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[openeuler:openEuler-1.0-LTS] BUILD REGRESSION 5dc47e9223ca57c9b89808e91ec8e1cb1ee6692a
by kernel test robot 30 May '25

30 May '25

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: 5dc47e9223ca57c9b89808e91ec8e1cb1ee6692a !16519 mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put() Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202505070314.0zdCBK7T-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202505160438.vuslIGAx-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202505180330.wT5fsdK9-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202505201642.9kWf73yF-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202505201731.rOzzhiIH-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202505201910.3QGTFYPj-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202505202028.GvFwJHdW-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202505202138.LT7VPPBg-lkp@intel.com arch/x86/kernel/fpu/core.c:175:14: warning: mixing declarations and code is a C99 extension [-Wdeclaration-after-statement] drivers/gpu/drm/ttm/.tmp_ttm_page_alloc.o: warning: objtool: missing symbol for section .text.unlikely drivers/gpu/drm/ttm/.tmp_ttm_page_alloc_dma.o: warning: objtool: missing symbol for section .text.unlikely include/linux/filter.h:787:10: warning: cast between incompatible function types from 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} to 'u64 (*)(u64, u64, u64, u64, u64, const struct bpf_insn *)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, const struct bpf_insn *)'} [-Wcast-function-type] include/linux/list.h:65:19: warning: storing the address of local variable 'tmp' in '((struct list_head *)lip)[5].prev' [-Wdangling-pointer=] include/trace/trace_events.h:26:23: warning: 'str__fs__trace_system_name' defined but not used [-Wunused-const-variable=] kernel/locking/.tmp_lockdep.o: warning: objtool: missing symbol for section .text kismet: WARNING: unmet direct dependencies detected for CRYPTO_MICHAEL_MIC when selected by RTLLIB_CRYPTO_TKIP kismet: WARNING: unmet direct dependencies detected for FB_BACKLIGHT when selected by DRM_NOUVEAU kismet: WARNING: unmet direct dependencies detected for IIO_BUFFER_CB when selected by TOUCHSCREEN_ADC kismet: WARNING: unmet direct dependencies detected for PINCTRL_EXYNOS when selected by ARCH_EXYNOS kismet: WARNING: unmet direct dependencies detected for UACCE when selected by CRYPTO_DEV_HISI_QM mm/.tmp_page_counter.o: warning: objtool: missing symbol for section .text mm/.tmp_sparse.o: warning: objtool: missing symbol for section .init.text mm/huge_memory.c:2092:15: warning: variable 'orig_pud' set but not used [-Wunused-but-set-variable] mm/huge_memory.c:2092:8: warning: variable 'orig_pud' set but not used [-Wunused-but-set-variable] mm/hugetlb.c:1432:6: warning: no previous prototype for 'free_huge_page_to_dhugetlb_pool' [-Wmissing-prototypes] mm/khugepaged.c:1387: warning: Function parameter or member 'hpage' not described in 'collapse_shmem' mm/khugepaged.c:1387: warning: Function parameter or member 'mapping' not described in 'collapse_shmem' mm/khugepaged.c:1387: warning: Function parameter or member 'mm' not described in 'collapse_shmem' mm/khugepaged.c:1387: warning: Function parameter or member 'node' not described in 'collapse_shmem' mm/khugepaged.c:1387: warning: Function parameter or member 'reliable' not described in 'collapse_shmem' mm/khugepaged.c:1387: warning: Function parameter or member 'start' not described in 'collapse_shmem' mm/maccess.c:85:6: warning: no previous prototype for '__probe_user_read' [-Wmissing-prototypes] mm/memcontrol.c:5002:6: warning: no previous prototype for 'dhugetlb_pool_is_free' [-Wmissing-prototypes] mm/memcontrol.c:6730: warning: bad line: | 0, otherwise. mm/memory_hotplug.c:481:16: warning: variable 'start_pfn' set but not used [-Wunused-but-set-variable] mm/memory_hotplug.c:481:23: warning: variable 'start_pfn' set but not used [-Wunused-but-set-variable] mm/rmap.c:916:17: warning: variable 'cstart' set but not used [-Wunused-but-set-variable] mm/rmap.c:916:31: warning: variable 'cstart' set but not used [-Wunused-but-set-variable] mm/slab_common.c:1452:37: warning: 'proc_slabinfo_operations' defined but not used [-Wunused-const-variable=] Unverified Error/Warning (likely false positive, kindly check if interested): mm/hugetlb.c: linux/share_pool.h is included more than once. Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- include-asm-generic-bitops-non-atomic.h:warning:array-subscript-long-unsigned-int-is-partly-outside-array-bounds-of-u32-aka-unsigned-int | |-- include-linux-thread_info.h:warning:b-may-be-used-uninitialized | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | `-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used |-- arm64-allnoconfig | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_AES-when-selected-by-RTLLIB_CRYPTO_CCMP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_ARC4-when-selected-by-RTLLIB_CRYPTO_TKIP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_ARC4-when-selected-by-RTLLIB_CRYPTO_WEP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_MICHAEL_MIC-when-selected-by-RTLLIB_CRYPTO_TKIP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-FB_BACKLIGHT-when-selected-by-DRM_NOUVEAU | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-IIO_BUFFER_CB-when-selected-by-TOUCHSCREEN_ADC | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PINCTRL_EXYNOS-when-selected-by-ARCH_EXYNOS | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-UACCE-when-selected-by-CRYPTO_DEV_HISI_QM | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- arm64-defconfig | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | `-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free |-- arm64-randconfig-004-20250529 | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-tmp-in-((struct-list_head-)lip)-.prev | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free | `-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used |-- x86_64-allmodconfig | `-- arch-x86-kernel-fpu-core.c:warning:mixing-declarations-and-code-is-a-C99-extension |-- x86_64-allnoconfig | |-- mm-hugetlb.c:linux-share_pool.h-is-included-more-than-once. | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-allyesconfig | |-- arch-x86-kernel-fpu-core.c:warning:mixing-declarations-and-code-is-a-C99-extension | |-- mm-huge_memory.c:warning:variable-orig_pud-set-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-buildonly-randconfig-001-20250529 | |-- drivers-gpu-drm-ttm-.tmp_ttm_page_alloc.o:warning:objtool:missing-symbol-for-section-.text.unlikely | |-- drivers-gpu-drm-ttm-.tmp_ttm_page_alloc_dma.o:warning:objtool:missing-symbol-for-section-.text.unlikely | |-- kernel-locking-.tmp_lockdep.o:warning:objtool:missing-symbol-for-section-.text | |-- mm-.tmp_page_counter.o:warning:objtool:missing-symbol-for-section-.text | |-- mm-.tmp_sparse.o:warning:objtool:missing-symbol-for-section-.init.text | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free | |-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-slab_common.c:warning:proc_slabinfo_operations-defined-but-not-used |-- x86_64-buildonly-randconfig-002-20250529 | |-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace | |-- mm-huge_memory.c:warning:variable-orig_pud-set-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-003-20250529 | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-huge_memory.c:warning:variable-orig_pud-set-but-not-used | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | `-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free |-- x86_64-buildonly-randconfig-004-20250529 | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-005-20250529 | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-huge_memory.c:warning:variable-orig_pud-set-but-not-used | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free | `-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used |-- x86_64-buildonly-randconfig-006-20250529 | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-defconfig | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-randconfig-161-20250530 | |-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace | |-- mm-huge_memory.c:warning:variable-orig_pud-set-but-not-used | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used `-- x86_64-rhel-9.4-rust |-- mm-huge_memory.c:warning:variable-orig_pud-set-but-not-used |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool |-- mm-khugepaged.c:warning:Function-parameter-or-member-hpage-not-described-in-collapse_shmem |-- mm-khugepaged.c:warning:Function-parameter-or-member-mapping-not-described-in-collapse_shmem |-- mm-khugepaged.c:warning:Function-parameter-or-member-mm-not-described-in-collapse_shmem |-- mm-khugepaged.c:warning:Function-parameter-or-member-node-not-described-in-collapse_shmem |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem |-- mm-khugepaged.c:warning:Function-parameter-or-member-start-not-described-in-collapse_shmem |-- mm-memcontrol.c:warning:bad-line:otherwise. |-- mm-memory_hotplug.c:warning:variable-start_pfn-set-but-not-used `-- mm-rmap.c:warning:variable-cstart-set-but-not-used elapsed time: 731m configs tested: 17 configs skipped: 128 tested configs: arm64 allmodconfig gcc-15.1.0 arm64 allnoconfig gcc-15.1.0 arm64 defconfig gcc-15.1.0 arm64 randconfig-001-20250529 gcc-5.5.0 arm64 randconfig-002-20250529 gcc-5.5.0 arm64 randconfig-003-20250529 gcc-5.5.0 arm64 randconfig-004-20250529 gcc-13.3.0 x86_64 allnoconfig clang-20 x86_64 allyesconfig clang-20 x86_64 buildonly-randconfig-001-20250529 gcc-12 x86_64 buildonly-randconfig-002-20250529 clang-20 x86_64 buildonly-randconfig-003-20250529 gcc-12 x86_64 buildonly-randconfig-004-20250529 clang-20 x86_64 buildonly-randconfig-005-20250529 gcc-12 x86_64 buildonly-randconfig-006-20250529 clang-20 x86_64 defconfig gcc-11 x86_64 rhel-9.4-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] sched: fair: Use rq_clock_task to account rq->idle_avg
by Zhang Qiao 29 May '25

