Resetting rate control (1966442 samples) Warning: Permanently added '[localhost]:44951' (ECDSA) to the list of known hosts. 2020/04/15 01:35:13 fuzzer started 2020/04/15 01:35:21 dialing manager at 10.0.2.10:41513 2020/04/15 01:35:22 syscalls: 2987 2020/04/15 01:35:22 code coverage: enabled 2020/04/15 01:35:22 comparison tracing: enabled 2020/04/15 01:35:22 extra coverage: enabled 2020/04/15 01:35:22 setuid sandbox: enabled 2020/04/15 01:35:22 namespace sandbox: enabled 2020/04/15 01:35:22 Android sandbox: /sys/fs/selinux/policy does not exist 2020/04/15 01:35:22 fault injection: enabled 2020/04/15 01:35:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/04/15 01:35:22 net packet injection: enabled 2020/04/15 01:35:22 net device setup: enabled 2020/04/15 01:35:22 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/04/15 01:35:22 devlink PCI setup: PCI device 0000:00:10.0 is not available Resetting rate control (2272230 samples) Resetting rate control (2233540 samples) [ 614.907994][ T2803] sd 0:0:0:0: [sda] tag#16 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT cmd_age=51s [ 615.025029][ T2803] sd 0:0:0:0: [sda] tag#16 CDB: Write(10) 2a 00 00 00 08 38 00 00 08 00 [ 615.119715][ T2803] blk_update_request: I/O error, dev sda, sector 2104 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 0 [ 615.226928][ T2803] Buffer I/O error on dev sda1, logical block 7, lost async page write [ 615.379773][ T2803] sd 0:0:0:0: [sda] tag#15 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT cmd_age=51s [ 615.462329][ T2803] sd 0:0:0:0: [sda] tag#15 CDB: Write(10) 2a 00 00 00 08 08 00 00 08 00 [ 615.517976][ T2803] blk_update_request: I/O error, dev sda, sector 2056 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 0 [ 615.570853][ T2803] Buffer I/O error on dev sda1, logical block 1, lost async page write [ 645.763041][ T852] ------------[ cut here ]------------ [ 645.781065][ T852] WARNING: CPU: 0 PID: 852 at fs/buffer.c:1122 mark_buffer_dirty+0x4fa/0x690 [ 645.820786][ T852] Kernel panic - not syncing: panic_on_warn set ... [ 645.856475][ T852] CPU: 0 PID: 852 Comm: kworker/u17:7 Not tainted 5.6.0-syzkaller #0 [ 645.896425][ T852] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 645.900872][ T852] Workqueue: writeback wb_workfn (flush-8:0) [ 645.966764][ T852] Call Trace: [ 645.988787][ T852] dump_stack+0x188/0x20d [ 646.011363][ T852] ? mark_buffer_dirty+0x4b0/0x690 [ 646.026536][ T852] panic+0x2e3/0x75c [ 646.043227][ T852] ? add_taint.cold+0x16/0x16 [ 646.057970][ T852] ? printk+0xba/0xed [ 646.067365][ T852] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 646.078808][ T852] ? __warn.cold+0x14/0x35 [ 646.099630][ T852] ? __warn+0xd5/0x1c8 [ 646.106092][ T852] ? mark_buffer_dirty+0x4fa/0x690 [ 646.116143][ T852] __warn.cold+0x2f/0x35 [ 646.126067][ T852] ? mark_buffer_dirty+0x4fa/0x690 [ 646.136046][ T852] report_bug+0x27b/0x2f0 [ 646.139716][ T852] do_error_trap+0x12b/0x220 [ 646.149911][ T852] ? mark_buffer_dirty+0x4fa/0x690 [ 646.160168][ T852] do_invalid_op+0x32/0x40 [ 646.166072][ T852] ? mark_buffer_dirty+0x4fa/0x690 [ 646.176038][ T852] invalid_op+0x23/0x30 [ 646.180572][ T852] RIP: 0010:mark_buffer_dirty+0x4fa/0x690 [ 646.190765][ T852] Code: 03 80 3c 02 00 0f 85 99 01 00 00 48 8b 3b be 04 00 00 00 e8 d8 e2 fc ff 5b 5d 41 5c 41 5d 41 5e e9 db 6d a9 ff e8 d6 6d a9 ff <0f> 0b e9 4f fb ff ff e8 ca 6d a9 ff 0f 0b e9 73 fb ff ff e8 be 6d [ 646.226394][ T852] RSP: 0018:ffffc90002a56ff0 EFLAGS: 00010293 [ 646.236087][ T852] RAX: ffff888028425dc0 