alanh@fairlite.demon.co.uk wrote:

> Grrr, yes, it did continue but it took about 5 minutes and is now stuck
> at the scsibus0: waiting 2 seconds for devices to settle.
> 
> So, it didn't crash either as it did in the 3.1 kernel.

Hmm, is "wdc0 at mainbus0" probed properly on both stock
and patched 4.0_RC5 kernels? Could you post dmesg?

The hangup might be caused by spurious interrupt storm,
but it should be handled in another PR..
---
Izumi Tsutsui