WARNING: CPU: 1 PID: 29128 at fs/ext4/page-io.c:206 ext4_add_complete_io fs/ext4/page-io.c:206 [inline] WARNING: CPU: 1 PID: 29128 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: 1 PID: 29128 Comm: syz-executor0 Not tainted 4.19.0-rc5-next-20180928+ #84 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+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+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 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 64 96 5c ff <0f> 0b e9 cc fd ff ff e8 c8 4a a0 ff e9 81 fc ff ff 48 89 b5 30 ff RSP: 0018:ffff8801daf07108 EFLAGS: 00010006 RAX: ffff8801c977a0c0 RBX: ffff8801b90fd6c0 RCX: ffffffff8220cec7 RDX: 0000000000010000 RSI: ffffffff8220d1ec RDI: ffff8801c9fc0e60 RBP: ffff8801daf071f8 R08: ffff8801c977a0c0 R09: ffffed003721fadd R10: ffffed003721fadd R11: ffff8801b90fd6ef R12: 1ffff1003b5e0e26 R13: ffff8801cb9c32b0 R14: ffff8801daf071d0 R15: ffff8801c9fc0b80 ext4_end_bio+0x243/0x6e0 fs/ext4/page-io.c:335 bio_endio+0x5ca/0xb60 block/bio.c:1775 req_bio_endio block/blk-core.c:278 [inline] blk_update_request+0x3b8/0xcb0 block/blk-core.c:3075 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:586 [inline] blk_mq_complete_request+0x2c2/0x550 block/blk-mq.c:623 scsi_mq_done+0x108/0x460 drivers/scsi/scsi_lib.c:2048 virtscsi_complete_cmd+0x573/0x740 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+0x128/0x170 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 RIP: 0010:__sanitizer_cov_trace_pc+0x48/0x50 kernel/kcov.c:108 Code: 75 2b 8b 90 d0 12 00 00 83 fa 02 75 20 48 8b 88 d8 12 00 00 8b 80 d4 12 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 <48> 89 11 5d c3 0f 1f 00 55 40 0f b6 d6 40 0f b6 f7 31 ff 48 89 e5 RSP: 0018:ffff8801ba9d68e0 EFLAGS: 00000216 ORIG_RAX: ffffffffffffffdb RAX: 0000000000040000 RBX: dffffc0000000000 RCX: ffffc9000206b000 RDX: 00000000000094a1 RSI: ffffffff81b0ab18 RDI: ffff8801d2103358 RBP: ffff8801ba9d68e0 R08: ffff8801c977a0c0 R09: ffffed003960d1ef R10: ffffed003960d1ef R11: ffff8801cb068f7b R12: 1ffff1003753ad20 R13: ffff8801ba9d6960 R14: 80000001bc485007 R15: ffff8801d2103358 _vm_normal_page+0x78/0x3c0 mm/memory.c:575 copy_one_pte mm/memory.c:791 [inline] copy_pte_range mm/memory.c:855 [inline] copy_pmd_range mm/memory.c:906 [inline] copy_pud_range mm/memory.c:940 [inline] copy_p4d_range mm/memory.c:962 [inline] copy_page_range+0xdf8/0x26f0 mm/memory.c:1024 dup_mmap kernel/fork.c:585 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x4720/0x8780 kernel/fork.c:1917 _do_fork+0x1cb/0x11c0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb5fbff9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457579 RDX: 00000000200001c0 RSI: 0000000020000400 RDI: 0000000000000000 RBP: 000000000072bfa0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000020000380 R11: 0000000000000246 R12: 00007fb5fbffa6d4 R13: 00000000004bd9fa R14: 00000000004cc448 R15: 00000000ffffffff Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..