• David S. Miller's avatar
    ipv6: On interface down/unregister, purge icmp routes too. · 1e493d19
    David S. Miller authored
    Johannes Berg reported that occaisionally, bringing an interface
    down or unregistering it would hang for up to 30 seconds.  Using
    debugging output he provided it became clear that ICMP6 routes
    were the culprit.
    
    The problem is that ICMP6 routes live in their own world totally
    separate from normal ipv6 routes.  So there are all kinds of special
    cases throughout the ipv6 code to handle this.
    
    While we should really try to unify all of this stuff somehow,
    for the time being let's fix this by purging the ICMP6 routes
    that match the device in question during rt6_ifdown().
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    1e493d19
route.c 66.2 KB