88286 2005-04-07 12:17 0000 When running vuescan I get "glibc detected *** double free or corruption (out): 0x5556f1a" 2005-04-07 22:25:51 0000 1 1 1 Unclassified Gentoo Linux Core system unspecified AMD64 Linux RESOLVED INVALID P2 normal --- 1 hvengel@astound.net bug-wranglers@gentoo.org radek@podgorny.cz hvengel@astound.net 2005-04-07 12:17:48 0000 After installing vuescan from 32 bit binaries when I run it I get the following: bash-2.05b$ ./vuescan *** glibc detected *** double free or corruption (out): 0x5556f1ac *** Aborted I contacted the author of the software and he thinks it is a glibc problem. Reproducible: Always Steps to Reproduce: 1. Download and unpack the vuescan tarball 2. Install 32 versions of libubs and libregmgr 3. try to run Vuescan with ./vuescan Actual Results: bash-2.05b$ ./vuescan *** glibc detected *** double free or corruption (out): 0x5556f1ac *** Aborted Expected Results: Vuescan should run. bash-2.05b# emerge info Portage 2.0.51.19 (default-linux/amd64/2005.0, gcc-3.4.3, glibc-2.3.4.20041102-r1, 2.6.9-gentoo-r14 x86_64) ================================================================= System uname: 2.6.9-gentoo-r14 x86_64 AMD Athlon(tm) 64 Processor 3500+ Gentoo Base System version 1.4.16 Python: dev-lang/python-2.3.4-r1 [2.3.4 (#1, Mar 28 2005, 23:05:42)] distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.3 [enabled] dev-lang/python: 2.3.4-r1 sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.4 sys-devel/binutils: 2.15.92.0.2-r7 sys-devel/libtool: 1.5.10-r4 virtual/os-headers: 2.6.8.1-r4 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CFLAGS="-march=k8 -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=k8 -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox" GENTOO_MIRRORS="http://gentoo.llarian.net/ http://gentoo.osuosl.org/ http://gentoo.ccccom.com http://gentoo.mirrors.tds.net/gentoo http://mirror.datapipe.net/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 X acpi alsa apache2 berkdb bitmap-fonts cdr crypt cups curl dvr esd fam flac font-server foomaticdb fortran gdbm gif gimpprint gpm gtk gtk2 imagemagick imlib ipv6 jack java jp2 jpeg junit kde lzw lzw-tiff mad matrox motif mp3 nas ncurses nls nptl oggvorbis opengl oss pam perl pic png ppds python qt readlinescanner sdl ssl tcltk tcpd threads tiff truetype truetype-fonts type1-fonts usbuserlocales wxwindows xinerama xml2 xpm xrandr xv xvid zlib" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS radek@podgorny.cz 2005-04-07 13:21:17 0000 This is not a glibc problem. It's a bug in vuescan, glibc just refused to continue when it detected it... You can compile glibc with this check disabled... mr_bones_@gentoo.org 2005-04-07 16:33:41 0000 Indeed. Not a glibc problem and not a problem with a supported package as far as I can tell. hvengel@astound.net 2005-04-07 22:25:51 0000 OK I found some more info on this error message. The behavior of glibc can be controlled with the emvironment variable MALLOC_CHECK_ When set to 0 it disables the checking. When I do that vuescan segfualts. When I set it to 1glibc give a beter error message and say there is an invalid pointer. So this is a problem with vuescan. Thanks for you help.