61335 2004-08-23 01:31 0000 lftp memory leak: usage of memory increases after the program remains active for a while 2004-08-26 14:12:22 0000 1 1 1 Unclassified Gentoo Linux Applications unspecified x86 Linux RESOLVED FIXED P2 critical --- 1 da_master937@hotmail.com dragonheart@gentoo.org lewk@gentoo.org da_master937@hotmail.com 2004-08-23 01:31:42 0000 When I use lftp versions 3.0.5 to 3.0.7, memory usage of lftp slowly increases as time passes. After a few hours, I saw that lftp was consuming 300MiB of RAM. This problem does not manifest itself in lftp 3.0.3. The problem has been present prior to my transition to gcc 3.4, so I do not believe it to be a compiler problem. I also tried to compile the program with blank CFLAGS to no avail. Reproducible: Always Steps to Reproduce: 1. Run lftp 2. Wait 3. Check memory usage Actual Results: According to 'ps', memory usage slowly increased the longer the program ran, until eventually the program was killed by the kernel since it exhausted all the available memory. Expected Results: The software should have run without using so much memory. Portage 2.0.50-r9 (gcc34-x86-2004.2, gcc-3.4.1, glibc-2.3.4.20040808-r0, 2.6.7-gentoo-r11) ================================================================= System uname: 2.6.7-gentoo-r11 i686 Intel(R) Pentium(R) 4 CPU 2.26GHz Gentoo Base System version 1.5.3 distcc 2.16 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] Autoconf: sys-devel/autoconf-2.59-r4 Automake: sys-devel/automake-1.8.5-r1 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=pentium4 -Os -mfpmath=sse,387 -fomit-frame-pointer -fPIC -ftracer -fforce-addr -ffast-math -fweb -maccumulate-outgoing-args -pipe" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/share/config:/usr/kde/3.3/env:/usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/bind /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium4 -Os -mfpmath=sse,387 -fomit-frame-pointer -fPIC -ftracer -fforce-addr -ffast-math -fweb -maccumulate-outgoing-args -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="ftp:///ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://mirror.gentoo.ru/pub/mirror/gentoo/ http://mirror.datapipe.net/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage /usr/local/overlays/bmg-gnome-current.alternative" SYNC="rsync://rsync.ca.gentoo.org/gentoo-portage" USE="X Xaw3d aalib acl acpi aim alsa apache2 apm arts avi berkdb bidi bonobo bundled-libs bzlib canna cdr chroot cjk crypt cups curl dba dga dv dvd dvdr encode esd faad fbcon ffmpeg flac flash foomaticdb gd gdbm gif gimpprint gnome gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile icc icq imagemagick imlib innodb ipv6 java jikes joystick jpeg kde kerberos ldap libg++ libwww mad matroska matrox memlimit mikmod mmx mng monkey mono motif mozilla mpeg msn mysql ncurses nls nptl oav oggvorbis opengl oscar oss pam pdflib perl pic plotutils png ppds psyco python qt quicktime readline samba scanner sdl slang slp socks5 spell sse ssl stroke svg svga tcltk tcpd tetex theora tiff transcode truetype unicode usb video_cards_radeon videos wmf wxwindows x86 xine xinerama xml xml2 xmms xosd xv xvid yahoo zlib zvbi" miguel.filipe@gmail.com 2004-08-23 09:42:47 0000 If I were you, I would try less agressive gcc optimizations... the problem might be there... miguel da_master937@hotmail.com 2004-08-23 12:32:36 0000 "I also tried to compile the program with blank CFLAGS to no avail.", so I do not believe my gcc optimizations are at fault. As well as the fact that version 3.0.3 of lftp works flawlessly, only versions 3.0.5 and above are affected. da_master937@hotmail.com 2004-08-23 12:35:58 0000 Also, I tried gcc 3.3, and ICC (Intel C Compiler) as well, and the memory leak is still present in lftp 3.0.5 and above. lewk@gentoo.org 2004-08-23 18:54:29 0000 Created an attachment (id=38066) lftp-3.0.7-memleak.patch Patch to fix 12 memory leaks in the code. Patch emailed to upstream to verify validity. lewk@gentoo.org 2004-08-23 18:55:04 0000 Created an attachment (id=38067) lftp-3.0.7-r1.ebuild Ebuild revision -r1 to apply memory leak patch. lewk@gentoo.org 2004-08-23 18:57:03 0000 Created an attachment (id=38070) lftp-3.0.7-r1.ebuild Revised ebuild to apply memory leak patch. lewk@gentoo.org 2004-08-24 08:22:33 0000 Created an attachment (id=38096) lftp-3.0.7-memleak.patch Fixed an few things. dragonheart@gentoo.org 2004-08-26 14:12:22 0000 fixed - thanks for the patch 38066 2004-08-23 18:54 0000 lftp-3.0.7-memleak.patch lftp-3.0.7-memleak.patch text/plain LS0tIHNyYy9TTVRhc2suY2MJMjAwNC0wOC0wMyAwNzozNDozNy4wMDAwMDAwMDAgLTA0MDAKKysr IG5ld3NyYy9TTVRhc2suY2MJMjAwNC0wOC0yMyAyMToyMDowNC45MTQ0ODI5ODMgLTA0MDAKQEAg LTIyMSw2ICsyMjEsMTEgQEAKICAgIHJldHVybiBjb3VudDsKIH0KIAordm9pZCBTTVRhc2s6OkNs ZWFudXAoKQoreworICBkZWxldGUgaW5pdF90YXNrOworfQorCiAjaW5jbHVkZSA8ZXJybm8uaD4K ICNpbmNsdWRlICJSZXNNZ3IuaCIKIFJlc0RlY2wgZW5vc3BjX2ZhdGFsICgieGZlcjpkaXNrLWZ1 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