I was upgrading my @system set (using 'emerge --deep --update @system') and, after glibc was upgraded, the next package failed to emerge: >>> Installing (32 of 66) dev-lang/python-3.9.0::gentoo >>> Emerging (33 of 66) sys-libs/glibc-2.32-r3::gentoo >>> Installing (33 of 66) sys-libs/glibc-2.32-r3::gentoo >>> Emerging (34 of 66) dev-lang/python-3.7.9::gentoo >>> Failed to emerge dev-lang/python-3.7.9, Log file: >>> '/var/tmp/portage/dev-lang/python-3.7.9/temp/build.log' >>> Jobs: 33 of 66 complete, 1 failed Load avg: 2.69, 4.09, 2.83 * Messages for package sys-libs/glibc-2.32-r3: * Applying Gentoo Glibc Patchset 2.32-2 * Messages for package dev-lang/python-3.7.9: * ERROR: dev-lang/python-3.7.9::gentoo failed (unpack phase): * unpack: failure unpacking Python-3.7.9.tar.xz Upon investigating, I noticed tar is crashing with SIGSEGV. Here's a snippet of running it with gdb: Starting program: /bin/tar xzf a.tar.gz [Detaching after fork from child process 22347] Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7ad1270 in __nss_readline () from /lib64/libc.so.6 I noticed the same happens with rsync: (gdb) run -av a/ b/ Starting program: /usr/bin/rsync -av a/ b/ [Detaching after fork from child process 21016] sending incremental file list Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7aa9270 in __nss_readline () from /lib64/libc.so.6 Note that both rsync and tar are built with USE=static. My first guess would be to try recompiling tar, but I can't emerge packages with a broken tar :/ The reason I'm opening a bug report is because this may be a glibc (ebuild?) bug, so I welcome suggestions for debugging this. Otherwise, I'll probably replace /bin/tar with busybox and try re-emerging tar. I can provide further logs/info upon request. Thanks in advance. Reproducible: Didn't try # genlop -u | grep glibc | tail -n2 Fri Jan 1 14:31:40 2021 <<< sys-libs/glibc-2.31-r6 Fri Jan 1 14:31:49 2021 >>> sys-libs/glibc-2.32-r3 # emerge --info net-misc/rsync app-arch/tar glibc Portage 3.0.8 (python 3.7.8-final-0, default/linux/amd64/17.1/no-multilib/hardened, gcc-9.3.0, glibc-2.32-r3, 5.4.48-gentoo-minimal x86_64) ================================================================= System Settings ================================================================= System uname: Linux-5.4.48-gentoo-minimal-x86_64-Intel_Xeon_E312xx_-Sandy_Bridge,_IBRS_update-with-gentoo-2.7 KiB Mem: 9867560 total, 7289216 free KiB Swap: 10485756 total, 10485756 free Timestamp of repository gentoo: Fri, 01 Jan 2021 11:15:01 +0000 Head commit of repository gentoo: e47ebc6c160cad1de9f7484eabb0bd750d00d0e1 sh bash 5.0_p18 ld GNU ld (Gentoo 2.33.1 p2) 2.33.1 distcc 3.3.3 x86_64-pc-linux-gnu [disabled] app-shells/bash: 5.0_p18::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.30.3::gentoo dev-lang/python: 2.7.18-r4::gentoo, 3.6.11-r2::gentoo, 3.7.8-r2::gentoo, 3.8.5::gentoo, 3.9.0::gentoo dev-util/cmake: 3.16.5::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.7::gentoo sys-apps/openrc: 0.42.1::gentoo sys-apps/sandbox: 2.20::gentoo sys-devel/autoconf: 2.69-r5::gentoo sys-devel/automake: 1.13.4-r2::gentoo, 1.16.2-r1::gentoo sys-devel/binutils: 2.33.1-r1::gentoo, 2.34-r2::gentoo sys-devel/gcc: 5.5.0::gentoo, 6.5.0-r3::gentoo, 7.4.0-r2::gentoo, 7.5.0-r1::gentoo, 8.3.0-r1::gentoo, 8.4.0-r1::gentoo, 9.2.0-r2::gentoo, 9.3.0-r1::gentoo sys-devel/gcc-config: 2.3.2-r1::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 5.4-r1::gentoo (virtual/os-headers) sys-libs/glibc: 2.32-r3::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: rsync sync-uri: rsync://ftp.rnl.tecnico.ulisboa.pt/pub/gentoo/gentoo-portage priority: -1000 sync-rsync-extra-opts: sync-rsync-verify-jobs: 1 sync-rsync-verify-max-age: 24 sync-rsync-verify-metamanifest: yes ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /etc/stunnel/stunnel.conf /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.6/conf /var/bind" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.2/ext-active/ /etc/php/apache2-php7.3/ext-active/ /etc/php/apache2-php7.4/ext-active/ /etc/php/cgi-php7.2/ext-active/ /etc/php/cgi-php7.3/ext-active/ /etc/php/cgi-php7.4/ext-active/ /etc/php/cli-php7.2/ext-active/ /etc/php/cli-php7.3/ext-active/ /etc/php/cli-php7.