watchdog: BUG: soft lockup - CPU#0 stuck for 116s! [syz-executor.2:23360] Modules linked in: irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [] copy_process+0x23f9/0x97b0 kernel/fork.c:2441 softirqs last enabled at (0): [] copy_process+0x245b/0x97b0 kernel/fork.c:2442 softirqs last disabled at (0): [<0000000000000000>] 0x0 CPU: 0 PID: 23360 Comm: syz-executor.2 Not tainted 6.7.0-syzkaller-04665-gbe7c19de9ecf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x1f/0x60 kernel/kcov.c:207 Code: 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 48 8b 14 25 80 c2 03 00 65 8b 05 24 ae 7b 7e a9 00 01 ff 00 48 8b 34 24 74 0f c4 01 74 35 8b 82 fc 15 00 00 85 c0 74 2b 8b 82 d8 15 00 00 83 RSP: 0018:ffffc900000075b0 EFLAGS: 00000206 RAX: 0000000000000102 RBX: ffffffff8f4ccc70 RCX: ffffffff813a2aa4 RDX: ffff888024b90000 RSI: ffffffff813a2a5a RDI: 0000000000000006 RBP: ffffffff8f4ccc78 R08: 0000000000000006 R09: ffffffff81766c37 R10: ffffffff81766c75 R11: dffffc0000000000 R12: ffffffff81766c37 R13: ffffffff81766c75 R14: dffffc0000000000 R15: ffffffff8f4ccc7c FS: 00007f8905d956c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3162f000 CR3: 000000004cbbf000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __orc_find+0x7a/0x130 arch/x86/kernel/unwind_orc.c:100 orc_find arch/x86/kernel/unwind_orc.c:227 [inline] unwind_next_frame+0x329/0x2390 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:314 [inline] __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:340 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3813 [inline] slab_alloc_node mm/slub.c:3860 [inline] kmem_cache_alloc_node+0x177/0x340 mm/slub.c:3903 kmalloc_reserve+0x166/0x260 net/core/skbuff.c:560 __alloc_skb+0x12b/0x330 net/core/skbuff.c:651 alloc_skb include/linux/skbuff.h:1296 [inline] new_skb+0x21/0x200 drivers/block/aoe/aoecmd.c:66 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:425 [inline] aoecmd_cfg+0x2af/0x7b0 drivers/block/aoe/aoecmd.c:1362 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x759/0xaa0 kernel/time/timer.c:2038 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2051 __do_softirq+0x21a/0x8de kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 c6 fc db f6 48 89 df e8 be 74 dc f6 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 c5 14 ce f6 65 8b 05 86 59 77 75 85 c0 74 12 5b RSP: 0018:ffffc90008427d60 EFLAGS: 00000246 RAX: 0000000000000046 RBX: ffff88802ef86c00 RCX: 1ffffffff1e74bd3 RDX: 0000000000000000 RSI: ffffffff8b2f8680 RDI: ffffffff8a8c690e RBP: 0000000000000292 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8f3a2ad7 R11: ffffffff8acf2fc0 R12: ffff888046ab1000 R13: 1ffff92001084fba R14: ffff888024b90000 R15: ffff88823bd22a78 perf_unpin_context kernel/events/core.c:1445 [inline] __do_sys_perf_event_open+0x16cc/0x2c50 kernel/events/core.c:12769 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f890507cda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8905d950c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f89051abf80 RCX: 00007f890507cda9 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00000000200003c0 RBP: 00007f89050c947a R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f89051abf80 R15: 00007ffecdcfd868 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 23330 Comm: syz-executor.5 Not tainted 6.7.0-syzkaller-04665-gbe7c19de9ecf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:__perf_event_overflow+0xbe/0x9f0 kernel/events/core.c:9569 Code: da d7 ff 4d 85 f6 0f 84 f3 06 00 00 e8 cb de d7 ff 8b 34 24 4c 8d b3 34 04 00 00 48 89 df e8 89 fc ff ff 4c 89 f2 48 c1 ea 03 <89> 04 24 48 b8 00 00 00 00 00 fc ff df 0f b6 14 02 4c 89 f0 83 e0 RSP: 0018:ffffc900001f0280 