Bug 507916 – =app-misc/screen-4.2.0 USE=-nethack segmentation fault in Attacher () at attacher.c:613

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Lars Wendler (Polynomial-C) (RETIRED) 2014-04-17 14:07:14 UTC]

# gdb -q screen
Reading symbols from screen...done.
(gdb) run
Starting program: /usr/bin/screen 
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?

[screen caught signal 11. (core dumped)]

Program received signal SIGHUP, Hangup.
0x00007fddd756a000 in pause () from /lib64/libc.so.6
(gdb) bt
#0  0x00007fddd756a000 in pause () from /lib64/libc.so.6
#1  0x000000000042bb03 in Attacher () at attacher.c:613
#2  0x000000000040732f in main (ac=0, av=0x7fff732aacb0) at screen.c:1247
(gdb) bt full
#0  0x00007fddd756a000 in pause () from /lib64/libc.so.6
No symbol table info available.
#1  0x000000000042bb03 in Attacher () at attacher.c:613
No locals.
#2  0x000000000040732f in main (ac=0, av=0x7fff732aacb0) at screen.c:1247
        n = <optimized out>
        ap = <optimized out>
        av0 = 0x7fff732ac1ae "/usr/bin/screen"
        socknamebuf = "28642.pts-14.shanghai\000\000\000\004\000\000\000\000\000\000\000 MK\327\335\177\000\000\a\000\000\000\000\000\000\000\207\360\226|\000\000\000\000\317\350\357\327\335\177\000\000.\025@\000\000\000\000\000\020\250*s\377\177\000\000\360LK\327\335\177\000\000\300\033L\327\335\177\000\000 \251*s\377\177\000\000\020\251*s\377\177\000\000\a\000\000\000\000\000\000\000]\352\357\327\335\177\000\000\000\000\000\000\000\000\000\000h\367\f\330\335\177\000\000\310\004\r\330\335\177\000\000\324V\357\327\335\177\000\000\340\034L\327\335\177\000\000\310T\357\327\335\177\000\000\000\000\000\000\001\000\000\000\234\b\000\000\001\000\000\000\000\000\340UU\346\376\377"...
        mflag = <optimized out>
        myname = <optimized out>
        SockDir = <optimized out>
        st = {st_dev = 12, st_ino = 161437581, st_nlink = 2, st_mode = 16832, 
          st_uid = 0, st_gid = 0, __pad0 = 0, st_rdev = 0, st_size = 40, 
          st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1397742590, 
            tv_nsec = 612798138}, st_mtim = {tv_sec = 1397742590, 
---Type <return> to continue, or q <return> to quit---
            tv_nsec = 612798138}, st_ctim = {tv_sec = 1397742590, 
            tv_nsec = 612798138}, __unused = {0, 0, 0}}
        oumask = 18
        nwin = {StartAt = -1, aka = 0x0, args = 0x0, dir = 0x0, term = 0x0, 
          aflag = -1, flowflag = -1, lflag = -1, histheight = -1, 
          monitor = -1, wlock = -1, silence = -1, wrap = -1, Lflag = -1, 
          slow = -1, gr = -1, c1 = -1, bce = -1, encoding = -1, hstatus = 0x0, 
          charset = 0x0}
        detached = 0
        sockp = <optimized out>
        sty = 0x0
(gdb) 



