From: Stephen Hemminger <shemminger@linux-foundation.org>
To: linux-kernel@vger.kernel.org
Subject: Re: network driver usage count
Date: Wed, 21 Nov 2007 13:04:45 -0800 [thread overview]
Message-ID: <20071121130445.569d2176@freepuppy.rosehill> (raw)
In-Reply-To: <87hcjf9yd4.fsf@tac.ki.iif.hu>
On Wed, 21 Nov 2007 20:45:11 +0100
Ferenc Wagner <wferi@niif.hu> wrote:
> Hi!
>
> Under 2.6.23.1, my lsmod output shows this:
>
> $ lsmod | grep tg3
> tg3 100580 0
>
> The usage count is zero, even though it drives my two physical
> interfaces:
>
> $ ls -l /sys/class/net/eth-gb?/device/driver
> lrwxrwxrwx 1 root root 0 2007-11-21 19:58 /sys/class/net/eth-gb1/device/driver -> ../../../bus/pci/drivers/tg3
> lrwxrwxrwx 1 root root 0 2007-11-21 19:58 /sys/class/net/eth-gb2/device/driver -> ../../../bus/pci/drivers/tg3
>
> These interfaces are up and bonded together, but that doesn't seem to
> matter at all. I also checked other machines, the network driver
> (tg3, e1000) usage counts are always zero under various recent 2.6
> kernels, but nonzero under 2.4.21 for example.
>
> And really, the module could be removed, cutting my ssh session. :)
>
> Was this made possible intentionally? If yes, why?
Yes, so devices can be removed at anytime.
--
Stephen Hemminger <shemminger@linux-foundation.org>
next prev parent reply other threads:[~2007-11-21 21:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-21 19:45 Ferenc Wagner
2007-11-21 21:04 ` Stephen Hemminger [this message]
2007-11-21 22:16 ` Wagner Ferenc
2007-11-21 23:53 ` Francois Romieu
2007-11-23 1:04 ` David Miller
2007-11-23 10:09 ` Ferenc Wagner
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