RBX: ffff88802404dd98 RCX: ffffffff81c98197 [ 646.250305][ T852] RDX: 0000000000000000 RSI: ffffffff81c9864a RDI: 0000000000000001 [ 646.266076][ T852] RBP: 0000000000000000 R08: ffff888028425dc0 R09: ffffed1004809bb4 [ 646.279013][ T852] R10: ffffed1004809bb3 R11: ffff88802404dd9f R12: 0000000000000000 [ 646.296195][ T852] R13: 0000000000000000 R14: ffff8880270c5bc0 R15: ffff88801db0457c [ 646.311053][ T852] ? mark_buffer_dirty+0x47/0x690 [ 646.316395][ T852] ? mark_buffer_dirty+0x4fa/0x690 [ 646.326606][ T852] __ext4_handle_dirty_metadata+0x41d/0x7a0 [ 646.336801][ T852] ext4_mb_mark_diskspace_used+0x943/0x10e0 [ 646.357395][ T852] ? ext4_mb_regular_allocator+0xec0/0xec0 [ 646.367762][ T852] ext4_mb_new_blocks+0xb25/0x3940 [ 646.383972][ T852] ? ext4_ext_search_right+0x2c7/0xb50 [ 646.396077][ T852] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 646.406246][ T852] ext4_ext_map_blocks+0x221c/0x37d0 [ 646.416464][ T852] ? ext4_ext_release+0x10/0x10 [ 646.426400][ T852] ? __down_timeout+0x2d0/0x2d0 [ 646.426400][ T852] ? ext4_es_lookup_extent+0x41d/0xd30 [ 646.426400][ T852] ext4_map_blocks+0x4cb/0x1650 [ 646.426400][ T852] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 646.426400][ T852] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 646.496097][ T852] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 646.496097][ T852] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 646.496097][ T852] ext4_writepages+0x19e9/0x30c0 [ 646.496097][ T852] ? ext4_mark_inode_dirty+0x900/0x900 [ 646.496097][ T852] ? __lock_acquire+0x2165/0x4e00 [ 646.496097][ T852] ? mark_held_locks+0xe0/0xe0 [ 646.566236][ T852] ? mark_held_locks+0xe0/0xe0 [ 646.581493][ T852] ? ext4_mark_inode_dirty+0x900/0x900 [ 646.592460][ T852] ? do_writepages+0xfa/0x2a0 [ 646.601994][ T852] do_writepages+0xfa/0x2a0 [ 646.612240][ T852] ? page_writeback_cpu_online+0x10/0x10 [ 646.622465][ T852] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 646.626060][ T852] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 646.646236][ T852] __writeback_single_inode+0x12a/0x1410 [ 646.656071][ T852] ? _raw_spin_unlock+0x24/0x40 [ 646.668668][ T852] ? wbc_attach_and_unlock_inode+0x545/0x9c0 [ 646.678977][ T852] writeback_sb_inodes+0x515/0xdd0 [ 646.689184][ T852] ? __writeback_single_inode+0x1410/0x1410 [ 646.701832][ T852] __writeback_inodes_wb+0xc3/0x250 [ 646.706059][ T852] wb_writeback+0x910/0xd90 [ 646.718891][ T852] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 646.731755][ T852] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 646.736244][ T852] ? cpumask_next+0x3c/0x40 [ 646.749088][ T852] ? get_nr_dirty_inodes+0xd6/0x130 [ 646.756100][ T852] wb_workfn+0xb50/0x11c0 [ 646.766057][ T852] ? inode_wait_for_writeback+0x30/0x30 [ 646.774992][ T852] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 646.786082][ T852] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 646.796080][ T852] ? _raw_spin_unlock_irq+0x1f/0x80 [ 646.806677][ T852] process_one_work+0x965/0x16a0 [ 646.816250][ T852] ? lock_release+0x800/0x800 [ 646.826192][ T852] ? pwq_dec_nr_in_flight+0x310/0x310 [ 646.833433][ T852] ? rwlock_bug.part.0+0x90/0x90 [ 646.836065][ T852] worker_thread+0x96/0xe20 [ 646.851091][ T852] ? process_one_work+0x16a0/0x16a0 [ 646.856132][ T852] kthread+0x388/0x470 [ 646.866295][ T852] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 646.866295][ T852] ret_from_fork+0x24/0x30 [ 646.880442][ T852] Kernel Offset: disabled [ 646.880442][ T852] Rebooting in 86400 seconds..