Bug 1652926

Summary:	ppc64le memcheck cannot handle gcc inlined strcmp
Product:	[Fedora] Fedora	Reporter:	Mark Wielaard <mjw>
Component:	valgrind	Assignee:	Mark Wielaard <mjw>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	29	CC:	dodji, jakub, mjw
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	valgrind-3.14.0-7.fc29 valgrind-3.14.0-7.fc28	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-12-21 19:39:39 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:
Embargoed:
Bug Depends On:	1652927, 1652928
Bug Blocks:

Description Mark Wielaard 2018-11-23 15:26:08 UTC

On ppc64le gcc8 generates inlined code for str[n]cmp that valgrind memcheck cannot proof correct. gcc9/trunk generates slightly different code for the inlined strncmp code that valgrind memcheck can proof correct with some patches.

To solve this bug fully some patches from valgrind https://bugs.kde.org/show_bug.cgi?id=386945#c35 need to be backported. The gcc patch https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01589.html needs to be backported. And at least glibc needs to be rebuild with the new gcc compiler.

Comment 1 Fedora Update System 2018-12-19 01:43:41 UTC

valgrind-3.14.0-7.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-725d146d26

Comment 2 Fedora Update System 2018-12-19 03:36:47 UTC

valgrind-3.14.0-7.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-ef423a0352

Comment 3 Fedora Update System 2018-12-21 19:39:39 UTC

valgrind-3.14.0-7.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2018-12-27 01:50:48 UTC

valgrind-3.14.0-7.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.