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From: Matt Mackall <mpm@selenic.com>
To: Colin Leroy <colin@colino.net>
Cc: Andrew Morton <akpm@osdl.org>, netdev@oss.sgi.com
Subject: Re: [PATCH] Prevent netpoll hanging when link is down
Date: Wed, 6 Oct 2004 16:43:22 -0500	[thread overview]
Message-ID: <20041006214322.GG31237@waste.org> (raw)
In-Reply-To: <20041006232544.53615761@jack.colino.net>

On Wed, Oct 06, 2004 at 11:25:44PM +0200, Colin Leroy wrote:
> Hi,
> 
> this patch fixes a (quite big) problem with netpoll: when link is down,
> it hangs.
> 
> This patch fixes it. Tested with no carrier (no more hang) and with
> carrier (same behaviour as before).

[cc:ed to netdev]

Well this doesn't look unreasonable, but I haven't run into it with
the NICs I've tested. Nor have I seen this reported before. Which NICs
is this with?
 
> -	if(!np || !np->dev || !netif_running(np->dev)) {
> +	if(!np || !np->dev || !netif_running(np->dev) || 
> +	   !netif_carrier_ok(np->dev)) {

I wonder if netif_running is redundant if netif_carrier_ok.

-- 
Mathematics is the supreme nostalgia of our time.

       reply	other threads:[~2004-10-06 21:43 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20041006232544.53615761@jack.colino.net>
2004-10-06 21:43 ` Matt Mackall [this message]
2004-10-07  5:53   ` [PATCH] Prevent netpoll hanging when link is down Colin Leroy
2004-10-07  6:49     ` David S. Miller
2004-10-07  8:33       ` Colin Leroy
2004-10-07  8:45         ` Colin Leroy
2004-10-07 14:05       ` Colin Leroy
2004-10-07 18:28         ` David S. Miller
2004-10-07 18:41           ` Matt Mackall
2004-10-07 20:00             ` Colin Leroy
2004-10-07 18:43           ` Andi Kleen
2004-10-07 20:44           ` Colin Leroy
2004-10-07 21:45             ` Andi Kleen
2004-10-07 21:50               ` Matt Mackall
2004-10-07 22:07                 ` David S. Miller
2004-10-07 23:43                   ` Matt Mackall
2004-10-07 23:50                     ` Andi Kleen
2004-10-08  6:46                       ` Colin Leroy
2004-10-08 21:53                         ` Matt Mackall
2004-10-08  7:06               ` Colin Leroy
2004-10-08 22:00                 ` Matt Mackall
2004-10-08 22:18                   ` Andrew Morton
2004-10-11  3:59                     ` David S. Miller
2004-10-11 15:40                       ` Andi Kleen
2004-10-11 16:22                         ` Matt Mackall
2004-10-11 16:32                           ` Andi Kleen
2004-10-11 16:36                             ` Matt Mackall
2004-10-11 16:43                               ` Andi Kleen
2004-10-11 16:58                                 ` Matt Mackall
2004-10-11 17:41                                   ` Andi Kleen
2004-10-11 20:45                                   ` Colin Leroy
     [not found]                                     ` <5cac192f0410181443303379e2@mail.gmail.com>
     [not found]                                       ` <5cac192f041018145824acce5a@mail.gmail.com>
     [not found]                                         ` <20041020161119.6e30efe5@pirandello>
     [not found]                                           ` <5cac192f0410200848179ccc81@mail.gmail.com>
2004-10-21 16:36                                             ` Colin Leroy
2004-10-24 15:22                                               ` Eric Lemoine
2004-10-07 22:08             ` David S. Miller
2004-10-08  6:54               ` Colin Leroy

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