Re: [CentOS] Issues installing x86_64 5.1 on Ultra 40

Try "acpi=noirq" as a kernel argument. Some AMD chipsets have problems letting the OS know what irq the 8250 timer is on, the nvidia one is definitely a problem, I have the same chipset in a couple of Dell Dimension e521 desktops :-(

Alright, this didn't solve the issue either. So far:

- noacpi noapic (No effect) - New SATA drive (No effect) - acpi=noirq (No effect) - BIOS update to 1.6 (No effect)

Grabbing a copy of RHEL 5.1 now and we'll throw this over to RH support I guess and file something in bugzilla over there.

Gotta be something funky in sata_nv.

Thanks everyone for your responses.

Ray