[PATCH 0/1] fallocate missing fd_offset

https://lore.kernel.org/qemu-devel/20250121175956.3030149-1-william.roche@oracle.com

---

From: =?UTF-8?q?=E2=80=9CWilliam=20Roche?= <william.roche@oracle.com>
To: david@redhat.com, qemu-devel@nongnu.org, peterx@redhat.com,
 pbonzini@redhat.com, philmd@linaro.org
Cc: william.roche@oracle.com
Subject: [PATCH 0/1] fallocate missing fd_offset
Date: Tue, 21 Jan 2025 17:59:55 +0000
Message-ID: <20250121175956.3030149-1-william.roche@oracle.com>
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From: William Roche <william.roche@oracle.com>

Working on the poisoned memory recovery mechanisms with David
Hildenbrand, it appeared that the file hole punching done with
the memory discard functions are missing the file offset value
fd_offset to correctly modify the right file location.

I'm not sure that guest_memfd would use a non zero fd_offset, but I'm
also modifying the ram_block_discard_guest_memfd_range() function to
include this fallocate use case too.

The fix is checkpatch.pl clean
make check runs fine on both ARM and x86

William Roche (1):
  system/physmem: take into account fd_offset for file fallocate

 system/physmem.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

--
2.43.5

Signed-off-by: GitHub Actions Bot <bot@github.com>

.github/workflows/build.yml

@@ -0,0 +1,345 @@
+on: push
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  checkapply:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      # to debug container live from GitHub
+      # - uses: mxschmitt/action-tmate@v3
+      - run: bash -c '[ ! -f shazam.log ] || { cat shazam.log; exit 1; }'
+
+  checkpatch-ignore-signoff:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: git fetch -a origin --unshallow || true
+      - run: git remote add upstream -f https://gitlab.com/qemu-project/qemu
+      - run: ./scripts/checkpatch.pl --no-signoff $(git merge-base upstream/master HEAD)..HEAD
+
+  checkpatch-with-signoff:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: git fetch -a origin --unshallow || true
+      - run: git remote add upstream -f https://gitlab.com/qemu-project/qemu
+      - run: ./scripts/checkpatch.pl $(git merge-base upstream/master HEAD)..HEAD
+
+  # use docker-run to not rebuild images
+  # images are built daily and pushed on pbolinaro/qemu-ci:*
+  build-cross:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        container: [alpine,centos9,debian,debian-all-test-cross,debian-amd64-cross,debian-arm64-cross,debian-armhf-cross,debian-hexagon-cross,debian-i686-cross,debian-legacy-test-cross,debian-loongarch-cross,debian-mips64el-cross,debian-mipsel-cross,debian-ppc64el-cross,debian-riscv64-cross,debian-s390x-cross,debian-tricore-cross,fedora,fedora-rust-nightly,opensuse-leap,ubuntu2204]
+    steps:
+      - uses: actions/checkout@v4
+      - run: pip install meson
+      - run: make docker-run J=$(nproc) RUNC=podman TEST=test-build IMAGE=docker.io/pbolinaro/qemu-ci:${{matrix.container}}
+
+  build:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure && ninja -C build install'
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          ./build/qemu-system-x86_64 -nographic -plugin ./build/contrib/plugins/libstoptrigger,icount=1000000 -plugin ./build/tests/tcg/plugins/libinsn -d plugin
+
+  build-cross-mingw64:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:fedora-win64-cross
+          bash -cx './configure $QEMU_CONFIGURE_OPTS && ninja -C build install'
+
+  build-windows:
+    needs: checkapply
+    runs-on: windows-2025
+    strategy:
+      fail-fast: false
+      matrix:
+        sys: [UCRT64, CLANG64, MINGW64]
+    defaults:
+      run:
+        shell: msys2 {0}
+    steps:
+      - uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          msystem: ${{matrix.sys}}
+      - run: pacman -S --noconfirm curl git
+      - uses: actions/checkout@v4
+      - run: >
+            pacman -S --noconfirm
+            base-devel binutils bison diffutils flex git grep make sed
+            ${MINGW_PACKAGE_PREFIX}-toolchain
+            ${MINGW_PACKAGE_PREFIX}-glib2
+            ${MINGW_PACKAGE_PREFIX}-gtk3
+            ${MINGW_PACKAGE_PREFIX}-libnfs
+            ${MINGW_PACKAGE_PREFIX}-libssh
+            ${MINGW_PACKAGE_PREFIX}-ninja
+            ${MINGW_PACKAGE_PREFIX}-pixman
+            ${MINGW_PACKAGE_PREFIX}-pkgconf
+            ${MINGW_PACKAGE_PREFIX}-python
+            ${MINGW_PACKAGE_PREFIX}-SDL2
+            ${MINGW_PACKAGE_PREFIX}-zstd
+      - run: ./configure && ninja -C build
+      - run: ./build/qemu-system-x86_64 -nographic -plugin ./build/contrib/plugins/libstoptrigger,icount=1000000 -plugin ./build/tests/tcg/plugins/libinsn -d plugin
+
+  build-macos-x86_64:
+    needs: checkapply
+    runs-on: macos-13
+    steps:
+      - uses: actions/checkout@v4
+      - run: brew install --quiet $(brew deps --include-build qemu) || true
+      # on macos, werror is not on by default
+      - run: ./configure --enable-werror && ninja -C build
+      - run: ./build/qemu-system-x86_64 -nographic -plugin ./build/contrib/plugins/libstoptrigger,icount=1000000 -plugin ./build/tests/tcg/plugins/libinsn -d plugin
+
+  build-macos-aarch64:
+    needs: checkapply
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v4
+      - run: brew install --quiet $(brew deps --include-build qemu) || true
+      # on macos, werror is not on by default
+      - run: ./configure --enable-werror && ninja -C build
+      - run: ./build/qemu-system-x86_64 -nographic -plugin ./build/contrib/plugins/libstoptrigger,icount=1000000 -plugin ./build/tests/tcg/plugins/libinsn -d plugin
+
+  build-misc:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --disable-user --disable-system --enable-docs --enable-tools && ninja -C build install'
+
+  build-32bits:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-i686-cross
+          bash -cx './configure $QEMU_CONFIGURE_OPTS && ninja -C build install'
