Bug 645563
| Summary: | GFS2: glock with no holder | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Anton Mark <amark> | ||||
| Component: | kernel | Assignee: | Robert Peterson <rpeterso> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | Cluster QE <mspqa-list> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 5.5.z | CC: | bturner, rpeterso | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2010-11-10 15:45:42 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: | |||||||
| Attachments: |
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This may be a duplicate of bug #595397. *** This bug has been marked as a duplicate of bug 595397 *** |
Created attachment 454927 [details] gfs2_hangalyzer output showing lost locks Description of problem: Customer reported GFS2 IO freeze. Running gfs2_hangalyzer reports pid waiting for glock but no holder found. Version-Release number of selected component (if applicable): RHEL 5.5.z How reproducible: Customer generally ran in to this problem once a week. Steps to Reproduce: Details are not known yet exactly how to make it happen. It seems to have to do with active/active mail server workload. Actual results: All IO on a specific GFS2 file system would eventually stop (or at least appear to stop). Expected results: IO doesn't stop. Additional info: Will attach gfs2_hangalyzer output with missing locks. Gave customer 2.6.18-209.el5.x86_64.rpm test kernel and this appears to have fixed the lost locks part of this.