- Linux-kselftest-mirror - lists.linaro.org

[PATCH v4 0/3] Implement IOCTL to get and/or the clear info about PTEs

by Muhammad Usama Anjum

Hello, This patch series implements IOCTL on the pagemap procfs file to get the information about the page table entries (PTEs). The following operations are supported in this ioctl: - Get the information if the pages are soft-dirty, file mapped, present or swapped. - Clear the soft-dirty PTE bit of the pages. - Get and clear the soft-dirty PTE bit of the pages atomically. Soft-dirty PTE bit of the memory pages can be read by using the pagemap procfs file. The soft-dirty PTE bit for the whole memory range of the process can be cleared by writing to the clear_refs file. There are other methods to mimic this information entirely in userspace with poor performance: - The mprotect syscall and SIGSEGV handler for bookkeeping - The userfaultfd syscall with the handler for bookkeeping Some benchmarks can be seen here[1]. This series adds features that weren't present earlier: - There is no atomic get soft-dirty PTE bit status and clear operation possible. - The soft-dirty PTE bit of only a part of memory cannot be cleared. Historically, soft-dirty PTE bit tracking has been used in the CRIU project. The procfs interface is enough for finding the soft-dirty bit status and clearing the soft-dirty bit of all the pages of a process. We have the use case where we need to track the soft-dirty PTE bit for only specific pages on demand. We need this tracking and clear mechanism of a region of memory while the process is running to emulate the getWriteWatch() syscall of Windows. This syscall is used by games to keep track of dirty pages to process only the dirty pages. The information related to pages if the page is file mapped, present and swapped is required for the CRIU project[2][3]. The addition of the required mask, any mask, excluded mask and return masks are also required for the CRIU project[2]. The IOCTL returns the addresses of the pages which match the specific masks. The page addresses are returned in struct page_region in a compact form. The max_pages is needed to support a use case where user only wants to get a specific number of pages. So there is no need to find all the pages of interest in the range when max_pages is specified. The IOCTL returns when the maximum number of the pages are found. The max_pages is optional. If max_pages is specified, it must be equal or greater than the vec_size. This restriction is needed to handle worse case when one page_region only contains info of one page and it cannot be compacted. This is needed to emulate the Windows getWriteWatch() syscall. Some non-dirty pages get marked as dirty because of the kernel's internal activity (such as VMA merging as soft-dirty bit difference isn't considered while deciding to merge VMAs). The dirty bit of the pages is stored in the VMA flags and in the per page flags. If any of these two bits are set, the page is considered to be soft dirty. Suppose you have cleared the soft dirty bit of half of VMA which will be done by splitting the VMA and clearing soft dirty bit flag in the half VMA and the pages in it. Now kernel may decide to merge the VMAs again. So the half VMA becomes dirty again. This splitting/merging costs performance. The application receives a lot of pages which aren't dirty in reality but marked as dirty. Performance is lost again here. Also sometimes user doesn't want the newly allocated memory to be marked as dirty. PAGEMAP_NO_REUSED_REGIONS flag solves both the problems. It is used to not depend on the soft dirty flag in the VMA flags. So VMA splitting and merging doesn't happen. It only depends on the soft dirty bit of the individual pages. Thus by using this flag, there may be a scenerio such that the new memory regions which are just created, doesn't look dirty when seen with the IOCTL, but look dirty when seen from procfs. This seems okay as the user of this flag know the implication of using it. [1] https://lore.kernel.org/lkml/54d4c322-cd6e-eefd-b161-2af2b56aae24@collabora… [2] https://lore.kernel.org/all/YyiDg79flhWoMDZB@gmail.com/ [3] https://lore.kernel.org/all/20221014134802.1361436-1-mdanylo@google.com/ Regards, Muhammad Usama Anjum Muhammad Usama Anjum (3): fs/proc/task_mmu: update functions to clear the soft-dirty PTE bit fs/proc/task_mmu: Implement IOCTL to get and/or the clear info about PTEs selftests: vm: add pagemap ioctl tests fs/proc/task_mmu.c | 400 +++++++++++- include/uapi/linux/fs.h | 53 ++ tools/include/uapi/linux/fs.h | 53 ++ tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 5 +- tools/testing/selftests/vm/pagemap_ioctl.c | 681 +++++++++++++++++++++ 6 files changed, 1160 insertions(+), 33 deletions(-) create mode 100644 tools/testing/selftests/vm/pagemap_ioctl.c -- 2.30.2

