CC: [email protected] CC: [email protected] CC: Robert Hu <[email protected]> CC: Farrah Chen <[email protected]> CC: Danmei Wei <[email protected]> TO: Paolo Bonzini <[email protected]>
tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue head: a3e0b8bd99ab098514bde2434301fa6fde040da2 commit: 0ae283075bf669c2086ef92c0dc6ad8458bc5f13 [127/152] kvm: x86: abstract locking around pvclock_update_vm_gtod_copy :::::: branch date: 9 hours ago :::::: commit date: 10 hours ago config: x86_64-rhel-8.3-kselftests (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=0ae283075bf669c2086ef92c0dc6ad8458bc5f13 git remote add kvm https://git.kernel.org/pub/scm/virt/kvm/kvm.git git fetch --no-tags kvm queue git checkout 0ae283075bf669c2086ef92c0dc6ad8458bc5f13 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> sparse warnings: (new ones prefixed by >>) arch/x86/kvm/x86.c:227:47: sparse: sparse: array of flexible structures arch/x86/kvm/x86.c:253:49: sparse: sparse: array of flexible structures arch/x86/kvm/x86.c: note: in included file: include/linux/kvm_host.h:1445:54: sparse: sparse: array of flexible structures include/linux/kvm_host.h:1447:56: sparse: sparse: array of flexible structures >> arch/x86/kvm/x86.c:2760:13: sparse: sparse: context imbalance in >> 'kvm_start_pvclock_update' - wrong count at exit arch/x86/kvm/x86.c:2769:13: sparse: sparse: context imbalance in 'kvm_end_pvclock_update' - unexpected unlock arch/x86/kvm/x86.c: note: in included file (through include/linux/notifier.h, arch/x86/include/asm/uprobes.h, include/linux/uprobes.h, ...): include/linux/srcu.h:188:9: sparse: sparse: context imbalance in 'vcpu_enter_guest' - unexpected unlock vim +/kvm_start_pvclock_update +2760 arch/x86/kvm/x86.c d828199e844477 Marcelo Tosatti 2012-11-27 2759 0ae283075bf669 Paolo Bonzini 2021-04-08 @2760 static void kvm_start_pvclock_update(struct kvm *kvm) 2860c4b1678646 Paolo Bonzini 2016-01-07 2761 { 0ae283075bf669 Paolo Bonzini 2021-04-08 2762 struct kvm_arch *ka = &kvm->arch; 2860c4b1678646 Paolo Bonzini 2016-01-07 2763 kvm_make_all_cpus_request(kvm, KVM_REQ_MCLOCK_INPROGRESS); 0ae283075bf669 Paolo Bonzini 2021-04-08 2764 0ae283075bf669 Paolo Bonzini 2021-04-08 2765 /* no guest entries from this point */ 0ae283075bf669 Paolo Bonzini 2021-04-08 2766 spin_lock_irq(&ka->pvclock_gtod_sync_lock); 2860c4b1678646 Paolo Bonzini 2016-01-07 2767 } 2860c4b1678646 Paolo Bonzini 2016-01-07 2768 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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