Valgrind fails to start if the 1g_lowmem_i386 kernel patch (used in the ck patchset. Look here for details: http://members.optusnet.com.au/ckolivas/kernel/) is being used. Valgrind fails with a memory error, and says that it cannot load stage2. Based on a patch given here (http://sourceforge.net/mailarchive/message.php?msg_id=10683243) I have created a patch which makes valgrind work on my ck-sources based kernel. The patch should only be applied if the 1g_lowmem_i386 patch is applied (and enabled). I don't know how to do this, so I modified my ebuild to blindly apply it. The kernel config option that is enabled with the 1g_lowmem_i386 patch is: CONFIG_1GLOWMEM=y Reproducible: Always Steps to Reproduce: 1. Compile and boot a kernel with the 1g_lowmem_i386 patch enabled. 2. emerge valgrind 3. run valgrind, and watch it fail to start Actual Results: Valgrind fails to start, with an error message similar to: # valgrind Executable range 0xb0000000-0xb01f4b40 is outside the acceptable range 0x80d0000-0x7ffff000 valgrind: failed to load /usr/lib/valgrind/stage2: Cannot allocate memory Expected Results: Valgrind should have been able to start. irasnyd@yuki ~ $ emerge info Portage 2.0.51.22-r2 (default-linux/x86/2005.0, gcc-3.4.4, glibc-2.3.5-r1, 2.6.13-archck1 i686) ================================================================= System uname: 2.6.13-archck1 i686 AMD Athlon(tm) XP 3000+ Gentoo Base System version 1.12.0_pre8 ccache version 2.4 [disabled] dev-lang/python: 2.4.1-r1 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r7 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: 2.16.1 sys-devel/libtool: 1.5.20 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=athlon-xp -O2 -fomit-frame-pointer -pipe -fforce-addr -fweb -ftracer -funit-at-a-time" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /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/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon-xp -O2 -fomit-frame-pointer -pipe -fforce-addr -fweb -ftracer -funit-at-a-time -fvisibility-inlines-hidden" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig candy distlocks fixpackages sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="http://gentoo.ccccom.com http://gentoo.llarian.net/ http://gentoo.osuosl.org/ http://gentoo.oregonstate.edu http://www.ibiblio.org/pub/Linux/distributions/gentoo" LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--sort-common -s" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage /usr/local/gentopia" SYNC="rsync://irasnyd.homelinux.com/gentoo-portage" USE="x86 3dnow 3dnowext X a52 aac alsa ao apm avi berkdb bzip2 cdr crypt cups curl dbus dvd dvdr dvdread emboss fam fbcon ffmpeg flac freetype gdbm gif gimpprint gphoto2 gpm gstreamer gtk gtk2 gtkhtml hal imagemagick imlib java jpeg kde kdeenablefinal libg++ libwww mad matroska mikmod mmap mmx mmxext mozilla mp3 mpeg ncurses no_wxgtk1 nowebdav nptl nptlonly offensive ogg oggvorbis opengl pam pdflib perl png python qt quicktime readline real scanner sdl slang spell sse ssl tcpd theora threads truetype truetype-fonts unicode usb userlocales vorbis win32codecs wxwindows xine xml2 xmms xprint xv xvid zlib video_cards_radeon userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LINGUAS, MAKEOPTS
Created attachment 67865 [details, diff] valgrind_1GLowmem.patch This is my patch that fixes the problem. It allows valgrind to start with the 1g_lowmem_i386 patch applied to the kernel.
ck-sources are not supported
