lkml.org 
[lkml]   [2007]   [Jun]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] Fix race condition about network device name allocation
    On Wed, Jun 13, 2007 at 09:36:31AM -0700, Stephen Hemminger wrote:
    > On Wed, 13 Jun 2007 12:45:21 +0300
    > Dan Aloni <da-x@monatomic.org> wrote:
    >
    > > On Mon, May 14, 2007 at 08:58:40AM -0700, Stephen Hemminger wrote:
    > > > Kenji Kaneshige found this race between device removal and
    > > > registration. On unregister it is possible for the old device to
    > > > exist, because sysfs file is still open. A new device with 'eth%d'
    > > > will select the same name, but sysfs kobject register will fial.
    > > >
    > > > The following changes the shutdown order slightly. It hold a removes the sysfs
    > > > entries earlier (on unregister_netdevice), but holds a kobject reference.
    > > > Then when todo runs the actual last put free happens.
    > > >
    > > > Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
    > >
    > > That patch breaks the bonding driver. After reverting it I avoid this crash:
    > >
    >[..]
    > >
    >
    > I assume this happens when bonded slave device is removed?

    Yes, it's just a simple removal via sysfs.

    > Which kernel version?

    2.6.21.5

    --
    Dan Aloni
    XIV LTD, http://www.xivstorage.com
    da-x (at) monatomic.org, dan (at) xiv.co.il
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-06-14 08:11    [W:0.022 / U:0.772 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site