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DateMon, 2 Jul 2007 12:59:49 +0400
FromOleg Nesterov <>
SubjectRe: [PATCH] Re: [NETPOLL] netconsole: fix soft lockup when removing module
On 07/02, Jarek Poplawski wrote:
> > diff -Nurp 2.6.22-rc7-/net/core/netpoll.c 2.6.22-rc7/net/core/netpoll.c
> --- 2.6.22-rc7-/net/core/netpoll.c	2007-07-02 09:03:27.000000000 +0200
> +++ 2.6.22-rc7/net/core/netpoll.c	2007-07-02 09:32:34.000000000 +0200
> @@ -72,8 +72,7 @@ static void queue_process(struct work_st
>  			netif_tx_unlock(dev);
>  			local_irq_restore(flags);
> 
> -			if (atomic_read(&npinfo->refcnt))
> -				schedule_delayed_work(&npinfo->tx_work, HZ/10);
> +			schedule_delayed_work(&npinfo->tx_work, HZ/10);
>  			return;
>  		}
>  		netif_tx_unlock(dev);
> @@ -786,7 +785,7 @@ void netpoll_cleanup(struct netpoll *np)
>  			if (atomic_dec_and_test(&npinfo->refcnt)) {
>  				skb_queue_purge(&npinfo->arp_tx);
>  				skb_queue_purge(&npinfo->txq);
> -				cancel_delayed_work(&npinfo->tx_work);
> +				cancel_rearming_delayed_work(&npinfo->tx_work);
>  				flush_scheduled_work();

While you are here, could you also delete this flush_scheduled_work() ?
It is not needed any longer.

Oleg.

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