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shentino
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PostPosted: Mon Aug 13, 2012 2:44 pm    Post subject: shared library symbols for linux-gate.so.1 Reply with quote

I just updated my system yesterday and started getting this:

Quote:

warning: Could not load shared library symbols for linux-gate.so.1.
Do you need "set solib-search-path" or "set sysroot"?


I thought it might be due to disabling compat vdso in my kernel config, so I turned that back on but it didn't fix it.

I gave google a quick looksie but couldn't track down the root cause of this problem.

Anyone have advice? It may be a cosmetic issue but it's kinda spammy as I use GDB a *lot* for a project I'm working on.
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shentino
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PostPosted: Mon Aug 13, 2012 2:56 pm    Post subject: Reply with quote

Also, I ran "locate linux-gate.so.1" and strangely got zippo. it's like the file doesn't exist.

What gives? O-o
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xaviermiller
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PostPosted: Mon Aug 13, 2012 2:59 pm    Post subject: Reply with quote

Hello,

Did you ran
Code:
revdep-rebuild -i
?

Was there any message after the upgrade (in the "elogs")?
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Xavier Miller
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khayyam
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PostPosted: Mon Aug 13, 2012 3:22 pm    Post subject: Reply with quote

shentino wrote:
Also, I ran "locate linux-gate.so.1" and strangely got zippo. it's like the file doesn't exist.

shentino ... linux-gate.so.1 is a virtual DSO (VDSO), it doesn't exist on the filesystem, its provided by the kernel and used to speed up syscalls (if you note the output of ldd, inux-gate.so.1 is not associated with a file).

As for the error, my guess this is a due to the glibc update ...

best ... khay
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shentino
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PostPosted: Mon Aug 13, 2012 7:57 pm    Post subject: Reply with quote

My revdep rebuild was clean.

As for the glibc update...did I stumble across a bug?
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khayyam
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PostPosted: Mon Aug 13, 2012 8:16 pm    Post subject: Reply with quote

shentino wrote:
As for the glibc update...did I stumble across a bug?

shentino ... its hard to say, you haven't provided enough information. However, there have been a number of reports here related to 2.15-r2 since it was stablised, none of which related to linux-gate.so.1, but it would be the most obvious candidate.

best ... khay
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shentino
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PostPosted: Tue Aug 14, 2012 1:13 am    Post subject: Reply with quote

That would explain why it only started happening after my rebuild. There was a massive update of bintools, glibc, and so on.
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khayyam
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PostPosted: Tue Aug 14, 2012 1:32 am    Post subject: Reply with quote

shentino wrote:
That would explain why it only started happening after my rebuild. There was a massive update of bintools, glibc, and so on.

shentino ... well, I also did these updates and have had no issues whatsoever.

Code:
# emerge --info
Portage 2.1.11.9 (default/linux/x86/10.0, gcc-4.5.3, glibc-2.15-r2, 3.4.5-geek-gnu i686)
=================================================================
System uname: Linux-3.4.5-geek-gnu-i686-Genuine_Intel-R-_CPU_T2500_@_2.00GHz-with-gentoo-2.1
Timestamp of tree: Mon, 13 Aug 2012 11:45:01 +0000
app-shells/bash:          4.2_p20
dev-lang/python:          2.7.3-r2, 3.2.3
dev-util/cmake:           2.8.7-r5
dev-util/pkgconfig:       0.26
sys-apps/baselayout:      2.1-r1
sys-apps/openrc:          0.10.5
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.68
sys-devel/automake:       1.11.1
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.5.3-r2
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4-r1
sys-devel/make:           3.82-r3
sys-kernel/linux-headers: 3.1 (virtual/os-headers)
sys-libs/glibc:           2.15-r2
Repositories: gentoo pentoo init6 mv aporia-local
ACCEPT_KEYWORDS="x86"
ACCEPT_LICENSE="* -@EULA"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=native -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -march=native -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -march=i686 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles news parallel-fetch parse-eapi-ebuild-head protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
FFLAGS="-O2 -march=i686 -pipe"
GENTOO_MIRRORS="REMOVED"
INSTALL_MASK=" /usr/share/bash-completion /usr/lib/systemd/system"
LANG="en_GB.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en en_GB"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="--exclude-from=/etc/portage/rsync_excludes"
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"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/var/lib/layman/pentoo /var/lib/layman/init6 /var/lib/layman/mv /usr/local/portage"
SYNC="REMOVED"
USE="acl acpi alsa berkdb bzip2 caps cli cracklib crypt cxx dri fbcon fortran gdbm gpm iconv ipv6 maildir mmx modules mudflap ncurses nptl opengl openmp pam pcre readline session sse sse2 ssl tcpd threads truetype unicode usb vim-syntax x86 zlib zsh-completion" ALSA_CARDS="hda-intel" 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 cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets 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 synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_GB" PHP_TARGETS="php5-3" PYTHON_TARGETS="python3_2 python2_7" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="intel" 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"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, USE_PYTHON
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shentino
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PostPosted: Tue Aug 14, 2012 3:11 am    Post subject: Reply with quote

The only probram I've seen it happen with so far is gdb though.

*scratches head*

Maybe I'll give google another poke an dsee if more cases show up.

*shrugs*
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khayyam
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PostPosted: Tue Aug 14, 2012 3:56 am    Post subject: Reply with quote

shentino wrote:
The only probram I've seen it happen with so far is gdb though.

shentino ... well, have you tried re-merging gdb?

best ... khay
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loki_val
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PostPosted: Tue Aug 14, 2012 5:19 am    Post subject: Reply with quote

shentino wrote:
The only probram I've seen it happen with so far is gdb though.

*scratches head*

Maybe I'll give google another poke an dsee if more cases show up.

*shrugs*
This link says you should ignore it. Move along, nothing to see.
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shentino
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PostPosted: Tue Aug 14, 2012 12:27 pm    Post subject: Reply with quote

I found the upstream maintainers from the link you gave me.

Also, it seems that a workaround patch for this problem has disappeared.
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shentino
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PostPosted: Tue Aug 14, 2012 4:08 pm    Post subject: Reply with quote

I filed an upstream bug report against gdb

gdb is pointing fingers at glibc for breaking things, glibc is blaming gdb for not keeping up with an API change.

http://sourceware.org/bugzilla/show_bug.cgi?id=13097
http://sourceware.org/bugzilla/show_bug.cgi?id=14466
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shentino
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PostPosted: Tue Aug 14, 2012 4:14 pm    Post subject: Reply with quote

https://bugs.gentoo.org/show_bug.cgi?id=431400

Hopefully something gets done until the upstream guys figure out who is responsible.
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Isomorph
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PostPosted: Wed Oct 10, 2012 9:44 pm    Post subject: Reply with quote

I just solved a similar problem.

I got it when I compiled glibc, resulting in all GUI/gnome programs crashed
but they could run via gdb but complaint about linux-gate.so.1.

After many experiments the problem went away after I updated nvidia-drivers.
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pwaller
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PostPosted: Thu Nov 15, 2012 10:18 pm    Post subject: Reply with quote

I'm having the same problem. In addition, it seems that GDB can't find any of my splitdebug symbols!

I moved my debug symbols to another disk and used a bind mount to put them in the right place, and I can't remember if they have worked since then.
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