stable-rc/linux-4.9.y baseline: 97 runs, 16 regressions (v4.9.314-19-g42670125a2b8) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/job/stable-rc/branch/linux-4.9.y/kernel/v4.9.314-19-g42670125a2b8/plan/baseline/ Test: baseline Tree: stable-rc Branch: linux-4.9.y Describe: v4.9.314-19-g42670125a2b8 URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: 42670125a2b8b1c94c2a9c130791e2c869589def Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/62828437ed9d92e4f38f572e Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/62828437ed9d92e4f38f572f failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/628286cf63e5e92ff18f5718 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628286cf63e5e92ff18f5719 failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/628284c24c293d3b0a8f5722 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628284c24c293d3b0a8f5723 failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/628288fb700a4b5bad8f571e Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628288fb700a4b5bad8f571f failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6282844d5329c1ee128f571a Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/6282844d5329c1ee128f571b failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6282866da984c67d4f8f5732 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv2-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/6282866da984c67d4f8f5733 failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/628284d6caff0d58548f5719 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628284d6caff0d58548f571a failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/62828896351bd6772b8f5742 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv2-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/62828896351bd6772b8f5743 failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/62828410c154af8cdd8f572b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/62828410c154af8cdd8f572c failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6282867c93524e44738f574d Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/6282867c93524e44738f574e failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/628284afb756ff949b8f574b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628284afb756ff949b8f574c failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6282886eca8113c91e8f577f Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/6282886eca8113c91e8f5780 failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/628283e7a575a7d93f8f572e Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628283e7a575a7d93f8f572f failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/62828695d33f6f49a08f5722 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-baylibre/baseline-qemu_arm64-virt-gicv3-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/62828695d33f6f49a08f5723 failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/628284aeb756ff949b8f5747 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig+arm64-chromebook/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628284aeb756ff949b8f5748 failing since 6 days (last pass: v4.9.312-36-gbfd3fd9fa677, first fail: v4.9.312-60-g806e59090c6c) platform | arch | lab | compiler | defconfig | regressions ---------------------------+-------+--------------+----------+----------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/628288e727e0f350998f5768 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3-uefi.txt HTML log: https://storage.kernelci.org//stable-rc/linux-4.9.y/v4.9.314-19-g42670125a2b8/arm64/defconfig/gcc-10/lab-broonie/baseline-qemu_arm64-virt-gicv3-uefi.html Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/20220513.0/arm64/rootfs.cpio.gz * baseline.login: https://kernelci.org/test/case/id/628288e727e0f350998f5769 failing since 6 days (last pass: v4.9.312-44-g77a374c13dc5, first fail: v4.9.312-60-g806e59090c6c)