This is tested in a clean glibc no-multilib systemd chroot, although I first find it in a musl system. Reproducible: Always Steps to Reproduce: 1. emerge clang:12 clang:13 openjdk-bin:11 2. `CC=clang CXX=clang++` in /etc/portage/make.conf 3. emerge openjdk:11 failed 4. `CC=clang-12 CXX=clang++-12` in /etc/portage/make.conf 5. emerge openjdk:11 succeeded Actual Results: The log say: Optimizing the exploded image ( /bin/rm -f /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done.log && /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/bin/java -Xms64M -Xmx1600M -XX:ThreadStackSize=1536 -XX:+UseSerialGC -Xms32M -Xmx512M -XX:TieredStopAtLevel=1 -cp /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/buildtools/tools_jigsaw_classes --add-exports java.base/jdk.internal.module=ALL-UNNAMED build.tools.jigsaw.AddPackagesAttribute /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk > >(/usr/bin/tee -a /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done.log) 2> >(/usr/bin/tee -a /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done.log >&2) || ( exitcode=$? && /bin/cp /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done.log /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/make-support/failure-logs/jdk__packages_attribute.done.log && /bin/cp /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done.cmdline /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/make-support/failure-logs/jdk__packages_attribute.done.cmdline && exit $exitcode ) ) # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007f3d02b158c1, pid=3061021, tid=3061026 # # JRE version: (11.0.12+7) (build ) # Java VM: OpenJDK 64-Bit Server VM (11.0.12+7, mixed mode, tiered, compressed oops, serial gc, linux-amd64) # Problematic frame: # V [libjvm.so+0xb778c1] ObjectSynchronizer::inflate(Thread*, oopDesc*, ObjectSynchronizer::InflateCause)+0xf1 # # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # # An error report file with more information is saved as: # /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/make/hs_err_pid3061021.log # # /bin/bash: line 1: 3061021 Aborted /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/bin/java -Xms64M -Xmx1600M -XX:ThreadStackSize=1536 -XX:+UseSerialGC -Xms32M -Xmx512M -XX:TieredStopAtLevel=1 -cp /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/buildtools/tools_jigsaw_classes --add-exports java.base/jdk.internal.module=ALL-UNNAMED build.tools.jigsaw.AddPackagesAttribute /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk > >(/usr/bin/tee -a /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done.log) 2> >(/usr/bin/tee -a /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done.log >&2) gmake[3]: *** [ExplodedImageOptimize.gmk:41: /var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/build/linux-x86_64-normal-server-release/jdk/_packages_attribute.done] Error 134 gmake[3]: Leaving directory '/var/tmp/portage/dev-java/openjdk-11.0.12_p7/work/jdk11u-jdk-11.0.12-ga/make' gmake[2]: *** [make/Main.gmk:411: exploded-image-optimize] Error 2 hs_err_pid2632904.log contain more detail of backtrace: Current thread (0x00007f3cfc027000): JavaThread "Unknown thread" [_thread_in_vm, id=3061026, stack(0x00007f3d01d55000,0x00007f3d01e56000)] Stack: [0x00007f3d01d55000,0x00007f3d01e56000], sp=0x00007f3d01e54580, free space=1021k Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0xb778c1] ObjectSynchronizer::inflate(Thread*, oopDesc*, ObjectSynchronizer::InflateCause)+0xf1 V [libjvm.so+0xb77df5] ObjectLocker::ObjectLocker(Handle, Thread*, bool)+0x95 V [libjvm.so+0x73d276] InstanceKlass::link_class_impl(bool, Thread*)+0x306 V [libjvm.so+0x73d05e] InstanceKlass::link_class_impl(bool, Thread*)+0xee V [libjvm.so+0x73d05e] InstanceKlass::link_class_impl(bool, Thread*)+0xee V [libjvm.so+0x73d05e] InstanceKlass::link_class_impl(bool, Thread*)+0xee V [libjvm.so+0x73da17] InstanceKlass::link_class_or_fail(Thread*)+0x27 V [libjvm.so+0xbd4b27] universe_post_init()+0x327 V [libjvm.so+0x73b259] init_globals()+0xc9 V [libjvm.so+0xbafbd4] Threads::create_vm(JavaVMInitArgs*, bool*)+0x284 V [libjvm.so+0x7c2eb7] JNI_CreateJavaVM+0x57 C [libjli.so+0x52d2] JavaMain+0x112 C [libjli.so+0x8509] ThreadJavaMain+0x9 siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000000000000001 emerge --info: Portage 3.0.28 (python 3.9.7-final-0, default/linux/amd64/17.1/no-multilib/systemd, gcc-10.3.0, glibc-2.33-r1, 5.10.0-8-amd64 x86_64) ================================================================= System uname: Linux-5.10.0-8-amd64-x86_64-Intel-R-_Xeon-R-_Gold_5220R_CPU_@_2.20GHz-with-glibc2.33 KiB Mem: 131490788 total, 65421464 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Fri, 