linux-kernel - Re: [Bug #11382] e1000e: 2.6.27-rc1 corrupts EEPROM/NVM

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Date:	Sun, 21 Sep 2008 16:51:59 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rjw@...k.pl
Cc:	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org,
	chrisl@...are.com, david.vrabel@....com
Subject: Re: [Bug #11382] e1000e: 2.6.27-rc1 corrupts EEPROM/NVM

From: "Rafael J. Wysocki" <rjw@...k.pl>
Date: Sun, 21 Sep 2008 20:54:13 +0200 (CEST)

> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11382
> Subject		: e1000e: 2.6.27-rc1 corrupts EEPROM/NVM
> Submitter	: David Vrabel <david.vrabel@....com>
> Date		: 2008-08-08 10:47 (45 days old)
> References	: http://marc.info/?l=linux-kernel&m=121819267211679&w=4
> Handled-By	: Christopher Li <chrisl@...are.com>

Fixed by:

commit 78566fecbb12a7616ae9a88b2ffbc8062c4a89e3
Author: Christopher Li <chrisl@...are.com>
Date:   Fri Sep 5 14:04:05 2008 -0700

    e1000: prevent corruption of EEPROM/NVM
    
    Andrey reports e1000 corruption, and that a patch in vmware's ESX fixed
    it.
    
    The EEPROM corruption is triggered by concurrent access of the EEPROM
    read/write. Putting a lock around it solve the problem.
    
    [akpm@...ux-foundation.org: use DEFINE_SPINLOCK to avoid confusing lockdep]
    Signed-off-by: Christopher Li <chrisl@...are.com>
    Reported-by: Andrey Borzenkov <arvidjaar@...l.ru>
    Cc: Zach Amsden <zach@...are.com>
    Cc: Pratap Subrahmanyam <pratap@...are.com>
    Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
    Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>
    Cc: Bruce Allan <bruce.w.allan@...el.com>
    Cc: PJ Waskiewicz <peter.p.waskiewicz.jr@...el.com>
    Cc: John Ronciak <john.ronciak@...el.com>
    Cc: Jeff Garzik <jeff@...zik.org>
    Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
    Signed-off-by: Jeff Garzik <jgarzik@...hat.com>
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