Upon upgrading to glibc-2.3.5, mplex (from media-video/mjpegtools-1.6.2-r4) began choking on output of jpeg2yuv | mpeg2enc. Upon failure, mplex reports "glibc detected double free or corruption" However, mplex handles without difficulty other mpeg2 files, e.g. demuxed output from avidemux2. Upgrading to glibc-2.3.5-r1 doesn't solve the problem. Reproducible: Always Steps to Reproduce: Follow the instructions from mythtv documentation, section 22.21, "Creating a DVD with Menus". http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.21 1. jpeg2yuv -n 50 -I p -f 29.97 -j menu.jpg | mpeg2enc -n n -f 8 -o menu.m2v 2. dd if=/dev/zero bs=4 count=2000 | toolame -b 128 -s 48 /dev/stdin menu.mp2 3. mplex -f 8 -o menu.mpg menu.m2v menu.mp2 Actual Results: INFO: [mplex] mplex version 1.6.2 (2.2.3 $Date: 2004/01/13 20:45:26 $) *** glibc detected *** double free or corruption (!prev): 0x800081c8 ./foo.sh: line 5: 16369 Aborted mplex -f 8 -o menu.mpg menu. m2v menu.mp2 Expected Results: Create a conforming .m2v video, and then mux it into an .mpg
This bug report doesn't say what gcc-version (emerge info would have been handy). If it's <3.4.3, I'm thinking maybe http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17976 ?
'emerge info' Gentoo Base System version 1.6.13 Portage 2.0.51.22-r2 (hardened/x86/2.6, gcc-3.3.5-20050130, glibc-2.3.5-r1, 2.6. 11-hardened-r15 i686) ================================================================= System uname: 2.6.11-hardened-r15 i686 Pentium III (Coppermine) dev-lang/python: 2.3.5-r2 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="-march=pentium3 -O2 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /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=pentium3 -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://gentoo.osuosl.org http://www.ibiblio.org/pub/Linux/ distributions/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="X aac apache2 avi berkdb bitmap-fonts cdparanoia cdr crypt curl divx4linux dlloader esd flac gdbm gif gpm gtk2 hardened hardenedphp imagemagick imap imlib java libwww mad maildir mikmod mmx motif mysql nas ncurses nls nptl ogg opengl pam pdflib perl php pic png python readline ruby samba sasl sdl slang sse ssl svga tcltk tcpd tiff truetype userlocales vcd vorbis win32codecs x86 xine xml xml2 xv xvid zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
The gcc-bug I thought of doesn't occur on this gcc version, so my hint doesn't apply here :(
I am also seeing this exact same situation on a different system. Here is my emerege info: Portage 2.0.51.22-r2 (default-linux/amd64/2005.0, gcc-3.4.4, glibc-2.3.5-r1, 2.6.12-gentoo-r6 x86_64) ================================================================= System uname: 2.6.12-gentoo-r6 x86_64 AMD Athlon(tm) 64 Processor 3000+ Gentoo Base System version 1.6.13 distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] dev-lang/python: 2.3.5-r2 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, 1.9.6 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="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=k8 -pipe -O2" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib64/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/env.d" CXXFLAGS="-march=k8 -pipe -O2" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="ftp:///ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ http://mirror.datapipe.net/gentoo http://mirrors.tds.net/gentoo http://mirror.datapipe.net/gentoo" LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8" 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 a52 aac aalib acpi aim alsa apache2 audiofile avi berkdb bitmap-fonts bonobo cddb cdparanoia cdr cjk crypt cups curl dar64 dvd dvdr dvdread eds emboss encode evo evo2 fam ffmpeg flac foomaticdb fortran freetype gd gdbm ggi gif glut gnome gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile i8x0 ieee1394 imagemagick imap imlib imlib2 ipv6 jabber jack java jpeg junit kde libwww lm_sensors lzw lzw-tiff mad maildir matroska mjpeg motif mozilla mp3 mpeg mpeg4 mplayer multislot mysql mythtv nas ncurses nls nvidia odbc offensive ogg oggvorbis opengl pam pcmcia pdflib perl php png python qt quicktime readline real samba sdl spell sqlite ssl tcltk tcpd theora tidy tiff transcode truetype-fonts type1-fonts usb userlocales vcd videos vim-with-x vorbis wifi wxwindows xine xinerama xml xml2 xmms xpm xv xvid yv12 zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LDFLAGS, LINGUAS
Okay.. I managed to figure this out. My problem was a result of a bad m2v file. Mostly due to some bad options in jpeg2yuv and mpeg2enc. Once I had a valid m2v file this worked fine.
Report it upstream if it's still an issue with recent versions, and if they'll provide a patch, feel free to reopen.
