linux-kernel - Re: 3.9.0 dmesg reports that my NIC is hanging

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Date:	Mon, 6 May 2013 10:29:45 -0700
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	John <da_audiophile@...oo.com>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>
Subject: Re: 3.9.0 dmesg reports that my NIC is hanging

[+cc Jeff, e1000-devel (from MAINTAINERS)]

On Sat, May 4, 2013 at 1:56 PM, John <da_audiophile@...oo.com> wrote:
> After upgrading to the official Arch Linux 3.9-2 kernel package, dmesg reports that my NIC is hanging:
>
> [    5.955720] e1000e 0000:00:19.0 eno1: changing MTU from 1500 to 4000
> [    8.464507] e1000e 0000:00:19.0 eno1: Detected Hardware Unit Hang:
>   TDH                  <0>
>   TDT                  <2>
>   next_to_use          <2>
>   next_to_clean        <0>
> buffer_info[next_to_clean]:
>   time_stamp           <fffea787>
>   next_to_watch        <0>
>   jiffies              <fffeaa30>
>   next_to_watch.status <0>
> MAC Status             <40080080>
> PHY Status             <7949>
> PHY 1000BASE-T Status  <0>
> PHY Extended Status    <3000>
> PCI Status             <10>
>
> Not too sure what else to post.  I am not subscribed to lkml so please cc my email in your reply.
>
>
> Link to complete dmesg: http://pastebin.com/zRBajGrY
> Seems similar to: bugzilla.redhat.com/show_bug.cgi?id=785806

It sounds like this is a regression, so it might be useful to know
what the newest working kernel was, and maybe a dmesg log from it as
well, though I don't see any obvious clues in the 3.9.0-2-ARCH dmesg
you collected.

Bjorn
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