svn commit: r195960 - in head/sys/dev/usb: . controller input

[Navdeep Parhar]

On Wed, Jul 29, 2009 at 5:14 PM, Alfred Perlstein<alfred at freebsd.org> wrote:
> Author: alfred
> Date: Thu Jul 30 00:14:34 2009
> New Revision: 195960
> URL: http://svn.freebsd.org/changeset/base/195960
>
> Log:
>  USB CORE:
>  - Add minimum polling support to drive UMASS
>    and UKBD in case of panic.
>  - Add extra check to ukbd probe to fix problem about
>    mouse devices attaching like keyboards.
>  - P4 ID: 166148
>
>  Submitted by: hps
>  Approved by:  re

This has slowed down core dumps very significantly.  What used to take 10-15s on
my system now takes around 3 minutes.  A simple test is to break into ddb and
"call doadump" with or without this rev.  I have a serial console on
this machine
and so I can use ddb whether the attached USB keyboard works or not.

Here is the usbconfig from the machine:
ugen0.1: <UHCI root HUB Intel> at usbus0, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON
ugen1.1: <UHCI root HUB Intel> at usbus1, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON
ugen2.1: <UHCI root HUB Intel> at usbus2, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON
ugen3.1: <UHCI root HUB Intel> at usbus3, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON
ugen4.1: <EHCI root HUB Intel> at usbus4, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON
ugen1.2: <product 0x7000 vendor 0x0557> at usbus1, cfg=0 md=HOST
spd=FULL (12Mbps) pwr=SAVE
ugen1.3: <USB Multimedia Keyboard BTC> at usbus1, cfg=0 md=HOST
spd=LOW (1.5Mbps) pwr=ON
ugen1.4: <USB-PS/2 Optical Mouse Logitech> at usbus1, cfg=0 md=HOST
spd=LOW (1.5Mbps) pwr=ON

Regards,
Navdeep