On 30 Jul 2008, at 23:02, John Martin wrote: > Chris Ridd wrote: >> It (a Dell Precision 470) appears to just have a single switch to >> disable "the" USB controller. My kbd and mouse are both USB (looks >> like they're on uhci#2), so disabling USB entirely would make the >> machine hard to use :-) >> >> > Can you do: > > # echo "::prtusb" | mdb -k > > It may be there is a device connected to uhci#2 for which the > interrupt > gets stuck.
Currently (no interrupt storm) it prints INDEX DRIVER INST NODE VID.PID PRODUCT 1 ehci 0 pci1028,169 0000.0000 No Product String 2 uhci 0 pci1028,169 0000.0000 No Product String 3 uhci 1 pci1028,169 0000.0000 No Product String 4 uhci 2 pci1028,169 0000.0000 No Product String 5 uhci 3 pci1028,169 0000.0000 No Product String 6 hid 0 mouse 046d.c016 Optical USB Mouse 7 hid 1 keyboard 413c.2003 Dell USB Keyboard I don't think anything's ever recently connected to uhci#2, but I'll have to work out exactly which ports that owns. Experimenting yesterday showed that ehci owns the ports on the front of the box. Cheers, Chris
