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

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Date:	Wed, 24 Sep 2008 21:00:36 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	airlied@...il.com
Cc:	jeff@...zik.org, jkosina@...e.cz, akpm@...ux-foundation.org,
	jeffrey.t.kirsher@...el.com, david.vrabel@....com, rjw@...k.pl,
	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org,
	chrisl@...are.com, mingo@...e.hu, jbarnes@...tuousgeek.org,
	jesse.brandeburg@...il.com
Subject: Re: [Bug #11382] e1000e: 2.6.27-rc1 corrupts EEPROM/NVM

From: "Dave Airlie" <airlied@...il.com>
Date: Thu, 25 Sep 2008 13:51:23 +1000

> I think e1000e may enable a BAR or something that causes the issue to
> break this hw., I haven't seen it broken on any
> machine where e1000e wasn't loaded yet. Again the r8169 might be the
> same issue, but it maybe because the bar was enabled.

All PCI device drivers in the kernel first do pci_enable_device()
which essentially enables all BARs.

The flash lives in BAR 1 of the E1000E, for example.
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