Messages in this thread |  | | From | Jesse Brandeburg <> | Subject | [PATCH 2.6.27-rc8 0/1] e1000e nvm fix | Date | Wed, 01 Oct 2008 17:18:30 -0700 |
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Please apply to 2.6.27
This is related to regression bugzilla: http://bugzilla.kernel.org/show_bug.cgi?id=11382
This patch is meant to prevent all future corruptions of the e1000e NVM (non volatile memory) after the driver is loaded. The registers stay locked until the machine is power cycled.
This should allow us to move forward with debugging without allowing any other bad element or the e1000e driver, to write to the NVM area unexpectedly.
Currently we (Intel Ethernet) are reproducing the issue on multiple machines in house, we are working on the issue with the other core Linux teams here at Intel and within the community. No resolution yet but we are much closer now.
Later we will post patches to help users who have had this problem restore their eeprom from either a saved image from ethtool -e or from another identical system.
There is a set of patches to help clean up the driver's use of the hardware/software semaphore, but those are un-necessary to be immediately applied once we're locking the NVM. We will push those for inclusion within the merge window for 2.6.28.
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Bruce Allan (1): e1000e: write protect ICHx NVM to prevent malicious write/erase
drivers/net/e1000e/e1000.h | 2 + drivers/net/e1000e/ethtool.c | 3 ++ drivers/net/e1000e/ich8lan.c | 58 ++++++++++++++++++++++++++++++++++++++++++ drivers/net/e1000e/netdev.c | 10 +++++-- drivers/net/e1000e/param.c | 30 ++++++++++++++++++++++ 5 files changed, 100 insertions(+), 3 deletions(-)
-- Jesse Brandeburg
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