Date: Sat, 02 Feb 2008 12:40:36 +1030 From: Wayne Sierke <ws@au.dyndns.ws> To: Jeremy Chadwick <koitsu@freebsd.org> Cc: stable@freebsd.org Subject: Re: Frequent USB mouse disconnections under load with RELENG_7 Message-ID: <1201918236.5350.47.camel@predator-ii.buffyverse> In-Reply-To: <20080201151750.GA62488@eos.sc1.parodius.com> References: <1201188590.2075.4.camel@predator-ii.buffyverse> <1201865411.5350.12.camel@predator-ii.buffyverse> <20080201151750.GA62488@eos.sc1.parodius.com>
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On Fri, 2008-02-01 at 07:17 -0800, Jeremy Chadwick wrote: > On Fri, Feb 01, 2008 at 10:00:11PM +1030, Wayne Sierke wrote: > > - I've also just noticed that I'm getting these messages on startup > > under 7.x: > > > > kernel: Starting devd. > > kernel: Starting ums0 moused: > > kernel: Starting default moused: > > moused: unable to open /dev/ums0: Device busy > > > > but I can't now recall whether I was seeing those under 6.x. Has devd > > changed with 7.x? I've got a feeling that I'd tried to get devd in 6.x > > to handle the USB mouse on startup, but that I'd found it necessary to > > configure moused explicitly (i.e. with moused_port) in rc.conf as listed > > below. However my memory of it now is hazy at best. In any case, > > disconnections aside, I've not noticed any change in mouse behaviour > > since moving to 7.x either in console or xorg. > > > > moused_enable="YES" > > moused_port="/dev/ums0" > > I think this is what's happening here: > > * kernel starts > * usb stack loads, finds a USB mouse, attaches it to ums0 > * attachment tells devd "hey, theres a /dev/ums0 device that > just attached" > * /etc/devd.conf automatically spawns moused, which attaches to > the /dev/ums0 device > * rc scripts begin > * moused_enable="yes" is detected, thus moused is run manually > against /dev/ums0 > * moused is already running from when devd spawned it, which is > why /dev/ums0 is "Device busy" > > I would recommend removing the moused_* stuff in your rc.conf and > let devd take care of it, or, consider editing /etc/devd.conf and > removing the /dev/umsX detection which runs moused. Yes, well that's what I figured, but over the years getting the USB mouse to work with X has required manual configuration and I don't recall ever having any kind of automatic devd-style detection work previously. The handbook only appears to deal with setting up a mouse via sysinstall and it isn't apparent to me from the text what configuration settings would be made when installing a USB mouse. However this current behaviour looks encouraging so I shall "give it a whirl" and we'll see whether removing the manual moused config from rc.conf eliminates these disconnections. Wayne
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