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -pipe -march=native" DISTDIR="/var/db/repos/gentoo/distfiles" EMERGE_DEFAULT_OPTS="--quiet-build --quiet-fail --jobs=1 --ask-enter-invalid --buildpkg-exclude 'virtual/* acct-user/* acct-group/* sys-kernel/*-sources rnl/*'" ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg compressdebug config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="ftp://ftp.rnl.tecnico.ulisboa.pt/pub/gentoo/gentoo-distfiles" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9 -l10" PKGDIR="/var/db/repos/gentoo/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 --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="amd64 bash-completion bzip2 caps crypt hardened iconv ipv6 libglvnd libtirpc logrotate ncurses nls nptl openmp pam pcre pie readline seccomp split-usr ssl ssp unicode vim-syntax xattr xtpax zlib" ABI_X86="64" ADA_TARGET="gnat_2018" 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" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd 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="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 aes avx pclmul popcnt sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2 php7-3 php7-4" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python3_8 python3_7" RUBY_TARGETS="ruby26" USERLAND="GNU" 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: CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= net-misc/rsync-3.2.3::gentoo was built with the following: USE="iconv ipv6 ssl static xattr -acl -examples -libressl -lz4 -stunnel -system-zlib -xxhash -zstd" CPU_FLAGS_X86="sse2" LDFLAGS="-Wl,-O1 -Wl,--as-needed -static" app-arch/tar-1.32::gentoo was built with the following: USE="nls static (xattr) -acl -minimal (-selinux)" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg compressdebug config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox 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 -static" sys-libs/glibc-2.32-r3::gentoo was built with the following: USE="caps (crypt) multiarch nscd (ssp) (static-libs) -audit (-cet) -compile-locales -custom-cflags -doc -gd -headers-only (-multilib) -profile (-selinux) -static-pie -suid -systemtap -test (-vanilla)" CFLAGS="-pipe -march=native -O2" CXXFLAGS="-pipe -march=native -O2" FEATURES="binpkg-docompress sfperms buildpkg protect-owned qa-unresolved-soname-deps unmerge-logs assume-digests usersandbox pid-sandbox sandbox unmerge-orphans multilib-strict fixlafiles userpriv network-sandbox distlocks binpkg-logs compressdebug binpkg-dostrip splitdebug unknown-features-warn binpkg-multi-instance ebuild-locks merge-sync ipc-sandbox news userfetch strict parallel-fetch xattr preserve-libs usersync config-protect-if-modified"
Yes, USE=static requires that programs not to use NSS facility (that requires dynamic library loading and has to match glibc versions at runtime and static link time). In bug #741116 rsync lost USE=static precisely due to this problem. If `tar` has no special provision to work in USE=static it should also not provide known-broken option. At a glance on the ebuild it does only `use static && append-ldflags -static` which is not enough. Reassigning to base-system@ to remove USE=static. To restore a system to working state I suggest you to pick working tar and rsync from a recent gentoo stage3 build.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=1766e2a34d57bf77074164320d0d417d3162f6ee commit 1766e2a34d57bf77074164320d0d417d3162f6ee Author: Mike Gilbert <floppym@gentoo.org> AuthorDate: 2021-01-04 22:37:26 +0000 Commit: Mike Gilbert <floppym@gentoo.org> CommitDate: 2021-01-04 22:37:26 +0000 app-arch/tar: drop 'static' USE flag Closes: https://bugs.gentoo.org/763585 Signed-off-by: Mike Gilbert <floppym@gentoo.org> app-arch/tar/{tar-1.32.ebuild => tar-1.32-r1.ebuild} | 15 +++++++-------- .../tar/{tar-1.32.90.ebuild => tar-1.32.90-r1.ebuild} | 19 ++++++++++--------- 2 files changed, 17 insertions(+), 17 deletions(-)