29 May '25

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/ICB7K1 -------------------------------- A cpu with high irq, will trigger ksoftirqd and newidle balance frequently. Under this case, loadbalance is performed with irq disabled, it increase interrupt latency affects network packet transmission. Signed-off-by: Zhang Qiao <zhangqiao22(a)huawei.com> --- kernel/sched/core.c | 7 ++++++- kernel/sched/fair.c | 5 ++++- kernel/sched/features.h | 1 + 3 files changed, 11 insertions(+), 2 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 4b6188abe01f..7819088ae359 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3815,7 +3815,12 @@ ttwu_do_activate(struct rq *rq, struct task_struct *p, int wake_flags, } if (rq->idle_stamp) { - u64 delta = rq_clock(rq) - rq->idle_stamp; + u64 delta; + + if (sched_feat(IRQ_AVG)) + delta = rq_clock_task(rq) - rq->idle_stamp; + else + delta = rq_clock(rq) - rq->idle_stamp; u64 max = 2*rq->max_idle_balance_cost; update_avg(&rq->avg_idle, delta); diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d3f8e6ce7e6b..292cff7f6296 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5219,7 +5219,10 @@ static inline void update_misfit_status(struct task_struct *p, struct rq *rq) static inline void rq_idle_stamp_update(struct rq *rq) { - rq->idle_stamp = rq_clock(rq); + if (sched_feat(IRQ_AVG)) + rq->idle_stamp = rq_clock_task(rq); + else + rq->idle_stamp = rq_clock(rq); } static inline void rq_idle_stamp_clear(struct rq *rq) diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 02577ddf10bd..ea7ba74810e3 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -98,6 +98,7 @@ SCHED_FEAT(UTIL_EST_FASTUP, true) SCHED_FEAT(LATENCY_WARN, false) SCHED_FEAT(HZ_BW, true) +SCHED_FEAT(IRQ_AVG, false) #ifdef CONFIG_QOS_SCHED_DYNAMIC_AFFINITY /* -- 2.18.0.huawei.25

2 1

[PATCH OLK-5.10 0/2] CVE-2022-49647
by Chen Ridong 29 May '25

29 May '25

CVE-2022-49647 Chen Ridong (1): cgroup: fix kabi for css_set Tejun Heo (1): cgroup: Use separate src/dst nodes when preloading css_sets for migration include/linux/cgroup-defs.h | 5 +++++ kernel/cgroup/cgroup.c | 25 +++++++++++++++++-------- 2 files changed, 22 insertions(+), 8 deletions(-) -- 2.34.1

