Bug 103501 – reproducable segmentation faults when using gentoo-sources on a machine with more than 4 GB of ram and high-memory support at 64 GB enabled in kernel

• Product: Gentoo Linux
• Status: RESOLVED DUPLICATE

[Description Matthias Gerstner 2005-08-23 12:43:57 UTC]

When you have a machine with for example 8 GB of RAM (probably this is the case
for all machines with above 4 GB RAM) and enable apropriate high-memory support
of up to 64 GB in the gentoo-sources kernel many of the bigger ebuild such as
gcc or glibc fail with always reproducable segmentation faults. This is not the
case when choosing a high-memory support of only 4 GB of RAM and thus loosing
some GB of RAM. Also the problem does not occur when using vanilla-sources with
the correct high-memory support setting.

Reproducible: Always
Steps to Reproduce:
1.Get a machine with more than 4 GB of physical RAM installed
2.Use gentoo-sources with high-memory support of up to 64 GB RAM enabled
3.Compile something like gcc or glibc

Actual Results:  
internal compiler error: SEGMENTATION FAULT

Expected Results:  
A clean emerge / compiling without segmentation faults

Have a look at this forum thread for confirmation of the problem by other users:

http://forums.gentoo.org/viewtopic-t-319460.html?sid=e816bd46181dd56b25baf6f20cf55373

--

I could not paste the emerge info used with the gentoo-sources and high-memory
support @ 64 GB enabled because the affected machine needs to be stable ... but
the rest of the info is exactly the same.

Portage 2.0.51.22-r2 (default-linux/x86/2005.1, gcc-3.3.5-20050130,
glibc-2.3.5-r1, 2.6.12.5 i686)
=================================================================
System uname: 2.6.12.5 i686 Intel(R) XEON(TM) MP CPU 2.00GHz
Gentoo Base System version 1.6.13
ccache version 2.3 [enabled]
dev-lang/python:     2.3.5
sys-apps/sandbox:    1.2.12
sys-devel/autoconf:  2.13, 2.59-r6
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.5
sys-devel/binutils:  2.15.92.0.2-r10
sys-devel/libtool:   1.5.18-r1
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=pentium4 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config
/usr/share/config /var/qmail/co
ntrol"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -march=pentium4 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig ccache distlocks sandbox sfperms strict"
GENTOO_MIRRORS="http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/
http://ftp.uni-erlangen.d
e/pub/mirrors/gentoo http://mirrors.sec.informatik.tu-darmstadt.de/gentoo/
http://ftp-stud.fht-essli
ngen.de/pub/Mirrors/gentoo/ http://pandemonium.tiscali.de/pub/gentoo/"
MAKEOPTS="-j10"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 acl afs berkdb bzip2 chroot crypt gdbm glibc-omitfp hardened ipv6
kerberos krb4 krb5 ldap m
mx mysql ncurses nls nptl nptlonly pam perl python readline rtc samba sasl skey
sockets socks5 spell
 sse ssl tcpd truetype unicode userlocales xml2 zlib userland_GNU kernel_linux
elibc_glibc"
Unset:  ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS

[Comment 1 Daniel Drake (RETIRED) 2005-08-23 15:23:52 UTC]

Waiting for 2.6.13 to debug this further (the 2.6.12 patchset is big)

*** This bug has been marked as a duplicate of 101359 ***