Bug#290964: kernel-image-2.6.10-1-686: ifdown freezes: unregister_netdevice: waiting for ... to become free

[Jukka Suomela <debian-reportbug@sammal.pp.fi>]

Package: kernel-image-2.6.10-1-686
Version: 2.6.10-3
Severity: normal

With the 2.6.10-1-686 kernel, "ifdown -a" freezes. After a while
kernel starts logging messages such as:

    unregister_netdevice: waiting for tunnel0 to become free.
    Usage count = 1

(Above "tunnel0" is an IPv6-in-IPv4 tunneling device.)

The same setup works fine with the current 2.6.8-2-686 kernel package,
and it has worked with earlier kernels, too.

-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.8-2-686
Locale: LANG=fi_FI, LC_CTYPE=fi_FI (charmap=ISO-8859-1)

Versions of packages kernel-image-2.6.10-1-686 depends on:
ii  coreutils [fileutils]         5.2.1-2    The GNU core utilities
ii  fileutils                     5.2.1-2    The GNU file management utilities 
ii  initrd-tools                  0.1.76     tools to create initrd image for p
ii  module-init-tools             3.1-rel-2  tools for managing Linux kernel mo