Starting Load/Save RF Kill Switch Status... [ 54.363545][ T6730] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6730 [ 54.373339][ T6730] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 54.379222][ T6730] CPU: 1 PID: 6730 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 54.387603][ T6730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.399046][ T6730] Call Trace: [ 54.402520][ T6730] dump_stack+0x188/0x20d [ 54.407015][ T6730] debug_smp_processor_id.cold+0x88/0x9b [ 54.412668][ T6730] ext4_mb_new_blocks+0xa77/0x3b30 [ 54.417787][ T6730] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.423256][ T6730] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.429070][ T6730] ext4_ext_map_blocks+0x2044/0x3410 [ 54.434350][ T6730] ? ext4_ext_release+0x10/0x10 [ 54.439186][ T6730] ? __down_timeout+0x2d0/0x2d0 [ 54.444027][ T6730] ? ext4_es_lookup_extent+0x41d/0xd30 [ 54.449477][ T6730] ext4_map_blocks+0x4cb/0x1640 [ 54.455180][ T6730] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.460705][ T6730] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.466248][ T6730] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.472434][ T6730] ? prandom_u32_state+0xe/0x170 [ 54.477970][ T6730] ? __brelse+0x84/0xa0 [ 54.482110][ T6730] ? __ext4_new_inode+0x144/0x57c0 [ 54.487828][ T6730] ext4_getblk+0xad/0x520 [ 54.492138][ T6730] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 54.497835][ T6730] ? ext4_free_inode+0x17e0/0x17e0 [ 54.502940][ T6730] ext4_bread+0x7c/0x380 [ 54.507501][ T6730] ? ext4_getblk+0x520/0x520 [ 54.512094][ T6730] ? dqget+0xff0/0xff0 [ 54.516150][ T6730] ext4_append+0x153/0x360 [ 54.520580][ T6730] ext4_mkdir+0x5e0/0xdf0 [ 54.524903][ T6730] ? ext4_rmdir+0xde0/0xde0 [ 54.529393][ T6730] ? security_inode_permission+0xc4/0xf0 [ 54.535114][ T6730] vfs_mkdir+0x419/0x690 [ 54.539433][ T6730] do_mkdirat+0x21e/0x280 [ 54.543827][ T6730] ? __ia32_sys_mknod+0xb0/0xb0 [ 54.548991][ T6730] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.554962][ T6730] ? do_syscall_64+0x21/0x7d0 [ 54.559717][ T6730] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.565682][ T6730] do_syscall_64+0xf6/0x7d0 [ 54.570175][ T6730] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 54.576050][ T6730] RIP: 0033:0x7fdf7a320687 [ 54.580563][ T6730] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 [ 54.600713][ T6730] RSP: 002b:00007ffd5e5669c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.609111][ T6730] RAX: ffffffffffffffda RBX: 0000561ed2516985 RCX: 00007fdf7a320687 [ 54.617206][ T6730] RDX: 00007ffd5e566890 RSI: 00000000000001ed RDI: 0000561ed2516985 [ 54.625183][ T6730] RBP: 00007fdf7a320680 R08: 0000000000000100 R09: 0000000000000000 [ 54.633928][ T6730] R10: 0000561ed2516980 R11: 0000000000000246 R12: 00000000000001ed [ 54.641891][ T6730] R13: 00007ffd5e566b50 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.145' (ECDSA) to the list of known hosts. syzkaller login: [ 58.899705][ T2560] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:5/2560 [ 58.908966][ T2560] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.915262][ T2560] CPU: 0 PID: 2560 Comm: kworker/u4:5 Not tainted 5.7.0-syzkaller #0 [ 58.923362][ T2560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.933579][ T2560] Workqueue: writeback wb_workfn (flush-8:0) [ 58.939663][ T2560] Call Trace: [ 58.943984][ T2560] dump_stack+0x188/0x20d [ 58.948300][ T2560] debug_smp_processor_id.cold+0x88/0x9b [ 58.953935][ T2560] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.959026][ T2560] ? __kmalloc+0x62f/0x7a0 [ 58.963428][ T2560] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.968979][ T2560] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.974727][ T2560] ext4_ext_map_blocks+0x2044/0x3410 [ 58.980150][ T2560] ? ext4_ext_release+0x10/0x10 [ 58.985045][ T2560] ? __down_timeout+0x2d0/0x2d0 [ 58.990946][ T2560] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.996420][ T2560] ? debug_smp_processor_id+0x2f/0x185 [ 59.001944][ T2560] ext4_map_blocks+0x4cb/0x1640 [ 59.006850][ T2560] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.012051][ T2560] ? debug_smp_processor_id+0x2f/0x185 [ 59.017547][ T2560] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.023102][ T2560] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.029094][ T2560] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.034564][ T2560] ext4_writepages+0x1ab7/0x3400 [ 59.039532][ T2560] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.045165][ T2560] ? __lock_acquire+0x2224/0x48a0 [ 