+
+  build-big-endian:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-s390x-cross
+          bash -cx './configure $QEMU_CONFIGURE_OPTS && ninja -C build install'
+
+  build-debug:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --enable-debug --enable-asan --enable-ubsan && ninja -C build install'
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          ./build/qemu-system-x86_64 -nographic -plugin ./build/contrib/plugins/libstoptrigger,icount=1000000 -plugin ./build/tests/tcg/plugins/libinsn -d plugin
+
+  build-static:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --disable-system --disable-tools --disable-guest-agent --disable-docs --static && ninja -C build install'
+
+  build-tsan:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --enable-tsan && ninja -C build install'
+
+  build-clang:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --cxx=clang++ --cc=clang --host-cc=clang && ninja -C build install'
+
+  build-clang-latest:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx 'LLVM_VERSION=19 && apt update && apt install -y lsb-release wget software-properties-common gnupg && wget https://apt.llvm.org/llvm.sh && bash llvm.sh ${LLVM_VERSION} && ./configure --cxx=clang++-${LLVM_VERSION} --cc=clang-${LLVM_VERSION} --host-cc=clang-${LLVM_VERSION} && ninja -C build install'
+
+  build-rust:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --enable-rust && ninja -C build install'
+
+  build-disable-tcg:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --disable-tcg && ninja -C build install'
+
+  build-disable-kvm:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --disable-kvm && ninja -C build install'
+
+  build-disable-tcg-kvm-for-xen:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --disable-tcg --disable-kvm && ninja -C build install'
+
+  build-minimal:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian
+          bash -cx './configure --without-default-features --without-default-devices --disable-kvm --disable-tcg && ninja -C build install'
+
+  check-tcg:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-all-test-cross
+          bash -cx './configure --disable-docs --enable-debug-tcg --enable-debug-graph-lock --enable-debug-mutex --enable-asan --enable-ubsan && ninja -C build'
+      - run: >
+          podman run --init --privileged --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-all-test-cross
+          bash -cx "env ASAN_OPTIONS=detect_leaks=0 make -k -j $(nproc) check-tcg"
+
+  # run all meson tests, except functional.
+  # block tests are not ran because they don't support sanitizers:
+  # https://gitlab.com/qemu-project/qemu/-/blob/master/tests/qemu-iotests/meson.build
+  check:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      # we use image with download cache filled. Solves servers flakiness.
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx './configure --disable-docs --enable-debug-tcg --enable-debug-graph-lock --enable-debug-mutex --enable-asan --enable-ubsan && ninja -C build'
+      - run: sudo chown $USER:$USER /dev/kvm
+      - run: >
+          podman run --init --privileged --rm -i -v /dev/kvm:/dev/kvm -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx "env ASAN_OPTIONS=detect_leaks=0 ./build/pyvenv/bin/meson test -C build --setup thorough --no-suite func-quick --no-suite func-thorough -t 5 --print-errorlogs"
+
+  check-functional:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      # we clean up runner first, to get more disk space
+      - run: docker system prune -af && sudo rm -rf /opt/*
+      - uses: actions/checkout@v4
+      # we use image with download cache filled. Solves servers flakiness.
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx './configure --disable-docs --enable-debug-tcg --enable-debug-graph-lock --enable-debug-mutex --enable-asan --enable-ubsan && ninja -C build'
+      - run: sudo chown $USER:$USER /dev/kvm
+      - run: >
+          podman run --init --privileged --rm -i -v /dev/kvm:/dev/kvm -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx "env ASAN_OPTIONS=detect_leaks=0 ./build/pyvenv/bin/meson test -C build --setup thorough --suite func-quick --suite func-thorough -j $(($(nproc) / 2)) -t 5 --print-errorlogs --wrapper $(pwd)/scripts/run-functional-test.sh --max-lines=0"
+          # Limit parallelism because it creates timeout.
+
+  # iotests do not support sanitizers, so we run them in their own job
+  check-block:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      # we use image with download cache filled. Solves servers flakiness.
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx './configure --disable-docs --enable-debug-tcg --enable-debug-graph-lock --enable-debug-mutex && ninja -C build'
+      - run: sudo chown $USER:$USER /dev/kvm
+      - run: >
+          podman run --init --privileged --rm -i -v /dev/kvm:/dev/kvm -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx "./build/pyvenv/bin/meson test -C build --setup thorough --suite block --suite block-slow --suite block-thorough -t 5 --print-errorlogs"
+
+  check-avocado:
+    needs: checkapply
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      # add more time for all tests
+      - run: sed -i -e 's/timeout = .*/timeout = 3600/' $(find tests/avocado/ -type f)
+      # we use image with download cache filled. Solves servers flakiness.
+      - run: >
+          podman run --init --rm -it -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx './configure --disable-docs --enable-debug-tcg --enable-debug-graph-lock --enable-debug-mutex --enable-asan --enable-ubsan && ninja -C build'
+      - run: sudo chown $USER:$USER /dev/kvm
+      - run: >
+          podman run --init --privileged --rm -it -v /dev/kvm:/dev/kvm -v $(pwd):$(pwd) -w $(pwd)
+          docker.io/pbolinaro/qemu-ci:debian-precache-tests
+          bash -cx "env ASAN_OPTIONS=detect_leaks=0 make -k check-avocado V=1"

