Re: e1000e NVM corruption issue status

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To: Brandeburg, Jesse <jesse.brandeburg@...>
Cc: LKML <linux-kernel@...>, Jiri Kosina <jkosina@...>, <agospoda@...>, Ronciak, John <john.ronciak@...>, Allan, Bruce W <bruce.w.allan@...>, Graham, David <david.graham@...>, <kkiel@...>, <tglx@...>, <chris.jones@...>, <arjan@...>, H. Peter Anvin <hpa@...>
Date: Friday, September 26, 2008 - 3:12 am

* Brandeburg, Jesse wrote:

> From: Bruce Allan

that's fine, as long as you make it kernel-internal EXPORT_SYMBOL_GPL():

Acked-by: Ingo Molnar

feel free to push that bit via the networking tree(s) whenever you think
you'd like to push it. We can queue it up in the x86 tree too - it's a
useful debug facility for critical resources.

one other possible angle beyond these current theories of user-space PCI
BAR corruption (perhaps) and racy in-kernel corruption (less likely) is
PAT and conflicting caching attributes.

But that too is in the race category IMO (while this corruption seems to
trigger straight away on the affected boxes) and the CPUs that saw these
corruptions should triple fault if the OS creates conflicting cache
attributes.

Ingo
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Messages in current thread:
e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 9:50 pm)
Re: e1000e NVM corruption issue status, James Courtier-Dutton, (Sat Oct 18, 3:13 pm)
Re: e1000e NVM corruption issue status, Jiri Kosina, (Sat Oct 18, 6:49 pm)
Re: e1000e NVM corruption issue status, Karsten Keil, (Fri Sep 26, 3:19 am)
Re: e1000e NVM corruption issue status, Jesse Brandeburg, (Fri Sep 26, 1:44 am)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:01 pm)
Re: e1000e NVM corruption issue status, Karsten Keil, (Fri Sep 26, 10:23 am)
Re: e1000e NVM corruption issue status, Jiri Kosina, (Fri Sep 26, 2:13 am)
Re: e1000e NVM corruption issue status, Arjan van de Ven, (Fri Sep 26, 7:49 am)
Re: e1000e NVM corruption issue status, Jesse Barnes, (Fri Sep 26, 1:52 pm)
Re: e1000e NVM corruption issue status, Jesse Barnes, (Fri Sep 26, 2:23 pm)
Re: e1000e NVM corruption issue status, Tim Gardner, (Fri Sep 26, 2:53 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Fri Sep 26, 8:05 pm)
Re: e1000e NVM corruption issue status, Tim Gardner, (Sat Sep 27, 12:20 am)
Re: e1000e NVM corruption issue status, Krzysztof Halasa, (Fri Sep 26, 6:04 pm)
RE: e1000e NVM corruption issue status, Brandeburg, Jesse, (Fri Sep 26, 6:23 pm)
Re: e1000e NVM corruption issue status, Krzysztof Halasa, (Sat Sep 27, 2:45 pm)
Re: e1000e NVM corruption issue status, Jesse Barnes, (Fri Sep 26, 2:39 pm)
Re: e1000e NVM corruption issue status, Jesse Barnes, (Fri Sep 26, 2:43 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:13 pm)
Re: e1000e NVM corruption issue status, Jiri Kosina, (Mon Sep 29, 11:52 am)
Re: e1000e NVM corruption issue status, Jiri Kosina, (Mon Sep 29, 12:20 pm)
RE: e1000e NVM corruption issue status, Brandeburg, Jesse, (Mon Sep 29, 12:24 pm)
RE: e1000e NVM corruption issue status, Jiri Kosina, (Mon Sep 29, 1:18 pm)
RE: e1000e NVM corruption issue status, Jiri Kosina, (Mon Sep 29, 1:36 pm)
RE: e1000e NVM corruption issue status, Jiri Kosina, (Mon Sep 29, 6:43 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:13 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:12 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:12 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:11 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:11 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:10 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:10 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:10 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:09 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:09 pm)
Re: e1000e NVM corruption issue status, Ingo Molnar, (Fri Sep 26, 3:12 am)
Re: e1000e NVM corruption issue status, Chris Snook, (Thu Sep 25, 9:58 pm)
Re: e1000e NVM corruption issue status, Brandeburg, Jesse, (Thu Sep 25, 10:04 pm)