netdev - 2.6.34-rc1 regression: rmmod hangs on modules which interfaces have ipv6 address

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Message-ID: <EA929A9653AAE14F841771FB1DE5A1365FE4A7FB39@rrsmsx501.amr.corp.intel.com>
Date:	Mon, 22 Mar 2010 18:02:52 -0600
From:	"Tantilov, Emil S" <emil.s.tantilov@...el.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:	David Miller <davem@...emloft.net>
Subject: 2.6.34-rc1 regression: rmmod hangs on modules which interfaces have
 ipv6 address

Steps to reproduce:
1. Load driver
2. Bring interfaces up with IPv6 address 
3. rmmod the driver

rmmod fails with "waiting for device to become free. Usage count=1"

Bisecting turned up this patch:
http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=3e81c6da39a265e11ef48f52bd15bf7ca0068c75

Although I can't confirm this since without it I am not able to assign IPv6 addresses. So it could be caused by whatever this commit is trying to fix.

Thanks,
Emil--
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