EXT4-fs (loop5): inodes count not valid: 4194432 vs 128 watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor7:14669] Modules linked in: irq event stamp: 12505070 hardirqs last enabled at (12505069): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (12505070): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (892196): [] __do_softirq+0x74d/0xa74 kernel/softirq.c:318 softirqs last disabled at (891815): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (891815): [] irq_exit+0x1d6/0x210 kernel/softirq.c:412 CPU: 1 PID: 14669 Comm: syz-executor7 Not tainted 4.19.0-rc1-next-20180831+ #53 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:101 Code: 4c d8 20 4c 89 08 5d c3 66 90 55 65 48 8b 04 25 40 ee 01 00 65 8b 15 cf 25 85 7e 48 89 e5 81 e2 00 01 1f 00 48 8b 75 08 75 2b <8b> 90 88 12 00 00 83 fa 02 75 20 48 8b 88 90 12 00 00 8b 80 8c 12 RSP: 0018:ffff88018debf210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff8801cc140580 RBX: ffff88018debf298 RCX: ffffffff8170837c RDX: 0000000000000000 RSI: ffffffff8170832b RDI: 0000000000000005 RBP: ffff88018debf210 R08: ffff8801cc140580 R09: ffffed003b605b98 R10: ffffed003b605b98 R11: ffff8801db02dcc7 R12: ffffed0031bd7e60 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f6063df5700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1ac7b09000 CR3: 00000001855c2000 CR4: 00000000001426e0 Call Trace: rep_nop arch/x86/include/asm/processor.h:665 [inline] cpu_relax arch/x86/include/asm/processor.h:670 [inline] csd_lock_wait kernel/smp.c:108 [inline] smp_call_function_single+0x3eb/0x5c0 kernel/smp.c:302 smp_call_function_many+0x884/0xa40 kernel/smp.c:434 smp_call_function kernel/smp.c:492 [inline] on_each_cpu+0x46/0x1d0 kernel/smp.c:604 flush_tlb_kernel_range+0x98/0x160 arch/x86/mm/tlb.c:685 __purge_vmap_area_lazy+0x11b/0x280 mm/vmalloc.c:676 vm_unmap_aliases+0x4a1/0x610 mm/vmalloc.c:1108 change_page_attr_set_clr+0x2b4/0x1010 arch/x86/mm/pageattr.c:1474 change_page_attr_clear arch/x86/mm/pageattr.c:1537 [inline] set_memory_ro+0x7b/0xa0 arch/x86/mm/pageattr.c:1766 bpf_jit_binary_lock_ro include/linux/filter.h:704 [inline] bpf_int_jit_compile+0xbba/0xe96 arch/x86/net/bpf_jit_comp.c:1168 bpf_prog_select_runtime+0x46d/0x650 kernel/bpf/core.c:1487 bpf_prog_load+0x11a4/0x1c80 kernel/bpf/syscall.c:1422 __do_sys_bpf kernel/bpf/syscall.c:2371 [inline] __se_sys_bpf kernel/bpf/syscall.c:2333 [inline] __x64_sys_bpf+0x36c/0x510 kernel/bpf/syscall.c:2333 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6063df4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f6063df56d4 RCX: 0000000000457099 RDX: 0000000000000048 RSI: 0000000020000000 RDI: 0000000000000005 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cb788 R14: 00000000004c3145 R15: 0000000000000001 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 14672 Comm: syz-executor1 Not tainted 4.19.0-rc1-next-20180831+ #53 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0xad5/0x5020 kernel/locking/lockdep.c:3435 Code: 74 08 3c 03 0f 8e 88 31 00 00 41 8b 86 38 08 00 00 83 c0 01 41 89 86 38 08 00 00 83 f8 2f 0f 87 2a 0c 00 00 3b 05 5b c1 c3 07 <41> bf 01 00 00 00 0f 86 f3 f6 ff ff 89 05 49 c1 c3 07 e9 e8 f6 ff RSP: 0018:ffff8801b2fa6c60 EFLAGS: 00000087 RAX: 0000000000000004 RBX: 000000005033f438 RCX: 0000000000000001 RDX: 1ffff10030fc1d57 RSI: ffff880187e0eac0 RDI: 0000000000000000 RBP: ffff8801b2fa6ff0 R08: 0000000000000008 R09: 0000000000000003 R10: ffff880187e0eb38 R11: a1977e10bfa73550 R12: 0000000044705ff2 R13: 0000000000000000 R14: ffff880187e0e280 R15: 0000000000000000 FS: 00007f067bb8e700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002199098 CR3: 00000001d7cef000 CR4: 00000000001426f0 Call Trace: lock_acquire+0x1e4/0x4f0 kernel/locking/lockdep.c:3901 rcu_lock_acquire include/linux/rcupdate.h:244 [inline] srcu_read_lock include/linux/srcu.h:199 [inline] kvm_arch_vcpu_put+0x171/0x420 arch/x86/kvm/x86.c:3178 kvm_sched_out+0x91/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3985 __fire_sched_out_preempt_notifiers kernel/sched/core.c:2497 [inline] fire_sched_out_preempt_notifiers kernel/sched/core.c:2505 [inline] prepare_task_switch kernel/sched/core.c:2611 [inline] context_switch kernel/sched/core.c:2790 [inline] __schedule+0xf1e/0x1df0 kernel/sched/core.c:3473 preempt_schedule_common+0x22/0x60 kernel/sched/core.c:3597 _cond_resched+0x1d/0x30 kernel/sched/core.c:4963 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x292/0x710 mm/slab.c:3552 kmem_cache_zalloc include/linux/slab.h:697 [inline] mmu_topup_memory_cache arch/x86/kvm/mmu.c:917 [inline] mmu_topup_memory_caches+0x2fa/0x3a0 arch/x86/kvm/mmu.c:970 kvm_mmu_load+0x21/0x1260 arch/x86/kvm/mmu.c:4957 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest+0x3c8b/0x61a0 arch/x86/kvm/x86.c:7495 vcpu_run arch/x86/kvm/x86.c:7693 [inline] kvm_arch_vcpu_ioctl_run+0x373/0x16d0 arch/x86/kvm/x86.c:7870 kvm_vcpu_ioctl+0x7b8/0x1280 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f067bb8dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f067bb8e6d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf460 R14: 00000000004c5786 R15: 0000000000000001