Comment 27 for bug 89746

I have an HP Pavilion dv6125om which is having this issue in both Feisty and Gutsy Tribe 4, both running in amd64 mode with the ubuntu generic kernel. If I boot without special boot params, it will hang with the splash screen progress bar at around 13%. If I boot with "noapic noirqpoll" things boot up ok, but about 75% of my total CPU (as shown in top, both cores combined) is used in hard interrupt state, and it appears ehci_hcd is the culprit based on /proc/interrupts. I'm running the latest bios (F.38 from July 2007).

I upgraded to Gutsy because based on the resolution of the following bug report I thought this issue may have been fixed:
http://bugzilla.kernel.org/show_bug.cgi?id=7562

I too am willing to provide what I can to help get this resolved. I'd really like to see this box performing the way it should. Thanks.