RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 0000000000000cb5 R14: 00000000004ce9d8 R15: 0000000000000006 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 WARNING: kernel stack frame pointer at ffff8880aed073b0 in syz-executor.4:30470 has bad value 1ffff11015da0e82 unwind stack type:0 next_sp: (null) mask:0x6 graph_idx:0 ffff8880aed073b0: 1ffff11015da0e82 (0x1ffff11015da0e82) ffff8880aed073b8: ffffffff85237dc0 (sk_filter_trim_cap+0x220/0x7f0) ffff8880aed073c0: 0000000000000010 (0x10) ffff8880aed073c8: 0000000000000246 (0x246) ffff8880aed073d0: ffff8880aed073e8 (0xffff8880aed073e8) ffff8880aed073d8: ffff8880aed07498 (0xffff8880aed07498) ffff8880aed073e0: ffffffff85237df5 (sk_filter_trim_cap+0x255/0x7f0) ffff8880aed073e8: 0000000000000000 ... ffff8880aed073f0: ffffc900018e6002 (0xffffc900018e6002) ffff8880aed073f8: ffff888095859298 (0xffff888095859298) ffff8880aed07400: 0000000187f928a8 (0x187f928a8) ffff8880aed07408: ffff8880a8954e80 (0xffff8880a8954e80) ffff8880aed07410: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07418: ffffffff87ad6892 (ORMASK+0xf6d2/0x13dba0) ffff8880aed07420: ffffffff85237ba0 (sock_ops_is_valid_access+0x70/0x70) ffff8880aed07428: ffff88821fff704f (0xffff88821fff704f) ffff8880aed07430: ffffed1043ffee0b (0xffffed1043ffee0b) ffff8880aed07438: ffff88821fff7058 (0xffff88821fff7058) ffff8880aed07440: 1fffffff00000008 (0x1fffffff00000008) ffff8880aed07448: ffff88821fff705b (0xffff88821fff705b) ffff8880aed07450: ffff8880958592aa (0xffff8880958592aa) ffff8880aed07458: 0000000000000004 (0x4) ffff8880aed07460: ffff8880958592aa (0xffff8880958592aa) ffff8880aed07468: ffff8880aed07490 (0xffff8880aed07490) ffff8880aed07470: 0000000000000008 (0x8) ffff8880aed07478: ffff888095859280 (0xffff888095859280) ffff8880aed07480: ffff8880a1af16c0 (0xffff8880a1af16c0) ffff8880aed07488: ffff888095859280 (0xffff888095859280) ffff8880aed07490: 0000000000000000 ... ffff8880aed07498: ffff8880aed074c0 (0xffff8880aed074c0) ffff8880aed074a0: ffffffff851787f5 (sock_queue_rcv_skb+0x25/0x50) ffff8880aed074a8: ffff888095859280 (0xffff888095859280) ffff8880aed074b0: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed074b8: ffff8880a1af16c0 (0xffff8880a1af16c0) ffff8880aed074c0: ffff8880aed07500 (0xffff8880aed07500) ffff8880aed074c8: ffffffff85aa6ec5 (packet_rcv_spkt+0x405/0x560) ffff8880aed074d0: fffffbfff0fe2cc8 (0xfffffbfff0fe2cc8) ffff8880aed074d8: ffffffff85aa6ac0 (packet_mmap+0x520/0x520) ffff8880aed074e0: ffff8880a1af1e80 (0xffff8880a1af1e80) ffff8880aed074e8: dffffc0000000000 (0xdffffc0000000000) ffff8880aed074f0: ffff888095859358 (0xffff888095859358) ffff8880aed074f8: ffff888095859280 (0xffff888095859280) ffff8880aed07500: ffff8880aed07580 (0xffff8880aed07580) ffff8880aed07508: ffffffff851d6a78 (dev_queue_xmit_nit+0x6d8/0x940) ffff8880aed07510: ffff8880a94abe00 (0xffff8880a94abe00) ffff8880aed07518: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed07520: ffff888081dc0dc0 (0xffff888081dc0dc0) ffff8880aed07528: ffff888081dc0ebc (0xffff888081dc0ebc) ffff8880aed07530: ffffed10152957c0 (0xffffed10152957c0) ffff8880aed07538: ffff888095859344 (0xffff888095859344) ffff8880aed07540: ffff8880a164ea10 (0xffff8880a164ea10) ffff8880aed07548: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07550: ffff8880a1af1e80 (0xffff8880a1af1e80) ffff8880aed07558: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07560: dffffc0000000000 (0xdffffc0000000000) ffff8880aed07568: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed07570: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed07578: ffff8880aed07668 (0xffff8880aed07668) ffff8880aed07580: ffff8880aed075f8 (0xffff8880aed075f8) ffff8880aed07588: ffffffff851df5d7 (dev_hard_start_xmit+0xa7/0x8b0) ffff8880aed07590: ffff8880aed07648 (0xffff8880aed07648) ffff8880aed07598: ffffed10142c9d42 (0xffffed10142c9d42) ffff8880aed075a0: ffff8880a164ea10 (0xffff8880a164ea10) ffff8880aed075a8: ffff8880a164eb60 (0xffff8880a164eb60) ffff8880aed075b0: ffff8880a1b62100 (0xffff8880a1b62100) ffff8880aed075b8: ffff8880a1b62180 (0xffff8880a1b62180) ffff8880aed075c0: 0000000000000000 ... ffff8880aed075c8: ffff8880a1b62180 (0xffff8880a1b62180) ffff8880aed075d0: ffff8880a1b62180 (0xffff8880a1b62180) ffff8880aed075d8: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed075e0: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed075e8: ffff8880826d80e0 (0xffff8880826d80e0) ffff8880aed075f0: ffff8880aed07668 (0xffff8880aed07668) ffff8880aed075f8: ffff8880aed07690 (0xffff8880aed07690) ffff8880aed07600: ffffffff852bf64a (sch_direct_xmit+0x27a/0x550) ffff8880aed07608: ffff8880a1b62248 (0xffff8880a1b62248) ffff8880aed07610: ffff8880a164ea50 (0xffff8880a164ea50) ffff8880aed07618: 1ffff11015da0ec5 (0x1ffff11015da0ec5) ffff8880aed07620: ffff8880826d8040 (0xffff8880826d8040) ffff8880aed07628: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07630: ffffffff87bcae92 (ORMASK+0x103cd2/0x13dba0) ffff8880aed07638: ffffffff852bf3d0 (dev_watchdog+0x750/0x750) ffff8880aed07640: 0000000066417181 (0x66417181) ffff8880aed07648: 0000000000000010 (0x10) ffff8880aed07650: 0000000000000282 (0x282) ffff8880aed07658: 0000000000000000 ... ffff8880aed07660: ffff8880826d80e0 (0xffff8880826d80e0) ffff8880aed07668: ffff8880826d80e0 (0xffff8880826d80e0) ffff8880aed07670: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07678: ffff8880826d8040 (0xffff8880826d8040) ffff8880aed07680: ffff8880a1b62180 (0xffff8880a1b62180) ffff8880aed07688: ffff8880826d8128 (0xffff8880826d8128) ffff8880aed07690: ffff8880aed077f0 (0xffff8880aed077f0) ffff8880aed07698: ffffffff851e1c4e (__dev_queue_xmit+0x1b6e/0x25e0) ffff8880aed076a0: dffffc0000000000 (0xdffffc0000000000) ffff8880aed076a8: ffff8880aed076f0 (0xffff8880aed076f0) ffff8880aed076b0: ffffffff8147b311 (mark_held_locks+0xb1/0x100) ffff8880aed076b8: ffff8880aed1f140 (0xffff8880aed1f140) ffff8880aed076c0: ffff8880a94abec0 (0xffff8880a94abec0) ffff8880aed076c8: ffff8880a94abe10 (0xffff8880a94abe10) ffff8880aed076d0: ffff8880826d8130 (0xffff8880826d8130) ffff8880aed076d8: 0000000000000000 ... ffff8880aed076e0: 1ffff11015da0ee0 (0x1ffff11015da0ee0) ffff8880aed076e8: ffff8880a94abeb8 (0xffff8880a94abeb8) ffff8880aed076f0: ffff888000000001 (0xffff888000000001) ffff8880aed076f8: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed07700: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07708: ffffffff87bc3b38 (ORMASK+0xfc978/0x13dba0) ffff8880aed07710: ffffffff851e00e0 (netdev_pick_tx+0x300/0x300) ffff8880aed07718: ffffffff81004236 (trace_hardirqs_on_thunk+0x1a/0x1c) ffff8880aed07720: 0000000000000001 (0x1) ffff8880aed07728: ffff88821fff7050 (0xffff88821fff7050) ffff8880aed07730: ffff8882fffffff4 (0xffff8882fffffff4) ffff8880aed07738: 000000952985291a (0x952985291a) ffff8880aed07740: 0000000000000000 ... ffff8880aed07748: 1ffffffff0f815ad (0x1ffffffff0f815ad) ffff8880aed07750: 0000000000000000 ... ffff8880aed07758: ffffffff87044b00 (hex_asc+0x9a0/0xa60) ffff8880aed07760: ffff8880553acd8c (0xffff8880553acd8c) ffff8880aed07768: ffff8880aed07779 (0xffff8880aed07779) ffff8880aed07770: ffffffff86800979 (retint_kernel+0x2d/0x2d) ffff8880aed07778: ffff8880a87bcf70 (0xffff8880a87bcf70) ffff8880aed07780: 0000000000000206 (0x206) ffff8880aed07788: dffffc0000000000 (0xdffffc0000000000) ffff8880aed07790: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07798: ffff8880aed078e0 (0xffff8880aed078e0) ffff8880aed077a0: ffff8880a87bcdc0 (0xffff8880a87bcdc0) ffff8880aed077a8: 0000000000000000 ... ffff8880aed077b8: ffff8880553acef8 (0xffff8880553acef8) ffff8880aed077c0: ffff888081dc0eae (0xffff888081dc0eae) ffff8880aed077c8: ffff8880aed07808 (0xffff8880aed07808) ffff8880aed077d0: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed077d8: ffff888081dc0dc0 (0xffff888081dc0dc0) ffff8880aed077e0: ffff8880a87bcf68 (0xffff8880a87bcf68) ffff8880aed077e8: 0000000000000000 ... ffff8880aed077f0: ffff8880aed07810 (0xffff8880aed07810) ffff8880aed077f8: ffffffff851e26d8 (dev_queue_xmit+0x18/0x20) ffff8880aed07800: ffffffff851e26d8 (dev_queue_xmit+0x18/0x20) ffff8880aed07808: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07810: ffff8880aed078e0 (0xffff8880aed078e0) ffff8880aed07818: ffffffff8569de08 (ip_finish_output2+0xde8/0x14a0) ffff8880aed07820: 000000000000000a (0xa) ffff8880aed07828: ffff8880553acf28 (0xffff8880553acf28) ffff8880aed07830: ffff8880a94abec0 (0xffff8880a94abec0) ffff8880aed07838: ffff888000000010 (0xffff888000000010) ffff8880aed07840: ffff8880a87bcf60 (0xffff8880a87bcf60) ffff8880aed07848: 1ffffffff0fe2cca (0x1ffffffff0fe2cca) ffff8880aed07850: fffffbfff0fe2cc8 (0xfffffbfff0fe2cc8) ffff8880aed07858: ffff88800000000e (0xffff88800000000e) ffff8880aed07860: ffff8880a94abeb8 (0xffff8880a94abeb8) ffff8880aed07868: 1ffff11015da0f0e (0x1ffff11015da0f0e) ffff8880aed07870: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07878: ffffffff87bd5b17 (ORMASK+0x10e957/0x13dba0) ffff8880aed07880: ffffffff8569d020 (ip_copy_metadata+0x9b0/0x9b0) ffff8880aed07888: ffffffff87f83d60 (rcu_bh_lock_map+0x40/0x40) ffff8880aed07890: ffff88800100800a (0xffff88800100800a) ffff8880aed07898: ffffffff888d8f80 (max_gen_ptrs+0x40/0x40) ffff8880aed078a0: 0000000000000001 (0x1) ffff8880aed078a8: ffff8880aed078d8 (0xffff8880aed078d8) ffff8880aed078b0: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed078b8: ffff8880aed078f8 (0xffff8880aed078f8) ffff8880aed078c0: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed078c8: ffff888081dc1080 (0xffff888081dc1080) ffff8880aed078d0: ffffffff888d8f80 (max_gen_ptrs+0x40/0x40) ffff8880aed078d8: 00000000000005b4 (0x5b4) ffff8880aed078e0: ffff8880aed07930 (0xffff8880aed07930) ffff8880aed078e8: ffffffff856a0d9d (ip_finish_output+0x56d/0xc60) ffff8880aed078f0: ffffffff856a0d9d (ip_finish_output+0x56d/0xc60) ffff8880aed078f8: ffff8880aed079d8 (0xffff8880aed079d8) ffff8880aed07900: ffff888091ed0000 (0xffff888091ed0000) ffff8880aed07908: 1ffff11015da0f2b (0x1ffff11015da0f2b) ffff8880aed07910: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07918: ffffffff888d8f80 (max_gen_ptrs+0x40/0x40) ffff8880aed07920: 0000000000000001 (0x1) ffff8880aed07928: ffff8880aed079d8 (0xffff8880aed079d8) ffff8880aed07930: ffff8880aed07a00 (0xffff8880aed07a00) ffff8880aed07938: ffffffff856a52f6 (ip_output+0x1e6/0x590) ffff8880aed07940: ffff88809b594300 (0xffff88809b594300) ffff8880aed07948: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07950: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed07958: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07960: ffffffff87b7e854 (ORMASK+0xb7694/0x13dba0) ffff8880aed07968: ffffffff856a5110 (ip_mc_output+0xd40/0xd40) ffff8880aed07970: ffff8880aed079c0 (0xffff8880aed079c0) ffff8880aed07978: ffffffff81475186 (__lock_is_held+0xb6/0x140) ffff8880aed07980: ffffffff830df56c (check_preemption_disabled+0x3c/0x250) ffff8880aed07988: ffff880200000004 (0xffff880200000004) ffff8880aed07990: 0000000000000000 ... ffff8880aed07998: ffff8880a164e980 (0xffff8880a164e980) ffff8880aed079a0: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed079a8: ffffffff888d8f80 (max_gen_ptrs+0x40/0x40) ffff8880aed079b0: ffffffff856a0830 (ip_fragment.constprop.0+0x200/0x200) ffff8880aed079b8: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed079c0: ffff8880aed079f0 (0xffff8880aed079f0) ffff8880aed079c8: 0000000000000282 (0x282) ffff8880aed079d0: ffffffff814db842 (rcu_lockdep_current_cpu_online+0xf2/0x140) ffff8880aed079d8: ffff8880a94abe40 (0xffff8880a94abe40) ffff8880aed079e0: ffff888091ed0500 (0xffff888091ed0500) ffff8880aed079e8: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed079f0: ffffffff888d8f80 (max_gen_ptrs+0x40/0x40) ffff8880aed079f8: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07a00: ffff8880aed07a38 (0xffff8880aed07a38) ffff8880aed07a08: ffffffff856a1d47 (ip_local_out+0x97/0x170) ffff8880aed07a10: 0000000000000000 ... ffff8880aed07a18: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07a20: 0000000000000001 (0x1) ffff8880aed07a28: ffff888081dc0ebc (0xffff888081dc0ebc) ffff8880aed07a30: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07a38: ffff8880aed07ab0 (0xffff8880aed07ab0) ffff8880aed07a40: ffffffff856a3097 (ip_queue_xmit+0x7d7/0x1b10) ffff8880aed07a48: 0000000000000246 (0x246) ffff8880aed07a50: ffff8880aed07a68 (0xffff8880aed07a68) ffff8880aed07a58: ffffffff857351f0 (__tcp_v4_send_check+0x1c0/0x360) ffff8880aed07a60: ffffffff00000040 (0xffffffff00000040) ffff8880aed07a68: ffff8880a94abeb8 (0xffff8880a94abeb8) ffff8880aed07a70: ffffffff888d8f80 (max_gen_ptrs+0x40/0x40) ffff8880aed07a78: ffff88809e9d2f38 (0xffff88809e9d2f38) ffff8880aed07a80: ffff888081dc0dc0 (0xffff888081dc0dc0) ffff8880aed07a88: ffffffff875e6460 (tcp_sock_ipv4_specific+0x40/0x40) ffff8880aed07a90: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07a98: ffff8880a94abde8 (0xffff8880a94abde8) ffff8880aed07aa0: 0000000000000000 ... ffff8880aed07aa8: ffff88809e9d30f8 (0xffff88809e9d30f8) ffff8880aed07ab0: ffff8880aed07bf0 (0xffff8880aed07bf0) ffff8880aed07ab8: ffffffff8570e1f1 (__tcp_transmit_skb+0x1721/0x2fd0) ffff8880aed07ac0: ffff888081dc0edc (0xffff888081dc0edc) ffff8880aed07ac8: ffff88809e9d3258 (0xffff88809e9d3258) ffff8880aed07ad0: ffff88809e9d31c0 (0xffff88809e9d31c0) ffff8880aed07ad8: ffff88809e9d31c8 (0xffff88809e9d31c8) ffff8880aed07ae0: ffff88809e9d3310 (0xffff88809e9d3310) ffff8880aed07ae8: ffff8880a94abeb4 (0xffff8880a94abeb4) ffff8880aed07af0: ffff8880a94abe08 (0xffff8880a94abe08) ffff8880aed07af8: ffff88809e9d31cc (0xffff88809e9d31cc) ffff8880aed07b00: 1ffff11015da0f69 (0x1ffff11015da0f69) ffff8880aed07b08: ffff888000000007 (0xffff888000000007) ffff8880aed07b10: ffff8880a94abe10 (0xffff8880a94abe10) ffff8880aed07b18: ffff8880a94abe68 (0xffff8880a94abe68) ffff8880aed07b20: ffff8880a94abeb8 (0xffff8880a94abeb8) ffff8880aed07b28: 1cd61960000005b4 (0x1cd61960000005b4) ffff8880aed07b30: ffff8880a94abe20 (0xffff8880a94abe20) ffff8880aed07b38: ffffffff00000020 (0xffffffff00000020) ffff8880aed07b40: ffff8880a94abd00 (0xffff8880a94abd00) ffff8880aed07b48: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07b50: ffffffff87bd62f0 (ORMASK+0x10f130/0x13dba0) ffff8880aed07b58: ffffffff8570cad0 (__tcp_select_window+0x6e0/0x6e0) ffff8880aed07b60: ffff8880aed07b98 (0xffff8880aed07b98) ffff8880aed07b68: 0000000000000000 ... ffff8880aed07b70: ffffffff87bd70c8 (ORMASK+0x10ff08/0x13dba0) ffff8880aed07b78: ffffffff85793c20 (ipip_gro_complete+0x100/0x100) ffff8880aed07b80: ffff8880553acd8c (0xffff8880553acd8c) ffff8880aed07b88: 0000000000000002 (0x2) ffff8880aed07b90: 0000000000000000 ... ffff8880aed07b98: 13c20c6776e9be89 (0x13c20c6776e9be89) ffff8880aed07ba0: 0000000000000000 ... ffff8880aed07ba8: 0000000025e29068 (0x25e29068) ffff8880aed07bb0: ffff8880a94abd90 (0xffff8880a94abd90) ffff8880aed07bb8: ffff8880aed07ca8 (0xffff8880aed07ca8) ffff8880aed07bc0: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07bc8: ffff888081dc0dc0 (0xffff888081dc0dc0) ffff8880aed07bd0: ffff88809e9d2ab0 (0xffff88809e9d2ab0) ffff8880aed07bd8: ffff8880a94abd00 (0xffff8880a94abd00) ffff8880aed07be0: ffffffff888d8f80 (max_gen_ptrs+0x40/0x40) ffff8880aed07be8: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07bf0: ffff8880aed07ca8 (0xffff8880aed07ca8) ffff8880aed07bf8: ffffffff85719a76 (__tcp_retransmit_skb+0x536/0x1bd0) ffff8880aed07c00: ffff8880a94abd00 (0xffff8880a94abd00) ffff8880aed07c08: ffff88809e9d2cc8 (0xffff88809e9d2cc8) ffff8880aed07c10: ffffffffffffff10 (0xffffffffffffff10) ffff8880aed07c18: ffffed1013d3a599 (0xffffed1013d3a599) ffff8880aed07c20: ffff8880a94abd3b (0xffff8880a94abd3b) ffff8880aed07c28: ffff88809e9d2cd0 (0xffff88809e9d2cd0) ffff8880aed07c30: ffff8880a94aba80 (0xffff8880a94aba80) ffff8880aed07c38: ffff88809e9d2cd0 (0xffff88809e9d2cd0) ffff8880aed07c40: ffff8880a94abd30 (0xffff8880a94abd30) ffff8880aed07c48: ffff88809e9d320c (0xffff88809e9d320c) ffff8880aed07c50: ffff88809e9d2cb8 (0xffff88809e9d2cb8) ffff8880aed07c58: ffff8880a94abd80 (0xffff8880a94abd80) ffff8880aed07c60: ffff88809e9d31e0 (0xffff88809e9d31e0) ffff8880aed07c68: ffff8880a94abd38 (0xffff8880a94abd38) ffff8880aed07c70: 0000000000000001 (0x1) ffff8880aed07c78: 00000000aed07c88 (0xaed07c88) ffff8880aed07c80: ffff88809e9d3250 (0xffff88809e9d3250) ffff8880aed07c88: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07c90: ffff8880a94abd00 (0xffff8880a94abd00) ffff8880aed07c98: 0000000000000580 (0x580) ffff8880aed07ca0: ffff88809e9d2cd0 (0xffff88809e9d2cd0) ffff8880aed07ca8: ffff8880aed07ce8 (0xffff8880aed07ce8) ffff8880aed07cb0: ffffffff8571b5cf (tcp_send_loss_probe+0x4bf/0x820) ffff8880aed07cb8: 00000580553acdc0 (0x580553acdc0) ffff8880aed07cc0: 0000000025e319d5 (0x25e319d5) ffff8880aed07cc8: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07cd0: ffff88809e9d311a (0xffff88809e9d311a) ffff8880aed07cd8: 000000010000831c (0x10000831c) ffff8880aed07ce0: 0000000000000001 (0x1) ffff8880aed07ce8: ffff8880aed07d18 (0xffff8880aed07d18) ffff8880aed07cf0: ffffffff85724e88 (tcp_write_timer_handler+0x4a8/0x7e0) ffff8880aed07cf8: ffff88809e9d2b00 (0xffff88809e9d2b00) ffff8880aed07d00: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07d08: ffff88809e9d2b08 (0xffff88809e9d2b08) ffff8880aed07d10: ffff8880aed239c0 (0xffff8880aed239c0) ffff8880aed07d18: ffff8880aed07d40 (0xffff8880aed07d40) ffff8880aed07d20: ffffffff85725296 (tcp_write_timer+0xd6/0x180) ffff8880aed07d28: ffff88809e9d3048 (0xffff88809e9d3048) ffff8880aed07d30: 0000000000000101 (0x101) ffff8880aed07d38: ffff8880aed07dd0 (0xffff8880aed07dd0) ffff8880aed07d40: ffff8880aed07df8 (0xffff8880aed07df8) ffff8880aed07d48: ffffffff814f6791 (call_timer_fn+0x161/0x670) ffff8880aed07d50: ffff8880aed07d90 (0xffff8880aed07d90) ffff8880aed07d58: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07d60: 1ffff11015da0fae (0x1ffff11015da0fae) ffff8880aed07d68: ffffffff857251c0 (tcp_write_timer_handler+0x7e0/0x7e0) ffff8880aed07d70: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07d78: ffffffff87acedd6 (ORMASK+0x7c16/0x13dba0) ffff8880aed07d80: ffffffff814f6630 (__next_timer_interrupt+0x140/0x140) ffff8880aed07d88: ffff8880553acea8 (0xffff8880553acea8) ffff8880aed07d90: ffffffff8a531820 (__key.65812+0x40/0x40) ffff8880aed07d98: ffffffff89603520 (lock_classes+0x6cc60/0x29fee0) ffff8880aed07da0: 0000000000000000 ... ffff8880aed07da8: ffffffff875e3ca0 (__func__.5235+0x500/0x8c0) ffff8880aed07db0: ffff8880553ace88 (0xffff8880553ace88) ffff8880aed07db8: ffff8880553acdbc (0xffff8880553acdbc) ffff8880aed07dc0: ffffffffffffff10 (0xffffffffffffff10) ffff8880aed07dc8: ffffffff8668e104 (_raw_spin_unlock_irq+0x54/0x90) ffff8880aed07dd0: ffff88809e9d3050 (0xffff88809e9d3050) ffff8880aed07dd8: ffff88809e9d3048 (0xffff88809e9d3048) ffff8880aed07de0: ffff88809e9d2a80 (0xffff88809e9d2a80) ffff8880aed07de8: ffff8880aed239c0 (0xffff8880aed239c0) ffff8880aed07df0: dffffc0000000000 (0xdffffc0000000000) ffff8880aed07df8: ffff8880aed07f00 (0xffff8880aed07f00) ffff8880aed07e00: ffffffff814fc057 (run_timer_softirq+0x5b7/0x1520) ffff8880aed07e08: ffffffff857251c0 (tcp_write_timer_handler+0x7e0/0x7e0) ffff8880aed07e10: ffff8880aed07e78 (0xffff8880aed07e78) ffff8880aed07e18: 1ffff11015da0fcb (0x1ffff11015da0fcb) ffff8880aed07e20: ffffed1015da473f (0xffffed1015da473f) ffff8880aed07e28: ffff8880aed239f8 (0xffff8880aed239f8) ffff8880aed07e30: fffffbfff0fc1200 (0xfffffbfff0fc1200) ffff8880aed07e38: ffffed1015da0fcf (0xffffed1015da0fcf) ffff8880aed07e40: ffff8880aed07e78 (0xffff8880aed07e78) ffff8880aed07e48: 0000000087f83ce0 (0x87f83ce0) ffff8880aed07e50: ffff8880aed23a00 (0xffff8880aed23a00) ffff8880aed07e58: 0000000041b58ab3 (0x41b58ab3) ffff8880aed07e60: ffffffff87aceeca (ORMASK+0x7d0a/0x13dba0) ffff8880aed07e68: ffffffff814fbaa0 (add_timer+0xae0/0xae0) ffff8880aed07e70: ffffffff81475186 (__lock_is_held+0xb6/0x140) ffff8880aed07e78: ffff8880965ed850 (0xffff8880965ed850) ffff8880aed07e80: ffff8880553acdb8 (0xffff8880553acdb8) ffff8880aed07e88: ffff8880553acdc0 (0xffff8880553acdc0) ffff8880aed07e90: 0000000000000282 (0x282) ffff8880aed07e98: ffffffff87f83ce0 (rcu_callback_map+0x40/0x40) ffff8880aed07ea0: ffff8880553ac540 (0xffff8880553ac540) ffff8880aed07ea8: 0000000000000001 (0x1) ffff8880aed07eb0: dffffc0000000000 (0xdffffc0000000000) ffff8880aed07eb8: ffff8880aed07ee8 (0xffff8880aed07ee8) ffff8880aed07ec0: 0000000000000282 (0x282) ffff8880aed07ec8: ffffffff814db842 (rcu_lockdep_current_cpu_online+0xf2/0x140) ffff8880aed07ed0: 0000000000000003 (0x3) ffff8880aed07ed8: ffffffff87e09108 (softirq_vec+0x8/0x80) ffff8880aed07ee0: 0000000000000002 (0x2) ffff8880aed07ee8: 0000000000000001 (0x1) ffff8880aed07ef0: 0000000000000001 (0x1) ffff8880aed07ef8: dffffc0000000000 (0xdffffc0000000000) ffff8880aed07f00: ffff8880aed07f98 (0xffff8880aed07f98) ffff8880aed07f08: ffffffff86a00244 (__do_softirq+0x244/0x9a0) ffff8880aed07f10: ffffffff8121973e (sched_clock+0x2e/0x50) ffff8880aed07f18: 01ff888000404140 (0x1ff888000404140) ffff8880aed07f20: ffffed100aa758a8 (0xffffed100aa758a8) ffff8880aed07f28: ffff8880553ac540 (0xffff8880553ac540) ffff8880aed07f30: 000000010000831e (0x10000831e) ffff8880aed07f38: 0000000000000002 (0x2) ffff8880aed07f40: 0000000000000001 (0x1) ffff8880aed07f48: 0000000000000001 (0x1) ffff8880aed07f50: 0000000000000010 (0x10) ffff8880aed07f58: 000001010000000a (0x1010000000a) ffff8880aed07f60: ffffffff87e09100 (tasklist_lock+0x40/0x40) ffff8880aed07f68: 0000000200000002 (0x200000002) ffff8880aed07f70: ffff8880aed1f140 (0xffff8880aed1f140) ffff8880aed07f78: 0000000000000000 ... ffff8880aed07f98: ffff8880aed07fb0 (0xffff8880aed07fb0) ffff8880aed07fa0: ffffffff8138aa10 (irq_exit+0x160/0x1b0) ffff8880aed07fa8: ffff8880aed1f140 (0xffff8880aed1f140) ffff8880aed07fb0: ffff8880aed07fe8 (0xffff8880aed07fe8) ffff8880aed07fb8: ffffffff86804db6 (smp_apic_timer_interrupt+0x146/0x5e0) ffff8880aed07fc0: 0000000000000020 (0x20) ffff8880aed07fc8: 0000000000000000 ... ffff8880aed07fe8: ffff88804eb7f049 (0xffff88804eb7f049) ffff8880aed07ff0: ffffffff86801b06 (apic_timer_interrupt+0x96/0xa0) ffff8880aed07ff8: ffff88804eb7f048 (0xffff88804eb7f048) ffff88804eb7f048: ffff8880572e7520 (0xffff8880572e7520) ffff88804eb7f050: 0000000000000014 (0x14) ffff88804eb7f058: ffff88804eb7f240 (0xffff88804eb7f240) ffff88804eb7f060: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f068: ffff88804eb7f120 (0xffff88804eb7f120) ffff88804eb7f070: ffff88804eb7f1d0 (0xffff88804eb7f1d0) ffff88804eb7f078: ffff8880553ac540 (0xffff8880553ac540) ffff88804eb7f080: 0000000000000000 ... ffff88804eb7f088: 0000000000000006 (0x6) ffff88804eb7f090: 00000000667447d1 (0x667447d1) ffff88804eb7f098: 0000000000000020 (0x20) ffff88804eb7f0a0: 0000000000000000 ... ffff88804eb7f0b0: ffff8880572e7568 (0xffff8880572e7568) ffff88804eb7f0b8: ffff88804eb7f1a0 (0xffff88804eb7f1a0) ffff88804eb7f0c0: ffffffffffffff10 (0xffffffffffffff10) ffff88804eb7f0c8: ffffffff86646145 (memcmp+0x65/0xc0) ffff88804eb7f0d0: 0000000000000010 (0x10) ffff88804eb7f0d8: 0000000000000246 (0x246) ffff88804eb7f0e0: ffff88804eb7f0f8 (0xffff88804eb7f0f8) ffff88804eb7f0e8: 0000000000000018 (0x18) ffff88804eb7f0f0: ffff88804eb78000 (0xffff88804eb78000) ffff88804eb7f0f8: ffff88804eb80000 (0xffff88804eb80000) ffff88804eb7f100: 0000000000000000 ... ffff88804eb7f108: 00000000900dfbd4 (0x900dfbd4) ffff88804eb7f110: ffff88804eb7f188 (0xffff88804eb7f188) ffff88804eb7f118: ffff88804eb7f1a0 (0xffff88804eb7f1a0) ffff88804eb7f120: ffff88804eb7f178 (0xffff88804eb7f178) ffff88804eb7f128: ffffffff831dbe9c (depot_save_stack+0x11c/0x410) ffff88804eb7f130: 0000000001080020 (0x1080020) ffff88804eb7f138: 00000000000dfbd4 (0xdfbd4) ffff88804eb7f140: 00000000000000a0 (0xa0) ffff88804eb7f148: 0000000000000000 ... ffff88804eb7f150: ffff8880962e7028 (0xffff8880962e7028) ffff88804eb7f158: 0000000001080020 (0x1080020) ffff88804eb7f160: ffff8880962e7028 (0xffff8880962e7028) ffff88804eb7f168: 0000000000000000 ... ffff88804eb7f170: ffff8880a663adc0 (0xffff8880a663adc0) ffff88804eb7f178: ffff88804eb7f3a8 (0xffff88804eb7f3a8) ffff88804eb7f180: ffffffff818749b9 (save_stack+0xa9/0xd0) ffff88804eb7f188: 0000004000000014 (0x4000000014) ffff88804eb7f190: ffff88804eb7f1a0 (0xffff88804eb7f1a0) ffff88804eb7f198: 0000000000000000 ... ffff88804eb7f1a0: ffffffff8122e5b6 (save_stack_trace+0x16/0x20) ffff88804eb7f1a8: ffffffff81874955 (save_stack+0x45/0xd0) ffff88804eb7f1b0: ffffffff81874c2e (kasan_kmalloc+0xce/0xf0) ffff88804eb7f1b8: ffffffff818751ef (kasan_slab_alloc+0xf/0x20) ffff88804eb7f1c0: ffffffff8187012e (kmem_cache_alloc+0x12e/0x780) ffff88804eb7f1c8: ffffffff81c0c69c (__es_insert_extent+0x26c/0xe60) ffff88804eb7f1d0: ffffffff81c0fd20 (ext4_es_insert_extent+0x1f0/0x590) ffff88804eb7f1d8: ffffffff81c42341 (ext4_map_blocks+0xab1/0x17c0) ffff88804eb7f1e0: ffffffff81c50bfb (ext4_writepages+0x1afb/0x2fd0) ffff88804eb7f1e8: ffffffff8173e660 (do_writepages+0xd0/0x250) ffff88804eb7f1f0: ffffffff8170877e (__filemap_fdatawrite_range+0x24e/0x320) ffff88804eb7f1f8: ffffffff817089de (filemap_write_and_wait_range+0x3e/0xa0) ffff88804eb7f200: ffffffff8170f813 (generic_file_direct_write+0x333/0x430) ffff88804eb7f208: ffffffff8170fbcc (__generic_file_write_iter+0x2bc/0x5b0) ffff88804eb7f210: ffffffff81c1495c (ext4_file_write_iter+0x2ac/0xe90) ffff88804eb7f218: ffffffff818f43d7 (__vfs_write+0x4a7/0x6b0) ffff88804eb7f220: ffffffff818f4ae8 (vfs_write+0x198/0x500) ffff88804eb7f228: ffffffff818f529d (SyS_write+0xfd/0x230) ffff88804eb7f230: ffffffff81007778 (do_syscall_64+0x1e8/0x640) ffff88804eb7f238: ffffffff86800086 (entry_SYSCALL_64_after_hwframe+0x42/0xb7) ffff88804eb7f240: ffffffffffffffff (0xffffffffffffffff) ffff88804eb7f248: 0000000000000000 ... ffff88804eb7f260: ffff88804eb7f280 (0xffff88804eb7f280) ffff88804eb7f268: ffffffff8147b760 (trace_hardirqs_on_caller+0x400/0x590) ffff88804eb7f270: 0000000000000000 ... ffff88804eb7f280: ffff88804eb7f2d8 (0xffff88804eb7f2d8) ffff88804eb7f288: ffffffff81004236 (trace_hardirqs_on_thunk+0x1a/0x1c) ffff88804eb7f290: 0000000000000001 (0x1) ffff88804eb7f298: ffff88821fff7050 (0xffff88821fff7050) ffff88804eb7f2a0: ffff88821fff7048 (0xffff88821fff7048) ffff88804eb7f2a8: 000000952969e1cd (0x952969e1cd) ffff88804eb7f2b0: ffff88804eb7f2e8 (0xffff88804eb7f2e8) ffff88804eb7f2b8: 1ffffffff0f815ad (0x1ffffffff0f815ad) ffff88804eb7f2c0: 0000000000000000 ... ffff88804eb7f2c8: ffffffff830df56c (check_preemption_disabled+0x3c/0x250) ffff88804eb7f2d0: ffff8880553acd8c (0xffff8880553acd8c) ffff88804eb7f2d8: ffff88804eb7f2e9 (0xffff88804eb7f2e9) ffff88804eb7f2e0: ffffffff86800979 (retint_kernel+0x2d/0x2d) ffff88804eb7f2e8: ffff8880a663adc0 (0xffff8880a663adc0) ffff88804eb7f2f0: ffff8880962e7027 (0xffff8880962e7027) ffff88804eb7f2f8: ffff8880962e7000 (0xffff8880962e7000) ffff88804eb7f300: 0000000000000028 (0x28) ffff88804eb7f308: ffff88804eb7f3a8 (0xffff88804eb7f3a8) ffff88804eb7f310: ffffed1012c5ce05 (0xffffed1012c5ce05) ffff88804eb7f318: 0000000000000000 ... ffff88804eb7f328: ffffed1012c5ce00 (0xffffed1012c5ce00) ffff88804eb7f330: 0000000000002e4f (0x2e4f) ffff88804eb7f338: 1ffff11012c5ce00 (0x1ffff11012c5ce00) ffff88804eb7f340: 0000000000000000 ... ffff88804eb7f348: 0000000000000005 (0x5) ffff88804eb7f350: 0000000000000000 ... ffff88804eb7f358: ffffed1012c5ce05 (0xffffed1012c5ce05) ffff88804eb7f360: ffffffffffffff10 (0xffffffffffffff10) ffff88804eb7f368: ffffffff8665cf4b (memset_erms+0xb/0x10) ffff88804eb7f370: 0000000000000010 (0x10) ffff88804eb7f378: 0000000000000206 (0x206) ffff88804eb7f380: ffff88804eb7f390 (0xffff88804eb7f390) ffff88804eb7f388: 0000000000000018 (0x18) ffff88804eb7f390: ffffffff81874aa5 (kasan_unpoison_shadow+0x35/0x50) ffff88804eb7f398: ffff8880962e7028 (0xffff8880962e7028) ffff88804eb7f3a0: 0000000001080020 (0x1080020) ffff88804eb7f3a8: ffff88804eb7f3e8 (0xffff88804eb7f3e8) ffff88804eb7f3b0: ffffffff81874c2e (kasan_kmalloc+0xce/0xf0) ffff88804eb7f3b8: ffff8880962e7027 (0xffff8880962e7027) ffff88804eb7f3c0: 0000000001080020 (0x1080020) ffff88804eb7f3c8: ffff8880962e7000 (0xffff8880962e7000) ffff88804eb7f3d0: ffff8880a663adc0 (0xffff8880a663adc0) ffff88804eb7f3d8: ffff8880a663adc0 (0xffff8880a663adc0) ffff88804eb7f3e0: 0000000001080020 (0x1080020) ffff88804eb7f3e8: ffff88804eb7f3f8 (0xffff88804eb7f3f8) ffff88804eb7f3f0: ffffffff818751ef (kasan_slab_alloc+0xf/0x20) ffff88804eb7f3f8: ffff88804eb7f470 (0xffff88804eb7f470) ffff88804eb7f400: ffffffff8187012e (kmem_cache_alloc+0x12e/0x780) ffff88804eb7f408: ffff8880963ecc24 (0xffff8880963ecc24) ffff88804eb7f410: ffff8880963ecc20 (0xffff8880963ecc20) ffff88804eb7f418: 9000000000030101 (0x9000000000030101) ffff88804eb7f420: ffff888000000009 (0xffff888000000009) ffff88804eb7f428: ffff88804eb7f470 (0xffff88804eb7f470) ffff88804eb7f430: ffffffff81c0be1e (ext4_es_can_be_merged+0x16e/0x230) ffff88804eb7f438: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7f440: 0000000000000282 (0x282) ffff88804eb7f448: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f450: ffff8880963ecc08 (0xffff8880963ecc08) ffff88804eb7f458: 0800000000030101 (0x800000000030101) ffff88804eb7f460: ffff8880963ecc18 (0xffff8880963ecc18) ffff88804eb7f468: 0000000000000001 (0x1) ffff88804eb7f470: ffff88804eb7f4e0 (0xffff88804eb7f4e0) ffff88804eb7f478: ffffffff81c0c69c (__es_insert_extent+0x26c/0xe60) ffff88804eb7f480: ffff88804eb7f568 (0xffff88804eb7f568) ffff88804eb7f488: ffff88804ae99af8 (0xffff88804ae99af8) ffff88804eb7f490: ffff88804eb7f550 (0xffff88804eb7f550) ffff88804eb7f498: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f4a0: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f4a8: ffffed1009d6fead (0xffffed1009d6fead) ffff88804eb7f4b0: ffff888000000000 (0xffff888000000000) ffff88804eb7f4b8: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f4c0: 0000000000000000 ... ffff88804eb7f4c8: ffff88804eb7f550 (0xffff88804eb7f550) ffff88804eb7f4d0: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f4d8: ffff88804eb7f5a0 (0xffff88804eb7f5a0) ffff88804eb7f4e0: ffff88804eb7f5c8 (0xffff88804eb7f5c8) ffff88804eb7f4e8: ffffffff81c0fd20 (ext4_es_insert_extent+0x1f0/0x590) ffff88804eb7f4f0: 0000000000000000 ... ffff88804eb7f500: ffff88804ae996d8 (0xffff88804ae996d8) ffff88804eb7f508: ffff88804ae99b08 (0xffff88804ae99b08) ffff88804eb7f510: 1ffff11009d6fea4 (0x1ffff11009d6fea4) ffff88804eb7f518: ffffed10095d32db (0xffffed10095d32db) ffff88804eb7f520: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7f528: ffffffff87aea2be (ORMASK+0x230fe/0x13dba0) ffff88804eb7f530: ffffffff81c0fb30 (ext4_es_find_delayed_extent_range+0x960/0x960) ffff88804eb7f538: 0000000000000000 ... ffff88804eb7f540: ffffffff81c420b9 (ext4_map_blocks+0x829/0x17c0) ffff88804eb7f548: 0000000000000000 ... ffff88804eb7f550: 0000000000000282 (0x282) ffff88804eb7f558: 0000000000000000 ... ffff88804eb7f560: 0000000000000001 (0x1) ffff88804eb7f568: 0000000100000000 (0x100000000) ffff88804eb7f570: 0800000000030101 (0x800000000030101) ffff88804eb7f578: ffff88804ae995b0 (0xffff88804ae995b0) ffff88804eb7f580: 0000000000000001 (0x1) ffff88804eb7f588: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f590: ffff88804eb7f6b8 (0xffff88804eb7f6b8) ffff88804eb7f598: 0000000000000000 ... ffff88804eb7f5a0: ffff88804eb7f878 (0xffff88804eb7f878) ffff88804eb7f5a8: 0000000000000001 (0x1) ffff88804eb7f5b0: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f5b8: 0000000000000001 (0x1) ffff88804eb7f5c0: 0000000000000000 ... ffff88804eb7f5c8: ffff88804eb7f6e0 (0xffff88804eb7f6e0) ffff88804eb7f5d0: ffffffff81c42341 (ext4_map_blocks+0xab1/0x17c0) ffff88804eb7f5d8: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7f5e0: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7f5e8: ffffffff00000000 (0xffffffff00000000) ffff88804eb7f5f0: ffff88804ae99510 (0xffff88804ae99510) ffff88804eb7f5f8: ffff88804ae995b0 (0xffff88804ae995b0) ffff88804eb7f600: ffff888000000001 (0xffff888000000001) ffff88804eb7f608: 0000000000000001 (0x1) ffff88804eb7f610: 1ffff11009d6fec7 (0x1ffff11009d6fec7) ffff88804eb7f618: ffff88804eb7f880 (0xffff88804eb7f880) ffff88804eb7f620: ffff88804eb7f884 (0xffff88804eb7f884) ffff88804eb7f628: ffff88804eb7f888 (0xffff88804eb7f888) ffff88804eb7f630: 000004210aa759b7 (0x4210aa759b7) ffff88804eb7f638: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7f640: ffffffff87aeab84 (ORMASK+0x239c4/0x13dba0) ffff88804eb7f648: ffffffff81c41890 (ext4_issue_zeroout+0x160/0x160) ffff88804eb7f650: ffffffff81475186 (__lock_is_held+0xb6/0x140) ffff88804eb7f658: ffffffff830df56c (check_preemption_disabled+0x3c/0x250) ffff88804eb7f660: ffff8880553acdb8 (0xffff8880553acdb8) ffff88804eb7f668: ffff8880553acdc0 (0xffff8880553acdc0) ffff88804eb7f670: 0000000000000282 (0x282) ffff88804eb7f678: ffffffff87f83ce0 (rcu_callback_map+0x40/0x40) ffff88804eb7f680: 0000000900000000 (0x900000000) ffff88804eb7f688: 9000000000030101 (0x9000000000030101) ffff88804eb7f690: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f698: ffff88804eb7f6c8 (0xffff88804eb7f6c8) ffff88804eb7f6a0: 0000000000000282 (0x282) ffff88804eb7f6a8: ffffffff814db842 (rcu_lockdep_current_cpu_online+0xf2/0x140) ffff88804eb7f6b0: 0000000000000003 (0x3) ffff88804eb7f6b8: 0000000000000000 ... ffff88804eb7f6c0: ffff88804eb7f878 (0xffff88804eb7f878) ffff88804eb7f6c8: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f6d0: 0000000000000421 (0x421) ffff88804eb7f6d8: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f6e0: ffff88804eb7f910 (0xffff88804eb7f910) ffff88804eb7f6e8: ffffffff81c50bfb (ext4_writepages+0x1afb/0x2fd0) ffff88804eb7f6f0: 0000000000000000 ... ffff88804eb7f6f8: ffff88804eb7f7a8 (0xffff88804eb7f7a8) ffff88804eb7f700: ffff88804eb7fa60 (0xffff88804eb7fa60) ffff88804eb7f708: 0000000000000000 ... ffff88804eb7f710: fffffbfff115c219 (0xfffffbfff115c219) ffff88804eb7f718: fffffbfff115c221 (0xfffffbfff115c221) ffff88804eb7f720: ffff888000000000 (0xffff888000000000) ffff88804eb7f728: ffffed1009d6ff4c (0xffffed1009d6ff4c) ffff88804eb7f730: ffff88804ae996d8 (0xffff88804ae996d8) ffff88804eb7f738: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f740: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f748: 0000000000000000 ... ffff88804eb7f750: ffffed1009d6ff4c (0xffffed1009d6ff4c) ffff88804eb7f758: ffff88804eb7fa64 (0xffff88804eb7fa64) ffff88804eb7f760: ffff88804ae99510 (0xffff88804ae99510) ffff88804eb7f768: ffff88804eb7f890 (0xffff88804eb7f890) ffff88804eb7f770: ffff88804eb7f800 (0xffff88804eb7f800) ffff88804eb7f778: ffff88804eb7f850 (0xffff88804eb7f850) ffff88804eb7f780: ffff88809a0c4f70 (0xffff88809a0c4f70) ffff88804eb7f788: ffff88809a0c4fd8 (0xffff88809a0c4fd8) ffff88804eb7f790: 1ffff11009d6fefc (0x1ffff11009d6fefc) ffff88804eb7f798: 0000000000000001 (0x1) ffff88804eb7f7a0: 7fffffffffffffff (0x7fffffffffffffff) ffff88804eb7f7a8: ffff88804ae996d8 (0xffff88804ae996d8) ffff88804eb7f7b0: ffff88809a0c4f00 (0xffff88809a0c4f00) ffff88804eb7f7b8: 0000000100000000 (0x100000000) ffff88804eb7f7c0: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f7c8: ffff88809a0c4680 (0xffff88809a0c4680) ffff88804eb7f7d0: ffff88804eb7fa40 (0xffff88804eb7fa40) ffff88804eb7f7d8: ffff88804ae998b8 (0xffff88804ae998b8) ffff88804eb7f7e0: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7f7e8: ffffffff87aeab38 (ORMASK+0x23978/0x13dba0) ffff88804eb7f7f0: ffffffff81c4f100 (ext4_mark_inode_dirty+0x860/0x860) ffff88804eb7f7f8: ffffffff81bec815 (__ext4_handle_dirty_metadata+0x125/0x470) ffff88804eb7f800: ffff88804eb7f800 (0xffff88804eb7f800) ffff88804eb7f808: ffff88804eb7f800 (0xffff88804eb7f800) ffff88804eb7f810: ffff88804eb7f810 (0xffff88804eb7f810) ffff88804eb7f818: ffff88804eb7f810 (0xffff88804eb7f810) ffff88804eb7f820: ffff88804eb7f820 (0xffff88804eb7f820) ffff88804eb7f828: ffff88804eb7f820 (0xffff88804eb7f820) ffff88804eb7f830: 0000000000000003 (0x3) ffff88804eb7f838: ffff8880553acdc0 (0xffff8880553acdc0) ffff88804eb7f840: 0000000000000006 (0x6) ffff88804eb7f848: ffff8880553ac540 (0xffff8880553ac540) ffff88804eb7f850: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f858: ffff88804eb7fa40 (0xffff88804eb7fa40) ffff88804eb7f860: 0000000000000000 ... ffff88804eb7f868: 0000000000000001 (0x1) ffff88804eb7f870: 00000000000087ff (0x87ff) ffff88804eb7f878: 0000000000030101 (0x30101) ffff88804eb7f880: 0000000100000000 (0x100000000) ffff88804eb7f888: 0000000000000060 (0x60) ffff88804eb7f890: ffff88804eb7fa40 (0xffff88804eb7fa40) ffff88804eb7f898: 0000000000000000 ... ffff88804eb7f8a0: ffff888091998de0 (0xffff888091998de0) ffff88804eb7f8a8: ffff8880553ace38 (0xffff8880553ace38) ffff88804eb7f8b0: ffffffff81997b71 (wbc_attach_and_unlock_inode+0x4c1/0x8f0) ffff88804eb7f8b8: ffff88804ae99750 (0xffff88804ae99750) ffff88804eb7f8c0: 0000000000000003 (0x3) ffff88804eb7f8c8: ffff88804eb7f908 (0xffff88804eb7f908) ffff88804eb7f8d0: ffffffff81474fd5 (find_held_lock+0x35/0x130) ffff88804eb7f8d8: ffff88804eb7f968 (0xffff88804eb7f968) ffff88804eb7f8e0: ffff88804eb7fa40 (0xffff88804eb7fa40) ffff88804eb7f8e8: ffff88804eb7f930 (0xffff88804eb7f930) ffff88804eb7f8f0: ffffffff86d7f640 (__func__.67268+0x40/0x40) ffff88804eb7f8f8: ffff88804ae998b8 (0xffff88804ae998b8) ffff88804eb7f900: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f908: ffffffff81c4f100 (ext4_mark_inode_dirty+0x860/0x860) ffff88804eb7f910: ffff88804eb7fa08 (0xffff88804eb7fa08) ffff88804eb7f918: ffffffff8173e660 (do_writepages+0xd0/0x250) ffff88804eb7f920: ffff88804eb7fa08 (0xffff88804eb7fa08) ffff88804eb7f928: ffffffff8173e660 (do_writepages+0xd0/0x250) ffff88804eb7f930: ffff88804eb7fa60 (0xffff88804eb7fa60) ffff88804eb7f938: ffff88804ae999b8 (0xffff88804ae999b8) ffff88804eb7f940: ffff8880553acdb8 (0xffff8880553acdb8) ffff88804eb7f948: 1ffff11009d6ff2c (0x1ffff11009d6ff2c) ffff88804eb7f950: 1ffff11009d6ff4c (0x1ffff11009d6ff4c) ffff88804eb7f958: ffffed10095d3337 (0xffffed10095d3337) ffff88804eb7f960: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7f968: ffffffff87ad8707 (ORMASK+0x11547/0x13dba0) ffff88804eb7f970: ffffffff8173e590 (page_writeback_cpu_online+0x20/0x20) ffff88804eb7f978: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f980: dffffc0000000000 (0xdffffc0000000000) ffff88804eb7f988: ffff88804eb7f9b0 (0xffff88804eb7f9b0) ffff88804eb7f990: ffffffff8148dd14 (do_raw_spin_unlock+0x174/0x260) ffff88804eb7f998: ffff88804ae99738 (0xffff88804ae99738) ffff88804eb7f9a0: ffff8880a1932198 (0xffff8880a1932198) ffff88804eb7f9a8: ffff88804eb7fa40 (0xffff88804eb7fa40) ffff88804eb7f9b0: ffff88804eb7f9c8 (0xffff88804eb7f9c8) ffff88804eb7f9b8: ffffffff8668dbdd (_raw_spin_unlock+0x2d/0x50) ffff88804eb7f9c0: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f9c8: ffff88804eb7fa08 (0xffff88804eb7fa08) ffff88804eb7f9d0: ffffffff81997c71 (wbc_attach_and_unlock_inode+0x5c1/0x8f0) ffff88804eb7f9d8: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f9e0: 1ffff11009d6ff44 (0x1ffff11009d6ff44) ffff88804eb7f9e8: ffff88804ae998b8 (0xffff88804ae998b8) ffff88804eb7f9f0: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7f9f8: ffff88804eb7fa40 (0xffff88804eb7fa40) ffff88804eb7fa00: 0000000000000000 ... ffff88804eb7fa08: ffff88804eb7fae8 (0xffff88804eb7fae8) ffff88804eb7fa10: ffffffff8170877e (__filemap_fdatawrite_range+0x24e/0x320) ffff88804eb7fa18: 1fffffff00000001 (0x1fffffff00000001) ffff88804eb7fa20: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7fa28: ffffffff87ad7936 (ORMASK+0x10776/0x13dba0) ffff88804eb7fa30: ffffffff81708530 (replace_page_cache_page+0x700/0x700) ffff88804eb7fa38: ffff88804eb7fa49 (0xffff88804eb7fa49) ffff88804eb7fa40: 7fffffffffffffff (0x7fffffffffffffff) ffff88804eb7fa48: 0000000000000000 ... ffff88804eb7fa58: 00000000087fffff (0x87fffff) ffff88804eb7fa60: 0000000000000001 (0x1) ffff88804eb7fa68: ffff8880a1932198 (0xffff8880a1932198) ffff88804eb7fa70: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7fa78: 0000000000000001 (0x1) ffff88804eb7fa80: 0000000000000000 ... ffff88804eb7faa0: ffffc9000a457000 (0xffffc9000a457000) ffff88804eb7faa8: 1ffff11011b895a2 (0x1ffff11011b895a2) ffff88804eb7fab0: ffffffff813fa4dc (preempt_count_add+0xbc/0x1a0) ffff88804eb7fab8: ffff88805d09a020 (0xffff88805d09a020) ffff88804eb7fac0: ffff88804eb7fd48 (0xffff88804eb7fd48) ffff88804eb7fac8: ffff88804ae998b8 (0xffff88804ae998b8) ffff88804eb7fad0: ffff88804eb7fd98 (0xffff88804eb7fd98) ffff88804eb7fad8: 0000000000000000 ... ffff88804eb7fae0: 00000000087fffff (0x87fffff) ffff88804eb7fae8: ffff88804eb7fb18 (0xffff88804eb7fb18) ffff88804eb7faf0: ffffffff817089de (filemap_write_and_wait_range+0x3e/0xa0) ffff88804eb7faf8: 00000000087fffff (0x87fffff) ffff88804eb7fb00: ffff88804eb7fd98 (0xffff88804eb7fd98) ffff88804eb7fb08: ffff88804ae998b8 (0xffff88804ae998b8) ffff88804eb7fb10: 0000000000000000 ... ffff88804eb7fb18: ffff88804eb7fb80 (0xffff88804eb7fb80) ffff88804eb7fb20: ffffffff8170f813 (generic_file_direct_write+0x333/0x430) ffff88804eb7fb28: ffff88804eb7fd50 (0xffff88804eb7fd50) ffff88804eb7fb30: ffff88804eb7fda8 (0xffff88804eb7fda8) ffff88804eb7fb38: 0000000008800000 (0x8800000) ffff88804eb7fb40: 0000000008800000 (0x8800000) ffff88804eb7fb48: 00000000000087ff (0x87ff) ffff88804eb7fb50: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7fb58: ffff88804eb7fd48 (0xffff88804eb7fd48) ffff88804eb7fb60: ffff88808dc4ad00 (0xffff88808dc4ad00) ffff88804eb7fb68: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7fb70: ffff88804ae998b8 (0xffff88804ae998b8) ffff88804eb7fb78: 0000000000000000 ... ffff88804eb7fb80: ffff88804eb7fbd8 (0xffff88804eb7fbd8) ffff88804eb7fb88: ffffffff8170fbcc (__generic_file_write_iter+0x2bc/0x5b0) ffff88804eb7fb90: ffffc9000a457000 (0xffffc9000a457000) ffff88804eb7fb98: 00000000000000e9 (0xe9) ffff88804eb7fba0: ffff88804eb7fd98 (0xffff88804eb7fd98) ffff88804eb7fba8: ffff8880a1932140 (0xffff8880a1932140) ffff88804eb7fbb0: ffff88804eb7fd48 (0xffff88804eb7fd48) ffff88804eb7fbb8: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7fbc0: ffff88804eb7fca8 (0xffff88804eb7fca8) ffff88804eb7fbc8: ffff88804ae99790 (0xffff88804ae99790) ffff88804eb7fbd0: 0000000000000000 ... ffff88804eb7fbd8: ffff88804eb7fcd0 (0xffff88804eb7fcd0) ffff88804eb7fbe0: ffffffff81c1495c (ext4_file_write_iter+0x2ac/0xe90) ffff88804eb7fbe8: ffff8880553acdc0 (0xffff8880553acdc0) ffff88804eb7fbf0: 0000000000000006 (0x6) ffff88804eb7fbf8: ffff88804ae99700 (0xffff88804ae99700) ffff88804eb7fc00: ffff88804ae996d8 (0xffff88804ae996d8) ffff88804eb7fc08: ffff88804ae99510 (0xffff88804ae99510) ffff88804eb7fc10: ffff88804eb7fd68 (0xffff88804eb7fd68) ffff88804eb7fc18: 1ffff11009d6ff85 (0x1ffff11009d6ff85) ffff88804eb7fc20: ffff88804eb7fd98 (0xffff88804eb7fd98) ffff88804eb7fc28: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7fc30: ffffffff87aea370 (ORMASK+0x231b0/0x13dba0) ffff88804eb7fc38: ffffffff81c146b0 (ext4_file_mmap+0x2c0/0x2c0) ffff88804eb7fc40: 0000000000000000 ... ffff88804eb7fc50: ffff88804eb7fc70 (0xffff88804eb7fc70) ffff88804eb7fc58: ffffffff00000000 (0xffffffff00000000) ffff88804eb7fc60: 0000000000000000 ... ffff88804eb7fc70: ffff88804eb7fcc8 (0xffff88804eb7fcc8) ffff88804eb7fc78: ffffffff81004236 (trace_hardirqs_on_thunk+0x1a/0x1c) ffff88804eb7fc80: 0000000000000001 (0x1) ffff88804eb7fc88: ffff88821fff7050 (0xffff88821fff7050) ffff88804eb7fc90: ffff88804eb7fcd0 (0xffff88804eb7fcd0) ffff88804eb7fc98: ffffffff830b2eff (iov_iter_init+0xaf/0x1d0) ffff88804eb7fca0: ffff88804eb7fcd8 (0xffff88804eb7fcd8) ffff88804eb7fca8: ffff88804eb7fde8 (0xffff88804eb7fde8) ffff88804eb7fcb0: ffffffff86d7c0e0 (ext4_file_inode_operations+0xe0/0xe0) ffff88804eb7fcb8: ffff88804eb7fea0 (0xffff88804eb7fea0) ffff88804eb7fcc0: 00000000175d900f (0x175d900f) ffff88804eb7fcc8: ffff88804eb7fd98 (0xffff88804eb7fd98) ffff88804eb7fcd0: ffff88804eb7fe10 (0xffff88804eb7fe10) ffff88804eb7fcd8: ffffffff818f43d7 (__vfs_write+0x4a7/0x6b0) ffff88804eb7fce0: 0000000000000000 ... ffff88804eb7fce8: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7fcf0: ffff88808dc4ad28 (0xffff88808dc4ad28) ffff88804eb7fcf8: ffffffff00000000 (0xffffffff00000000) ffff88804eb7fd00: 1ffff11009d6ffa1 (0x1ffff11009d6ffa1) ffff88804eb7fd08: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7fd10: ffffffff87adfb30 (ORMASK+0x18970/0x13dba0) ffff88804eb7fd18: ffffffff818f3f30 (kernel_read+0x120/0x120) ffff88804eb7fd20: ffff8880553acde8 (0xffff8880553acde8) ffff88804eb7fd28: 0000000020000200 (0x20000200) ffff88804eb7fd30: 00000000175d900f (0x175d900f) ffff88804eb7fd38: ffffffff830df56c (check_preemption_disabled+0x3c/0x250) ffff88804eb7fd40: ffff8880553acdb8 (0xffff8880553acdb8) ffff88804eb7fd48: ffff88808dc4ad00 (0xffff88808dc4ad00) ffff88804eb7fd50: 0000000000000000 ... ffff88804eb7fd60: ffff88804eb7fc58 (0xffff88804eb7fc58) ffff88804eb7fd68: 0000000000000004 (0x4) ffff88804eb7fd70: 0000000000000001 (0x1) ffff88804eb7fd78: ffff88804eb7fda8 (0xffff88804eb7fda8) ffff88804eb7fd80: 0000000000000282 (0x282) ffff88804eb7fd88: ffffffff814db842 (rcu_lockdep_current_cpu_online+0xf2/0x140) ffff88804eb7fd90: 0000000000000003 (0x3) ffff88804eb7fd98: ffff888200000001 (0xffff888200000001) ffff88804eb7fda0: 0000000000000000 ... ffff88804eb7fda8: 0000000008800000 (0x8800000) ffff88804eb7fdb0: ffff88804eb7fd28 (0xffff88804eb7fd28) ffff88804eb7fdb8: 0000000000000001 (0x1) ffff88804eb7fdc0: ffff88804eb7fdd8 (0xffff88804eb7fdd8) ffff88804eb7fdc8: ffffffff814d177d (rcu_sync_lockdep_assert+0x6d/0xb0) ffff88804eb7fdd0: 0000000000000001 (0x1) ffff88804eb7fdd8: ffff88804eb7fe10 (0xffff88804eb7fe10) ffff88804eb7fde0: ffffffff818faad3 (__sb_start_write+0x153/0x2f0) ffff88804eb7fde8: ffff88808dc4ad00 (0xffff88808dc4ad00) ffff88804eb7fdf0: ffff88808dc4ad20 (0xffff88808dc4ad20) ffff88804eb7fdf8: 00000000175d900f (0x175d900f) ffff88804eb7fe00: ffff88804eb7fea0 (0xffff88804eb7fea0) ffff88804eb7fe08: ffff88808dc4ad7c (0xffff88808dc4ad7c) ffff88804eb7fe10: ffff88804eb7fe58 (0xffff88804eb7fe58) ffff88804eb7fe18: ffffffff818f4ae8 (vfs_write+0x198/0x500) ffff88804eb7fe20: ffff88804ae996b0 (0xffff88804ae996b0) ffff88804eb7fe28: 0000000020000200 (0x20000200) ffff88804eb7fe30: ffff88808dc4ad03 (0xffff88808dc4ad03) ffff88804eb7fe38: ffff88808dc4ad00 (0xffff88808dc4ad00) ffff88804eb7fe40: 0000000000000000 ... ffff88804eb7fe48: ffff88808dc4ad7c (0xffff88808dc4ad7c) ffff88804eb7fe50: ffff88804eb7fec0 (0xffff88804eb7fec0) ffff88804eb7fe58: ffff88804eb7fee8 (0xffff88804eb7fee8) ffff88804eb7fe60: ffffffff818f529d (SyS_write+0xfd/0x230) ffff88804eb7fe68: 00000000175d900f (0x175d900f) ffff88804eb7fe70: 0000000020000200 (0x20000200) ffff88804eb7fe78: 1ffff11009d6ffd0 (0x1ffff11009d6ffd0) ffff88804eb7fe80: 0000000041b58ab3 (0x41b58ab3) ffff88804eb7fe88: ffffffff87adf92b (ORMASK+0x1876b/0x13dba0) ffff88804eb7fe90: ffffffff818f51a0 (SyS_read+0x230/0x230) ffff88804eb7fe98: ffffffff810075e3 (do_syscall_64+0x53/0x640) ffff88804eb7fea0: 0000000000000000 ... ffff88804eb7fea8: ffff88804eb7ffd0 (0xffff88804eb7ffd0) ffff88804eb7feb0: ffff8880553ac540 (0xffff8880553ac540) ffff88804eb7feb8: ffff88804eb7fed8 (0xffff88804eb7fed8) ffff88804eb7fec0: ffffffff818f51a0 (SyS_read+0x230/0x230) ffff88804eb7fec8: ffff88804eb7ff58 (0xffff88804eb7ff58) ffff88804eb7fed0: ffffffff87f16658 (pv_irq_ops+0x18/0x30) ffff88804eb7fed8: ffff88804eb7ffd0 (0xffff88804eb7ffd0) ffff88804eb7fee0: ffff8880553ac540 (0xffff8880553ac540) ffff88804eb7fee8: ffff88804eb7ff48 (0xffff88804eb7ff48) ffff88804eb7fef0: ffffffff81007778 (do_syscall_64+0x1e8/0x640) ffff88804eb7fef8: ffffffff81004252 (trace_hardirqs_off_thunk+0x1a/0x1c) ffff88804eb7ff00: 0000000000000000 ... ffff88804eb7ff50: ffffffff86800086 (entry_SYSCALL_64_after_hwframe+0x42/0xb7) ffff88804eb7ff58: 0000000000000007 (0x7) ffff88804eb7ff60: 00000000004ce9d8 (0x4ce9d8) ffff88804eb7ff68: 0000000000000cb5 (0xcb5) ffff88804eb7ff70: 000000000000000c (0xc) ffff88804eb7ff78: 000000000076bf20 (0x76bf20) ffff88804eb7ff80: 00007fc50d5de6d4 (0x7fc50d5de6d4) ffff88804eb7ff88: 0000000000000246 (0x246) ffff88804eb7ff90: 0000000000000000 ... ffff88804eb7ffa8: ffffffffffffffda (0xffffffffffffffda) ffff88804eb7ffb0: 000000000045c449 (0x45c449) ffff88804eb7ffb8: 00000000175d900f (0x175d900f) ffff88804eb7ffc0: 0000000020000200 (0x20000200) ffff88804eb7ffc8: 0000000000000005 (0x5) ffff88804eb7ffd0: 0000000000000001 (0x1) ffff88804eb7ffd8: 000000000045c449 (0x45c449) ffff88804eb7ffe0: 0000000000000033 (0x33) ffff88804eb7ffe8: 0000000000000246 (0x246) ffff88804eb7fff0: 00007fc50d5ddc78 (0x7fc50d5ddc78) ffff88804eb7fff8: 000000000000002b (0x2b) FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 30465 Comm: syz-executor.0 Not tainted 4.14.171-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2891 [inline] prepare_alloc_pages mm/page_alloc.c:4124 [inline] __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] kmem_getpages mm/slab.c:1419 [inline] cache_grow_begin+0x80/0x400 mm/slab.c:2676 cache_alloc_refill mm/slab.c:3043 [inline] ____cache_alloc mm/slab.c:3125 [inline] ____cache_alloc mm/slab.c:3108 [inline] __do_cache_alloc mm/slab.c:3347 [inline] slab_alloc mm/slab.c:3382 [inline] kmem_cache_alloc+0x6a6/0x780 mm/slab.c:3550 getname_flags fs/namei.c:138 [inline] getname_flags+0xcb/0x580 fs/namei.c:128 user_path_at_empty+0x2f/0x50 fs/namei.c:2631 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0xcd/0x160 fs/stat.c:185 vfs_lstat include/linux/fs.h:3065 [inline] SYSC_newlstat+0x95/0x100 fs/stat.c:350 SyS_newlstat+0x1e/0x30 fs/stat.c:344 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c449 RSP: 002b:00007f10a067cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 00007f10a067d6d4 RCX: 000000000045c449 RDX: 0000000000000000 RSI: 0000000020000380 RDI: 0000000020000340 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000726 R14: 00000000004c9ac3 R15: 0000000000000001 CPU: 1 PID: 30470 Comm: syz-executor.4 Not tainted 4.14.171-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2d7/0x780 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] ext4_init_io_end+0x27/0x100 fs/ext4/page-io.c:253 ext4_writepages+0x10d6/0x2fd0 fs/ext4/inode.c:2863 do_writepages+0xd0/0x250 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x24e/0x320 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x3e/0xa0 mm/filemap.c:575 generic_file_direct_write+0x333/0x430 mm/filemap.c:2926 __generic_file_write_iter+0x2bc/0x5b0 mm/filemap.c:3129 ext4_file_write_iter+0x2ac/0xe90 fs/ext4/file.c:268 call_write_iter include/linux/fs.h:1777 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x4a7/0x6b0 fs/read_write.c:482 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c449 RSP: 002b:00007fc50d5ddc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc50d5de6d4 RCX: 000000000045c449 RDX: 00000000175d900f RSI: 0000000020000200 RDI: 0000000000000005 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 0000000000000cb5 R14: 00000000004ce9d8 R15: 0000000000000007 selinux_nlmsg_perm: 314 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30512 comm=syz-executor.3 overlayfs: unrecognized mount option "lowerdir