2 3

[PATCH] perf: Fix hang while freeing sigtrap event
by Luo Gengkun 29 May '25

29 May '25

From: Frederic Weisbecker <frederic(a)kernel.org> mainline inclusion from mainline-v6.15-rc2 commit 56799bc035658738f362acec3e7647bb84e68933 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC5BL4 CVE: CVE-2025-37747 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- Perf can hang while freeing a sigtrap event if a related deferred signal hadn't managed to be sent before the file got closed: perf_event_overflow() task_work_add(perf_pending_task) fput() task_work_add(____fput()) task_work_run() ____fput() perf_release() perf_event_release_kernel() _free_event() perf_pending_task_sync() task_work_cancel() -> FAILED rcuwait_wait_event() Once task_work_run() is running, the list of pending callbacks is removed from the task_struct and from this point on task_work_cancel() can't remove any pending and not yet started work items, hence the task_work_cancel() failure and the hang on rcuwait_wait_event(). Task work could be changed to remove one work at a time, so a work running on the current task can always cancel a pending one, however the wait / wake design is still subject to inverted dependencies when remote targets are involved, as pictured by Oleg: T1 T2 fd = perf_event_open(pid => T2->pid); fd = perf_event_open(pid => T1->pid); close(fd) close(fd) <IRQ> <IRQ> perf_event_overflow() perf_event_overflow() task_work_add(perf_pending_task) task_work_add(perf_pending_task) </IRQ> </IRQ> fput() fput() task_work_add(____fput()) task_work_add(____fput()) task_work_run() task_work_run() ____fput() ____fput() perf_release() perf_release() perf_event_release_kernel() perf_event_release_kernel() _free_event() _free_event() perf_pending_task_sync() perf_pending_task_sync() rcuwait_wait_event() rcuwait_wait_event() Therefore the only option left is to acquire the event reference count upon queueing the perf task work and release it from the task work, just like it was done before 3a5465418f5f ("perf: Fix event leak upon exec and file release") but without the leaks it fixed. Some adjustments are necessary to make it work: * A child event might dereference its parent upon freeing. Care must be taken to release the parent last. * Some places assuming the event doesn't have any reference held and therefore can be freed right away must instead put the reference and let the reference counting to its job. Reported-by: "Yi Lai" <yi1.lai(a)linux.intel.com> Closes: https://lore.kernel.org/all/Zx9Losv4YcJowaP%2F@ly-workstation/ Reported-by: syzbot+3c4321e10eea460eb606(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/673adf75.050a0220.87769.0024.GAE@google.com/ Fixes: 3a5465418f5f ("perf: Fix event leak upon exec and file release") Signed-off-by: Frederic Weisbecker <frederic(a)kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Link: https://lkml.kernel.org/r/20250304135446.18905-1-frederic@kernel.org Conflicts: kernel/events/core.c include/linux/perf_event.h [To apply this mainline patch, first revert the 008ebcfec23d ("[Huawei] perf: Fix kabi broken of struct perf_event"). Then pick mainline patch 16b9569df9d2 ("perf: Don't disable preemption in perf_pending_task()."). Finally, pick this fix patch and resolve conflicts and merged all patch together.] Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- include/linux/perf_event.h | 2 +- kernel/events/core.c | 65 +++++++++++--------------------------- 2 files changed, 19 insertions(+), 48 deletions(-) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 420f15ddce39..826fb16906fe 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -851,7 +851,7 @@ struct perf_event { */ __u32 orig_type; - KABI_USE(1, struct rcuwait pending_work_wait) + KABI_RESERVE(1) KABI_RESERVE(2) KABI_RESERVE(3) KABI_RESERVE(4) diff --git a/kernel/events/core.c b/kernel/events/core.c index 69cdf8aabf52..f042d6101932 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -2294,6 +2294,7 @@ event_sched_out(struct perf_event *event, struct perf_event_context *ctx) !event->pending_work && !task_work_add(current, &event->pending_task, TWA_RESUME)) { event->pending_work = 1; + WARN_ON_ONCE(!atomic_long_inc_not_zero(&event->refcount)); } else { local_dec(&event->ctx->nr_pending); } @@ -5187,35 +5188,9 @@ static bool exclusive_event_installable(struct perf_event *event, static void perf_addr_filters_splice(struct perf_event *event, struct list_head *head); -static void perf_pending_task_sync(struct perf_event *event) -{ - struct callback_head *head = &event->pending_task; - - if (!event->pending_work) - return; - /* - * If the task is queued to the current task's queue, we - * obviously can't wait for it to complete. Simply cancel it. - */ - if (task_work_cancel(current, head)) { - event->pending_work = 0; - local_dec(&event->ctx->nr_pending); - return; - } - - /* - * All accesses related to the event are within the same - * non-preemptible section in perf_pending_task(). The RCU - * grace period before the event is freed will make sure all - * those accesses are complete by then. - */ - rcuwait_wait_event(&event->pending_work_wait, !event->pending_work, TASK_UNINTERRUPTIBLE); -} - static void _free_event(struct perf_event *event) { irq_work_sync(&event->pending_irq); - perf_pending_task_sync(event); unaccount_event(event); @@ -5340,10 +5315,17 @@ static void perf_remove_from_owner(struct perf_event *event) static void put_event(struct perf_event *event) { + struct perf_event *parent; + if (!atomic_long_dec_and_test(&event->refcount)) return; + parent = event->parent; _free_event(event); + + /* Matches the refcount bump in inherit_event() */ + if (parent) + put_event(parent); } /* @@ -5427,11 +5409,6 @@ int perf_event_release_kernel(struct perf_event *event) if (tmp == child) { perf_remove_from_context(child, DETACH_GROUP); list_move(&child->child_list, &free_list); - /* - * This matches the refcount bump in inherit_event(); - * this can't be the last reference. - */ - put_event(event); } else { var = &ctx->refcount; } @@ -5457,7 +5434,8 @@ int perf_event_release_kernel(struct perf_event *event) void *var = &child->ctx->refcount; list_del(&child->child_list); - free_event(child); + /* Last reference unless ->pending_task work is pending */ + put_event(child); /* * Wake any perf_event_free_task() waiting for this event to be @@ -5468,7 +5446,11 @@ int perf_event_release_kernel(struct perf_event *event) } no_ctx: - put_event(event); /* Must be the 'last' reference */ + /* + * Last reference unless ->pending_task work is pending on this event + * or any of its children. + */ + put_event(event); return 0; } EXPORT_SYMBOL_GPL(perf_event_release_kernel); @@ -6857,12 +6839,6 @@ static void perf_pending_task(struct callback_head *head) struct perf_event *event = container_of(head, struct perf_event, pending_task); int rctx; - /* - * All accesses to the event must belong to the same implicit RCU read-side - * critical section as the ->pending_work reset. See comment in - * perf_pending_task_sync(). - */ - preempt_disable_notrace(); /* * If we 'fail' here, that's OK, it means recursion is already disabled * and we won't recurse 'further'. @@ -6873,12 +6849,11 @@ static void perf_pending_task(struct callback_head *head) event->pending_work = 0; perf_sigtrap(event); local_dec(&event->ctx->nr_pending); - rcuwait_wake_up(&event->pending_work_wait); } + put_event(event); if (rctx >= 0) perf_swevent_put_recursion_context(rctx); - preempt_enable_notrace(); } #ifdef CONFIG_GUEST_PERF_EVENTS @@ -11990,7 +11965,6 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu, init_waitqueue_head(&event->waitq); init_irq_work(&event->pending_irq, perf_pending_irq); init_task_work(&event->pending_task, perf_pending_task); - rcuwait_init(&event->pending_work_wait); mutex_init(&event->mmap_mutex); raw_spin_lock_init(&event->addr_filters.lock); @@ -13143,8 +13117,7 @@ perf_event_exit_event(struct perf_event *event, struct perf_event_context *ctx) * Kick perf_poll() for is_event_hup(); */ perf_event_wakeup(parent_event); - free_event(event); - put_event(parent_event); + put_event(event); return; } @@ -13262,13 +13235,11 @@ static void perf_free_event(struct perf_event *event, list_del_init(&event->child_list); mutex_unlock(&parent->child_mutex); - put_event(parent); - raw_spin_lock_irq(&ctx->lock); perf_group_detach(event); list_del_event(event, ctx); raw_spin_unlock_irq(&ctx->lock); - free_event(event); + put_event(event); } /* -- 2.34.1