08 Oct 2021 05:51:27 +0000 Timestamp of repository gentoo-zh: Mon, 04 Oct 2021 01:06:16 +0000 sh bash 5.1_p8 ld GNU ld (Gentoo 2.37_p1 p0) 2.37 app-shells/bash: 5.1_p8::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.34.0-r2::gentoo dev-lang/python: 3.9.7::gentoo dev-util/cmake: 3.21.3::gentoo sys-apps/baselayout: 2.8::gentoo sys-apps/sandbox: 2.25::gentoo sys-devel/autoconf: 2.71-r1::gentoo sys-devel/automake: 1.16.5::gentoo sys-devel/binutils: 2.37_p1::gentoo sys-devel/gcc: 10.3.0-r2::gentoo sys-devel/gcc-config: 2.4::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 5.14::gentoo (virtual/os-headers) sys-libs/glibc: 2.33-r1::gentoo Repositories: gentoo location: /usr/portage/gentoo sync-type: git sync-uri: https://github.com/gentoo-mirror/gentoo priority: -1000 gentoo-zh location: /usr/portage/gentoo-zh sync-type: git sync-uri: https://github.com/gentoo-mirror/gentoo-zh.git masters: gentoo 12101111-overlay location: /usr/portage/local masters: gentoo priority: 1000 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="@FREE" CBUILD="x86_64-pc-linux-gnu" CC="clang" CFLAGS="-O2 -pipe -march=skylake" CHOST="x86_64-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/sandbox.d /etc/terminfo" CXX="clang++" CXXFLAGS="-O2 -pipe -march=skylake" DISTDIR="/var/cache/distfiles" 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 -march=skylake" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe -march=skylake" GENTOO_MIRRORS="https://mirrors.tuna.tsinghua.edu.cn/gentoo" LANG="zh_CN.UTF-8" LC_ALL="zh_CN.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j96" PKGDIR="/var/cache/binpkgs" 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="acl amd64 bzip2 cli crypt dri fortran gdbm iconv ipv6 libglvnd libtirpc ncurses nls nptl openmp pam pcre readline seccomp split-usr ssl systemd tcpd udev unicode xattr zlib" ABI_X86="64" ADA_TARGET="gnat_2019" 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" 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="php7-3 php7-4" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_9" PYTHON_TARGETS="python3_9" RUBY_TARGETS="ruby26" USERLAND="GNU" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RUSTFLAGS
Created attachment 744768 [details] build.log.xz
Created attachment 744771 [details] hs_err_pid3061021.log
reports or check upstream for possible patches, I'll add those as needed if they don't break everything else.
Created attachment 745089 [details, diff] Respect user-supplied optlevel for Clang One thing that can be an obstacle to tackling this is that OpenJDK's build system does not respect user-supplied optlevel. Regardless of what is specified in C(XX)?FLAGS, most objects are compiled with the -O3 optimization level. A patch is attached against this situation for Clang. Note that this patch assumes that the user-supplied optlevel is -O2 or lower. Otherwise C_O_FLAG_NORM="-O2" has to be specified.
JDK Bug System has an apparently related issue: https://bugs.openjdk.java.net/browse/JDK-8229258, the author of which points out undefined behaviors with regard to markOop{,Desc}. I suspect that the UBs are actually hit by Clang/LLVM 13. The fix is reported to have been merged in JDK 14, and in fact dev-java/openjdk-17_p35 in Gentoo repo seems to be free from this issue.
xtkoba@gmail.com thanks for looking and chiming in openjdk bugs lately, competent help is really appreciated. I don't have much time lately, but I'll try building it with clang with/without patch and maybe improve overall *flag situation too. openjdk sets flags for a reason, usually, it's quite sensitive code, so I'm a bit hesitant to force user's preferences blindly.
(In reply to Tee KOBAYASHI from comment #5) > JDK Bug System has an apparently related issue: > https://bugs.openjdk.java.net/browse/JDK-8229258, the author of which points > out undefined behaviors with regard to markOop{,Desc}. I suspect that the > UBs are actually hit by Clang/LLVM 13. > > The fix is reported to have been merged in JDK 14, and in fact > dev-java/openjdk-17_p35 in Gentoo repo seems to be free from this issue. It is indeed from Clang 13, see: https://reviews.llvm.org/D99790#2678384
I created a patch for JDK 11 that fixes this issue. I just created this account, so I can't link the patch here, but it's !23 on the jdk11u GitHub repository.
thanks! adding patch link here https://github.com/openjdk/jdk11u/pull/23 it's quite a large patch, let's see what maintainers say. if they approve it I'll add it to gentoo quickly. meanwhile users could use /etc/portage/patches I guess.
FreeBSD have a simple fix for this issue: https://github.com/battleblow/jdk11u/commit/305a68a90c722aa7a7b75589e24d5b5d554c96c1