# emerge --info screen
Portage 2.2.10 (default/linux/amd64/13.0/desktop/kde, gcc-4.8.2-asneeded, glibc-2.17, 3.12.17 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-3.12.17-x86_64-Quad-Core_AMD_Opteron-tm-_Processor_2389-with-gentoo-2.2
KiB Mem:     8242376 total,   1297108 free
KiB Swap:    2097148 total,   1831444 free
Timestamp of tree: Thu, 17 Apr 2014 13:30:01 +0000
ld GNU ld (GNU Binutils) 2.24
app-shells/bash:          4.3_p11-r1
dev-java/java-config:     2.2.0
dev-lang/python:          2.7.6, 3.3.5, 3.4.0
dev-util/cmake:           2.8.12.2
dev-util/pkgconfig:       0.28-r1
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.9.6-r3, 1.10.3, 1.11.6, 1.14.1
sys-devel/binutils:       2.24-r2
sys-devel/gcc:            4.6.4, 4.8.2
sys-devel/gcc-config:     1.8::poly-c
sys-devel/libtool:        2.4.2
sys-devel/make:           4.0-r1
sys-kernel/linux-headers: 3.9 (virtual/os-headers)
sys-libs/glibc:           2.17::poly-c
Repositories: gentoo kde-sunset poly-c
Installed sets: @system
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=barcelona -mtune=barcelona -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-3.0 /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/X11/Sessions /etc/X11/app-defaults /etc/X11/xinit /etc/adobe /etc/bonobo-activation /etc/ca-certificates /etc/ca-certificates.conf /etc/dbus-1 /etc/env.d /etc/fonts /etc/fonts/fonts.conf /etc/foomatic /etc/games /etc/gconf /etc/gentoo-release /etc/gimp /etc/gnome-vfs-2.0 /etc/gre.d /etc/gtk-2.0 /etc/hp /etc/hsqldb /etc/htdig /etc/init.d /etc/iproute2 /etc/java-config-2 /etc/lftp /etc/logrotate.d /etc/ntop /etc/opt /etc/pango /etc/profile.d /etc/qt4 /etc/revdep-rebuild /etc/sandbox.d /etc/sasl2 /etc/sensors.d /etc/sgml /etc/sound /etc/ssl /etc/ssmtp /etc/t1lib /etc/terminfo /etc/vbox /etc/xdg /etc/xinetd.d /etc/xml"
CXXFLAGS="-march=barcelona -mtune=barcelona -O2 -pipe"
DISTDIR="/var/tmp/distfiles"
EMERGE_DEFAULT_OPTS="--alphabetical --with-bdeps=y --misspell-suggestions=n --autounmask=n --quiet-build=n --verbose-slot-rebuilds=n"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch protect-owned sandbox sfperms sign strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ ftp://ftp.tu-clausthal.de/pub/linux/gentoo/ http://gentoo.oregonstate.edu http://www.ibiblio.org/pub/Linux/distributions/gentoo"
INSTALL_MASK="/etc/systemd /lib/systemd /lib32/systemd /lib64/systemd /usr/lib/systemd /usr/lib32/systemd /usr/lib64/systemd /etc/init.d/functions.sh"
LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu -Wl,--sort-common -Wl,--as-needed"
MAKEOPTS="-j8"
PKGDIR="/opt/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/var/portage"
PORTDIR_OVERLAY="/var/lib/layman/kde-sunset /usr/local/portage"
USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 berkdb branding bzip2 c++0x cairo caps cdda cdr cli cracklib crypt css cups cxx dbus declarative dri dts dvd dvdr emboss encode exif faac fam ffmpeg firefox flac gdbm gif gles2 gmp gnutls gtk iconv icu idn imagemagick inotify jpeg jpeg2k kde kipi lame lcms libnotify lzma mac mad matroska midi mmap mmx mmxext mng modules mp3 mp4 mpeg mpfr multilib ncurses nls nptl nsplugin ogg opengl openmp opus pam pango pcre pdf phonon plasma png ppds qt3support qt4 quicktime readline rtmp schroedinger sdl session slang speex spell sse sse2 ssl startup-notification svg theora threads tiff truetype twolame udev unicode upower usb vaapi vcd vorbis vpx wxwidgets x264 x265 xattr xcb xcomposite xinerama xml xscreensaver xv xvid xvmc zlib zsh-completion" ABI_X86="64" ALSA_CARDS="emu10k1 hda-intel usb-audio" APACHE2_MODULES="access_compat alias authn_anon auth_basic authn_core authn_default authn_file authz_core authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dir env file_cache filter headers include info log_config mime mime_magic rewrite status unique_id unixd userdir vhost_alias" ELIBC="glibc" GRUB_PLATFORMS="pc" INPUT_DEVICES="evdev joystick" KERNEL="linux" LIBREOFFICE_EXTENSIONS="pdfimport presenter-console presenter-minimizer" LINGUAS="de en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3 python3_4" RUBY_TARGETS="ruby21" USERLAND="GNU" VIDEO_CARDS="radeon"
Unset:  CPPFLAGS, CTARGET, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON

=================================================================
                        Package Settings
=================================================================

app-misc/screen-4.2.0 was built with the following:
USE="debug -multiuser -nethack pam (-selinux)"
CFLAGS="-march=barcelona -O1 -ggdb -pipe"
CXXFLAGS="-march=barcelona -O1 -ggdb -pipe"

[Comment 1 Amadeusz Sławiński 2014-04-17 18:13:14 UTC]

Can you try with USE="nethack"?

[Comment 2 Lars Wendler (Polynomial-C) (RETIRED) 2014-04-17 19:54:36 UTC]

(In reply to Amadeusz Sławiński from comment #1)
> Can you try with USE="nethack"?

No segfault with USE="nethack".

[Comment 3 Amadeusz Sławiński 2014-04-18 17:08:38 UTC]

Will be fixed in 4.2.1

http://git.savannah.gnu.org/cgit/screen.git/commit/?h=screen-v4&id=5b2ba5b3d48cb62894841f85a8c18db691491c8a

In 4.2.0 it actually uses --with-sys-screenrc=/etc/screenrc, so it reads /etc/screenrc and because of above bug it did run wrong commands.

[Comment 4 Lars Wendler (Polynomial-C) (RETIRED) 2014-04-18 17:19:36 UTC]

+  18 Apr 2014; Lars Wendler <[e-mail]> screen-4.2.0.ebuild,
+  +files/screen-4.2.0-nonethack_segfault_fix.patch:
+  Fix segfault when being built without nethack support (bug #507916).
+
Thank you for the quick fix :)