Boot hangs on Switching to clocksource tsc ??

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https://bbs.archlinux.org – Today when I booted up my system, it hung with the following message:note: scsi_eh_3[57] exited with preempt_count 1tsc: Refined TSC clocksource calibration: 2699.999 MHzSwitching to clocksource tscthen it just hangsI can't even get into a terminal to see what is going on.  Is there a boot option I can set in GRUB?  I'm at a loss and I need to access my files today.thank you glenn69 https://bbs.archlinux.org/profile.php?id=12643 2012-10-16T14:17:18Z (HowTos)