Bug 497

Summary:	OpenSSL RSA key generation hangs on x86_64
Product:	buildroot	Reporter:	Floris Bos <info>
Component:	Other	Assignee:	unassigned
Status:	RESOLVED FIXED
Severity:	normal	CC:	buildroot
Priority:	P5
Version:	unspecified
Target Milestone:	---
Hardware:	PC
OS:	Linux
Host:		Target:	x86_64
Build:

Description Floris Bos 2009-07-29 14:23:51 UTC

OpenSSL ends up in an endless 100% CPU loop when generating keys on x86_64.

E.g. when running "openssh" for the first time, or executing "openssl genrsa"


It seems that the openssl library buildroot produces includes code for 32-bit systems, and does not work properly on x86_64.

In openssl.mk It tests for BR2_ARCH:

==
OPENSSL_TARGET_ARCH=generic32

[...]

ifeq ($(BR2_ARCH),x86_64)
OPENSSL_TARGET_ARCH=x86_64
endif
==

Not sure why, but this does not seem to work, and OpenSSL always builds as "generic32"

If I use $(ARCH) instead, it does work properly and solves the key generation problem:

==
ifeq ($(ARCH),x86_64)
OPENSSL_TARGET_ARCH=x86_64
endif
==

Comment 1 Thomas Petazzoni 2009-07-29 15:07:30 UTC

You're right.

There are two solutions to fix the issue. The first solution is to use $(ARCH), as you suggested. ARCH is defined by project/Makefile.in. The second solution if to change the test to be

ifeq ($(BR2_ARCH),"x86_64")

note the double quotes around x86_64.

Not sure which one is best, though.

Comment 2 Peter Korsgaard 2009-07-29 19:15:36 UTC

It's because BR2_ARCH is a string value, so it contains " chars as well, E.G. the tests have to be written as:

ifeq ($(BR2_ARCH),"x86_64")
OPENSSL_TARGET_ARCH=x86_64
endif

I'll fix it in git - Thanks.

Comment 3 Peter Korsgaard 2009-07-29 19:51:37 UTC

Fixed in git (2a966bc) using ARCH