2 years, 8 months

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[PATCH -next] selftests/vm: add local_config.h and local_config.mk to .gitignore

by Zhao Gongyi

Add local_config.h and local_config.mk to .gitignore to avoid accidentally checking it in. Signed-off-by: Zhao Gongyi <zhaogongyi(a)huawei.com> --- tools/testing/selftests/vm/.gitignore | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/vm/.gitignore b/tools/testing/selftests/vm/.gitignore index 8a536c731e3c..9fdee5f06304 100644 --- a/tools/testing/selftests/vm/.gitignore +++ b/tools/testing/selftests/vm/.gitignore @@ -34,3 +34,5 @@ memfd_secret soft-dirty split_huge_page_test ksm_tests +local_config.h +local_config.mk -- 2.17.1

2 years, 8 months

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[PATCH v16 0/3] Add TDX Guest Attestation support

by Kuppuswamy Sathyanarayanan

Hi All, Intel's Trust Domain Extensions (TDX) protect guest VMs from malicious hosts and some physical attacks. VM guest with TDX support is called as a TDX Guest. In TDX guest, attestation process is used to verify the TDX guest trustworthiness to other entities before provisioning secrets to the guest. For example, a key server may request for attestation before releasing the encryption keys to mount the encrypted rootfs or secondary drive. This patch set adds attestation support for the TDX guest. Details about the TDX attestation process and the steps involved are explained in Documentation/x86/tdx.rst (added by patch 2/3). Following are the details of the patch set: Patch 1/3 -> Preparatory patch for adding attestation support. Patch 2/3 -> Adds user interface driver to support attestation. Patch 3/3 -> Adds selftest support for TDREPORT feature. Commit log history is maintained in the individual patches. Current overall status of this series is, it has no pending issues and can be considered for the upcoming merge cycle. Kuppuswamy Sathyanarayanan (3): x86/tdx: Add a wrapper to get TDREPORT from the TDX Module virt: Add TDX guest driver selftests: tdx: Test TDX attestation GetReport support Documentation/virt/coco/tdx-guest.rst | 42 +++++ Documentation/virt/index.rst | 1 + Documentation/x86/tdx.rst | 43 +++++ arch/x86/coco/tdx/tdx.c | 31 ++++ arch/x86/include/asm/tdx.h | 2 + drivers/virt/Kconfig | 2 + drivers/virt/Makefile | 1 + drivers/virt/coco/tdx-guest/Kconfig | 10 ++ drivers/virt/coco/tdx-guest/Makefile | 2 + drivers/virt/coco/tdx-guest/tdx-guest.c | 121 +++++++++++++ include/uapi/linux/tdx-guest.h | 55 ++++++ tools/testing/selftests/Makefile | 1 + tools/testing/selftests/tdx/Makefile | 7 + tools/testing/selftests/tdx/config | 1 + tools/testing/selftests/tdx/tdx_guest_test.c | 175 +++++++++++++++++++ 15 files changed, 494 insertions(+) create mode 100644 Documentation/virt/coco/tdx-guest.rst create mode 100644 drivers/virt/coco/tdx-guest/Kconfig create mode 100644 drivers/virt/coco/tdx-guest/Makefile create mode 100644 drivers/virt/coco/tdx-guest/tdx-guest.c create mode 100644 include/uapi/linux/tdx-guest.h create mode 100644 tools/testing/selftests/tdx/Makefile create mode 100644 tools/testing/selftests/tdx/config create mode 100644 tools/testing/selftests/tdx/tdx_guest_test.c -- 2.34.1

