Bug 1064409
| Summary: | multipathd segfaults | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Karandeep Chahal <karandeepchahal> | ||||
| Component: | device-mapper-multipath | Assignee: | Ben Marzinski <bmarzins> | ||||
| Status: | CLOSED WONTFIX | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 5.9 | CC: | agk, bmarzins, bmr, dwysocha, heinzm, karandeepchahal, msnitzer, prajnoha, prockai, zkabelac | ||||
| Target Milestone: | rc | Flags: | karandeepchahal:
needinfo-
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| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2014-06-02 13:19:07 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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This bug/component is not included in scope for RHEL-5.11.0 which is the last RHEL5 minor release. This Bugzilla will soon be CLOSED as WONTFIX (at the end of RHEL5.11 development phase (Apr 22, 2014)). Please contact your account manager or support representative in case you need to escalate this bug. Thank you for submitting this request for inclusion in Red Hat Enterprise Linux 5. We've carefully evaluated the request, but are unable to include it in RHEL5 stream. If the issue is critical for your business, please provide additional business justification through the appropriate support channels (https://access.redhat.com/site/support). |
Created attachment 862351 [details] Corefile Description of problem: Multipathd crashes when suddenly a FC switch is enabled and port count is greater than or equal to 32 Version-Release number of selected component (if applicable): device-mapper-multipath-0.4.7-54.el5_9.2 device-mapper-multipath-debuginfo-0.4.7-59.el5 device-mapper-1.02.67-2.el5 device-mapper-multipath-0.4.7-54.el5_9.2 device-mapper-1.02.67-2.el5 device-mapper-debuginfo-1.02.67-2.el5 device-mapper-event-1.02.67-2.el5 device-mapper-multipath-debuginfo-0.4.7-59.el5 How reproducible: So, in this configuration there are 16 Linux initiators, each with 8 FC ports connected to a switch. On the target side is a DDN storage. The problem happens when the 32 storage ports are suddenly enabled on the switch fabric. It is observed that multipathd dies with what appears to be memory corruption. Steps to Reproduce: 1. Connect at least 16 initiators with 8 FC ports each, to a FC switch 2. Zone all initiators to a storage with 32 ports (in this test we used DDN storage). 3. Suddenly enable 32 switch ports connected to the storagre. Actual results: multipathd segfaults Expected results: no segfaults Additional info: