Bug 1400930
| Summary: | RT kernel panics with dm-multipath enabled | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Marcel Kolaja <mkolaja> |
| Component: | kernel-rt | Assignee: | Clark Williams <williams> |
| kernel-rt sub component: | Multipath | QA Contact: | Lin Li <lilin> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | unspecified | ||
| Priority: | high | CC: | agk, bhu, bmarzins, jkastner, lgoncalv, lilin, mpoledni, msnitzer, nsoffer, vdronov, williams, xni, yizhan |
| Version: | 7.4 | Keywords: | ZStream |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
Previously, the device mapper (DM) subsystem was not notified that the real-time kernel changes the way preemption works with spinlocks. This caused a kernel panic when the dm-multipath kernel module was loaded because the interrupt request (IRQ) check was invalid on the real-time kernel. This check has been corrected enabling the system to boot correctly with the dm-multipath module enabled.
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Story Points: | --- |
| Clone Of: | 1389215 | Environment: | |
| Last Closed: | 2017-01-17 18:25:55 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: | 1389215 | ||
| Bug Blocks: | |||
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Description
Marcel Kolaja
2016-12-02 10:44:31 UTC
commit b984063401e0eddbc2c6fc0daf6a5257f7e4cba4 added to RT 7.3.z tree (cherry-picked from upstream commit: fef016306919048a4db85c43aad09593efb3af4b) and is in kernel-rt-3.10.0-514.5.1.rt56.el7 and higher. 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. https://rhn.redhat.com/errata/RHSA-2017-0091.html |