Bug 1507054 – RT + Omnipath panic [rhel-7.4.z]

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Bug 1507054 - RT + Omnipath panic [rhel-7.4.z]

Summary:	RT + Omnipath panic [rhel-7.4.z]

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	high Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Clark Williams
QA Contact:	Zhang Yi
Docs Contact:	Marie Dolezelova

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	1503749
Blocks:
	Show dependency tree / graph

Reported:	2017-10-27 10:19 EDT by Oneata Mircea Teodor
Modified:	2017-11-30 11:03 EST (History)
CC List:	11 users (show)

See Also:
Fixed In Version:	kernel-rt-3.10.0-693.11.1.rt56.629.el7
Doc Type:	Bug Fix
Doc Text:	Previously, the hfi1 driver called the preempt_disable() function to prevent migration on standard Red Hat Enterprise Linux and on Red Hat Enterprise Linux for Real Time. On Red Hat Enterprise Linux for Real Time with the realtime kernel (kernel-rt), calling preempt_disable() triggered a kernel panic. With this update, the kernel-rt code has been modified to use a realtime-specific function call to the preempt_disable_nort() function, which expands to the correct calls based on the kernel that is running. As a result, the hfi1 driver now works correctly on both Red Hat Enterprise Linux kernel and Red Hat Enterprise Linux for Real Time kernel-rt.
Story Points:	---
Clone Of:	1503749
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)
Add an attachment (proposed patch, testcase, etc.)

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 2017-10-27 10:19:04 EDT

This bug has been copied from bug #1503749 and has been proposed to be backported to 7.4 z-stream (EUS).

Comment 8 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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