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[PATCH openEuler-1.0-LTS] memcg: always call cond_resched() after fn()
by Chen Ridong 29 May '25

29 May '25

From: Breno Leitao <leitao(a)debian.org> mainline inclusion from mainline-v6.15-rc1 commit 06717a7b6c86514dbd6ab322e8083ffaa4db5712 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBE42N Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- I am seeing soft lockup on certain machine types when a cgroup OOMs. This is happening because killing the process in certain machine might be very slow, which causes the soft lockup and RCU stalls. This happens usually when the cgroup has MANY processes and memory.oom.group is set. Example I am seeing in real production: [462012.244552] Memory cgroup out of memory: Killed process 3370438 (crosvm) .... .... [462037.318059] Memory cgroup out of memory: Killed process 4171372 (adb) .... [462037.348314] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [stat_manager-ag:1618982] .... Quick look at why this is so slow, it seems to be related to serial flush for certain machine types. For all the crashes I saw, the target CPU was at console_flush_all(). In the case above, there are thousands of processes in the cgroup, and it is soft locking up before it reaches the 1024 limit in the code (which would call the cond_resched()). So, cond_resched() in 1024 blocks is not sufficient. Remove the counter-based conditional rescheduling logic and call cond_resched() unconditionally after each task iteration, after fn() is called. This avoids the lockup independently of how slow fn() is. Link: https://lkml.kernel.org/r/20250523-memcg_fix-v1-1-ad3eafb60477@debian.org Fixes: ade81479c7dd ("memcg: fix soft lockup in the OOM process") Signed-off-by: Breno Leitao <leitao(a)debian.org> Suggested-by: Rik van Riel <riel(a)surriel.com> Acked-by: Shakeel Butt <shakeel.butt(a)linux.dev> Cc: Michael van der Westhuizen <rmikey(a)meta.com> Cc: Usama Arif <usamaarif642(a)gmail.com> Cc: Pavel Begunkov <asml.silence(a)gmail.com> Cc: Chen Ridong <chenridong(a)huawei.com> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Conflicts: mm/memcontrol.c [context is mispatched] Signed-off-by: Chen Ridong <chenridong(a)huawei.com> --- mm/memcontrol.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a35b94cacada..b9d083303cf6 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1230,7 +1230,6 @@ int mem_cgroup_scan_tasks(struct mem_cgroup *memcg, { struct mem_cgroup *iter; int ret = 0; - int i = 0; BUG_ON(memcg == root_mem_cgroup); @@ -1240,10 +1239,9 @@ int mem_cgroup_scan_tasks(struct mem_cgroup *memcg, css_task_iter_start(&iter->css, CSS_TASK_ITER_PROCS, &it); while (!ret && (task = css_task_iter_next(&it))) { - /* Avoid potential softlockup warning */ - if ((++i & 1023) == 0) - cond_resched(); ret = fn(task, arg); + /* Avoid potential softlockup warning */ + cond_resched(); } css_task_iter_end(&it); if (ret) { -- 2.34.1

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[PATCH OLK-5.10] memcg: always call cond_resched() after fn()
by Chen Ridong 29 May '25

