Bug 487213 - [Intel 5.4 bug] ixgbe driver double counts RX byte count
Summary: [Intel 5.4 bug] ixgbe driver double counts RX byte count
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.3
Hardware: All
OS: Linux
urgent
medium
Target Milestone: rc
: 5.4
Assignee: Andy Gospodarek
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On:
Blocks: 480792 489459
TreeView+ depends on / blocked
 
Reported: 2009-02-24 19:35 UTC by John Ronciak
Modified: 2014-06-29 23:01 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-09-02 08:02:08 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
ixgbe-count-frames-and-bytes-received-only-once.patch (875 bytes, patch)
2009-03-02 22:08 UTC, Andy Gospodarek
no flags Details | Diff


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:1243 0 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.4 kernel security and bug fix update 2009-09-01 08:53:34 UTC

Description John Ronciak 2009-02-24 19:35:26 UTC
Description of problem: With the latest 5.3/ZStream ixgbe driver the byte count shows up a 2x the real value.

How reproducible:
Always

Steps to Reproduce:
1. Just put traffic through the ixgbe driver and see the the byte count is 2x the actual value.

Andy asked me to open a new bug on this.  This should be fixed for the upcoming ZStream release.

Comment 1 Andy Gospodarek 2009-03-02 22:08:40 UTC
Created attachment 333792 [details]
ixgbe-count-frames-and-bytes-received-only-once.patch

Completely untested, but by inspection I'm guessing this is the problem.

Comment 2 John Ronciak 2009-03-03 23:23:34 UTC
The patch does indeed solve the problem from both visual inspection and by installing and running it.  The BZ can now be closed as fixed.  

Thanks Andy.

Comment 5 RHEL Program Management 2009-03-05 16:18:44 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 7 Don Zickus 2009-04-16 18:39:26 UTC
in kernel-2.6.18-139.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

Please do NOT transition this bugzilla state to VERIFIED until our QE team
has sent specific instructions indicating when to do so.  However feel free
to provide a comment indicating that this fix has been verified.

Comment 14 errata-xmlrpc 2009-09-02 08:02:08 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2009-1243.html


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