2 years, 8 months

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[PATCH v2 0/5] mm/memfd: MFD_NOEXEC for memfd_create

by jeffxu＠google.com

From: Jeff Xu <jeffxu(a)chromium.org> Hi, This v2 series MFD_NOEXEC, this series includes: 1> address comments in V1 2> add sysctl (vm.mfd_noexec) to change the default file permissions of memfd_create to be non-executable. Below are cover-level for v1: The default file permissions on a memfd include execute bits, which means that such a memfd can be filled with a executable and passed to the exec() family of functions. This is undesirable on systems where all code is verified and all filesystems are intended to be mounted noexec, since an attacker may be able to use a memfd to load unverified code and execute it. Additionally, execution via memfd is a common way to avoid scrutiny for malicious code, since it allows execution of a program without a file ever appearing on disk. This attack vector is not totally mitigated with this new flag, since the default memfd file permissions must remain executable to avoid breaking existing legitimate uses, but it should be possible to use other security mechanisms to prevent memfd_create calls without MFD_NOEXEC on systems where it is known that executable memfds are not necessary. This patch series adds a new MFD_NOEXEC flag for memfd_create(), which allows creation of non-executable memfds, and as part of the implementation of this new flag, it also adds a new F_SEAL_EXEC seal, which will prevent modification of any of the execute bits of a sealed memfd. I am not sure if this is the best way to implement the desired behavior (for example, the F_SEAL_EXEC seal is really more of an implementation detail and feels a bit clunky to expose), so suggestions are welcome for alternate approaches. v1: https://lwn.net/Articles/890096/ Daniel Verkamp (4): mm/memfd: add F_SEAL_EXEC mm/memfd: add MFD_NOEXEC flag to memfd_create selftests/memfd: add tests for F_SEAL_EXEC selftests/memfd: add tests for MFD_NOEXEC Jeff Xu (1): sysctl: add support for mfd_noexec include/linux/mm.h | 4 + include/uapi/linux/fcntl.h | 1 + include/uapi/linux/memfd.h | 1 + kernel/sysctl.c | 9 ++ mm/memfd.c | 39 ++++- mm/shmem.c | 6 + tools/testing/selftests/memfd/memfd_test.c | 163 ++++++++++++++++++++- 7 files changed, 221 insertions(+), 2 deletions(-) base-commit: 9e2f40233670c70c25e0681cb66d50d1e2742829 -- 2.37.1.559.g78731f0fdb-goog

2 years, 8 months

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kselftest/fixes kselftest-seccomp: 5 runs, 4 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67)

by kernelci.org bot

kselftest/fixes kselftest-seccomp: 5 runs, 4 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-seccomp Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 89c1017aac67ca81973b7c8eac5d021315811a93 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626ea90720ac3502e7db79 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: clang-15 (Debian clang version 15.0.4-++20221026063345+db68723804fd-1~exp1~20221026063423.87) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-seccomp.login: https://kernelci.org/test/case/id/63626ea90720ac3502e7db7a failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626adedb2e30d21ae7db55 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-seccomp.login: https://kernelci.org/test/case/id/63626adedb2e30d21ae7db56 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626e9e0720ac3502e7db70 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: clang-15 (Debian clang version 15.0.4-++20221026063345+db68723804fd-1~exp1~20221026063423.87) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-seccomp.login: https://kernelci.org/test/case/id/63626e9e0720ac3502e7db71 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626af211e7c17733e7db6d Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-seccomp.login: https://kernelci.org/test/case/id/63626af211e7c17733e7db6e failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 8 months

1
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kselftest/fixes kselftest-lkdtm: 5 runs, 5 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67)

by kernelci.org bot

kselftest/fixes kselftest-lkdtm: 5 runs, 5 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-lkdtm Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 89c1017aac67ca81973b7c8eac5d021315811a93 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/636269807a76994c7ae7db5b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/636269807a76994c7ae7db5c failing since 15 days (last pass: v6.0-rc1, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626ea50720ac3502e7db76 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: clang-15 (Debian clang version 15.0.4-++20221026063345+db68723804fd-1~exp1~20221026063423.87) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/63626ea50720ac3502e7db77 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626ae456070808dfe7db55 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/63626ae456070808dfe7db56 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626e9d0720ac3502e7db6a Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: clang-15 (Debian clang version 15.0.4-++20221026063345+db68723804fd-1~exp1~20221026063423.87) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/63626e9d0720ac3502e7db6b failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626aec56070808dfe7db6b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/63626aec56070808dfe7db6c failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 8 months

