Subject: Re: [PATCH] Re: [NETPOLL] netconsole: fix soft lockup when removing module

From: Jarek Poplawski <[email-masked]>
Date: Wed, 4 Jul 2007 08:41:59 +0200

On Mon, Jul 02, 2007 at 09:52:26AM +0200, Jarek Poplawski wrote:
> 
> From my recent patch:
> 
> > >    #1
> > >    Until kernel ver. 2.6.21 (including) cancel_rearming_delayed_work()
> > >    required a work function should always (unconditionally) rearm with
> > >    delay > 0 - otherwise it would endlessly loop. This patch replaces
> > >    this function with cancel_delayed_work(). Later kernel versions don't
> > >    require this, so here it's only for uniformity.
> 
> But Oleg Nesterov <[email-masked]> found:
> 
> > But 2.6.22 doesn't need this change, why it was merged?
> > 
> > In fact, I suspect this change adds a race,
> ...
> 
> His description was right (thanks), so this patch reverts #1.
> 
> Signed-off-by: Jarek Poplawski <[email-masked]>

Oleg,

I think maybe you could ack these 2 netconsole patches...
They were done on your request but it looks like Andrew
is waiting on something...

Thanks,
Jarek P.