On Mon, Jun 30, 2025 at 4:22 PM <noroad4work@gmail.com> wrote:
I'm trying to build Ceph. I'm encountering a build error on an Ubuntu environment using WSL and wondering if it's related to the kernel version or WSL itself. Can anyone know about this?
=== Env : WSL2 + Ubuntu 20.04 === - Kernel Version : 5.15.153.1-microsoft-standard-WSL2
=== Execution === $> git clone and pull submodules $> ./install-deps.sh $> ./do_cmake.sh $> ninja -j1
=== Error Logs === [1/1714] Building CXX object src/common/CMakeFiles/common-common-objs.dir/Graylog.cc.o FAILED: src/common/CMakeFiles/common-common-objs.dir/Graylog.cc.o /usr/bin/g++-11 -DBOOST_ASIO_DISABLE_THREAD_KEYWORD_EXTENSION -DBOOST_ASIO_HAS_IO_URING -DBOOST_ASIO_NO_TS_EXECUTORS -DCEPH_INSTALL_DATADIR=\"/usr/local/share/ceph\" -DCEPH_INSTALL_FULL_PKGLIBDIR=\"/usr/local/lib/ceph\" -DCMAKE_INSTALL_LIBDIR=\"lib\" -DHAVE_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -D_REENTRANT -D_THREAD_SAFE -D__CEPH__ -D__STDC_FORMAT_MACROS -D__linux__ -I/ceph/build/src/include -I/ceph/src -isystem /ceph/build/boost/include -isystem /ceph/build/include -isystem /ceph/src/jaegertracing/opentelemetry-cpp/api/include -isystem /ceph/src/jaegertracing/opentelemetry-cpp/exporters/jaeger/include -isystem /ceph/src/jaegertracing/opentelemetry-cpp/ext/include -isystem /ceph/src/jaegertracing/opentelemetry-cpp/sdk/include -isystem /ceph/src/xxHash -isystem /ceph/src/fmt/include -Og -g -fPIC -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free -Wall -fno-strict-aliasing -fsigned-char -Wtype-limits -Wignored-qualifiers -Wpointer-arith -Werror=form at-security -Winit-self -Wno-unknown-pragmas -Wnon-virtual-dtor -Wno-ignored-qualifiers -ftemplate-depth-1024 -Wpessimizing-move -Wredundant-move -Wstrict-null-sentinel -Woverloaded-virtual -DCEPH_DEBUG_MUTEX -fstack-protector-strong -D_GLIBCXX_ASSERTIONS -fdiagnostics-color=auto -std=c++20 -MD -MT src/common/CMakeFiles/common-common-objs.dir/Graylog.cc.o -MF src/common/CMakeFiles/common-common-objs.dir/Graylog.cc.o.d -o src/common/CMakeFiles/common-common-objs.dir/Graylog.cc.o -c /ceph/src/common/Graylog.cc In file included from /ceph/build/boost/include/boost/asio/io_context.hpp:18, from //ceph/src/common/Graylog.h:7, from /ceph/src/common/Graylog.cc:4:
/ceph/build/boost/include/boost/asio/detail/config.hpp:826:5: error: #error Linux kernel 5.10 or later is required to support io_uring 826 | # error Linux kernel 5.10 or later is required to support io_uring | ^~~~~ ninja: build stopped: subcommand failed.
Try disabling io_uring stuff by passing -DWITH_LIBURING=OFF to do_cmake.sh. No one is building Ceph in WSL to the best of my knowledge though, so you might hit other issues. Thanks, Ilya