1
0
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kselftest/fixes kselftest-livepatch: 3 runs, 2 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67)

by kernelci.org bot

kselftest/fixes kselftest-livepatch: 3 runs, 2 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-livepatch Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 89c1017aac67ca81973b7c8eac5d021315811a93 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626ea00720ac3502e7db73 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: clang-15 (Debian clang version 15.0.4-++20221026063345+db68723804fd-1~exp1~20221026063423.87) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-livepatch.login: https://kernelci.org/test/case/id/63626ea00720ac3502e7db74 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626af011e7c17733e7db67 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-livepatch.login: https://kernelci.org/test/case/id/63626af011e7c17733e7db68 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 8 months

1
0
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kselftest/fixes kselftest-lib: 3 runs, 2 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67)

by kernelci.org bot

kselftest/fixes kselftest-lib: 3 runs, 2 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-lib Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 89c1017aac67ca81973b7c8eac5d021315811a93 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626e9e0720ac3502e7db6d Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: clang-15 (Debian clang version 15.0.4-++20221026063345+db68723804fd-1~exp1~20221026063423.87) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-lib.login: https://kernelci.org/test/case/id/63626e9e0720ac3502e7db6e failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626aec11e7c17733e7db5f Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-lib.login: https://kernelci.org/test/case/id/63626aec11e7c17733e7db60 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 8 months

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kselftest/fixes kselftest-cpufreq: 2 runs, 2 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67)

by kernelci.org bot

kselftest/fixes kselftest-cpufreq: 2 runs, 2 regressions (linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-cpufreq Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 89c1017aac67ca81973b7c8eac5d021315811a93 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | clang-15 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626e980720ac3502e7db67 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: clang-15 (Debian clang version 15.0.4-++20221026063345+db68723804fd-1~exp1~20221026063423.87) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/63626e980720ac3502e7db68 failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63626aeb11e7c17733e7db5b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.1-rc3… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2022102… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/63626aeb11e7c17733e7db5c failing since 14 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 8 months

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arm32: kselftest: zram: Unable to handle kernel NULL pointer dereference at virtual address 00000144

