From: Kay Sievers <kay.sievers@vrfy.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: udev too slow?
Date: Fri, 19 Aug 2005 11:41:15 +0000 [thread overview]
Message-ID: <20050819114115.GA19386@vrfy.org> (raw)
In-Reply-To: <8F1EED683FFEDD43B4FE4A0425847F2EAEE581@EXE.ceda.polimi.it>
On Fri, Aug 19, 2005 at 12:10:56PM +0200, Barbini Uberto wrote:
> I've just passed to udev from devfs (Gentoo daily sync with 2.6.12).
>
> I've a problem with dvb drivers: after the modprobe it occurs about 10
> seconds before udev creates the devices (/dev/adapter0/xxx), which it's
> pretty unacceptable in a dining room settopbox.
Update to udev 068, if not already. Start "udevmonitor" before
loading the modules and post the output it prints. It will show the
sequence of the kernel->udev events. I have a USB DVB device which
takes less than a second to initialize:
UEVENT[1124451227] add@/devices/pci0000:00/0000:00:1d.7/usb4/4-3
UEVENT[1124451227] add@/devices/pci0000:00/0000:00:1d.7/usb4/4-3/4-3:1.0
UEVENT[1124451227] add@/class/usb_device/usbdev4.4
UDEV [1124451227] add@/devices/pci0000:00/0000:00:1d.7/usb4/4-3
UEVENT[1124451227] add@/module/dvb_core
UDEV [1124451227] add@/module/dvb_core
UEVENT[1124451227] add@/module/cinergyT2
UEVENT[1124451227] add@/bus/usb/drivers/cinergyT2
UEVENT[1124451227] add@/class/dvb/dvb0.demux0
UEVENT[1124451227] add@/class/dvb/dvb0.dvr0
UEVENT[1124451227] add@/class/dvb/dvb0.net0
UEVENT[1124451227] add@/class/dvb/dvb0.frontend0
UEVENT[1124451227] add@/class/input/event5
UDEV [1124451227] add@/module/cinergyT2
UDEV [1124451227] add@/bus/usb/drivers/cinergyT2
UDEV [1124451227] add@/class/input/event5
UDEV [1124451227] add@/devices/pci0000:00/0000:00:1d.7/usb4/4-3/4-3:1.0
UDEV [1124451227] add@/class/usb_device/usbdev4.4
UDEV [1124451227] add@/class/dvb/dvb0.demux0
UDEV [1124451227] add@/class/dvb/dvb0.net0
UDEV [1124451227] add@/class/dvb/dvb0.dvr0
UDEV [1124451227] add@/class/dvb/dvb0.frontend0
Kay
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next prev parent reply other threads:[~2005-08-19 11:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-19 10:10 udev too slow? Barbini Uberto
2005-08-19 11:41 ` Kay Sievers [this message]
2005-08-19 19:54 ` Uberto Barbini
2005-08-19 20:36 ` Kay Sievers
2005-08-19 22:56 ` Greg KH
2005-08-20 18:16 ` Uberto Barbini
2005-08-20 19:11 ` Kay Sievers
2005-08-28 23:28 ` Kay Sievers
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