From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: cannot set IP for ethernet Date: Wed, 13 Jun 2007 13:14:02 +0200 Message-ID: <466FD17A.8040900@trash.net> References: <200706121441.13561.oliver@neukum.org> <466EA861.2070509@trash.net> <200706131039.32011.oliver@neukum.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, Linux Netdev List , Herbert Xu To: Oliver Neukum Return-path: Received: from stinky.trash.net ([213.144.137.162]:60930 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758054AbXFMLRQ (ORCPT ); Wed, 13 Jun 2007 07:17:16 -0400 In-Reply-To: <200706131039.32011.oliver@neukum.org> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Oliver Neukum wrote: > Am Dienstag, 12. Juni 2007 schrieb Patrick McHardy: > >>Oliver Neukum wrote: >> >>>with 2.6.22-rc4-git2 I am getting errors when setting IP for ethernet >>>interfaces: >>> >>>ioctl(4, SIOCSIFADDR, 0x7fff94931600) = -1 ENOBUFS (No buffer space available) >>> >>>The error is independant of the interface. It happens to all interfaces. >>>There's nothing in the syslog. >>> >>>valisk:/home/oliver # uname -a >>>Linux valisk 2.6.22-rc4-git2-default #3 SMP Tue Jun 12 13:27:54 CEST 2007 x86_64 x86_64 x86_64 GNU/Linux >> >> >>This can happen if the initial inetdev allocation when the netdevice is >>registered fails. I think it would make sense to try to allocate again >>when adding addresses in that case, otherwise there is no way of >>recovery other than unregistering and registering the device again. > > > With your patch the problem has gone away. Is there a way to especially > stress the system in that regard? Its a failed allocation at NETDEV_REGISTER time. I guess you could keep unloading + reloading the driver module to try to reproduce it.