Bug 1509021
| Summary: | [MRG-RT] Possible regression with NOHZ_FULL & rt_mutexes in IRQ (BZ1250649) | ||||||
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| Product: | Red Hat Enterprise MRG | Reporter: | Daniel Bristot de Oliveira <daolivei> | ||||
| Component: | realtime-kernel | Assignee: | Clark Williams <williams> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Jiri Kastner <jkastner> | ||||
| Severity: | urgent | Docs Contact: | Marie Hornickova <mdolezel> | ||||
| Priority: | unspecified | ||||||
| Version: | 2.5 | CC: | bhu, lgoncalv, vbendel | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | kernel-rt-3.10.0-693.11.1.rt56.596.el6rt | 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: | Environment: | ||||||
| Last Closed: | 2017-11-30 13:15:53 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: | |||||
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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-2017:3295 |
Created attachment 1347234 [details] [PATCH] re-apply Revert "timers: do not raise softirq Patch