linux-kernel - RE: e1000e crashes with 2.6.34.x and ThinkPad T60

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Message-ID: <8DD2590731AB5D4C9DBF71A877482A900164E174ED@orsmsx509.amr.corp.intel.com>
Date:	Thu, 12 Aug 2010 09:12:13 -0700
From:	"Allan, Bruce W" <bruce.w.allan@...el.com>
To:	Marc Haber <mh+linux-kernel@...schlus.de>
CC:	"Tantilov, Emil S" <emil.s.tantilov@...el.com>,
	Linux Kernel Developers <linux-kernel@...r.kernel.org>,
	Linux Kernel Network Developers <netdev@...r.kernel.org>,
	"e1000-devel@...ts.sf.net" <e1000-devel@...ts.sf.net>
Subject: RE: e1000e crashes with 2.6.34.x and ThinkPad T60

On Thursday, August 12, 2010 3:50 AM, Marc Haber wrote:
> Hi,
> 
> On Tue, Aug 10, 2010 at 09:34:52AM -0700, Allan, Bruce W wrote:
>> [adding e1000-devel, the Intel wired ethernet developers mailing
>> list] 
> 
> Thanks.
> 
>> We have had other recent reports of issues with this part that are
>> due to ASPM L1 being enabled.  Would you please try disabling L1
>> after the driver is loaded as follows (assuming your adapter is
>> still PCI bus/device/number 02:00.0 as indicated in the lspci output
>> you provided earlier): 1) First check the hexadecimal value of the
>> LnkCtl register - # setpci -s 2:0.0 0xf0
> 
> $ sudo setpci --version
> setpci version 3.1.7
> $ sudo setpci -s 2:0.0 0xf0
> setpci: Missing width.
> Try `setpci --help' for more information.
> $
> 
> Looking at --help doesn't help me, sorry.
> 
> Greetings
> Marc

Hmm, that's a newer version than I am familiar with.  Apparently in
more recent versions, the tool is requiring a width be specified for
unnamed registers and/or registers for which the width is unknown.
That being the case, append the width specifier .B (one byte) to the
register address.  For example:

# setpci -s 2:0.0 0xf0.B

HTH,
Bruce.
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