.github/workflows/containers.yml

@@ -0,0 +1,41 @@
+on:
+  schedule:
+    - cron: '0 6 * * *'
+  workflow_dispatch:
+
+permissions: write-all
+
+jobs:
+  build_container:
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        # cd tests/docker/dockerfiles/
+        # ls *docker | sed -e 's/.docker//' | tr '\n' ','
+        # remove: debian-bootstrap,debian-toolchain
+        container: [alpine,centos9,debian-all-test-cross,debian-amd64-cross,debian-arm64-cross,debian-armhf-cross,debian,debian-hexagon-cross,debian-i686-cross,debian-legacy-test-cross,debian-loongarch-cross,debian-mips64el-cross,debian-mipsel-cross,debian-ppc64el-cross,debian-riscv64-cross,debian-s390x-cross,debian-tricore-cross,debian-xtensa-cross,fedora,fedora-rust-nightly,fedora-win64-cross,opensuse-leap,python,ubuntu2204]
+    steps:
+      - uses: actions/checkout@v4
+      - run: make docker-image-${{matrix.container}} RUNC=podman V=1
+      - run: podman tag qemu/${{matrix.container}} docker.io/pbolinaro/qemu-ci:${{matrix.container}}
+      - run: podman login -u pbolinaro -p ${{secrets.DOCKERHUB_PASSWORD}}
+      - run: podman push docker.io/pbolinaro/qemu-ci:${{matrix.container}}
+
+  build_container_debian-precache-tests:
+    runs-on: ubuntu-24.04
+    steps:
+      # we clean up runner first, to get more disk space
+      - run: docker system prune -af && sudo rm -rf /opt/*
+      - uses: actions/checkout@v4
+      - run: make docker-image-debian RUNC=podman V=1
+      # fill download cache for functional and check-avocado
+      # running check-avocado without any qemu binary will only download data
+      # in /root/avocado
+      - run: >
+          podman run -it -v $(pwd):$(pwd) -w $(pwd) qemu/debian
+          ./precache_tests.sh
+      # commit result as a new image. Cache will be in /root/.cache and /root/avocado
+      - run: podman commit "$(podman ps -aq)" docker.io/pbolinaro/qemu-ci:debian-precache-tests
+      - run: podman login -u pbolinaro -p ${{secrets.DOCKERHUB_PASSWORD}}
+      - run: podman push docker.io/pbolinaro/qemu-ci:debian-precache-tests