Date: Sat, 1 Aug 2009 06:15:01 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: Alfred Perlstein <alfred@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Navdeep Parhar <nparhar@gmail.com> Subject: Re: svn commit: r195960 - in head/sys/dev/usb: . controller input Message-ID: <200908010615.02972.hselasky@c2i.net> In-Reply-To: <20090731212140.GK47463@elvis.mu.org> References: <200907300014.n6U0EZ77086341@svn.freebsd.org> <d04e16b70907310045y635245efob33b10464c22524f@mail.gmail.com> <20090731212140.GK47463@elvis.mu.org>
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On Friday 31 July 2009 23:21:40 Alfred Perlstein wrote: > Hans, can you please look into this issue? > > * Navdeep Parhar <nparhar@gmail.com> [090731 00:45] wrote: > > 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: > > > ?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 It's because there is a DELAY(1000) in the UKBD's polling routine so that key- repeating will work, no magic. --HPS
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