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+++ This bug was initially created as a clone of Bug #707984 +++ Description of problem: When I setup a GRED Queue in grio mode, the VQs prio parameter should be configurable. But somehow it is always set to the default value, no matter what value I try to set it to. Version-Release number of selected component: Package: iproute-2.6.33-8.fc13(i686) -> tc utility, iproute2-ss100224 Package: kernel-2.6.34.8-68.fc13(i686) How reproducible: ALWAYS Steps to Reproduce: tc qdisc add dev eth0 root gred setup DPs 3 default 0 grio tc qdisc change dev eth0 root gred limit 60KB min 15KB max 30KB burst 30 avpkt 576 probability 0.01 DP 0 prio 1 tc qdisc change dev eth0 root gred limit 60KB min 15KB max 30KB burst 30 avpkt 576 probability 0.02 DP 1 prio 2 tc qdisc change dev eth0 root gred limit 60KB min 15KB max 30KB burst 30 avpkt 576 probability 0.03 DP 2 prio 3 tc qdisc show dev eth0 Actual results: qdisc gred 800d: root refcnt 2 DP:0 (prio 8) Average Queue 0b Measured Queue 0b Packet drops: 0 (forced 0 early 0) Packet totals: 0 (bytes 0) ewma 3 Plog 21 Scell_log 12 DP:1 (prio 8) Average Queue 0b Measured Queue 0b Packet drops: 0 (forced 0 early 0) Packet totals: 0 (bytes 0) ewma 3 Plog 20 Scell_log 12 DP:2 (prio 8) Average Queue 0b Measured Queue 0b Packet drops: 0 (forced 0 early 0) Packet totals: 0 (bytes 0) ewma 3 Plog 19 Scell_log 12 Expected results: qdisc gred 800d: root refcnt 2 DP:0 (prio 1) Average Queue 0b Measured Queue 0b Packet drops: 0 (forced 0 early 0) Packet totals: 0 (bytes 0) ewma 3 Plog 21 Scell_log 12 DP:1 (prio 2) Average Queue 0b Measured Queue 0b Packet drops: 0 (forced 0 early 0) Packet totals: 0 (bytes 0) ewma 3 Plog 20 Scell_log 12 DP:2 (prio 3) Average Queue 0b Measured Queue 0b Packet drops: 0 (forced 0 early 0) Packet totals: 0 (bytes 0) ewma 3 Plog 19 Scell_log 12 Additional info:
This applies to RHEL6 too. Patch is upstream, cb4bd0ec.
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. If you would like it considered as an exception in the current release, please ask your support representative.
Fixed in CVS as tag iproute-2_6_32-17_el6. The build will be ready once bug 711344 is resolved.
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: Cause The 'tc' utility ignored GRED options. Consequence 'tc' users couldn't configure certain GRED queue related parameters. Fix The 'tc' utility no longer accidentally .overwrites the user specified options. Result 'tc' users can now reliably define all GRED parameters.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1690.html