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Date:      Fri, 31 Jul 2009 00:45:18 -0700
From:      Navdeep Parhar <nparhar@gmail.com>
To:        Alfred Perlstein <alfred@freebsd.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r195960 - in head/sys/dev/usb: . controller input
Message-ID:  <d04e16b70907310045y635245efob33b10464c22524f@mail.gmail.com>
In-Reply-To: <200907300014.n6U0EZ77086341@svn.freebsd.org>
References:  <200907300014.n6U0EZ77086341@svn.freebsd.org>

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On Wed, Jul 29, 2009 at 5:14 PM, Alfred Perlstein<alfred@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:
> =A0USB CORE:
> =A0- Add minimum polling support to drive UMASS
> =A0 =A0and UKBD in case of panic.
> =A0- Add extra check to ukbd probe to fix problem about
> =A0 =A0mouse devices attaching like keyboards.
> =A0- P4 ID: 166148
>
> =A0Submitted by: hps
> =A0Approved by: =A0re

This has slowed down core dumps very significantly.  What used to take 10-1=
5s on
my system now takes around 3 minutes.  A simple test is to break into ddb a=
nd
"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=3D0 md=3DHOST spd=3DFULL (12M=
bps) pwr=3DON
ugen1.1: <UHCI root HUB Intel> at usbus1, cfg=3D0 md=3DHOST spd=3DFULL (12M=
bps) pwr=3DON
ugen2.1: <UHCI root HUB Intel> at usbus2, cfg=3D0 md=3DHOST spd=3DFULL (12M=
bps) pwr=3DON
ugen3.1: <UHCI root HUB Intel> at usbus3, cfg=3D0 md=3DHOST spd=3DFULL (12M=
bps) pwr=3DON
ugen4.1: <EHCI root HUB Intel> at usbus4, cfg=3D0 md=3DHOST spd=3DHIGH
(480Mbps) pwr=3DON
ugen1.2: <product 0x7000 vendor 0x0557> at usbus1, cfg=3D0 md=3DHOST
spd=3DFULL (12Mbps) pwr=3DSAVE
ugen1.3: <USB Multimedia Keyboard BTC> at usbus1, cfg=3D0 md=3DHOST
spd=3DLOW (1.5Mbps) pwr=3DON
ugen1.4: <USB-PS/2 Optical Mouse Logitech> at usbus1, cfg=3D0 md=3DHOST
spd=3DLOW (1.5Mbps) pwr=3DON

Regards,
Navdeep



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