Bug 1554956

Summary:	[ppc64] Migration will fail after HPT resizing [rhel-7.5.z]
Product:	Red Hat Enterprise Linux 7	Reporter:	Oneata Mircea Teodor <toneata>
Component:	qemu-kvm-rhev	Assignee:	David Gibson <dgibson>
Status:	CLOSED ERRATA	QA Contact:	Min Deng <mdeng>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.5	CC:	bugproxy, dgibson, dzheng, hannsj_uhl, jen, jherrman, juzhang, knoel, lmiksik, lvivier, micai, michen, mrezanin, mtessun, qzhang, rhodain, salmy, toneata, virt-maint, xianwang
Target Milestone:	rc	Keywords:	Patch, ZStream
Target Release:	---
Hardware:	ppc64le
OS:	Linux
Whiteboard:
Fixed In Version:	qemu-kvm-rhev-2.10.0-21.el7_5.1	Doc Type:	Bug Fix
Doc Text:	Due to an error in the code for resizing the hashed page table (HPT), migrated guests on an IBM POWER host terminated unexpectedly. This update ensures that the size of the HPT is recorded correctly during migration, which prevents the described crashes from occurring.	Story Points:	---
Clone Of:	1545016	Environment:
Last Closed:	2018-04-11 01:02:04 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:	1545016
Bug Blocks:	1555362

Description Oneata Mircea Teodor 2018-03-13 16:08:52 UTC

This bug has been copied from bug #1545016 and has been proposed to be backported to 7.5 z-stream (EUS).

Comment 2 David Gibson 2018-03-14 00:17:47 UTC

Mirek,

Fix was already posted for what's now the 7.6 bug.  Can we move this straight to POST state?

Comment 3 Miroslav Rezanina 2018-03-14 09:31:52 UTC

Fix included in qemu-kvm-rhev-2.10.0-21.el7_5.1

Comment 5 Min Deng 2018-03-15 06:00:18 UTC

Reproduced the issue on 
kernel-3.10.0-842.el7.ppc64le
qemu-kvm-rhev-2.10.0-20.el7.ppc64le.

Verified this bug on the following builds
kernel-3.10.0-861.el7.ppc64le
qemu-kvm-rhev-2.10.0-21.el7_5.1.ppc64le

The issue has been fixed,thanks

Comment 8 errata-xmlrpc 2018-04-11 01:02:04 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/RHBA-2018:1105