On Tue, 2012-02-28 at 15:32 -0800, Matt Carlson wrote:

On Mon, Feb 27, 2012 at 05:44:34PM -0600, James Bottomley wrote:

quoted

On Thu, 2012-02-23 at 23:55 +0100, Rafael J. Wysocki wrote:

quoted

This message has been generated automatically as a part of a summary report
of recent regressions.

The following bug entry is on the current list of known regressions
from 3.2.  Please verify if it still should be listed and let the tracking team
know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=42707
Subject		: Hang deconfiguring network interface (in shutdown) on 3.3-rc1
Submitter	: James Bottomley [off-list ref]
Date		: 2012-01-28 19:56 (27 days old)
Message-ID	: [off-list ref]
References	: http://marc.info/?l=linux-kernel&m=132778076214873&w=2

Still present in 3.3-rc4; I've bisected it back to this commit:

commit 92feeabf3f673767c6ee4cfc7fc224098446c1c1
Author: Matt Carlson [off-list ref]
Date:   Thu Dec 8 14:40:14 2011 +0000

    tg3: Save stats across chip resets

and sure enough, just reverting this single commit on 3.3-rc4 fixes the
problem.

James

Are you dealing with a bcm5700 or bcm5701 device?

Yes, this is it:

20:02.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5701 Gigabit Ethernet (rev 15)
	Subsystem: Hewlett-Packard Company Core Lan 1000Base-T
	Flags: bus master, 66MHz, medium devsel, latency 128, IRQ 72
	Memory at ffffffff90000000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: [40] PCI-X non-bridge device
	Capabilities: [48] Power Management version 2
	Capabilities: [50] Vital Product Data
	Capabilities: [58] MSI: Enable- Count=1/8 Maskable- 64bit+
	Kernel driver in use: tg3

  If so, can you try
the following patch?

Subject: [PATCH 1/1] tg3: Fix tg3_get_stats64 for 5700 / 5701 devs

Well, the patch needs some attention:

  CC [M]  drivers/net/ethernet/broadcom/tg3.o
drivers/net/ethernet/broadcom/tg3.c: In function 'tg3_get_estats':
drivers/net/ethernet/broadcom/tg3.c:9882: warning: 'return' with a value, in function returning void

It also didn't apply incredibly well (the fuzz factors and line offsets
are a lot higher than they should be):

patching file drivers/net/ethernet/broadcom/tg3.c
Hunk #1 succeeded at 7886 (offset -115 lines).
Hunk #2 succeeded at 7908 (offset -115 lines).
Hunk #3 succeeded at 9845 (offset -278 lines).
Hunk #4 succeeded at 9854 (offset -278 lines).
Hunk #5 succeeded at 9873 (offset -278 lines).
Hunk #6 succeeded at 9958 (offset -275 lines).
Hunk #7 succeeded at 10007 with fuzz 1 (offset -275 lines).
Hunk #8 succeeded at 10103 with fuzz 2 (offset -2096 lines).

but it seems to work.

Thanks,

James