watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.4.1747:6096] Modules linked in: CPU: 1 PID: 6096 Comm: syz.4.1747 Not tainted 6.1.90-syzkaller-00126-g4ac7f55b9824 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 kernel/kcov.c:207 Code: 00 cb 8c 7e 65 8b 15 01 cb 8c 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 6c 0b 00 00 00 74 2c 8b 91 48 0b 00 00 <83> fa 02 75 21 48 8b 91 50 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 4c RSP: 0000:ffffc900020ef810 EFLAGS: 00000246 RAX: ffffffff816c074c RBX: 1ffff1103ee07a99 RCX: ffff88811866d100 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900020ef810 R08: ffffffff816c0715 R09: ffffed1023045f45 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000800000000 R14: ffff8881f703d4c8 R15: dffffc0000000000 FS: 0000555556ac6500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3066107a8c CR3: 000000011b6b7000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: csd_lock_wait kernel/smp.c:453 [inline] smp_call_function_many_cond+0x86c/0x930 kernel/smp.c:998 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166 native_flush_tlb_multi+0x143/0x210 __flush_tlb_multi arch/x86/include/asm/paravirt.h:87 [inline] flush_tlb_multi arch/x86/mm/tlb.c:924 [inline] flush_tlb_mm_range+0x298/0x360 arch/x86/mm/tlb.c:1010 flush_tlb_page arch/x86/include/asm/tlbflush.h:240 [inline] ptep_clear_flush+0x115/0x150 mm/pgtable-generic.c:98 wp_page_copy+0xca9/0x1690 mm/memory.c:3252 do_wp_page+0xc5c/0xf30 handle_pte_fault mm/memory.c:5145 [inline] __handle_mm_fault mm/memory.c:5269 [inline] handle_mm_fault+0x15e0/0x30e0 mm/memory.c:5409 do_user_addr_fault arch/x86/mm/fault.c:1354 [inline] handle_page_fault arch/x86/mm/fault.c:1497 [inline] exc_page_fault+0x3b3/0x700 arch/x86/mm/fault.c:1553 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0033:0x7f3065e4addb Code: 0f 85 74 0b 00 00 4c 89 4c 24 30 48 89 fe 31 c0 b9 40 42 0f 00 ba 81 00 00 00 c7 07 01 00 00 00 bf ca 00 00 00 e8 c5 c5 12 00 <83> 05 aa cc 2b 00 01 4c 8b 4c 24 30 80 bc 24 e8 00 00 00 00 0f b6 RSP: 002b:00007ffc021898e0 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f3066105f80 RCX: 00007f3065f773b9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f3066105f88 RBP: 00007f3066105f8c R08: 00007f3066105f80 R09: 00007ffc02189bbf R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3066105f80 R14: 0000000000000003 R15: 000000000000008c Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6097 Comm: syz.4.1747 Not tainted 6.1.90-syzkaller-00126-g4ac7f55b9824 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline] RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline] RIP: 0010:kvm_wait+0x117/0x180 arch/x86/kernel/kvm.c:1058 Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d 4a 01 31 04 f4 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b RSP: 0018:ffffc90000d27660 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff920001a4ed0 RCX: ffffffff851f798c RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88812c7f1d40 RBP: ffffc90000d27710 R08: dffffc0000000000 R09: ffffed10258fe3a9 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88812c7f1d40 R14: 0000000000000003 R15: 1ffff920001a4ed4 FS: 00007f3066d036c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc021899f8 CR3: 000000011b6b7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 queue_stack_map_push_elem+0x17a/0x570 kernel/bpf/queue_stack_maps.c:214 bpf_prog_80daba7f9ca62790+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline] bpf_trace_run2+0x133/0x290 kernel/trace/bpf_trace.c:2312 __bpf_trace_contention_end+0xb/0x10 include/trace/events/lock.h:122 trace_contention_end include/trace/events/lock.h:122 [inline] __pv_queued_spin_lock_slowpath+0xd59/0xda0 kernel/locking/qspinlock.c:560 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 queue_stack_map_push_elem+0x17a/0x570 kernel/bpf/queue_stack_maps.c:214 bpf_prog_80daba7f9ca62790+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline] bpf_trace_run2+0x133/0x290 kernel/trace/bpf_trace.c:2312 __bpf_trace_sys_enter+0x62/0x70 include/trace/events/syscalls.h:18 trace_sys_enter include/trace/events/syscalls.h:18 [inline] syscall_trace_enter kernel/entry/common.c:81 [inline] __syscall_enter_from_user_work kernel/entry/common.c:100 [inline] syscall_enter_from_user_mode+0x176/0x190 kernel/entry/common.c:118 do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:77 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f3065f76fbb Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 RSP: 002b:00007f3066d03070 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3065f76fbb RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8 RBP: 00007f3066105f80 R08: 0000000000000000 R09: 00007ffc02189777 R10: 0000000000000008 R11: 0000000000000246 R12: ffffffffffffffa8 R13: 000000000000000b R14: 00007ffc02189690 R15: 00007ffc02189778