------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 1 PID: 18435 at kernel/locking/lockdep.c:167 hlock_class kernel/locking/lockdep.c:167 [inline] WARNING: CPU: 1 PID: 18435 at kernel/locking/lockdep.c:167 hlock_class kernel/locking/lockdep.c:156 [inline] WARNING: CPU: 1 PID: 18435 at kernel/locking/lockdep.c:167 mark_lock+0x22b/0x1220 kernel/locking/lockdep.c:3643 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 18435 Comm: syz-executor.2 Not tainted 5.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:hlock_class kernel/locking/lockdep.c:167 [inline] RIP: 0010:hlock_class kernel/locking/lockdep.c:156 [inline] RIP: 0010:mark_lock+0x22b/0x1220 kernel/locking/lockdep.c:3643 Code: d0 7c 08 84 d2 0f 85 a8 0e 00 00 44 8b 1d ed 73 21 09 45 85 db 75 b6 48 c7 c6 60 80 2b 88 48 c7 c7 a0 80 2b 88 e8 b4 3f eb ff <0f> 0b 31 db e9 aa fe ff ff 48 c7 c7 e0 94 66 8b e8 90 4b 58 00 e9 RSP: 0018:ffffc90000da84d8 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff815e5e56 RDI: fffff520001b508d RBP: ffffc90000da8528 R08: ffff888096c8c0c0 R09: fffffbfff133328d R10: fffffbfff133328c R11: ffffffff89999463 R12: 0000000000000004 R13: ffff888096c8ca48 R14: 0000000000000001 R15: 0000000000042c30 mark_usage kernel/locking/lockdep.c:3566 [inline] __lock_acquire+0x1e8e/0x4a00 kernel/locking/lockdep.c:3909 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4485 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] __netif_tx_lock include/linux/netdevice.h:3937 [inline] sch_direct_xmit+0x2e0/0xd30 net/sched/sch_generic.c:311 __dev_xmit_skb net/core/dev.c:3621 [inline] __dev_queue_xmit+0x2707/0x35c0 net/core/dev.c:3982 dev_queue_xmit+0x18/0x20 net/core/dev.c:4046 arp_xmit_finish net/ipv4/arp.c:630 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] arp_xmit+0xdf/0x3f0 net/ipv4/arp.c:639 arp_send_dst.part.0+0x202/0x290 net/ipv4/arp.c:317 arp_send_dst net/ipv4/arp.c:390 [inline] arp_solicit+0x748/0x1370 net/ipv4/arp.c:389 neigh_probe+0xd0/0x120 net/core/neighbour.c:1009 neigh_timer_handler+0x59d/0x10e0 net/core/neighbour.c:1090 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline] RIP: 0010:lock_release+0x4c0/0x960 kernel/locking/lockdep.c:4506 Code: 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 8c 03 00 00 48 83 3d f7 56 38 08 00 0f 84 7f 01 00 00 48 8b bd 48 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffffc900077a76e8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff132669b RBX: 1ffff92000ef4ee2 RCX: 1ffffffff16cd29c RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000282 RBP: ffffc900077a77b8 R08: 0000000000000002 R09: ffff888096c8c950 R10: ffff888096c8c980 R11: ffff888096c8c0c0 R12: ffff888096c8c0c0 R13: ffffffff8192fe12 R14: ffffc900077a7790 R15: ffff888096c8c0c0 rcu_lock_release include/linux/rcupdate.h:213 [inline] rcu_read_unlock include/linux/rcupdate.h:671 [inline] filemap_map_pages+0xa64/0x14e0 mm/filemap.c:2667 do_fault_around mm/memory.c:3598 [inline] do_read_fault mm/memory.c:3632 [inline] do_fault mm/memory.c:3766 [inline] handle_pte_fault mm/memory.c:3997 [inline] __handle_mm_fault+0x2de6/0x3cc0 mm/memory.c:4127 handle_mm_fault+0x3b2/0xa50 mm/memory.c:4164 faultin_page mm/gup.c:640 [inline] __get_user_pages+0x7b2/0x1ac0 mm/gup.c:851 populate_vma_page_range+0x20d/0x2a0 mm/gup.c:1235 __mm_populate+0x204/0x380 mm/gup.c:1283 mm_populate include/linux/mm.h:2347 [inline] vm_mmap_pgoff+0x213/0x230 mm/util.c:511 ksys_mmap_pgoff+0xf7/0x630 mm/mmap.c:1601 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45aff9 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fee769b8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fee769b96d4 RCX: 000000000045aff9 RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000000020000000 RBP: 000000000075bfc8 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000710 R14: 00000000004c8474 R15: 000000000075bfd4 Kernel Offset: disabled Rebooting in 86400 seconds..