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DEBUG_LOCKS_WARN_ON(class_idx > MAX_LOCKDEP_KEYS)
WARNING: CPU: 1 PID: 16 at kernel/locking/lockdep.c:3673 __lock_acquire+0x1887/0x3fb0 kernel/locking/lockdep.c:3673
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0+ #98
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:__lock_acquire+0x1887/0x3fb0 kernel/locking/lockdep.c:3673
Code: d2 0f 85 7b 1f 00 00 44 8b 3d 29 0d 07 08 45 85 ff 0f 85 20 f3 ff ff 48 c7 c6 20 5b 6b 87 48 c7 c7 60 31 6b 87 e8 37 ef eb ff <0f> 0b e9 09 f3 ff ff 0f 0b e9 41 f1 ff ff 8b 1d c5 38 05 09 85 db
RSP: 0018:ffff8880aa2c7900 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff815ad706 RDI: ffffed1015458f12
RBP: ffff8880aa2c7a38 R08: ffff8880aa2ae440 R09: fffffbfff1133645
R10: fffffbfff1133644 R11: ffffffff8899b223 R12: 0000000099f7f6bb
R13: 0000000000000036 R14: 00000000000c36bb R15: 0000000000000000
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
 spin_lock include/linux/spinlock.h:329 [inline]
 __queue_work+0x9ce/0x1180 kernel/workqueue.c:1446
 queue_work_on+0x192/0x200 kernel/workqueue.c:1518
 queue_work include/linux/workqueue.h:494 [inline]
 rxrpc_peer_keepalive_timeout net/rxrpc/net_ns.c:41 [inline]
 rxrpc_peer_keepalive_timeout+0x97/0xd0 net/rxrpc/net_ns.c:35
 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694
 __do_softirq+0x266/0x95a kernel/softirq.c:293
 run_ksoftirqd kernel/softirq.c:655 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:647
 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..