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Bug 406315 - app-misc/mc-4.8.1-r2[xdg] mceedit segfaults if ~/.config is file
Summary: app-misc/mc-4.8.1-r2[xdg] mceedit segfaults if ~/.config is file
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Alex Alexander (RETIRED)
Depends on:
Reported: 2012-02-29 15:16 UTC by Marcin Mirosław
Modified: 2012-03-21 19:11 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Marcin Mirosław 2012-02-29 15:16:23 UTC
If i remove ~/.config && touch ~/.config next start mceedit i'm getting segfault.

gdb /usr/bin/mc core 
Reading symbols from /usr/bin/mc...Reading symbols from /usr/lib64/debug/usr/bin/mc.debug...done.

warning: core file may not match specified executable file.
[New LWP 8951]

warning: Can't read pathname for load map: Input/output error.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/".
Core was generated by `mcedit a'.
Program terminated with signal 11, Segmentation fault.
#0  0x000000000043f50d in concat_dir_and_file (dir=0x0, file=0x50aee0 "mcedit") at util.c:1131
1131    util.c: No such file or directory.
(gdb) bt full
#0  0x000000000043f50d in concat_dir_and_file (dir=0x0, file=0x50aee0 "mcedit") at util.c:1131
        i = 32713
#1  0x00000000004c93d8 in edit_file (_file=0x23087b0 "a", line=0) at editwidget.c:366
        dir = 0xa600445a52 <Address 0xa600445a52 out of bounds>
        made_directory = 0
        edit_dlg = 0x456684
        wedit = 0x7fff3ce9f240
        menubar = 0x7fff3ce9f210
#2  0x0000000000493b4c in mc_maybe_editor_or_viewer () at midnight.c:946
No locals.
#3  0x0000000000494d50 in do_nc () at midnight.c:1657
        midnight_colors = {9, 9, 9, 9, 9}
#4  0x000000000041821a in main (argc=2, argv=0x7fff3ce9f3c8) at main.c:516
        error = 0x0
        isInitialized = 1

Reproducible: Always

# emerge --info
FEATURES variable contains unknown value(s): Xfail-clean, Xkeepwork

Portage 2.2.0_alpha89_p3 (default/linux/amd64/10.0/desktop/kde, gcc-4.6.2, glibc-2.14.1-r2, 3.2.6-gentoo x86_64)
System uname: Linux-3.2.6-gentoo-x86_64-Intel-R-_Core-TM-2_Duo_CPU_E8400_@_3.00GHz-with-gentoo-2.1
Timestamp of tree: Wed, 29 Feb 2012 07:00:01 +0000
ccache version 3.1.7 [enabled]
app-shells/bash:          4.2_p20
dev-java/java-config:     2.1.11-r3
dev-lang/python:          2.7.2-r3, 3.2.2
dev-util/ccache:          3.1.7
dev-util/cmake:           2.8.7-r3
dev-util/pkgconfig:       0.26
sys-apps/baselayout:      2.1
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.13, 2.68
sys-devel/automake:       1.11.3
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.4.6-r1, 4.5.3-r2, 4.6.2
sys-devel/gcc-config:     1.5-r2
sys-devel/libtool:        2.4.2
sys-devel/make:           3.82-r3
sys-kernel/linux-headers: 3.2-r1 (virtual/os-headers)
sys-libs/glibc:           2.14.1-r2
Repositories: gentoo
Installed sets: 
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="* -@EULA AdobeFlash-10.1 PUEL Q3AEULA skype-eula dlj-1.1 Oracle-BCLA-JavaSE"
CFLAGS="-O0 -march=native -pipe -g"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O0 -march=native -pipe -g"
EMERGE_DEFAULT_OPTS=" --quiet-build=n"
FEATURES="Xfail-clean Xkeepwork assume-digests binpkg-logs ccache collision-protect distlocks ebuild-locks fixlafiles news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="pl en es es_ES"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
USE="64bit X a52 aac acl acpi alsa amd64 apm async bash-completion bfq bittorrent branding bzip2 cairo caps cdda cdr chroot cli consolekit crypt cups cxx dbus declarative dmx dri dvd dvdr emboss encode exif fam firefox ftp gif glibc-omitfp gpm graphite gstreamer iconv idn iproute2 ipv6 ithreads jpeg kde kipi laptop lcms libnotify lightning logrotate mad mmap mmx mmxext mng modules mp3 mp4 mpeg mudflap multilib ncurses network-cron nls nptl nptlonly nsplugin nspluginwrapper objc ogg opengl openmp openssl optimization optimized-qmake pam pango pch pcre pdf phonon plasma png policykit ppds pppd qt3support qt4 readline samba sdl semantic-desktop session sharedmem smp spell sse sse2 sse3 sse4_1 ssl ssse3 startup-notification svg sysfs threads threadsafe tiff tools truetype udev unicode urandom usb vim vim-pager vim-syntax vorbis x264 xattr xcb xcomposite xinerama xml xorg xscreensaver xulrunner xv xvid zip zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cgid dav dbd deflate dir env expires ext_filter filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id usertrack vhost_alias" APACHE2_MPMS="worker" CALLIGRA_FEATURES="kexi words flow plan stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="pl en es es_ES" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Comment 1 Sergei Trofimovich (RETIRED) gentoo-dev 2012-02-29 16:24:43 UTC
The bug was fixed quite a while a go.

Did you change .config _before_ or _after_ mc was started?

And, can you paste 'mc --version' output here?
Comment 2 Marcin Mirosław 2012-02-29 17:36:47 UTC
Today i can't provice 'mc --version'. I created file .config before i start mcedit (not mc).
Comment 3 Sergei Trofimovich (RETIRED) gentoo-dev 2012-02-29 18:54:51 UTC
(In reply to comment #2)
> Today i can't provice 'mc --version'. I created file .config before i start
> mcedit (not mc).

Ah, no need to. I've reproduced it here as well. Will look at it. Thanks!
Comment 4 Sergei Trofimovich (RETIRED) gentoo-dev 2012-03-20 20:05:23 UTC
Hopefully fixed upstream and pushed to the tree as:

> *mc-4.8.2 (20 Mar 2012)
> Version bump. Don't require user to choose from ncurses/slang (bug #353679 by
> Ulrich Müller and others); use slang by default as less buggy implementation.
> New release among others fixes crash when ~/.config is not a dir (bug #406315
> by Marcin Mirosław).

Please, check if it fixes the issue for you and reopen if it does not.

Thanks for the detailed report, Marcin!
Comment 5 Marcin Mirosław 2012-03-21 08:49:14 UTC
Thanks, works correctly now, can't reproduce segfault. 
There is new issue with mceedit, i fill new bug;)
Comment 6 Sergei Trofimovich (RETIRED) gentoo-dev 2012-03-21 19:11:53 UTC
(In reply to comment #5)
> Thanks, works correctly now, can't reproduce segfault. 
> There is new issue with mceedit, i fill new bug;)

Heh, thanks for testing and catching another one!
I'll pass that one to upstream as well.