by Naresh Kamboju

While running kselftest zram test case on x15 device and qemu-arm on stable-rc 6.0.7-rc1 the following kernel crash noticed the image was built with gcc-10. This is not regression because it has been happening on mainline and next. Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> # selftests: zram: zram.sh # -------------------- # running zram tests # -------------------- # create '1' zram device(s) [ 677.430297] zram: Added device: zram0 # all zram devices (/dev/zram0~0) successfully created # set max_comp_streams to zram device(s) # The device attribute max_comp_streams was[ 677.485321] zram0: detected capacity change from 0 to 4096 deprecated in 4.7 # test that we can set compression algorithm # supported algs: lzo [lzo-rle] lz4 lz4hc 842 zstd # /sys/block/zram0/comp_algorithm = 'lzo' # zram set compression algorithm: OK # set disk size to zram device(s) # /sys/block/zram0/disksize = '2097152' # zram set disksizes: OK # set memory limit to zram device(s) # /sys/block/zram0/mem_limit = '2M' # zram set memory limit: OK # make ext4 filesystem on /dev/zram0 [ 677.550018] 8<--- cut here --- [ 677.553100] Unable to handle kernel NULL pointer dereference at virtual address 00000144 [ 677.561218] [00000144] *pgd=fb0e8835 [ 677.564819] Internal error: Oops: 17 [#1] SMP ARM [ 677.569549] Modules linked in: zram zsmalloc cfg80211 bluetooth snd_soc_simple_card snd_soc_simple_card_utils etnaviv gpu_sched onboard_usb_hub snd_soc_davinci_mcasp snd_soc_ti_udma snd_soc_ti_edma snd_soc_ti_sdma snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore display_connector fuse [last unloaded: test_user_copy] [ 677.599761] CPU: 1 PID: 2249 Comm: mkfs.ext4 Not tainted 6.0.7-rc1 #1 [ 677.606231] Hardware name: Generic DRA74X (Flattened Device Tree) [ 677.612365] PC is at strcmp+0x4/0x34 [ 677.615966] LR is at register_lock_class+0x420/0x990 [ 677.620971] pc : [<c09ae910>] lr : [<c03d288c>] psr: a0070093 [ 677.627258] sp : f120da60 ip : 00000001 fp : c2240768 [ 677.632507] r10: 00000000 r9 : eeb10334 r8 : c33cedc0 [ 677.637756] r7 : eeb22334 r6 : c2b242e8 r5 : 00000144 r4 : c2976cd8 [ 677.644317] r3 : 00000028 r2 : c2240c1c r1 : 00000144 r0 : c1cfa56d [ 677.650878] Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none [ 677.658142] Control: 10c5387d Table: 89b9c06a DAC: 00000051 [ 677.663909] Register r0 information: non-slab/vmalloc memory [ 677.669586] Register r1 information: non-paged memory [ 677.674682] Register r2 information: non-slab/vmalloc memory [ 677.680358] Register r3 information: non-paged memory [ 677.685455] Register r4 information: non-slab/vmalloc memory [ 677.691131] Register r5 information: non-paged memory [ 677.696197] Register r6 information: non-slab/vmalloc memory [ 677.701904] Register r7 information: non-slab/vmalloc memory [ 677.707580] Register r8 information: slab task_struct start c33ced80 data offset 64 pointer offset 0 allocated at copy_process+0x1a4/0x1950 [ 677.720184] kmem_cache_alloc+0x328/0x43c [ 677.724487] copy_process+0x1a4/0x1950 [ 677.728515] kernel_clone+0x5c/0x418 [ 677.732360] sys_clone+0x74/0x90 [ 677.735870] ret_fast_syscall+0x0/0x1c [ 677.739898] Free path: [ 677.742370] rcu_core+0x3c8/0x1140 [ 677.746063] __do_softirq+0x130/0x538 [ 677.749999] Register r9 information: non-slab/vmalloc memory [ 677.755676] Register r10 information: NULL pointer [ 677.760498] Register r11 information: non-slab/vmalloc memory [ 677.766265] Register r12 information: non-paged memory [ 677.771453] Process mkfs.ext4 (pid: 2249, stack limit = 0xf120c000) [ 677.777740] Stack: (0xf120da60 to 0xf120e000) ... [ 678.151947] strcmp from register_lock_class+0x420/0x990 [ 678.157287] register_lock_class from __lock_acquire+0x68/0x2a98 [ 678.163330] __lock_acquire from lock_acquire+0x110/0x364 [ 678.168762] lock_acquire from zs_map_object+0x114/0x338 [zsmalloc] [ 678.175079] zs_map_object [zsmalloc] from zram_bvec_rw+0x284/0xb1c [zram] [ 