Bug 578259
Summary: | Network throughput drops seriously on DomU to DomU node traffic on RHEL5.3 Xen when NIC performs RSC. | ||
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Product: | Red Hat Enterprise Linux 5 | Reporter: | Nandini Chandra <nachandr> |
Component: | kernel-xen | Assignee: | Paolo Bonzini <pbonzini> |
Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
Severity: | high | Docs Contact: | |
Priority: | high | ||
Version: | 5.3 | CC: | drjones, jlv, kzhang, mjenner, mrezanin, pbonzini, qwan, xen-maint |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2011-01-13 21:22:25 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 514489 |
Description
Nandini Chandra
2010-03-30 18:00:01 UTC
This is c/s 14893 in upstream Xen. 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. in kernel-2.6.18-206.el5 You can download this test kernel from http://people.redhat.com/jwilson/el5 Detailed testing feedback is always welcomed. I can't reproduce this bug against 2.6.18-194 kernel, confirmed with Paolo, it's safe to include this patch in the build, and it's ok to verify it with sanity check. linux-2.6-virt-xen-netback-copy-skbuffs-if-head-crosses-pages.patch is applied correctly in this build, and also do the test against 2.6.18-238 build with the steps mentioned by customer, no issue found. Change this bug to VERIFIED. 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-2011-0017.html |