-rt kernel, 2.6.22-14-generic boots fine. I also tested with 2.6.24-12-rt from hardy alpha, which shows the same symtomes: The system freezes after printing "Loading saved-state of the serial devices". The -generic kernel prints "Too much work for IRG 3" after this message and boots up nicely. Adding "pci=noacpi" to the -rt kernel commandline gives me
ata1: SATA link up 1.5 Gbps (Sstatus 112 Scontrol 300)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1: port is slow to respond, please be patient (Status 0x80)
ata1: COMRESET failed (errno=-16)
already much earlier during the boot process. Using SATA compatibility mode in BIOS also does not help.