------------[ cut here ]------------ lockdep bfs error:-1 WARNING: CPU: 0 PID: 13427 at kernel/locking/lockdep.c:1714 print_bfs_bug+0x130/0x1e0 kernel/locking/lockdep.c:1714 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 13427 Comm: kworker/u4:12 Not tainted 5.8.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bond3651 bond_alb_monitor Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x45 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:235 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:542 RIP: 0010:print_bfs_bug+0x130/0x1e0 kernel/locking/lockdep.c:1714 Code: 5b 08 00 74 2c 48 c7 c7 00 10 8d 8c e8 d9 72 01 00 66 90 85 db 75 05 5b 5d 41 5c c3 89 ee 48 c7 c7 e0 b0 4b 88 e8 52 d2 eb ff <0f> 0b 5b 5d 41 5c c3 0f 0b e8 32 8e 8c 06 85 c0 74 d7 48 c7 c0 50 RSP: 0018:ffffc900128df558 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88804c9ca200 RSI: ffffffff815d4f87 RDI: fffff5200251be9d RBP: 00000000ffffffff R08: 0000000000000001 R09: ffff8880ae620fcb R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804c9ca200 R13: dffffc0000000000 R14: ffff88804c9cab40 R15: 0000000000000000 check_irq_usage+0x5fa/0xb30 kernel/locking/lockdep.c:2261 check_prev_add kernel/locking/lockdep.c:2500 [inline] check_prevs_add kernel/locking/lockdep.c:2601 [inline] validate_chain kernel/locking/lockdep.c:3218 [inline] __lock_acquire+0x2ae1/0x56e0 kernel/locking/lockdep.c:4380 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:159 debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:636 debug_timer_activate kernel/time/timer.c:713 [inline] __mod_timer+0x5b6/0xf40 kernel/time/timer.c:1039 __queue_delayed_work+0x1a7/0x270 kernel/workqueue.c:1649 queue_delayed_work_on+0x1a2/0x210 kernel/workqueue.c:1674 queue_delayed_work include/linux/workqueue.h:522 [inline] bond_alb_monitor+0x485/0x1660 drivers/net/bonding/bond_alb.c:1618 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..