Re: netif_poll_disable() hangs

[Andrew Morton <akpm@xxxxxxxx>]

Jeff Garzik <jgarzik@xxxxxxxxx> wrote:
>
> Andrew Morton wrote:
> > Very simple:
> > 
> >     ifup eth0
> >     ifdown eth0
> >     ifup eth0
> >     ifdown eth0     <- hangs in dev_close -> netif_poll_disable()
> > 
> > 
> > Because the first close sets __LINK_STATE_RX_SCHED and nothing ever clears
> > it.  
> 
> 
> Weird.  Looking at older 2.4 and 2.6, the bit has always been set that way.

2.4 does test_bit, 2.6 does test_and_set_bit.