> > Here is a patch which may not solve the underlying
>
> This does not. refcnt cannot be <1 at this point.
The refcnt shouldn't be less than 1, but it is in fact
less than 1. (As I'm sure you understand.)
> > assuming that the latter messages aren't serious?
>
> They are fatal. Machine must be rebooted after them.
True. I found that with testing---lots of ifups and ifdowns,
etc.---the kernel becomes unstable.
> > I hope the networking gurus can find the real bugs here.
>
> Well, someone forgets to grab refcnt or makes redundant dev_put.
> Try to catch this, f.e. adding BUG() to the places where fatal
> messages are generated to get backtraces.
> Alexey
I think that the ipx driver makes an inappropriate dev_put
in its notifier callback. However that is for people better
acquainted with the come than I to judge. Removing the ipx
driver does work around the problem though.
Thomas
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