em device hangs on ifconfig alias ...

[Pyun YongHyeon]

On Mon, Jul 10, 2006 at 01:47:23PM -0700, Atanas wrote:
 > Pyun YongHyeon said the following on 7/7/06 8:32 PM:
 > >On Fri, Jul 07, 2006 at 10:38:01PM +0100, Robert Watson wrote:
 > > > 
 > > > Yes -- basically, there are two problems:
 > > > 
 > > > (1) A little problem, in which an arp announcement is sent before the 
 > > link > has
 > > >     settled after reset.
 > > > 
 > > > (2) A big problem, in which the interface is gratuitously recent 
 > > requiring
 > > >     long settling times.
 > > > 
 > > > I'd really like to see a fix to the second of these problems (not 
 > > resetting > when an IP is added or removed, resulting in link 
 > > renegotiation); the first > one I'm less concerned about, although it 
 > > would make some amount of sense > to do an arp announcement when the link 
 > > goes up.
 > > > 
 > >
 > >Ah, I see. Thanks for the insight.
 > >How about the attached patch?
 > >
 > This patch seems to fix both of the issues, or at least this is what I 
 > see now:
 > - the card no longer gets reset when adding an alias;
 > - the arp packet gets delivered;
 > - adding 250 aliases takes less than a second;
 > 
 > I haven't fully tested whether all 250 IP aliases were accessible (I 
 > used non-routable IP addresses), but I suppose so. Also I couldn't 
 > stress the patched driver enough to see whether it performs as expected.
 > 
 > But in overall it looks good. I guess some more testing might be needed 
 > in order to merge the patch into the source tree.
 > 

I haven't received any reports execept this one.
If there is no objection I'll commit these changes within two days.

-- 
Regards,
Pyun YongHyeon