watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [migration/1:18]
Modules linked in:
CPU: 1 PID: 18 Comm: migration/1 Not tainted 5.10.226-syzkaller-00001-g6a01908517df #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:queued_write_lock_slowpath+0x185/0x390 kernel/locking/qrwlock.c:79
Code: b6 04 33 84 c0 4c 8b 64 24 08 74 37 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 2a 4c 89 ff e8 e4 49 57 00 eb 20 f3 90 42 0f b6 04 33 <84> c0 74 15 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 08 4c 89 ff e8 c2
RSP: 0018:ffffc90000170480 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 1ffffffff0da84c5 RCX: ffffffff8150fdbb
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff86d42628
RBP: ffffc90000170530 R08: dffffc0000000000 R09: fffffbfff0da84c6
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200002e09a
R13: 00000000000000ff R14: dffffc0000000000 R15: ffffffff86d42628
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000120f2c000 CR4: 00000000003506a0
DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 queued_write_lock include/asm-generic/qrwlock.h:95 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:319
 neigh_forced_gc net/core/neighbour.c:237 [inline]
 neigh_alloc net/core/neighbour.c:430 [inline]
 ___neigh_create+0x1eb/0x1a10 net/core/neighbour.c:592
 __neigh_create+0x32/0x40 net/core/neighbour.c:680
 ip6_finish_output2+0x957/0x1850 net/ipv6/ip6_output.c:142
 __ip6_finish_output+0x5ec/0x780 net/ipv6/ip6_output.c:216
 ip6_finish_output+0x34/0x1e0 net/ipv6/ip6_output.c:226
 NF_HOOK_COND include/linux/netfilter.h:288 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:249
 dst_output include/net/dst.h:437 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ndisc_send_skb+0x6e9/0xc00 net/ipv6/ndisc.c:511
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3964
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1789
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 f0 77 6c 86 e8 a1 79 f5 fc 48 83 3d 99 a9 b9 01 00 74 2a 48 89 df e8 e3 d5 9d fc 66 90 fb bf 01 00 00 00 <e8> 82 45 96 fc 65 8b 05 17 9f 4f 7b 85 c0 74 03 5b 5d c3 e8 83 ad
RSP: 0018:ffffc90000137c28 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff8881f7155fc0 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000137c30 R08: ffffffff8188e699 R09: fffffbfff0dc7713
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7155fc0
R13: ffff8881002f4f00 R14: dffffc0000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3784 [inline]
 finish_task_switch+0x130/0x5a0 kernel/sched/core.c:3884
 context_switch kernel/sched/core.c:4049 [inline]
 __schedule+0xbee/0x1330 kernel/sched/core.c:4804
 schedule+0x13d/0x1d0 kernel/sched/core.c:4882
 smpboot_thread_fn+0x5da/0x930 kernel/smpboot.c:160
 kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2115 Comm: syz.0.313 Not tainted 5.10.226-syzkaller-00001-g6a01908517df #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x90 kernel/kcov.c:283
Code: 08 03 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 49 ff c1 4c 89 09 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <55> 48 89 e5 4c 8b 45 08 65 48 8b 15 d0 bc 97 7e 65 8b 05 d5 bc 97
RSP: 0018:ffffc90000007350 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88810fee0000
RDX: 0000000000010302 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007458 R08: ffffffff815df792 R09: ffffffff815df65d
R10: 0000000000000002 R11: ffff88810fee0000 R12: ffff8881f7049940
R13: 0000000000000001 R14: 000002484c6b53ad R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f941c7ec5cd CR3: 000000000660f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1083 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1100
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
 sysvec_apic_timer_interrupt+0xba/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:ndisc_constructor+0x5e9/0x830
Code: c9 83 48 0f 45 d8 81 e6 de 00 00 00 48 0f 44 d8 31 ff e8 6a 34 3d fd 49 81 c4 38 01 00 00 4c 89 e0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 e7 e8 5d cd 7a fd 49 89 1c 24 4c 89 ef be 04 00 00 00