59.050254][ T2560] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.056240][ T2560] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.062233][ T2560] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.067873][ T2560] ? do_writepages+0xfa/0x2a0 [ 59.073197][ T2560] do_writepages+0xfa/0x2a0 [ 59.078409][ T2560] ? page_writeback_cpu_online+0x10/0x10 [ 59.084061][ T2560] ? debug_smp_processor_id+0x2f/0x185 [ 59.089966][ T2560] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.095954][ T2560] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.101938][ T2560] ? lock_downgrade+0x840/0x840 [ 59.106806][ T2560] __writeback_single_inode+0x12a/0x1410 [ 59.112449][ T2560] ? _raw_spin_unlock+0x24/0x40 [ 59.117304][ T2560] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 59.123295][ T2560] writeback_sb_inodes+0x515/0xdd0 [ 59.128435][ T2560] ? __writeback_single_inode+0x1410/0x1410 [ 59.134356][ T2560] __writeback_inodes_wb+0xc3/0x250 [ 59.139573][ T2560] wb_writeback+0x910/0xd90 [ 59.144088][ T2560] ? print_usage_bug+0x240/0x240 2020/06/15 16:09:38 fuzzer started [ 59.149050][ T2560] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 59.155398][ T2560] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 59.161325][ T2560] ? cpumask_next+0x3c/0x40 [ 59.166628][ T2560] ? get_nr_dirty_inodes+0xd6/0x130 [ 59.171851][ T2560] wb_workfn+0xadf/0x10d0 [ 59.176224][ T2560] ? inode_wait_for_writeback+0x30/0x30 [ 59.181788][ T2560] ? debug_smp_processor_id+0x2f/0x185 [ 59.187277][ T2560] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.193154][ T2560] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.199160][ T2560] process_one_work+0x965/0x16a0 [ 59.204127][ T2560] ? lock_release+0x800/0x800 [ 59.209052][ T2560] ? pwq_dec_nr_in_flight+0x310/0x310 [ 59.214459][ T2560] ? rwlock_bug.part.0+0x90/0x90 [ 59.219427][ T2560] worker_thread+0x96/0xe10 [ 59.223961][ T2560] ? process_one_work+0x16a0/0x16a0 [ 59.229275][ T2560] kthread+0x388/0x470 [ 59.233358][ T2560] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.239092][ T2560] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.244831][ T2560] ret_from_fork+0x24/0x30 2020/06/15 16:09:39 connecting to host at 10.128.0.26:42441 2020/06/15 16:09:39 checking machine... 2020/06/15 16:09:39 checking revisions... 2020/06/15 16:09:39 testing simple program... [ 59.701835][ T6797] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6797 [ 59.710944][ T6797] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.716978][ T6797] CPU: 0 PID: 6797 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.724893][ T6797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.734949][ T6797] Call Trace: [ 59.738275][ T6797] dump_stack+0x188/0x20d [ 59.742627][ T6797] debug_smp_processor_id.cold+0x88/0x9b [ 59.748289][ T6797] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.753427][ T6797] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.758928][ T6797] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.764676][ T6797] ext4_ext_map_blocks+0x2044/0x3410 [ 59.770109][ T6797] ? ext4_ext_release+0x10/0x10 [ 59.774952][ T6797] ? __down_timeout+0x2d0/0x2d0 [ 59.779804][ T6797] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.785526][ T6797] ext4_map_blocks+0x4cb/0x1640 [ 59.790390][ T6797] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.795573][ T6797] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.801105][ T6797] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.807079][ T6797] ? prandom_u32_state+0xe/0x170 [ 59.812014][ T6797] ? __brelse+0x84/0xa0 [ 59.816585][ T6797] ? __ext4_new_inode+0x144/0x57c0 [ 59.821692][ T6797] ext4_getblk+0xad/0x520 [ 59.826009][ T6797] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.831723][ T6797] ? ext4_free_inode+0x17e0/0x17e0 [ 59.837259][ T6797] ext4_bread+0x7c/0x380 [ 59.841612][ T6797] ? ext4_getblk+0x520/0x520 [ 59.846189][ T6797] ? dqget+0xff0/0xff0 [ 59.850277][ T6797] ext4_append+0x153/0x360 [ 59.854707][ T6797] ext4_mkdir+0x5e0/0xdf0 [ 59.859018][ T6797] ? ext4_rmdir+0xde0/0xde0 [ 59.863638][ T6797] ? security_inode_permission+0xc4/0xf0 [ 59.869272][ T6797] vfs_mkdir+0x419/0x690 [ 59.873504][ T6797] do_mkdirat+0x21e/0x280 [ 59.877980][ T6797] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.883247][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.889324][ T6797] ? do_syscall_64+0x21/0x7d0 [ 59.893999][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.899977][ T6797] do_syscall_64+0xf6/0x7d0 [ 59.904484][ T6797] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.911069][ T6797] RIP: 0033:0x4b02a0 [ 59.915049][ T6797] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 59.934656][ T6797] RSP: 002b:000000c0000e14b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.943078][ T6797] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.951056][ T6797] RDX: 00000000000001c0 RSI: 000000c000026a60 RDI: ffffffffffffff9c [ 59.959181][ T6797] RBP: 000000c0000e1510 R08: 0000000000000000 R09: 0000000000000000 [ 59.967331][ T6797] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.975297][ T6797] R13: 0000000000000054 R14: 0000000000000053 R15: 0000000000000100 [ 59.992782][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.002024][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.005652][ T6809] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6809 [ 60.007922][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.007956][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.017418][ T6809] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.025188][ T1154] Call Trace: [ 60.025209][ T1154] dump_stack+0x188/0x20d [ 60.025231][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 60.025244][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.025257][ T1154] ? __kmalloc+0x62f/0x7a0 [ 60.025280][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.025298][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.075509][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 60.080788][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.085632][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 60.090497][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.095942][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 60.100787][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.105967][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 60.111414][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.116954][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.122943][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.128413][ T1154] ext4_writepages+0x1ab7/0x3400 [ 60.133371][ T1154] ? mark_lock+0x30/0xdd0 [ 60.137714][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.143349][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.148979][ T1154] ? do_writepages+0xfa/0x2a0 [ 60.153638][ T1154] do_writepages+0xfa/0x2a0 [ 60.158132][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 60.163762][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 60.168791][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 60.173973][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 60.178809][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.184511][ T1154] ? collapse_file+0x3575/0x4300 [ 60.189544][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.195604][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.200785][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.206754][ T1154] collapse_file+0x357f/0x4300 [ 60.211515][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 60.216869][ T1154] ? khugepaged+0x24fa/0x3f80 [ 60.221542][ T1154] khugepaged+0x3049/0x3f80 [ 60.226062][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.231681][ T1154] ? lock_downgrade+0x840/0x840 [ 60.236515][ T1154] ? finish_wait+0x260/0x260 [ 60.241116][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.246959][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.252951][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 60.257964][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.263596][ T1154] kthread+0x388/0x470 [ 60.267650][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.274319][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.280044][ T1154] ret_from_fork+0x24/0x30 [ 60.284466][ T6809] CPU: 1 PID: 6809 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.292726][ T6809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.302794][ T6809] Call Trace: [ 60.306134][ T6809] dump_stack+0x188/0x20d [ 60.310489][ T6809] debug_smp_processor_id.cold+0x88/0x9b [ 60.316141][ T6809] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.321297][ T6809] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.326755][ T6809] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.332473][ T6809] ext4_ext_map_blocks+0x2044/0x3410 [ 60.338105][ T6809] ? ext4_ext_release+0x10/0x10 [ 60.343333][ T6809] ? __down_timeout+0x2d0/0x2d0 [ 60.348200][ T6809] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.353684][ T6809] ext4_map_blocks+0x4cb/0x1640 [ 60.358979][ T6809] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.364172][ T6809] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.369709][ T6809] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.375670][ T6809] ? prandom_u32_state+0xe/0x170 [ 60.380689][ T6809] ? __brelse+0x84/0xa0 [ 60.384843][ T6809] ? __ext4_new_inode+0x144/0x57c0 [ 60.390726][ T6809] ext4_getblk+0xad/0x520 [ 60.395059][ T6809] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.400818][ T6809] ? ext4_free_inode+0x17e0/0x17e0 [ 60.405934][ T6809] ext4_bread+0x7c/0x380 [ 60.410167][ T6809] ? ext4_getblk+0x520/0x520 [ 60.414734][ T6809] ? dqget+0xff0/0xff0 [ 60.418798][ T6809] ext4_append+0x153/0x360 [ 60.423211][ T6809] ext4_mkdir+0x5e0/0xdf0 [ 60.427520][ T6809] ? ext4_rmdir+0xde0/0xde0 [ 60.432214][ T6809] ? security_inode_permission+0xc4/0xf0 [ 60.437897][ T6809] vfs_mkdir+0x419/0x690 [ 60.442145][ T6809] do_mkdirat+0x21e/0x280 [ 60.446467][ T6809] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.451387][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.457966][ T6809] ? do_syscall_64+0x21/0x7d0 [ 60.462624][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.468598][ T6809] do_syscall_64+0xf6/0x7d0 [ 60.473098][ T6809] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.478967][ T6809] RIP: 0033:0x45bed7 [ 60.482856][ T6809] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.502449][ T6809] RSP: 002b:00007fff2753d948 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.510849][ T6809] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bed7 [ 60.518912][ T6809] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007fff2753db20 [ 60.526869][ T6809] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003440 [ 60.534950][ T6809] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.542911][ T6809] R13: 00007fff2753db20 R14: 8421084210842109 R15: 00007fff2753db2c [ 60.565357][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.574622][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.580766][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.588658][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.598722][ T1154] Call Trace: [ 60.602024][ T1154] dump_stack+0x188/0x20d [ 60.606364][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 60.612000][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.617133][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.622611][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.628784][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 60.634106][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.639002][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 60.643861][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.649938][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 60.654803][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.655750][ T6810] IPVS: ftp: loaded support on port[0] = 21 [ 60.659997][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 60.660017][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.660031][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.660045][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.660061][ T1154] ext4_writepages+0x1ab7/0x3400 [ 60.660078][ T1154] ? mark_lock+0x30/0xdd0 [ 60.697630][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.703295][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.703840][ T6810] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6810 [ 60.708943][ T1154] ? do_writepages+0xfa/0x2a0 [ 60.718480][ T6810] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.723052][ T1154] do_writepages+0xfa/0x2a0 [ 60.723072][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 60.723087][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 60.723113][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 60.749273][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 60.754137][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.759847][ T1154] ? collapse_file+0x3575/0x4300 [ 60.764783][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.770843][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.776024][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.782718][ T1154] collapse_file+0x357f/0x4300 [ 60.787501][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 60.792868][ T1154] ? khugepaged+0x24fa/0x3f80 [ 60.797547][ T1154] khugepaged+0x3049/0x3f80 [ 60.802058][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.807676][ T1154] ? lock_downgrade+0x840/0x840 [ 60.812510][ T1154] ? finish_wait+0x260/0x260 [ 