Using gcc-10.2.0 I get the following error while compiling zfs-kmod-9999. Issue is reported upstream. CC [M] /var/tmp/portage/sys-fs/zfs-kmod-9999/work/zfs-kmod-9999/module/zstd/lib/zstd.o In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/immintrin.h:103, from /var/tmp/portage/sys-fs/zfs-kmod-9999/work/zfs-kmod-9999/module/zstd/lib/zstd.c:1336: /usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/shaintrin.h: In function '_mm_sha1msg1_epu32': /usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/shaintrin.h:40:1: error: SSE register return with SSE disabled 40 | { | ^ Reproducible: Always Portage 3.0.4 (python 3.7.8-final-0, default/linux/amd64/17.1/no-multilib, gcc-10.2.0, glibc-2.32, 5.8.0-gentoo-r1 x86_64) ================================================================= System uname: Linux-5.8.0-gentoo-r1-x86_64-AMD_Ryzen_5_2500U_with_Radeon_Vega_Mobile_Gfx-with-gentoo-2.7 KiB Mem: 16047900 total, 729512 free KiB Swap: 33554428 total, 33554428 free Timestamp of repository gentoo: Thu, 20 Aug 2020 17:30:01 +0000 Head commit of repository gentoo: 5e4f0bd76cd9ae79be203ba0b607e06e60255d72 sh bash 5.0_p18 ld GNU ld (Gentoo 2.34 p6) 2.34.0 ccache version 3.7.11 [disabled] app-shells/bash: 5.0_p18::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.30.3-r1::gentoo dev-lang/python: 2.7.18-r100::lto-overlay, 3.7.8-r2::lto-overlay dev-util/ccache: 3.7.11::gentoo dev-util/cmake: 3.17.3::gentoo sys-apps/baselayout: 2.7::gentoo sys-apps/openrc: 0.41.2::gentoo sys-apps/sandbox: 2.20::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r5::gentoo sys-devel/automake: 1.16.2::gentoo sys-devel/binutils: 2.32-r1::gentoo, 2.33.1-r1::gentoo, 2.34-r2::gentoo sys-devel/gcc: 9.2.0-r4::gentoo, 9.3.0::gentoo, 10.2.0::gentoo sys-devel/gcc-config: 2.3.1::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 5.8::gentoo (virtual/os-headers) sys-libs/glibc: 2.32::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-verify-jobs: 1 sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 sync-rsync-verify-metamanifest: yes 4nykey location: /var/lib/layman/4nykey masters: gentoo priority: 50 booboo location: /var/lib/layman/booboo masters: gentoo priority: 50 d3-gentoo location: /var/lib/layman/d3-gentoo masters: gentoo priority: 50 dotnet location: /var/lib/layman/dotnet masters: gentoo priority: 50 flavour location: /var/lib/layman/flavour masters: gentoo priority: 50 gentoo-zh location: /var/lib/layman/gentoo-zh masters: gentoo priority: 50 imaging location: /var/lib/layman/imaging masters: gentoo priority: 50 lto-overlay location: /var/lib/layman/lto-overlay masters: gentoo mv priority: 50 mv location: /var/lib/layman/mv masters: gentoo priority: 50 raiagent location: /var/lib/layman/raiagent masters: gentoo priority: 50 salfter location: /var/lib/layman/salfter masters: gentoo priority: 50 FireBurn location: /var/lib/layman/FireBurn masters: gentoo priority: 60 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=znver1 -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=7 -fuse-linker-plugin -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.6/conf" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -march=znver1 -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=7 -fuse-linker-plugin -pipe" DISTDIR="/var/cache/distfiles" ENV_UNSET="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 -march=znver1 -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=7 -fuse-linker-plugin -pipe" 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 pid-sandbox 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 -march=znver1 -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=7 -fuse-linker-plugin -pipe" GENTOO_MIRRORS="http://mirror.leaseweb.com/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j7" 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="X acl adwaita-icon-theme alsa amd64 autohint berkdb bluetooth brotli bzip2 cairo caps clang cli codec2 corefonts cpudetection crypt curl dav1d dbus designer dri dri3 egl exif ffmpeg fftw fontconfig fortran gdbm geos gimp gles2 glslang gold graphite gtk gtk3 hackrf harfbuzz heif http2 iconv icu infinality ipv6 jack jpeg jpeg2k jumbo-build lapack libglvnd libnotify libsamplerate libtirpc lm-sensors lto lz4 lzma minizip ncurses nptl ogg opencl opencv openexr opengl openmp optimization opus orc pam pcre pdf pgo png policykit qml qt5 readline rtlsdr rubberband seccomp sndfile speex split-usr sqlite srt ssl startup-notification strong-optimization svg synaptics system-jsoncpp system-libvpx systemd sysv-utils tcpd theora tiff truetype udev unicode upower vaapi vdpau vim-syntax vorbis vpx vulkan webp webstart woff2 x264 x265 xattr xinerama zeromq zlib zstd" ABI_X86="64" ADA_TARGET="gnat_2018" 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="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt sha sse sse2 sse3 sse4_1 sse4_2 sse4a 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" L10N="en nl" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="AMDGPU BPF" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2 php7-3" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python2_7 python3_7" RUBY_TARGETS="ruby27" USERLAND="GNU" VIDEO_CARDS="amdgpu radeonsi radeon" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
this is very fresh, zstd just got merged and it comes from it. kernel is compiled with -mno-sse and error suggests there's function returning a double or a float or an SSE data type, which kernel does not support. Can you post your build log? It may be useful if you attach it upstream in the github issue as well. also, try without crazy flags or custom-cflags. kernel modules should be built with flags matching the kernel.
Created attachment 655864 [details] Build log I have had the LTO stuff explicitly disabled as well, which did not cause issues before for zfs-kmod.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=976dd88af1c35afbd35d0285aef61f7fc8376f6d commit 976dd88af1c35afbd35d0285aef61f7fc8376f6d Author: Georgy Yakovlev <gyakovlev@gentoo.org> AuthorDate: 2020-08-26 23:12:24 +0000 Commit: Georgy Yakovlev <gyakovlev@gentoo.org> CommitDate: 2020-08-26 23:34:44 +0000 sys-fs/zfs-kmod: apply znver build failure workaround Bug: https://bugs.gentoo.org/738270 Package-Manager: Portage-3.0.4, Repoman-3.0.1 Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org> sys-fs/zfs-kmod/files/2.0.0_rc1-U__BMI__.patch | 29 ++++++++++++++++++++++++++ sys-fs/zfs-kmod/zfs-kmod-2.0.0_rc1.ebuild | 2 ++ 2 files changed, 31 insertions(+)
upstream merged the PR, local rc versions are patched. closing.
