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Bug 1335629

Summary:	aarch64: MINSIGSTKSZ is (much) too small (nptl/tst-signal6 test failure)
Product:	Red Hat Enterprise Linux 7	Reporter:	Michael Petlan <mpetlan>
Component:	glibc	Assignee:	Florian Weimer <fweimer>
Status:	CLOSED ERRATA	QA Contact:	Michael Petlan <mpetlan>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.2	CC:	ashankar, codonell, fweimer, mcermak, mnewsome, pfrankli
Target Milestone:	rc	Keywords:	Patch
Target Release:	---
Hardware:	aarch64
OS:	Linux
Whiteboard:
Fixed In Version:	glibc-2.17-134.el7	Doc Type:	No Doc Update
Doc Text:	undefined	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-03 08:31:59 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:
Bug Blocks:	1335925

Description Michael Petlan 2016-05-12 17:32:32 UTC

Description of problem:


Version-Release number of selected component (if applicable):


How reproducible:


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Additional info:

Comment 1 Michael Petlan 2016-05-12 17:36:16 UTC

Reproducible with: glibc-2.17-133.el7.aarch64
also with: glibc-2.17-108.el7.aarch64

# cd nptl
# ./tst-signal6
tf: sigaltstack failed
tf: sigaltstack failed

Comment 4 Carlos O'Donell 2016-05-12 20:43:32 UTC

The upstream commit we need is:

commit b763f6ae859ecea70a5dacb8ad45c71d5f667e2e
Author: Andreas Schwab <schwab>
Date:   Tue Sep 30 12:41:11 2014 +0200

    aarch64: Increase MINSIGSTKSZ and SIGSTKSZ (bug 16850)

Comment 5 Carlos O'Donell 2016-05-12 20:44:51 UTC

This shows up as a failure in tst-signal6 on AArch64 systems with new-enough kernels.

Comment 9 Michael Petlan 2016-08-11 19:40:36 UTC

Tested glibc-2.17-133.el7 against glibc-2.17-157.el7:

# ./157/BUILD/glibc-2.17-c758a686/build-aarch64-redhat-linux/nptl/tst-signal6
thread 0 used alt stack for signal 36
thread 0 used alt stack for signal 36
thread 0 used alt stack for signal 34
thread 1 used alt stack for signal 35
# ./133/BUILD/glibc-2.17-c758a686/build-aarch64-redhat-linux/nptl/tst-signal6
tf: sigaltstack failed
tf: sigaltstack failed

VERIFIED

Comment 11 errata-xmlrpc 2016-11-03 08:31:59 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://rhn.redhat.com/errata/RHSA-2016-2573.html