Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts. 2018/12/22 12:40:05 fuzzer started 2018/12/22 12:40:07 connecting to host at 10.128.0.26:42235 2018/12/22 12:40:07 checking revisions... 2018/12/22 12:40:07 testing simple program... [ 40.529073] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program [ 60.192998] WARNING: CPU: 0 PID: 26 at include/linux/blk-cgroup.h:518 __bio_associate_blkg.isra.36+0x80b/0x8f0 [ 60.203305] Kernel panic - not syncing: panic_on_warn set ... [ 60.209200] CPU: 0 PID: 26 Comm: kworker/u4:2 Not tainted 4.20.0-rc7-next-20181221 #185 [ 60.217336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.226705] Workqueue: writeback wb_workfn (flush-8:0) [ 60.231983] Call Trace: [ 60.234594] dump_stack+0x1d3/0x2c6 [ 60.238236] ? dump_stack_print_info.cold.1+0x20/0x20 [ 60.243441] panic+0x2ad/0x632 [ 60.246640] ? add_taint.cold.5+0x16/0x16 [ 60.250803] ? __warn.cold.8+0x5/0x4f [ 60.254615] ? __warn+0xe8/0x1d0 [ 60.258000] ? __bio_associate_blkg.isra.36+0x80b/0x8f0 [ 60.263370] __warn.cold.8+0x20/0x4f [ 60.267091] ? rcu_softirq_qs+0x20/0x20 [ 60.271071] ? __bio_associate_blkg.isra.36+0x80b/0x8f0 [ 60.276441] report_bug+0x254/0x2d0 [ 60.280115] do_error_trap+0x11b/0x200 [ 60.284029] do_invalid_op+0x36/0x40 [ 60.287743] ? __bio_associate_blkg.isra.36+0x80b/0x8f0 [ 60.293129] invalid_op+0x14/0x20 [ 60.296587] RIP: 0010:__bio_associate_blkg.isra.36+0x80b/0x8f0 [ 60.302563] Code: 7b 50 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 f1 00 00 00 48 8b 43 50 4c 89 ef e8 bf c6 88 04 e9 a4 f9 ff ff e8 c5 ad 07 fe <0f> 0b e9 5c fa ff ff e8 b9 ad 07 fe e8 ab e2 88 fd e9 fe f9 ff ff [ 60.321470] RSP: 0018:ffff8881d94cd738 EFLAGS: 00010293 [ 60.326851] RAX: ffff8881d94b46c0 RBX: 0000000000000000 RCX: ffffffff83779576 [ 60.334120] RDX: 0000000000000000 RSI: ffffffff83779b1b RDI: 0000000000000005 [ 60.341389] RBP: ffff8881d94cd8b8 R08: ffff8881d94b46c0 R09: ffffed103b5c5b77 [ 60.348663] R10: ffffed103b5c5b77 R11: ffff8881dae2dbbb R12: ffff8881ceec5340 [ 60.355929] R13: ffff8881cb728a00 R14: ffff8881c10ccd98 R15: ffff8881ceec5340 [ 60.363217] ? __bio_associate_blkg.isra.36+0x266/0x8f0 [ 60.368593] ? __bio_associate_blkg.isra.36+0x80b/0x8f0 [ 60.374185] ? __bio_associate_blkg.isra.36+0x80b/0x8f0 [ 60.379567] ? kasan_check_write+0x14/0x20 [ 60.383821] ? bio_init+0x139/0x260 [ 60.387437] ? bio_reset+0x510/0x510 [ 60.391176] ? mark_held_locks+0x130/0x130 [ 60.395405] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.400924] ? bio_alloc_bioset+0x2cc/0x6f0 [ 60.405236] ? mark_held_locks+0x130/0x130 [ 60.409482] ? bvec_alloc+0x2d0/0x2d0 [ 60.413267] __bio_clone_fast+0x412/0x5e0 [ 60.417399] bio_clone_fast+0x42/0x110 [ 60.421268] bio_split+0x86/0x260 [ 60.424705] blk_queue_split+0xa1e/0x2080 [ 