Hi Tianrui, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c2f1662c3fb301fe7ba127fe06c14538112982d4 commit: 07db411edd838080fb7c42b9f56bc08dd60d9af6 [1693/1693] LoongArch: KVM: Enable kvm config and add the makefile config: loongarch-randconfig-r112-20250103 (https://download.01.org/0day-ci/archive/20250103/202501031054.kEd1r4Aw-lkp@i...) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250103/202501031054.kEd1r4Aw-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202501031054.kEd1r4Aw-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) arch/loongarch/kvm/../../../virt/kvm/kvm_main.c: note: in included file: include/linux/kvm_host.h:1946:54: sparse: sparse: array of flexible structures include/linux/kvm_host.h:1948:56: sparse: sparse: array of flexible structures

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arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5340:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got unsigned int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: expected void *ptr arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:5350:9: sparse: got int [noderef] __percpu * arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:602:9: sparse: sparse: context imbalance in 'kvm_mmu_notifier_change_pte' - different lock contexts for basic block arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:602:9: sparse: sparse: context imbalance in 'kvm_mmu_notifier_invalidate_range_start' - different lock contexts for basic block arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:602:9: sparse: sparse: context imbalance in 'kvm_mmu_notifier_invalidate_range_end' - different lock contexts for basic block arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:602:9: sparse: sparse: context imbalance in 'kvm_mmu_notifier_clear_flush_young' - different lock contexts for basic block arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:602:9: sparse: sparse: context imbalance in 'kvm_mmu_notifier_clear_young' - different lock contexts for basic block arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:602:9: sparse: sparse: context imbalance in 'kvm_mmu_notifier_test_young' - different lock contexts for basic block arch/loongarch/kvm/../../../virt/kvm/kvm_main.c: note: in included file (through include/linux/mutex.h, include/linux/kvm_types.h, include/kvm/iodev.h): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:1973:49: sparse: sparse: self-comparison always evaluates to false arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:1979:37: sparse: sparse: self-comparison always evaluates to false arch/loongarch/kvm/../../../virt/kvm/kvm_main.c:2678:9: sparse: sparse: context imbalance in 'hva_to_pfn_remapped' - unexpected unlock include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true

vim +5340 arch/loongarch/kvm/../../../virt/kvm/kvm_main.c 9a2b85c620b977 drivers/kvm/kvm_main.c Rusty Russell 2007-07-17 5328 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5329 static int kvm_suspend(void) 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5330 { 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5331 /* 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5332 * Secondary CPUs and CPU hotplug are disabled across the suspend/resume 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5333 * callbacks, i.e. no need to acquire kvm_lock to ensure the usage count 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5334 * is stable. Assert that kvm_lock is not held to ensure the system 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5335 * isn't suspended while KVM is enabling hardware. Hardware enabling 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5336 * can be preempted, but the task cannot be frozen until it has dropped 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5337 * all locks (userspace tasks are frozen via a fake signal). 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5338 */ 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5339 lockdep_assert_not_held(&kvm_lock); 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 @5340 lockdep_assert_irqs_disabled(); 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5341 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5342 if (kvm_usage_count) 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5343 hardware_disable_nolock(NULL); 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5344 return 0; 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5345 } 35774a9f94db08 virt/kvm/kvm_main.c Sean Christopherson 2022-11-30 5346 :::::: The code at line 5340 was first introduced by commit :::::: 35774a9f94db08df78e1c08d2b097666deec4e76 KVM: Register syscore (suspend/resume) ops early in kvm_init() :::::: TO: Sean Christopherson <seanjc@google.com> :::::: CC: Paolo Bonzini <pbonzini@redhat.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki