ACK: [PATCH 0/1][SRU][F][H][I][OEM-5.10][OEM-5.13] e1000e blocks the boot process when it tried to write checksum to its NVM

Tim Gardner tim.gardner at
Wed Jul 21 12:06:02 UTC 2021

Acked-by: Tim Gardner <tim.gardner at>

On 7/21/21 4:37 AM, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at>
> BugLink:
> [Impact]
> While probing e1000e, it checks its NVM checksum, and write correct
> checksum back if the checksum is not correct. But for recent GBE update
> for security, its NVM could be written once for MAC address during
> production, so write checksum during driver probing is not allowed and
> block the boot process.
> [Fix]
> Intel provides a fix for it.
> [Test]
> Verified on a Dell machine which has wrong NVM checksum.
> [Where problems could occur]
>  From what Intel told us, the checksum isn't correct is not a big deal,
> we could ignore it and it won't lead to any issues.
> Sasha Neftin (1):
>    UBUNTU: SAUCE: e1000e: Do not take care about recovery NVM checksum
>   drivers/net/ethernet/intel/e1000e/ich8lan.c | 18 +++++++++++-------
>   1 file changed, 11 insertions(+), 7 deletions(-)

Tim Gardner
Canonical, Inc

More information about the kernel-team mailing list