netdev - RE: [Bugme-new] [Bug 16383] New: Regression with e1000e from 2.6.34.1 to 2.6.35-rc5

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Date:	Wed, 21 Jul 2010 15:43:58 -0600
From:	"Tantilov, Emil S" <emil.s.tantilov@...el.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	"Allan, Bruce W" <bruce.w.allan@...el.com>,
	"Duyck, Alexander H" <alexander.h.duyck@...el.com>,
	"Waskiewicz Jr, Peter P" <peter.p.waskiewicz.jr@...el.com>
CC:	"bugzilla-daemon@...zilla.kernel.org" 
	<bugzilla-daemon@...zilla.kernel.org>,
	"bugme-daemon@...zilla.kernel.org" <bugme-daemon@...zilla.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"craig@...uarter.de" <craig@...uarter.de>
Subject: RE: [Bugme-new] [Bug 16383] New: Regression with e1000e from
 2.6.34.1 to 2.6.35-rc5

>-----Original Message-----
>From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org] On
>Behalf Of Andrew Morton
>Sent: Wednesday, July 21, 2010 1:49 PM
>To: Kirsher, Jeffrey T; Brandeburg, Jesse; Allan, Bruce W; Duyck, Alexander
>H; Waskiewicz Jr, Peter P
>Cc: bugzilla-daemon@...zilla.kernel.org; bugme-daemon@...zilla.kernel.org;
>netdev@...r.kernel.org; craig@...uarter.de
>Subject: Re: [Bugme-new] [Bug 16383] New: Regression with e1000e from
>2.6.34.1 to 2.6.35-rc5
>
>
>(switched to email.  Please respond via emailed reply-to-all, not via the
>bugzilla web interface).
>
>On Wed, 14 Jul 2010 00:44:51 GMT
>bugzilla-daemon@...zilla.kernel.org wrote:
>
>> https://bugzilla.kernel.org/show_bug.cgi?id=16383
>>
>>            Summary: Regression with e1000e from 2.6.34.1 to 2.6.35-rc5
>>            Product: Drivers
>>            Version: 2.5
>>     Kernel Version: 2.6.35
>>           Platform: All
>>         OS/Version: Linux
>>               Tree: Mainline
>>             Status: NEW
>>           Severity: high
>>           Priority: P1
>>          Component: Network
>>         AssignedTo: drivers_network@...nel-bugs.osdl.org
>>         ReportedBy: craig@...uarter.de
>>         Regression: Yes
>>
>>
>> Created an attachment (id=27094)
>>  --> (https://bugzilla.kernel.org/attachment.cgi?id=27094)
>> .config
>>
>> Networking stops working with 2.6.35 (tested rc-3 and rc5).
>
>This is a post-2.6.34 regression, guys.  There's some more info in
>bugzilla.
>
>> # egrep "(e1000|eth)" dmesg-2.6.34.1
>> e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k2
>> e1000e: Copyright (c) 1999 - 2009 Intel Corporation.
>> e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
>> e1000e 0000:00:19.0: setting latency timer to 64
>> 0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1) 5c:ff:35:02:2d:a9
>> 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
>> 0000:00:19.0: eth0: MAC: 9, PHY: 10, PBA No: a002ff-0ff
>> e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
>>
>> # egrep "(e1000|eth)" dmesg-2.6.35-rc5
>> e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k4
>> e1000e: Copyright (c) 1999 - 2009 Intel Corporation.
>> e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
>> e1000e 0000:00:19.0: setting latency timer to 64
>> e1000e 0000:00:19.0: (unregistered net_device): Failed to initialize MSI
>> interrupts.  Falling back to legacy interrupts.
>> e1000e 0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1)
>5c:ff:35:02:2d:a9
>> e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
>> e1000e 0000:00:19.0: eth0: MAC: 9, PHY: 10, PBA No: a002ff-0ff
>> e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
>>
>> I hadn't set CONFIG_PCI_MSI but enabling it on 2.6.35-rc5 made no
>difference.

On what HW is this issue seen? Please provide the output of:
lspci -vvv
ethtool -e 
ethtool -S

kernel config.

Thanks,
Emil

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