121 lines
4.2 KiB
Text
121 lines
4.2 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA512
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=============================================================================
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FreeBSD-EN-15:14.ixgbe Errata Notice
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The FreeBSD Project
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Topic: Disable ixgbe(4) flow-director support
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Category: core
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Module: ixgbe
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Announced: 2015-08-25
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Credits: Marc De La Gueronniere (Verisign, Inc.)
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Affects: FreeBSD 10.1
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Corrected: 2014-10-11 22:10:39 UTC (stable/10, 10.1-STABLE)
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2015-08-25 20:48:58 UTC (releng/10.1, 10.1-RELEASE-p19)
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For general information regarding FreeBSD Errata Notices and Security
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Advisories, including descriptions of the fields above, security
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branches, and the following sections, please visit
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<URL:https://security.freebsd.org/>.
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I. Background
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Flow director is an Intel technology to steer incoming packets in application
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aware fashion.
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II. Problem Description
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Flow director support is not completely/correctly implemented in FreeBSD at
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this time.
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III. Impact
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Enabling flow director support may cause traffic to land on a wrong RX queue
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of the NIC, resulting in bad or sub-optimal performance on the receive side.
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IV. Workaround
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No workaround is available, but systems that do not have Intel(R) 82559
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series 10Gb Ethernet Controllers are not affected.
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V. Solution
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Perform one of the following:
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1) Upgrade your system to a supported FreeBSD stable or release / security
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branch (releng) dated after the correction date.
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2) To update your present system via a binary patch:
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Systems running a RELEASE version of FreeBSD on the i386 or amd64
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platforms can be updated via the freebsd-update(8) utility:
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# freebsd-update fetch
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# freebsd-update install
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3) To update your present system via a source code patch:
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The following patches have been verified to apply to the applicable
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FreeBSD release branches.
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a) Download the relevant patch from the location below, and verify the
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detached PGP signature using your PGP utility.
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# fetch https://security.FreeBSD.org/patches/EN-15:14/ixgbe.patch
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# fetch https://security.FreeBSD.org/patches/EN-15:14/ixgbe.patch.asc
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# gpg --verify ixgbe.patch.asc
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b) Apply the patch. Execute the following commands as root:
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# cd /usr/src
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# patch < /path/to/patch
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c) Recompile your kernel as described in
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<URL:https://www.FreeBSD.org/handbook/kernelconfig.html> and reboot the
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system.
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VI. Correction details
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The following list contains the correction revision numbers for each
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affected branch.
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Branch/path Revision
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- -------------------------------------------------------------------------
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stable/10/ r272967
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releng/10.1/ r287146
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- -------------------------------------------------------------------------
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To see which files were modified by a particular revision, run the
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following command, replacing NNNNNN with the revision number, on a
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machine with Subversion installed:
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# svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base
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Or visit the following URL, replacing NNNNNN with the revision number:
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<URL:https://svnweb.freebsd.org/base?view=revision&revision=NNNNNN>
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VII. References
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The latest revision of this Errata Notice is available at
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https://security.FreeBSD.org/advisories/FreeBSD-EN-15:14.ixgbe.asc
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