29 May '25

From: Breno Leitao <leitao(a)debian.org> mainline inclusion from mainline-v6.15-rc1 commit 06717a7b6c86514dbd6ab322e8083ffaa4db5712 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBE42N Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- I am seeing soft lockup on certain machine types when a cgroup OOMs. This is happening because killing the process in certain machine might be very slow, which causes the soft lockup and RCU stalls. This happens usually when the cgroup has MANY processes and memory.oom.group is set. Example I am seeing in real production: [462012.244552] Memory cgroup out of memory: Killed process 3370438 (crosvm) .... .... [462037.318059] Memory cgroup out of memory: Killed process 4171372 (adb) .... [462037.348314] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [stat_manager-ag:1618982] .... Quick look at why this is so slow, it seems to be related to serial flush for certain machine types. For all the crashes I saw, the target CPU was at console_flush_all(). In the case above, there are thousands of processes in the cgroup, and it is soft locking up before it reaches the 1024 limit in the code (which would call the cond_resched()). So, cond_resched() in 1024 blocks is not sufficient. Remove the counter-based conditional rescheduling logic and call cond_resched() unconditionally after each task iteration, after fn() is called. This avoids the lockup independently of how slow fn() is. Link: https://lkml.kernel.org/r/20250523-memcg_fix-v1-1-ad3eafb60477@debian.org Fixes: ade81479c7dd ("memcg: fix soft lockup in the OOM process") Signed-off-by: Breno Leitao <leitao(a)debian.org> Suggested-by: Rik van Riel <riel(a)surriel.com> Acked-by: Shakeel Butt <shakeel.butt(a)linux.dev> Cc: Michael van der Westhuizen <rmikey(a)meta.com> Cc: Usama Arif <usamaarif642(a)gmail.com> Cc: Pavel Begunkov <asml.silence(a)gmail.com> Cc: Chen Ridong <chenridong(a)huawei.com> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Conflicts: mm/memcontrol.c [context is mispatched] Signed-off-by: Chen Ridong <chenridong(a)huawei.com> --- mm/memcontrol.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index d9467b38e2f7..fc7f211bcdc7 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1202,7 +1202,6 @@ int mem_cgroup_scan_tasks(struct mem_cgroup *memcg, { struct mem_cgroup *iter; int ret = 0; - int i = 0; BUG_ON(memcg == root_mem_cgroup); @@ -1212,10 +1211,9 @@ int mem_cgroup_scan_tasks(struct mem_cgroup *memcg, css_task_iter_start(&iter->css, CSS_TASK_ITER_PROCS, &it); while (!ret && (task = css_task_iter_next(&it))) { - /* Avoid potential softlockup warning */ - if ((++i & 1023) == 0) - cond_resched(); ret = fn(task, arg); + /* Avoid potential softlockup warning */ + cond_resched(); } css_task_iter_end(&it); if (ret) { -- 2.34.1

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[PATCH OLK-6.6] memcg: always call cond_resched() after fn()
by Chen Ridong 29 May '25

29 May '25

From: Breno Leitao <leitao(a)debian.org> mainline inclusion from mainline-v6.15-rc1 commit 06717a7b6c86514dbd6ab322e8083ffaa4db5712 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBE42N Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- I am seeing soft lockup on certain machine types when a cgroup OOMs. This is happening because killing the process in certain machine might be very slow, which causes the soft lockup and RCU stalls. This happens usually when the cgroup has MANY processes and memory.oom.group is set. Example I am seeing in real production: [462012.244552] Memory cgroup out of memory: Killed process 3370438 (crosvm) .... .... [462037.318059] Memory cgroup out of memory: Killed process 4171372 (adb) .... [462037.348314] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [stat_manager-ag:1618982] .... Quick look at why this is so slow, it seems to be related to serial flush for certain machine types. For all the crashes I saw, the target CPU was at console_flush_all(). In the case above, there are thousands of processes in the cgroup, and it is soft locking up before it reaches the 1024 limit in the code (which would call the cond_resched()). So, cond_resched() in 1024 blocks is not sufficient. Remove the counter-based conditional rescheduling logic and call cond_resched() unconditionally after each task iteration, after fn() is called. This avoids the lockup independently of how slow fn() is. Link: https://lkml.kernel.org/r/20250523-memcg_fix-v1-1-ad3eafb60477@debian.org Fixes: ade81479c7dd ("memcg: fix soft lockup in the OOM process") Signed-off-by: Breno Leitao <leitao(a)debian.org> Suggested-by: Rik van Riel <riel(a)surriel.com> Acked-by: Shakeel Butt <shakeel.butt(a)linux.dev> Cc: Michael van der Westhuizen <rmikey(a)meta.com> Cc: Usama Arif <usamaarif642(a)gmail.com> Cc: Pavel Begunkov <asml.silence(a)gmail.com> Cc: Chen Ridong <chenridong(a)huawei.com> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Chen Ridong <chenridong(a)huawei.com> --- mm/memcontrol.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 00b04c0ce172c..b3609b71cbe8f 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1322,7 +1322,6 @@ void mem_cgroup_scan_tasks(struct mem_cgroup *memcg, { struct mem_cgroup *iter; int ret = 0; - int i = 0; BUG_ON(mem_cgroup_is_root(memcg)); @@ -1332,10 +1331,9 @@ void mem_cgroup_scan_tasks(struct mem_cgroup *memcg, css_task_iter_start(&iter->css, CSS_TASK_ITER_PROCS, &it); while (!ret && (task = css_task_iter_next(&it))) { - /* Avoid potential softlockup warning */ - if ((++i & 1023) == 0) - cond_resched(); ret = fn(task, arg); + /* Avoid potential softlockup warning */ + cond_resched(); } css_task_iter_end(&it); if (ret) { -- 2.34.1

