Bug 514147
| Summary: | TCP traffic for VLAN interfaces fails over mlx4_en parent interface. | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Yevgeny Petrilin <yevgenyp> | ||||
| Component: | kernel | Assignee: | Doug Ledford <dledford> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | urgent | Docs Contact: | |||||
| Priority: | urgent | ||||||
| Version: | 5.4 | CC: | bzeranski, cward, dhoward, dzickus, hjia, jpirko, mgahagan, peterm, sandy.garza, yevgenyp | ||||
| Target Milestone: | rc | Keywords: | ZStream | ||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2010-03-30 06:52:03 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: | 520908 | ||||||
| Attachments: |
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Tziporet, could we get your confirmation that you will be able to provide us with additional testing feedback once this request has been approved and a test build including the proposed patch set is available? in kernel-2.6.18-165.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. @Yevgeny Petrilin (yevgenyp.il) Please grab the -165 kernel build from comment #5 and test to verify the resolution of this issue. Report results back to this bugzilla as soon as possible. The sooner we hear back from you, the sooner we'll be able to push the officially support bits out to RHN for general consumption. The issue is resolved in -165 kernel, Thanks 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-2010-0178.html |
Created attachment 355364 [details] Fix endianess bag when looking for VLAN tag Description of problem: TCP traffic for VLAN interfaces fails when the parent mlx4_en interface is configured to work with LRO. This is an endianess bug in mlx4_en LRO flow that prevents the driver to see that the packet has a VLAN tag. The packet is not passed to the VLAN interface and dropped by the IP layer. The bug occures when the IP address for the parent interface is not configured. I attached the patch that fixes the issue. Steps to Reproduce: 1. Load the mlx4_en driver without changing defaults. 2. Bring the mlx4_en interface up without configuring IP address (ifconfig eth<x> up 3. Create a VLAN interface over eth<x> 4. Try to run TCP traffic over the VLAN interface (scp, ssh) Actual results: The traffic fails Expected results: It should work correctlly