Bug 1511382 – [RHEL-RT] Possible regression with NOHZ_FULL & rt_mutexes in IRQ (BZ1250649) [rhel-7.4.z]

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Bug 1511382 - [RHEL-RT] Possible regression with NOHZ_FULL & rt_mutexes in IRQ (BZ1250649) [rhel-7.4.z]

Summary:	[RHEL-RT] Possible regression with NOHZ_FULL & rt_mutexes in IRQ (BZ1250649) ...

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	kernel-rt (Show other bugs)
Sub Component:
Version:	7.5
Hardware:	x86_64 Linux

Priority	urgent Severity urgent
Target Milestone:	rc
Target Release:	---
Assigned To:	Clark Williams
QA Contact:	Jiri Kastner
Docs Contact:	Marie Dolezelova

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	1509264
Blocks:
	Show dependency tree / graph

Reported:	2017-11-09 04:32 EST by Oneata Mircea Teodor
Modified:	2017-11-30 11:03 EST (History)
CC List:	7 users (show)

See Also:
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.
Story Points:	---
Clone Of:	1509264
Environment:
Last Closed:	2017-11-30 11:03:50 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:3322	normal	SHIPPED_LIVE	Moderate: kernel-rt security, bug fix, and enhancement update	2017-11-30 15:18:55 EST

Groups: None (edit)

Description Oneata Mircea Teodor 2017-11-09 04:32:36 EST

This bug has been copied from bug #1509264 and has been proposed to be backported to 7.4 z-stream (EUS).

Comment 10 errata-xmlrpc 2017-11-30 11:03:50 EST

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

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