WARNING: CPU: 0 PID: 10805 at fs/ext4/page-io.c:206 ext4_add_complete_io fs/ext4/page-io.c:206 [inline]
WARNING: CPU: 0 PID: 10805 at fs/ext4/page-io.c:206 ext4_put_io_end_defer+0x43c/0x560 fs/ext4/page-io.c:269
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 10805 Comm: syz-executor5 Not tainted 4.19.0-rc4-next-20180921+ #77
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969
RIP: 0010:ext4_add_complete_io fs/ext4/page-io.c:206 [inline]
RIP: 0010:ext4_put_io_end_defer+0x43c/0x560 fs/ext4/page-io.c:269
Code: 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2a 01 00 00 49 83 bf e0 02 00 00 00 0f 84 d8 fd ff ff e8 c4 b4 5c ff <0f> 0b e9 cc fd ff ff e8 38 2e a0 ff e9 81 fc ff ff 48 89 b5 30 ff
RSP: 0018:ffff8801dac070f8 EFLAGS: 00010006
RAX: ffff8801c109a580 RBX: ffff8801c6639a80 RCX: ffffffff82209947
RDX: 0000000000010000 RSI: ffffffff82209c6c RDI: ffff8801c940cea0
RBP: ffff8801dac071e8 R08: ffff8801c109a580 R09: ffffed0038cc7355
R10: ffffed0038cc7355 R11: ffff8801c6639aaf R12: 1ffff1003b580e24
R13: ffff8801cb7ee7f0 R14: ffff8801dac071c0 R15: ffff8801c940cbc0
 ext4_end_bio+0x243/0x6e0 fs/ext4/page-io.c:335
 bio_endio+0x5ca/0xb60 block/bio.c:1773
 req_bio_endio block/blk-core.c:277 [inline]
 blk_update_request+0x3b8/0xcb0 block/blk-core.c:3104
 scsi_end_request+0xde/0x860 drivers/scsi/scsi_lib.c:673
 scsi_io_completion+0x2ce/0x1ca0 drivers/scsi/scsi_lib.c:1093
 scsi_finish_command+0x579/0x970 drivers/scsi/scsi.c:248
 scsi_softirq_done+0x465/0x520 drivers/scsi/scsi_lib.c:1737
 __blk_mq_complete_request block/blk-mq.c:583 [inline]
 blk_mq_complete_request+0x3ba/0x680 block/blk-mq.c:620
 scsi_mq_done+0x108/0x460 drivers/scsi/scsi_lib.c:2048
 virtscsi_complete_cmd+0x6b6/0x920 drivers/scsi/virtio_scsi.c:207
 virtscsi_vq_done+0xcb/0x180 drivers/scsi/virtio_scsi.c:223
 virtscsi_req_done+0xa7/0xd0 drivers/scsi/virtio_scsi.c:238
 vring_interrupt+0x139/0x200 drivers/virtio/virtio_ring.c:950
 __handle_irq_event_percpu+0x1e1/0xaf0 kernel/irq/handle.c:149
 handle_irq_event_percpu+0xa0/0x1d0 kernel/irq/handle.c:189
 handle_irq_event+0xa7/0x135 kernel/irq/handle.c:206
 handle_edge_irq+0x227/0x880 kernel/irq/chip.c:791
 generic_handle_irq_desc include/linux/irqdesc.h:154 [inline]
 handle_irq+0x252/0x3d8 arch/x86/kernel/irq_64.c:78
 do_IRQ+0x98/0x1c0 arch/x86/kernel/irq.c:246
 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:582
 </IRQ>
RIP: 0010:unmapped_area_topdown+0x221/0x900 mm/mmap.c:1972
Code: 05 00 00 48 8b 85 58 ff ff ff 48 8b bd 68 ff ff ff 4c 8b 78 48 4c 89 fe e8 dc 0f ca ff 4c 39 bd 68 ff ff ff 0f 83 00 05 00 00 <e8> 1a 0f ca ff 48 8b 85 58 ff ff ff 48 8d 58 08 48 b8 00 00 00 00
RSP: 0018:ffff880189eff900 EFLAGS: 00000287 ORIG_RAX: ffffffffffffffda
RAX: 0000000000000000 RBX: 00007f991e31c000 RCX: ffffffff81b34204
RDX: 00007ffcf447d000 RSI: 00007f991e2fb000 RDI: 0000000000000006
RBP: ffff880189eff9e0 R08: ffff8801c109a580 R09: 0000000000000000
R10: ffff8801c109ae00 R11: ffff880189effc78 R12: ffff880189effa40
R13: 0000000000021000 R14: 0000000000000000 R15: 00007ffcf447d000
 vm_unmapped_area include/linux/mm.h:2347 [inline]
 arch_get_unmapped_area_topdown+0x3ac/0x940 arch/x86/kernel/sys_x86_64.c:231
 get_unmapped_area+0x1be/0x3b0 mm/mmap.c:2175
 do_mmap+0x30d/0x1220 mm/mmap.c:1406
 do_mmap_pgoff include/linux/mm.h:2298 [inline]
 vm_mmap_pgoff+0x213/0x2c0 mm/util.c:357
 ksys_mmap_pgoff+0xf1/0x660 mm/mmap.c:1585
 __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+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4576ca
Code: 89 f5 41 54 49 89 fc 55 53 74 35 49 63 e8 48 63 da 4d 89 f9 49 89 e8 4d 63 d6 48 89 da 4c 89 ee 4c 89 e7 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 4e 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00
RSP: 002b:00007ffcf4441368 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004576ca
RDX: 0000000000000003 RSI: 0000000000021000 RDI: 0000000000000000
RBP: ffffffffffffffff R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000020022 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000021000 R14: 0000000000020022 R15: 0000000000000000
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..