From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kay Sievers Date: Fri, 19 Aug 2005 11:41:15 +0000 Subject: Re: udev too slow? Message-Id: <20050819114115.GA19386@vrfy.org> List-Id: References: <8F1EED683FFEDD43B4FE4A0425847F2EAEE581@EXE.ceda.polimi.it> In-Reply-To: <8F1EED683FFEDD43B4FE4A0425847F2EAEE581@EXE.ceda.polimi.it> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org 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 ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel