unwind stack type:0 next_sp:          (null) mask:0x6 graph_idx:0
ffff8801db3076e0: ffff8801db307768 (0xffff8801db307768)
ffff8801db3076e8: ffffffff8127e0de (__save_stack_trace+0x6e/0xd0)
ffff8801db3076f0: 0000000000000000 ...
ffff8801db3076f8: ffff8801d00a0000 (0xffff8801d00a0000)
ffff8801db307700: ffff8801d00a8000 (0xffff8801d00a8000)
ffff8801db307708: 0000000000000000 ...
ffff8801db307710: 0000000000000006 (0x6)
ffff8801db307718: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db307720: 0000010100000000 (0x10100000000)
ffff8801db307728: 0000000000000000 ...
ffff8801db307730: ffff8801db3076e0 (0xffff8801db3076e0)
ffff8801db307738: ffffffff81382feb (loop2+0x291/0x3a6)
ffff8801db307740: ffff8801d00a7058 (0xffff8801d00a7058)
ffff8801db307748: ffff8801ceb4d670 (0xffff8801ceb4d670)
ffff8801db307750: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db307758: ffff8801ceb4d668 (0xffff8801ceb4d668)
ffff8801db307760: ffff8801ceb4d688 (0xffff8801ceb4d688)
ffff8801db307768: ffff8801db307778 (0xffff8801db307778)
ffff8801db307770: ffffffff8127e156 (save_stack_trace+0x16/0x20)
ffff8801db307778: ffff8801db307c88 (0xffff8801db307c88)
ffff8801db307780: ffffffff8154cf6d (__lock_acquire+0x20fd/0x4620)
ffff8801db307788: 0000000000000082 (0x82)
ffff8801db307790: ffff8801cf0bee50 (0xffff8801cf0bee50)
ffff8801db307798: ffff880100000002 (0xffff880100000002)
ffff8801db3077a0: ffff880100000002 (0xffff880100000002)
ffff8801db3077a8: 0000000000000082 (0x82)
ffff8801db3077b0: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db3077b8: 0000000041b58ab3 (0x41b58ab3)
ffff8801db3077c0: ffffffff85736d28 (K512_4+0x66e8/0x874c0)
ffff8801db3077c8: ffffffff81550970 (lock_downgrade+0x990/0x990)
ffff8801db3077d0: 0000000000025c00 (0x25c00)
ffff8801db3077d8: 0000000000025c00 (0x25c00)
ffff8801db3077e0: 0000000000000000 ...
ffff8801db3077f0: 1ffff1003b660f0e (0x1ffff1003b660f0e)
ffff8801db3077f8: ffffffff86b3c220 (chainhash_table+0x8700/0x40020)
ffff8801db307800: ffff8801cf0bee48 (0xffff8801cf0bee48)
ffff8801db307808: ffff8801cf0beec8 (0xffff8801cf0beec8)
ffff8801db307810: ffff8801cf0beed8 (0xffff8801cf0beed8)
ffff8801db307818: ffffffff8705fce0 (console_drivers+0x40/0x40)
ffff8801db307820: bc06ba322b1618a3 (0xbc06ba322b1618a3)
ffff8801db307828: ffff8801cf0bee50 (0xffff8801cf0bee50)
ffff8801db307830: ffffffff8705fce0 (console_drivers+0x40/0x40)
ffff8801db307838: 1ffff1003b660f08 (0x1ffff1003b660f08)
ffff8801db307840: 0000000041b58ab3 (0x41b58ab3)
ffff8801db307848: ffffffff85736c60 (K512_4+0x6620/0x874c0)
ffff8801db307850: ffffffff8154ae70 (debug_check_no_locks_freed+0x3d0/0x3d0)
ffff8801db307858: 0000000000000082 (0x82)
ffff8801db307860: 00000000db307a20 (0xdb307a20)
ffff8801db307868: ffff8801db31c218 (0xffff8801db31c218)
ffff8801db307870: 0000000041b58ab3 (0x41b58ab3)
ffff8801db307878: 0000000041b58ab3 (0x41b58ab3)
ffff8801db307880: ffffffff85737132 (K512_4+0x6af2/0x874c0)
ffff8801db307888: ffffffff8155e3c0 (do_raw_spin_trylock+0x190/0x190)
ffff8801db307890: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db307898: 0000000041b58a00 (0x41b58a00)
ffff8801db3078a0: 0000000000000000 ...
ffff8801db3078a8: 0000000000000003 (0x3)
ffff8801db3078b0: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db3078b8: dffffc0000000000 (0xdffffc0000000000)
ffff8801db3078c0: ffff8801cf0bee58 (0xffff8801cf0bee58)
ffff8801db3078c8: ffff8801db307910 (0xffff8801db307910)
ffff8801db3078d0: ffffffff81549d92 (mark_held_locks+0xb2/0x100)
ffff8801db3078d8: 0000000000000001 (0x1)
ffff8801db3078e0: ffffffff00000002 (0xffffffff00000002)
ffff8801db3078e8: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db3078f0: ffffffff84d418d7 (_raw_spin_unlock_irq+0x27/0x70)
ffff8801db3078f8: dffffc0000000000 (0xdffffc0000000000)
ffff8801db307900: ffff8801db307ba8 (0xffff8801db307ba8)
ffff8801db307908: ffff8801db307c30 (0xffff8801db307c30)
ffff8801db307910: ffff8801db307930 (0xffff8801db307930)
ffff8801db307918: ffffffff81549f7e (trace_hardirqs_on_caller+0x19e/0x5c0)
ffff8801db307920: ffff8801db31c200 (0xffff8801db31c200)
ffff8801db307928: 00000000fffc80f5 (0xfffc80f5)
ffff8801db307930: ffff8801db307940 (0xffff8801db307940)
ffff8801db307938: ffffffff8154a3ad (trace_hardirqs_on+0xd/0x10)
ffff8801db307940: ffff8801db307958 (0xffff8801db307958)
ffff8801db307948: ffffffff84d418d7 (_raw_spin_unlock_irq+0x27/0x70)
ffff8801db307950: 00000000fffc80f6 (0xfffc80f6)
ffff8801db307958: ffff8801db307c58 (0xffff8801db307c58)
ffff8801db307960: ffffffff815d96ef (__run_timers+0x16f/0xb90)
ffff8801db307968: 0000000041b58ab3 (0x41b58ab3)
ffff8801db307970: ffffed003b660f4e (0xffffed003b660f4e)
ffff8801db307978: 1ffff1003b660f3a (0x1ffff1003b660f3a)
ffff8801db307980: ffff8801db307a30 (0xffff8801db307a30)
ffff8801db307988: ffff8801db307bb0 (0xffff8801db307bb0)
ffff8801db307990: ffff8801db31c248 (0xffff8801db31c248)
ffff8801db307998: ffff8801db307ab0 (0xffff8801db307ab0)
ffff8801db3079a0: ffff8801db307ba8 (0xffff8801db307ba8)
ffff8801db3079a8: ffff8801db31c240 (0xffff8801db31c240)
ffff8801db3079b0: 0000000041b58ab3 (0x41b58ab3)
ffff8801db3079b8: ffff8801db31c200 (0xffff8801db31c200)
ffff8801db3079c0: ffffed003b660f56 (0xffffed003b660f56)
ffff8801db3079c8: ffff8801db307ba8 (0xffff8801db307ba8)
ffff8801db3079d0: 0000000041b58ab3 (0x41b58ab3)
ffff8801db3079d8: ffffffff85739a50 (K512_4+0x9410/0x874c0)
ffff8801db3079e0: ffffffff815d9580 (del_timer_sync+0x240/0x240)
ffff8801db3079e8: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db3079f0: 0000000041b58ab3 (0x41b58ab3)
ffff8801db3079f8: ffffffff85736bc8 (K512_4+0x6588/0x874c0)
ffff8801db307a00: ffffffff81548910 (print_usage_bug+0x480/0x480)
ffff8801db307a08: dffffc0000000000 (0xdffffc0000000000)
ffff8801db307a10: 0000000000000000 ...
ffff8801db307a18: ffff8801db31d590 (0xffff8801db31d590)
ffff8801db307a20: ffff8801db31dd50 (0xffff8801db31dd50)
ffff8801db307a28: ffff8801db307a78 (0xffff8801db307a78)
ffff8801db307a30: ffffffff84d0b069 (timerqueue_add+0x1e9/0x280)
ffff8801db307a38: ffff8801db31db98 (0xffff8801db31db98)
ffff8801db307a40: ffff8801db31d590 (0xffff8801db31d590)
ffff8801db307a48: 1ffff1003b660f5d (0x1ffff1003b660f5d)
ffff8801db307a50: 0000000000000001 (0x1)
ffff8801db307a58: ffff8801cf0bee88 (0xffff8801cf0bee88)
ffff8801db307a60: ffffffff0000054f (0xffffffff0000054f)
ffff8801db307a68: ffff8801db307b48 (0xffff8801db307b48)
ffff8801db307a70: ffff8801db307ab0 (0xffff8801db307ab0)
ffff8801db307a78: ffffffff8153e049 (find_held_lock+0x39/0x1d0)
ffff8801db307a80: ffffffff00000002 (0xffffffff00000002)
ffff8801db307a88: 1ffff1003b660f5d (0x1ffff1003b660f5d)
ffff8801db307a90: ffff8801db307b48 (0xffff8801db307b48)
ffff8801db307a98: ffff8801db307c48 (0xffff8801db307c48)
ffff8801db307aa0: ffffffff87061d08 (tk_core+0x8/0x140)
ffff8801db307aa8: ffffffff8705fce0 (console_drivers+0x40/0x40)
ffff8801db307ab0: ffff8801db307c70 (0xffff8801db307c70)
ffff8801db307ab8: 0000000000000082 (0x82)
ffff8801db307ac0: ffff8801cf0bee50 (0xffff8801cf0bee50)
ffff8801db307ac8: ffffffff00000002 (0xffffffff00000002)
ffff8801db307ad0: 0000000041b58ab3 (0x41b58ab3)
ffff8801db307ad8: ffffffff857369d0 (K512_4+0x6390/0x874c0)
ffff8801db307ae0: ffffffff8652c6e8 (lock_chains+0xe48/0x200020)
ffff8801db307ae8: 0000000041b58ab3 (0x41b58ab3)
ffff8801db307af0: ffffffff85736d28 (K512_4+0x66e8/0x874c0)
ffff8801db307af8: ffffffff81550970 (lock_downgrade+0x990/0x990)
ffff8801db307b00: dffffc0000000000 (0xdffffc0000000000)
ffff8801db307b08: 1ffff1003b660f8d (0x1ffff1003b660f8d)
ffff8801db307b10: ffff8801db31d4c0 (0xffff8801db31d4c0)
ffff8801db307b18: ffff8801db31d4c0 (0xffff8801db31d4c0)
ffff8801db307b20: 0000000000000000 ...
ffff8801db307b28: 1ffff1003b660f75 (0x1ffff1003b660f75)
ffff8801db307b30: 0000000000000000 ...
ffff8801db307b38: 0000000000000002 (0x2)
ffff8801db307b40: 0000000000000001 (0x1)
ffff8801db307b48: ffff880100000001 (0xffff880100000001)
ffff8801db307b50: ffffffff815518b5 (lock_acquire+0x1d5/0x580)
ffff8801db307b58: 0000000000000000 ...
ffff8801db307b60: ffffffff81613c03 (clockevents_program_event+0x163/0x2e0)
ffff8801db307b68: 0000000000000000 ...
ffff8801db307b70: 0000000000000082 (0x82)
ffff8801db307b78: 00000010800ff55b (0x10800ff55b)
ffff8801db307b80: 0000000000000002 (0x2)
ffff8801db307b88: fffffbfff0b98234 (0xfffffbfff0b98234)
ffff8801db307b90: 0000000000000082 (0x82)
ffff8801db307b98: 0000000000000001 (0x1)
ffff8801db307ba0: ffffffff87061d08 (tk_core+0x8/0x140)
ffff8801db307ba8: ffff88021fff9057 (0xffff88021fff9057)
ffff8801db307bb0: ffff8801cf0bee58 (0xffff8801cf0bee58)
ffff8801db307bb8: ffff8801cf0be5c0 (0xffff8801cf0be5c0)
ffff8801db307bc0: ffffed0039e17dca (0xffffed0039e17dca)
ffff8801db307bc8: ffffffff85b38160 (rcu_callback_map+0x60/0x60)
ffff8801db307bd0: 0000000000000000 ...