678.182006] zram_bvec_rw [zram] from zram_submit_bio+0x1a0/0x3fc [zram] [ 678.188751] zram_submit_bio [zram] from __submit_bio+0x50/0x80 [ 678.194702] __submit_bio from submit_bio_noacct_nocheck+0xb8/0x218 [ 678.201019] submit_bio_noacct_nocheck from submit_bh_wbc+0x150/0x180 [ 678.207489] submit_bh_wbc from __block_write_full_page+0x504/0x6ac [ 678.213806] __block_write_full_page from block_write_full_page+0x148/0x18c [ 678.220794] block_write_full_page from __writepage+0x1c/0x74 [ 678.226562] __writepage from write_cache_pages+0x1b4/0x4f4 [ 678.232177] write_cache_pages from generic_writepages+0x58/0x84 [ 678.238220] generic_writepages from do_writepages+0x7c/0x1b8 [ 678.243988] do_writepages from filemap_fdatawrite_wbc+0x6c/0x8c [ 678.250030] filemap_fdatawrite_wbc from file_write_and_wait_range+0x90/0xec [ 678.257141] file_write_and_wait_range from blkdev_fsync+0x20/0x44 [ 678.263336] blkdev_fsync from do_fsync+0x44/0x78 [ 678.268066] do_fsync from ret_fast_syscall+0x0/0x1c [ 678.273071] Exception stack(0xf120dfa8 to 0xf120dff0) [ 678.278137] dfa0: 00038960 b6f615a0 00000005 00042a00 00001000 00000000 [ 678.286376] dfc0: 00038960 b6f615a0 00000000 00000076 bebd8818 00000000 bebd8800 bebd8808 [ 678.294586] dfe0: 00000076 bebd87b8 b6db8def b6d31ae6 [ 678.299652] Code: e3520000 1afffffb e12fff1e e4d03001 (e4d12001) [ 678.305786] ---[ end trace 0000000000000000 ]--- [ 678.310424] note: mkfs.ext4[2249] exited with preempt_count 3 [ 678.316192] ------------[ cut here ]------------ [ 678.320831] WARNING: CPU: 1 PID: 2249 at kernel/exit.c:741 do_exit+0x8a8/0xae0 [ 678.328094] Modules linked in: zram zsmalloc cfg80211 bluetooth snd_soc_simple_card snd_soc_simple_card_utils etnaviv gpu_sched onboard_usb_hub snd_soc_davinci_mcasp snd_soc_ti_udma snd_soc_ti_edma snd_soc_ti_sdma snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore display_connector fuse [last unloaded: test_user_copy] [ 678.358306] CPU: 1 PID: 2249 Comm: mkfs.ext4 Tainted: G D 6.0.7-rc1 #1 [ 678.366271] Hardware name: Generic DRA74X (Flattened Device Tree) [ 678.372406] unwind_backtrace from show_stack+0x18/0x1c [ 678.377655] show_stack from dump_stack_lvl+0x58/0x70 [ 678.382720] dump_stack_lvl from __warn+0xd0/0x1f0 [ 678.387542] __warn from warn_slowpath_fmt+0x64/0xbc [ 678.392547] warn_slowpath_fmt from do_exit+0x8a8/0xae0 [ 678.397796] do_exit from make_task_dead+0x64/0x104 [ 678.402709] make_task_dead from die+0x4c4/0x4e4 [ 678.407348] die from die_kernel_fault+0x6c/0x7c [ 678.412017] die_kernel_fault from do_translation_fault+0x0/0xbc [ 678.418060] irq event stamp: 10325 [ 678.421478] hardirqs last enabled at (10325): [<c0572914>] inc_zone_page_state+0x5c/0x64 [ 678.429687] hardirqs last disabled at (10324): [<c0572904>] inc_zone_page_state+0x4c/0x64 [ 678.437927] softirqs last enabled at (8038): [<c0301fe0>] __do_softirq+0x300/0x538 [ 678.445617] softirqs last disabled at (8029): [<c0359ca4>] __irq_exit_rcu+0x14c/0x170 [ 678.453491] ---[ end trace 0000000000000000 ]--- Broadcast message from systemd-journald@am57xx-evm (Thu 2022-04-28 17:53:32 UTC): kernel[302]: [ 677.564819] Internal error: Oops: 17 [#1] SMP ARM metadata: git_ref: linux-6.0.y git_repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc git_sha: 436175d0f780af8302164b3102ecf0ff99f7a376 git_describe: v6.0.6-241-g436175d0f780 kernel_version: 6.0.7-rc1 kernel-config: https://builds.tuxbuild.com/2GyMeKKxOr8QQQbN95Ngll7cpZ8/config build-url: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc/-/pipelines/6… artifact-location: https://builds.tuxbuild.com/2GyMeKKxOr8QQQbN95Ngll7cpZ8 toolchain: gcc-10 [1] https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.0.y/build/v6.0.6… [2] https://lkft.validation.linaro.org/scheduler/job/5799922#L4146 [3] https://lkft.validation.linaro.org/scheduler/job/5780009#L1853 -- Linaro LKFT https://lkft.linaro.org

2 years, 8 months

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