60.428846] ? blk_queue_bounce+0x126/0x29b6 [ 60.433246] ? __blk_recalc_rq_segments+0xe20/0xe20 [ 60.438247] ? find_held_lock+0x36/0x1c0 [ 60.442292] ? graph_lock+0x270/0x270 [ 60.446079] ? ktime_get+0x332/0x400 [ 60.449781] ? find_held_lock+0x36/0x1c0 [ 60.453848] blk_mq_make_request+0x2e7/0x1e30 [ 60.458330] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.463853] ? check_preemption_disabled+0x48/0x280 [ 60.468856] ? blk_mq_try_issue_directly+0xaf0/0xaf0 [ 60.473947] ? __lock_is_held+0xb5/0x140 [ 60.478001] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 60.483529] ? trace_event_raw_event_block_rq_requeue+0x6f0/0x6f0 [ 60.489747] ? __set_page_dirty_buffers+0x810/0x810 [ 60.494749] ? ___might_sleep+0x1ed/0x300 [ 60.498882] ? ext4_mark_iloc_dirty+0x17a9/0x2f30 [ 60.503709] ? arch_local_save_flags+0x40/0x40 [ 60.508273] ? lock_downgrade+0x900/0x900 [ 60.512411] ? kasan_check_write+0x14/0x20 [ 60.516633] ? __brelse+0x104/0x180 [ 60.520277] ? block_commit_write+0x30/0x30 [ 60.524583] ? __ext4_handle_dirty_metadata+0x1e0/0x5a0 [ 60.529936] ? kasan_check_write+0x14/0x20 [ 60.534153] ? ext4_mark_iloc_dirty+0x199a/0x2f30 [ 60.538992] generic_make_request+0x9a5/0x1890 [ 60.543569] ? ___might_sleep+0x1ed/0x300 [ 60.547702] ? blk_queue_enter+0x11f0/0x11f0 [ 60.552097] ? other_inode_match+0xbb0/0xbb0 [ 60.556487] ? __might_sleep+0x95/0x190 [ 60.560451] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.565971] ? __ext4_journal_get_write_access+0x6d/0xa0 [ 60.571409] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.576945] ? ext4_reserve_inode_write+0x148/0x260 [ 60.581962] ? ext4_mark_inode_dirty+0x266/0xb20 [ 60.586721] ? ext4_expand_extra_isize+0x5b0/0x5b0 [ 60.591661] ? lock_release+0xa00/0xa00 [ 60.595625] submit_bio+0xba/0x460 [ 60.599164] ? submit_bio+0xba/0x460 [ 60.602867] ? generic_make_request+0x1890/0x1890 [ 60.607726] ? up_write+0x7b/0x220 [ 60.611249] ? down_write_nested+0x130/0x130 [ 60.615642] ? down_read+0x120/0x120 [ 60.619345] ext4_io_submit+0x197/0x230 [ 60.623302] ext4_writepages+0x1c4b/0x4190 [ 60.627533] ? ext4_mark_inode_dirty+0xb20/0xb20 [ 60.632274] ? graph_lock+0x240/0x270 [ 60.636059] ? print_usage_bug+0xc0/0xc0 [ 60.640115] ? __lock_acquire+0x62f/0x4c20 [ 60.644346] ? hctx_unlock+0xde/0x150 [ 60.648133] ? print_usage_bug+0xc0/0xc0 [ 60.652181] ? __lock_acquire+0x62f/0x4c20 [ 60.656400] ? mark_held_locks+0x130/0x130 [ 60.660631] ? __ext4_get_inode_loc+0x470/0x1330 [ 60.665392] ? mark_held_locks+0x130/0x130 [ 60.669608] ? graph_lock+0x270/0x270 [ 60.673391] ? kasan_check_write+0x14/0x20 [ 60.677613] ? __brelse+0x104/0x180 [ 60.681255] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.686821] ? check_preemption_disabled+0x48/0x280 [ 60.691843] ? ext4_mark_inode_dirty+0xb20/0xb20 [ 