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Date: Wed, 06 Jul 2011 15:28:04 +0100 From: Ben Hutchings <bhutchings@...arflare.com> To: Arkadiusz Miskiewicz <a.miskiewicz@...il.com> Cc: netdev@...r.kernel.org Subject: Re: 3.0.0rc6: ethtool not working without a cable On Wed, 2011-07-06 at 13:38 +0200, Arkadiusz Miskiewicz wrote: > 3.0.0rc6, thinkpad t400 notebook. > > If there is no cable then ethtool reports no device. It wasn't that before > AFAIK. > > ethtool version 2.6.36 > > > cable disconnected: > > [root@...0 ~]# ethtool eth0 > Settings for eth0: > Cannot get device settings: No such device > Cannot get wake-on-lan settings: No such device > Cannot get message level: No such device > Cannot get link status: No such device > No data available > zsh: exit 75 ethtool eth0 > [root@...0 ~]# ethtool -i eth0 > Cannot get driver information: No such device > zsh: exit 71 ethtool -i eth0 [...] Then there really isn't a device under that name. Maybe the driver is getting a bogus MAC address, so that the device is renamed by udev. Check which devices do exist, and the MAC addresses they have, using 'ip link'. Ben. -- Ben Hutchings, Senior Software Engineer, Solarflare Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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