From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: sysfs class/net/ problem Date: Wed, 2 Jun 2010 08:46:08 -0700 Message-ID: <20100602154608.GB12361@kroah.com> References: <1275484611.3915.11.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev , "Eric W. Biederman" To: Johannes Berg Return-path: Received: from kroah.org ([198.145.64.141]:45341 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757890Ab0FBPqQ (ORCPT ); Wed, 2 Jun 2010 11:46:16 -0400 Content-Disposition: inline In-Reply-To: <1275484611.3915.11.camel@jlt3.sipsolutions.net> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, Jun 02, 2010 at 03:16:51PM +0200, Johannes Berg wrote: > Hi, > > I didn't find anything related in the archives, if I missed it I'd > appreciate a pointer. I'm currently experiencing the following: > > # ip link > 1: lo: mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > 2: eth0: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 > link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff > # ls -l /sys/class/net/ > total 0 > lrwxrwxrwx 1 root root 0 Jun 2 13:12 eth0 -> ../../devices/pci0000:00/0000:00:03.0/net/eth0 > lrwxrwxrwx 1 root root 0 Jun 2 13:12 lo -> ../../devices/virtual/net/lo > # insmod cfg80211.ko ; insmod mac80211.ko ; insmod mac80211_hwsim.ko radios=3 > # ip link > 1: lo: mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > 2: eth0: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 > link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff > 5: wlan0: mtu 1500 qdisc noop state DOWN qlen 1000 > link/ether 02:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff > 6: wlan1: mtu 1500 qdisc noop state DOWN qlen 1000 > link/ether 02:00:00:00:01:00 brd ff:ff:ff:ff:ff:ff > 7: wlan2: mtu 1500 qdisc noop state DOWN qlen 1000 > link/ether 02:00:00:00:02:00 brd ff:ff:ff:ff:ff:ff > 8: hwsim0: mtu 1500 qdisc noop state DOWN > link/ieee802.11/radiotap 12:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff > # ls -l /sys/class/net/ > total 0 > lrwxrwxrwx 1 root root 0 Jun 2 13:12 eth0 -> ../../devices/pci0000:00/0000:00:03.0/net/eth0 > lrwxrwxrwx 1 root root 0 Jun 2 13:14 hwsim0 -> ../../devices/virtual/net/hwsim0 > lrwxrwxrwx 1 root root 0 Jun 2 13:12 lo -> ../../devices/virtual/net/lo > lrwxrwxrwx 1 root root 0 Jun 2 13:14 wlan0 -> ../../devices/virtual/mac80211_hwsim/hwsim0/wlan0 > lrwxrwxrwx 1 root root 0 Jun 2 13:14 wlan1 -> ../../devices/virtual/mac80211_hwsim/hwsim1/wlan1 > lrwxrwxrwx 1 root root 0 Jun 2 13:14 wlan2 -> ../../devices/virtual/mac80211_hwsim/hwsim2/wlan2 > # rmmod mac80211_hwsim mac80211 cfg80211 > # ip link > 1: lo: mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > 2: eth0: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 > link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff > # ls -l /sys/class/net/ > total 0 > lrwxrwxrwx 1 root root 0 Jun 2 13:12 eth0 -> ../../devices/pci0000:00/0000:00:03.0/net/eth0 > lrwxrwxrwx 1 root root 0 Jun 2 13:12 lo -> ../../devices/virtual/net/lo > lrwxrwxrwx 1 root root 0 Jun 2 13:14 wlan0 -> ../../devices/virtual/mac80211_hwsim/hwsim0/wlan0 > lrwxrwxrwx 1 root root 0 Jun 2 13:14 wlan1 -> ../../devices/virtual/mac80211_hwsim/hwsim1/wlan1 > lrwxrwxrwx 1 root root 0 Jun 2 13:14 wlan2 -> ../../devices/virtual/mac80211_hwsim/hwsim2/wlan2 Ah, so the network devices aren't getting removed? Do you have network namespaces enabled in your kernel or disabled? And this is 2.6.35-rc1, right? Eric, any ideas? thanks, greg k-h