Bug 451713 - e1000e kernel panic with 82566DM-2 and jumbo frames
e1000e kernel panic with 82566DM-2 and jumbo frames
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
x86_64 Linux
low Severity high
: rc
: ---
Assigned To: Red Hat Kernel Manager
Martin Jenner
Depends On:
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Reported: 2008-06-16 16:27 EDT by Sterling Windmill
Modified: 2008-09-19 07:33 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2008-09-19 07:33:02 EDT
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Regression: ---
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RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Sterling Windmill 2008-06-16 16:27:10 EDT
Description of problem:

On a system with integrated Intel 82566DM-2 gigabit ethernet, enabling jumbo
frames (tested with an MTU of 9000) results in a kernel panic with the included
version 0.2.0 e1000e driver. 

Installing version of the e1000e driver available at sourceforge
remedies this issue and allows for an MTU of 9000 to be set without issue.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Run a kernel with the 0.2.0 e1000e driver
2. Set an MTU of 9000 on an Intel 82566DM-2 NIC
Actual results:

Kernel panic

Expected results:

Increased MTU

Additional info:
Comment 1 Prarit Bhargava 2008-06-18 08:18:47 EDT
Hi Sterling,

Can you attach the panic output?


Comment 2 Sterling Windmill 2008-06-18 10:34:03 EDT
It will take me a few days to setup netconsole and find time to force this
machine to crash. I will report back as soon as possible with my results.
Comment 3 Prarit Bhargava 2008-09-19 07:33:02 EDT


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