Package: e2fsprogs Version: 1.42.1-1 Severity: normal When investigating why e2resizing a 100G filesystem to 75G takes several hours of *CPU* time on a Core i7 computer (in the "Scanning inode table" phase -- you might get a bug report about that later if turning optimizations on doesn't help very much), I ran into the following:
The e2fsprogs-dbg package doesn't actually seem to include any debug information, *except* for e2fsck.static, which I'm at loss to explain, since I don't see any -g switches passed to gcc in my build logs for any gcc invokation when building e2fsprogs. Moreover, almost everything in the package is compiled without optimizations. (By the way, the e2fsck.static debug info file is in wrong place, /usr/lib/debug/e2fsck.static instead of /usr/lib/debug/sbin/e2fsck.static, which causes it to not be found by various tools...) After figuring out how to un-hide the relevant information cleverly hidden from build logs by modifying debian/rules to pass --enable-verbose-makecmds to configure, a few things jump out from the build logs. You can get the entire build log from [1]; here's just some excerpts with line numbers. To summarize: * I think nothing is being built with -g * I think that only the BF version, whatever that is (bootfloppies?), is being built with -Os; all others are being built without any optimization flags at all * The debug info file for e2fsck.static is installed in a wrong directory [1] http://users.tkk.fi/sliedes/e2fsprogs_1.42.1-1_amd64.build Sami ------------------------------------------------------------ 20 dpkg-source: info: building e2fsprogs in e2fsprogs_1.42.1-1.dsc 21 debian/rules build 22 /bin/sh: 1: Syntax error: Bad fd number 23 /bin/sh: 1: Syntax error: Bad fd number 24 /bin/sh: 1: Syntax error: Bad fd number ------------------------------------------------------------ That's scary... ------------------------------------------------------------ 29 cd /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/debian/BUILD-STD && AWK=/usr/bin/awk \ 30 /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/configure --disable-e2initrd-helper --enable-elf-shlibs --enable-quota --infodir=/usr/share/info --enable-verbose-makecmds --disable-fsck --disable-libblkid --disable-libuuid --disable-uuidd --enable-symlink-install --with-multiarch=x86_64-linux-gnu \ 31 CFLAGS=" -D__NO_STRING_INLINES" CPPFLAGS="" LDFLAGS="" ------------------------------------------------------------ Note the curious CFLAGS passed. No -O, no -g. ------------------------------------------------------------ 1104 /bin/sh: 1: Syntax error: Bad fd number 1105 /bin/sh: 1: Syntax error: Bad fd number 1106 /bin/sh: 1: Syntax error: Bad fd number [...] 1110 cd /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/debian/BUILD-BF && AWK=/usr/bin/awk \ 1111 /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/configure --disable-e2initrd-helper --enable-elf-shlibs --enable-quota --infodir=/usr/share/info --enable-verbose-makecmds --disable-fsck --disable-libblkid --disable-libuuid --disable-uuidd --disable-nls --disable-imager --disable-testio-debug --disable-uuidd --disable-tls --disable-debugfs \ 1112 CFLAGS=" -D__NO_STRING_INLINES -Os -fomit-frame-pointer" CPPFLAGS="" LDFLAGS="" ------------------------------------------------------------ Scary syntax errors again. This time CFLAGS contains -Os, but no -g. ------------------------------------------------------------ 1983 /bin/sh: 1: Syntax error: Bad fd number 1984 /bin/sh: 1: Syntax error: Bad fd number [...] 1988 if type diet > /dev/null 2>&1 ; then \ 1989 cd /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/debian/BUILD-STATIC && AWK=/usr/bin/awk \ 1990 /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/configure --disable-nls --disable-imager --disable-uuidd --disable-tls --enable-verbose-makecmds \ 1991 --with-diet-libc CFLAGS=" -D__NO_STRING_INLINES"; \ 1992 else \ 1993 cd /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/debian/BUILD-STATIC && AWK=/usr/bin/awk \ 1994 /home/sliedes/scratch/rec/e/e2fsprogs-1.42.1/configure --disable-nls --disable-imager --disable-uuidd --disable-tls --enable-verbose-makecmds \ 1995 CFLAGS=" -D__NO_STRING_INLINES"; \ 1996 fi ------------------------------------------------------------ -- System Information: Debian Release: wheezy/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 3.2.4 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages e2fsprogs depends on: ii e2fslibs 1.42.1-1 ii libblkid1 2.20.1-1.2 ii libc6 2.13-26 ii libcomerr2 1.42.1-1 ii libss2 1.42.1-1 ii libuuid1 2.20.1-1.2 ii util-linux 2.20.1-1.2 e2fsprogs recommends no packages. Versions of packages e2fsprogs suggests: ii e2fsck-static 1.42.1-1 ii gpart <none> ii parted 2.3-8 -- no debconf information
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