EFLAGS: 00000803 RAX: 0000000000000000 RBX: ffff888046864860 RCX: ffffffff81b03309 RDX: 1ffff11008d0c992 RSI: ffffffff81b03317 RDI: 0000000000000001 RBP: ffffc900001f0698 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900001f0300 R13: ffff888046864cdc R14: ffff888046864c94 R15: 0000000000000000 FS: 00007fece4f066c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000827e80 CR3: 000000002b87c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: perf_swevent_hrtimer+0x370/0x3e0 kernel/events/core.c:11066 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x647/0xc20 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline] __sysvec_apic_timer_interrupt+0x105/0x400 arch/x86/kernel/apic/apic.c:1082 sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:ndisc_constructor+0x503/0xa90 net/ipv6/ndisc.c:362 Code: 02 00 0f 85 88 05 00 00 49 8b 6d 10 e8 46 ea 47 f8 48 8d 7d 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 e1 04 00 00 48 83 7d 10 00 48 c7 c0 40 18 fa 8b 48 c7 c5 a0 RSP: 0018:ffffc900001f0740 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88802415b000 RCX: 0000000002000000 RDX: 1ffffffff17d9fea RSI: ffffffff89402a0a RDI: ffffffff8becff50 RBP: ffffffff8becff40 R08: 0000000002000000 R09: 000000000000030a R10: 0000000000000001 R11: 0200000000000000 R12: ffff888080359000 R13: ffff88807db20000 R14: ffff88802415b124 R15: ffff88802415b318 ___neigh_create+0x7ee/0x2a70 net/core/neighbour.c:660 ip6_finish_output2+0x10dd/0x1820 net/ipv6/ip6_output.c:128 __ip6_finish_output net/ipv6/ip6_output.c:211 [inline] ip6_finish_output+0x3c7/0xf70 net/ipv6/ip6_output.c:222 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip6_output+0x1e2/0x530 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:451 [inline] NF_HOOK include/linux/netfilter.h:314 [inline] ndisc_send_skb+0xa13/0x18f0 net/ipv6/ndisc.c:509 ndisc_send_rs+0x133/0x6a0 net/ipv6/ndisc.c:719 addrconf_rs_timer+0x412/0x850 net/ipv6/addrconf.c:3977 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x759/0xaa0 kernel/time/timer.c:2038 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2051 __do_softirq+0x21a/0x8de kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:finish_task_switch.isra.0+0x223/0xca0 kernel/sched/core.c:5274 Code: 0a 00 00 44 8b 0d d5 25 df 0d 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 cc f8 ff ff e8 b7 87 33 00 fb 65 48 8b 1c 25 80 c2 03 00 <48> 8d bb d8 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffffc9000594f868 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffff88807d1c3b80 RCX: 1ffffffff1e74bd3 RDX: 0000000000000000 RSI: ffffffff8b2f8680 RDI: ffffffff815b38d9 RBP: ffffc9000594f8b0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8f3a2ad7 R11: 0000000000000000 R12: ffff8880b993da38 R13: ffff8880156b8000 R14: ffff88801679af80 R15: ffff8880b993ccc0 context_switch kernel/sched/core.c:5403 [inline] __schedule+0xf1a/0x5c00 kernel/sched/core.c:6727 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6904 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45 smp_call_function_single+0x59b/0x650 kernel/smp.c:652 task_function_call+0xe9/0x170 kernel/events/core.c:120 perf_install_in_context+0x2da/0x580 kernel/events/core.c:2909 __do_sys_perf_event_open+0x1683/0x2c50 kernel/events/core.c:12768 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fece427cda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fece4f060c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fece43abf80 RCX: 00007fece427cda9 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00000000200003c0 RBP: 00007fece42c947a R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fece43abf80 R15: 00007fffc2152688