2 1

[PATCH OLK-5.10 0/2] CVE-2022-49647
by Chen Ridong 29 May '25

29 May '25

CVE-2022-49647 Chen Ridong (1): cgroup: fix kabi for css_set Tejun Heo (1): cgroup: Use separate src/dst nodes when preloading css_sets for migration include/linux/cgroup-defs.h | 5 +++++ kernel/cgroup/cgroup.c | 25 +++++++++++++++++-------- 2 files changed, 22 insertions(+), 8 deletions(-) -- 2.34.1

2 3

[PATCH OLK-5.10 0/2] CVE-2024-58100 5.10
by Chen Zhongjin 29 May '25

29 May '25

*** BLURB HERE *** Eduard Zingerman (2): bpf: check changes_pkt_data property for extension programs bpf: fix null dereference when computing changes_pkt_data of prog w/o subprogs include/linux/bpf.h | 1 + kernel/bpf/verifier.c | 19 +++++++++++++++---- 2 files changed, 16 insertions(+), 4 deletions(-) -- 2.25.1

2 3

[openeuler:OLK-6.6 2331/2331] drivers/crypto/ccp/hygon/psp-dev.c:35:6: sparse: sparse: symbol 'psp_in_nowait_mode' was not declared. Should it be static?
by kernel test robot 29 May '25

29 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: fb62fea0a81a08823f133facca690b2f666a49ef commit: 3907486bfebfabd1b4cfcfd94fdb04d617e68db8 [2331/2331] crypto: ccp: support psp generic ringbuffer config: x86_64-randconfig-121-20250529 (https://download.01.org/0day-ci/archive/20250529/202505292025.Uqstjrf4-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250529/202505292025.Uqstjrf4-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505292025.Uqstjrf4-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/crypto/ccp/hygon/psp-dev.c:35:6: sparse: sparse: symbol 'psp_in_nowait_mode' was not declared. Should it be static? drivers/crypto/ccp/hygon/psp-dev.c:47:10: sparse: sparse: symbol 'atomic64_exchange' was not declared. Should it be static? drivers/crypto/ccp/hygon/psp-dev.c:52:5: sparse: sparse: symbol 'psp_mutex_init' was not declared. Should it be static? vim +/psp_in_nowait_mode +35 drivers/crypto/ccp/hygon/psp-dev.c 34 > 35 bool psp_in_nowait_mode; 36 static struct psp_misc_dev *psp_misc; 37 #define HYGON_PSP_IOC_TYPE 'H' 38 enum HYGON_PSP_OPCODE { 39 HYGON_PSP_MUTEX_ENABLE = 1, 40 HYGON_PSP_MUTEX_DISABLE, 41 HYGON_VPSP_CTRL_OPT, 42 HYGON_PSP_OP_PIN_USER_PAGE, 43 HYGON_PSP_OP_UNPIN_USER_PAGE, 44 HYGON_PSP_OPCODE_MAX_NR, 45 }; 46 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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