60.696712] do_writepages+0x9a/0x1a0 [ 60.700495] ? ext4_mark_inode_dirty+0xb20/0xb20 [ 60.705230] ? do_writepages+0x9a/0x1a0 [ 60.709195] __writeback_single_inode+0x20a/0x1660 [ 60.714112] ? __mark_inode_dirty+0x1510/0x1510 [ 60.718771] ? find_held_lock+0x36/0x1c0 [ 60.722841] ? find_held_lock+0x36/0x1c0 [ 60.726895] ? wbc_attach_and_unlock_inode+0x5c0/0xa30 [ 60.732159] ? lock_downgrade+0x900/0x900 [ 60.736292] ? find_held_lock+0x13f/0x1c0 [ 60.740425] ? kasan_check_read+0x11/0x20 [ 60.744557] ? do_raw_spin_unlock+0xa7/0x330 [ 60.748951] ? do_raw_spin_trylock+0x270/0x270 [ 60.753513] ? __lock_is_held+0xb5/0x140 [ 60.757564] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.763105] ? wbc_attach_and_unlock_inode+0x675/0xa30 [ 60.768380] ? __writeback_single_inode+0x1660/0x1660 [ 60.773590] writeback_sb_inodes+0x71f/0x1210 [ 60.778100] ? wbc_detach_inode+0x960/0x960 [ 60.782406] ? lock_release+0xa00/0xa00 [ 60.786375] ? down_read_trylock+0xda/0x140 [ 60.790696] ? trylock_super+0x22/0x110 [ 60.794655] ? downgrade_write+0x270/0x270 [ 60.798876] ? queue_io+0x3dd/0x800 [ 60.802495] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.808025] __writeback_inodes_wb+0x1b9/0x340 [ 60.812610] ? writeback_sb_inodes+0x1210/0x1210 [ 60.817364] ? __lock_is_held+0xb5/0x140 [ 60.821416] wb_writeback+0xa73/0xfc0 [ 60.825206] ? writeback_inodes_wb.constprop.50+0x330/0x330 [ 60.830901] ? widen_string+0xe0/0x2e0 [ 60.834777] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 60.839953] ? print_usage_bug+0xc0/0xc0 [ 60.843996] ? string+0x225/0x2d0 [ 60.847437] ? widen_string+0x2e0/0x2e0 [ 60.851415] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 60.856446] ? find_next_bit+0x104/0x130 [ 60.860498] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 60.865498] ? find_next_bit+0x104/0x130 [ 60.869554] ? cpumask_next+0x41/0x50 [ 60.873340] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 60.878341] ? get_nr_dirty_inodes+0xd6/0x130 [ 60.882826] ? __local_bh_enable_ip+0x160/0x260 [ 60.887486] ? get_nr_dirty_pages+0x17c/0x1f0 [ 60.891976] ? _raw_spin_unlock_bh+0x30/0x40 [ 60.896367] ? inode_sleep_on_writeback+0x240/0x240 [ 60.901368] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.906892] ? check_preemption_disabled+0x48/0x280 [ 60.911894] ? wb_workfn+0x521/0x1790 [ 60.915680] ? wb_workfn+0x521/0x1790 [ 60.919467] ? __local_bh_enable_ip+0x160/0x260 [ 60.924123] wb_workfn+0x1008/0x1790 [ 60.927832] ? __lock_acquire+0x62f/0x4c20 [ 60.932071] ? inode_wait_for_writeback+0x40/0x40 [ 60.936901] ? mark_held_locks+0x130/0x130 [ 60.941117] ? __lock_is_held+0xb5/0x140 [ 60.945170] ? mark_held_locks+0x130/0x130 [ 60.949394] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.954918] ? update_load_avg+0x2470/0x2470 [ 60.959311] ? graph_lock+0x270/0x270 [ 60.963124] ? debug_object_deactivate+0x37d/0x480 [ 60.968040] ? lock_downgrade+0x900/0x900 [ 60.972172] ? run_rebalance_domains+0x500/0x500 [ 60.976941] ? find_held_lock+0x36/0x1c0 [ 60.980988] ? graph_lock+0x270/0x270 [ 60.984779] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.990305] ? check_preemption_disabled+0x48/0x280 [ 60.995308] ? __lock_is_held+0xb5/0x140 [ 60.999362] process_one_work+0xc90/0x1c40 [ 61.003579] ? mark_held_locks+0x130/0x130 [ 61.007805] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 61.012468] ? __bpf_trace_sched_wake_idle_without_ipi+0x10/0x10 [ 61.018595] ? __switch_to_asm+0x34/0x70 [ 61.022649] ? __switch_to_asm+0x34/0x70 [ 61.026710] ? __switch_to_asm+0x40/0x70 [ 61.030766] ? __switch_to_asm+0x34/0x70 [ 61.034809] ? __switch_to_asm+0x40/0x70 [ 61.038875] ? __switch_to_asm+0x34/0x70 [ 61.042919] ? __switch_to_asm+0x34/0x70 [ 61.046961] ? __switch_to_asm+0x34/0x70 [ 61.051003] ? __switch_to_asm+0x40/0x70 [ 61.055045] ? __switch_to_asm+0x34/0x70 [ 61.059086] ? __switch_to_asm+0x40/0x70 [ 61.063126] ? __switch_to_asm+0x34/0x70 [ 61.067182] ? __sched_text_start+0x8/0x8 [ 61.071325] ? graph_lock+0x270/0x270 [ 61.075129] ? lock_downgrade+0x900/0x900 [ 61.079263] ? kasan_check_read+0x11/0x20 [ 61.083397] ? do_raw_spin_unlock+0xa7/0x330 [ 61.087791] ? find_held_lock+0x36/0x1c0 [ 61.091846] ? lock_acquire+0x1ed/0x520 [ 61.095805] ? worker_thread+0x3e0/0x1390 [ 61.099947] ? kasan_check_write+0x14/0x20 [ 61.104174] ? do_raw_spin_lock+0x14f/0x350 [ 61.108480] ? __schedule+0x1ed0/0x1ed0 [ 61.112436] ? rwlock_bug.part.2+0x90/0x90 [ 61.116659] ? trace_hardirqs_on+0x310/0x310 [ 61.121072] worker_thread+0x17f/0x1390 [ 61.125031] ? __bpf_trace_sched_wake_idle_without_ipi+0x10/0x10 [ 61.131172] ? process_one_work+0x1c40/0x1c40 [ 61.135653] ? __schedule+0x9e6/0x1ed0 [ 61.139525] ? kmem_cache_alloc_trace+0x154/0x750 [ 61.144352] ? __sched_text_start+0x8/0x8 [ 61.148495] ? __kthread_parkme+0xce/0x1a0 [ 61.152720] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 61.157809] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 61.162905] ? lockdep_hardirqs_on+0x421/0x5c0 [ 61.167472] ? trace_hardirqs_on+0xbd/0x310 [ 61.171778] ? kasan_check_read+0x11/0x20 [ 61.175926] ? __kthread_parkme+0xce/0x1a0 [ 61.180144] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 61.185583] ? __schedule+0x1ed0/0x1ed0 [ 61.189545] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 61.194641] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 61.200162] ? __kthread_parkme+0xfb/0x1a0 [ 61.204399] ? process_one_work+0x1c40/0x1c40 [ 61.208879] kthread+0x35a/0x440 [ 61.212227] ? kthread_bind+0x40/0x40 [ 61.216017] ret_from_fork+0x3a/0x50 [ 61.220857] Kernel Offset: disabled [ 61.224535] Rebooting in 86400 seconds..