Bug 1511382
| Summary: | [RHEL-RT] Possible regression with NOHZ_FULL & rt_mutexes in IRQ (BZ1250649) [rhel-7.4.z] | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Oneata Mircea Teodor <toneata> |
| Component: | kernel-rt | Assignee: | Clark Williams <williams> |
| kernel-rt sub component: | Other | QA Contact: | Jiri Kastner <jkastner> |
| Status: | CLOSED ERRATA | Docs Contact: | Marie Hornickova <mdolezel> |
| Severity: | urgent | ||
| Priority: | urgent | CC: | bhu, daolivei, dhoward, kernel-eus-qe, lgoncalv, stalexan, williams |
| Version: | 7.5 | Keywords: | ZStream |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-rt-3.10.0-693.11.1.rt56.631.el7 | Doc Type: | Bug Fix |
| Doc Text: |
In the realtime kernel, if the rt_mutex locking mechanism was taken in the interrupt context, the normal priority inheritance protocol incorrectly identified a deadlock, and a kernel panic occurred. This update reverts the patch that added rt_mutex in the interrupt context, and the kernel no longer panics due to this behavior.
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Story Points: | --- |
| Clone Of: | 1509264 | Environment: | |
| Last Closed: | 2017-11-30 16:03:50 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: | 1509264 | ||
| Bug Blocks: | |||
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Description
Oneata Mircea Teodor
2017-11-09 09:32:36 UTC
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://access.redhat.com/errata/RHSA-2017:3322 |