Re: [BUG 2.5.67 (and probably earlier)] /proc/dev/net doesnt show all net devices

From: "Randy.Dunlap" <rddunlap@osdl.org>
To: "Christian Bornträger" <linux@borntraeger.net>
Cc: acme@conectiva.com.br, linux-kernel@vger.kernel.org
Subject: Re: [BUG 2.5.67 (and probably earlier)] /proc/dev/net doesnt show all net devices
Date: Thu, 1 May 2003 14:12:43 -0700	[thread overview]
Message-ID: <20030501141243.30c9c54e.rddunlap@osdl.org> (raw)
In-Reply-To: <200304291434.18272.linux@borntraeger.net>

Hi-

On Tue, 29 Apr 2003 14:34:18 +0200 Christian Bornträger <linux@borntraeger.net> wrote:

| Summary: /proc/net/devices doesnt show all devices using cat. With dd all are 
| available.
| 
| I tested a kernels prior to 
| http://linus.bkbits.net:8080/linux-2.5/cset@1.797.156.3
| and it doesnt seem to have this problem.
| 
| If I do a 
| & cat /proc/net/dev
| Inter-|   Receive                                                |  Transmit
|  face |bytes    packets errs drop fifo frame compressed multicast|bytes    
| packets errs drop fifo colls carrier compressed
|     lo:     784      10    0    0    0     0          0         0      784      
| dummy0:       0       0    0    0    0     0          0         0        0       
|  tunl0:       0       0    0    0    0     0          0         0        0       
|   gre0:       0       0    0    0    0     0          0         0        0       
|   sit0:       0       0    0    0    0     0          0         0        0       
|   eth0: 1078024   19131    0    0    0     0          0         0  5696472   
|   eth1:536253967 10078459    0    0    0     0          0         0 3372254868 
| 
| I get net devices till eth1, but eth2 and hsi0 are available nevertheless.
| but if I do a 
| 
| & dd if=/proc/net/dev bs=4096
| Inter-|   Receive                                                |  Transmit
|  face |bytes    packets errs drop fifo frame compressed multicast|bytes    
| packets errs drop fifo colls carrier compressed
|     lo:    1036      13    0    0    0     0          0         0     1036      
| dummy0:       0       0    0    0    0     0          0         0        0       
|  tunl0:       0       0    0    0    0     0          0         0        0       
|   gre0:       0       0    0    0    0     0          0         0        0       
|   sit0:       0       0    0    0    0     0          0         0        0       
|   eth0: 1182386   18424    0    0    0     0          0         0 11838659   
|   eth1:30499791987 20594094    0    0    0     0          0         0 
|   eth2:184353121774 125264473    0    0    0     0          0         0 
|   hsi0:123569282529 3827611    0    0    0     0          0         0 
| 0+1 records in
| 0+1 records out
| 
| All net devices are shown.

Weird one to me.  Maybe someone else knows...

You were doing this test in an X terminal window, right?
and not on a text-only console?

The reason that I say that is that I can reproduce this problem on
2.5.68, but only in an xterm or similar window, but when I switch back
to a console, the entire device list is displayed.

???

--
~Randy