RSP: 0018:ffffc90000007570 EFLAGS: 00000246
RAX: 1ffff11027cad7a7 RBX: ffffffff83c92ff0 RCX: 0000000000000000
RDX: ffff88810fee0000 RSI: 0000000000000040 RDI: 0000000000000000
RBP: ffffc900000075d8 R08: ffffffff842d7b16 R09: ffffffff842d8aaa
R10: 0000000000000006 R11: ffff88810fee0000 R12: ffff88813e56bd38
R13: ffff88814d3a1908 R14: 0000000000000000 R15: dffffc0000000000
 ___neigh_create+0xb25/0x1a10 net/core/neighbour.c:604
 __neigh_create+0x32/0x40 net/core/neighbour.c:680
 ip6_finish_output2+0x957/0x1850 net/ipv6/ip6_output.c:142
 __ip6_finish_output+0x5ec/0x780 net/ipv6/ip6_output.c:216
 ip6_finish_output+0x34/0x1e0 net/ipv6/ip6_output.c:226
 NF_HOOK_COND include/linux/netfilter.h:288 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:249
 dst_output include/net/dst.h:437 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ndisc_send_skb+0x6e9/0xc00 net/ipv6/ndisc.c:511
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3964
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1789
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 f0 77 6c 86 e8 a1 79 f5 fc 48 83 3d 99 a9 b9 01 00 74 2a 48 89 df e8 e3 d5 9d fc 66 90 fb bf 01 00 00 00 <e8> 82 45 96 fc 65 8b 05 17 9f 4f 7b 85 c0 74 03 5b 5d c3 e8 83 ad
RSP: 0018:ffffc90000e770a8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff8881f7055fc0 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000e770b0 R08: ffffffff8188e699 R09: fffffbfff0dc7713
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7055fc0
R13: ffff88810fee0000 R14: dffffc0000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3784 [inline]
 finish_task_switch+0x130/0x5a0 kernel/sched/core.c:3884
 context_switch kernel/sched/core.c:4049 [inline]
 __schedule+0xbee/0x1330 kernel/sched/core.c:4804
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:5065
 irqentry_exit_cond_resched kernel/entry/common.c:365 [inline]
 irqentry_exit+0x4f/0x60 kernel/entry/common.c:395
 sysvec_apic_timer_interrupt+0xcb/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:unwind_next_frame+0x340/0x700 arch/x86/kernel/unwind_frame.c:295
Code: 02 00 00 4d 8d 6e 50 4c 89 eb 48 c1 eb 03 80 3c 13 00 74 12 4c 89 ef e8 1e 2f 76 00 48 ba 00 00 00 00 00 fc ff df 49 8b 45 00 <48> 85 c0 74 1e 80 3c 13 00 74 0e 4c 89 ef 48 89 c3 e8 9a 2f 76 00
RSP: 0018:ffffc90000e77398 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff920001cee8e RCX: 0000000000e77401
RDX: dffffc0000000000 RSI: ffffffff81462ef9 RDI: ffffc90000e77f48
RBP: ffffc90000e77410 R08: ffffc90000e77508 R09: 0000000000000008
R10: ffffc90000e77510 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc90000e77470 R14: ffffc90000e77420 R15: 1ffff920001cee84
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:121
 save_stack+0x97/0x240 mm/page_owner.c:146
 __reset_page_owner+0x36/0x150 mm/page_owner.c:174
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1349 [inline]
 free_pcp_prepare mm/page_alloc.c:1421 [inline]
 free_unref_page_prepare+0x2ae/0x2d0 mm/page_alloc.c:3336
 free_unref_page mm/page_alloc.c:3391 [inline]
 free_the_page+0x9e/0x370 mm/page_alloc.c:5407
 __free_pages+0x67/0xc0 mm/page_alloc.c:5418
 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2301
 __vfree mm/vmalloc.c:2349 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2380
 kcov_put kernel/kcov.c:408 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:510
 __fput+0x33d/0x7b0 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x129/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc83/0x2a50 kernel/exit.c:863
 do_group_exit+0x141/0x310 kernel/exit.c:985
 get_signal+0x10a0/0x1410 kernel/signal.c:2790
 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc8bbedf719
Code: Unable to access opcode bytes at RIP 0x7fc8bbedf6ef.
RSP: 002b:00007fc8bab37038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007fc8bc097058 RCX: 00007fc8bbedf719
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000007
RBP: 00007fc8bbf5239e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc8bc097058 R15: 00007fffaa323fb8