60.817104][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.822915][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.829324][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 60.834334][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.839964][ T1154] kthread+0x388/0x470 [ 60.844042][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.849756][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.855489][ T1154] ret_from_fork+0x24/0x30 [ 60.860604][ T6810] CPU: 1 PID: 6810 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.868857][ T6810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.879094][ T6810] Call Trace: [ 60.882491][ T6810] dump_stack+0x188/0x20d [ 60.886824][ T6810] debug_smp_processor_id.cold+0x88/0x9b [ 60.892256][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.892502][ T6810] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.901580][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.906661][ T6810] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.917997][ T6810] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.923717][ T6810] ext4_ext_map_blocks+0x2044/0x3410 [ 60.928995][ T6810] ? ext4_ext_release+0x10/0x10 [ 60.933844][ T6810] ? __down_timeout+0x2d0/0x2d0 [ 60.938692][ T6810] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.944140][ T6810] ext4_map_blocks+0x4cb/0x1640 [ 60.948993][ T6810] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.954173][ T6810] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.959789][ T6810] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.966128][ T6810] ? prandom_u32_state+0xe/0x170 [ 60.971223][ T6810] ? __brelse+0x84/0xa0 [ 60.975361][ T6810] ? __ext4_new_inode+0x144/0x57c0 [ 60.980459][ T6810] ext4_getblk+0xad/0x520 [ 60.984788][ T6810] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.990512][ T6810] ? ext4_free_inode+0x17e0/0x17e0 [ 60.995621][ T6810] ext4_bread+0x7c/0x380 [ 60.999858][ T6810] ? ext4_getblk+0x520/0x520 [ 61.004434][ T6810] ? dqget+0xff0/0xff0 [ 61.008509][ T6810] ext4_append+0x153/0x360 [ 61.012932][ T6810] ext4_mkdir+0x5e0/0xdf0 [ 61.017277][ T6810] ? ext4_rmdir+0xde0/0xde0 [ 61.021779][ T6810] ? security_inode_permission+0xc4/0xf0 [ 61.027405][ T6810] vfs_mkdir+0x419/0x690 [ 61.031638][ T6810] do_mkdirat+0x21e/0x280 [ 61.035968][ T6810] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.040804][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.046818][ T6810] ? do_syscall_64+0x21/0x7d0 [ 61.051494][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.057481][ T6810] do_syscall_64+0xf6/0x7d0 [ 61.061980][ T6810] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.067857][ T6810] RIP: 0033:0x45bed7 [ 61.071756][ T6810] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.091878][ T6810] RSP: 002b:00007fff2753d838 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 61.100271][ T6810] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bed7 [ 61.108225][ T6810] RDX: 00007fff2753d883 RSI: 00000000000001ff RDI: 00007fff2753d880 [ 61.116181][ T6810] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.124138][ T6810] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185c0 [ 61.132142][ T6810] R13: 00007fff2753d870 R14: 0000000000000000 R15: 00007fff2753d880 [ 61.140130][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.148059][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.158114][ T1154] Call Trace: [ 61.161424][ T1154] dump_stack+0x188/0x20d [ 61.165805][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 61.171479][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.176609][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.182085][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.188265][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 61.193570][ T1154] ? ext4_ext_release+0x10/0x10 [ 61.198470][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 61.203327][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.208797][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 61.214187][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.219387][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 61.224856][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.230409][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.236406][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.241874][ T1154] ext4_writepages+0x1ab7/0x3400 [ 61.246828][ T1154] ? mark_lock+0x30/0xdd0 [ 61.251212][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.256887][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.262534][ T1154] ? do_writepages+0xfa/0x2a0 [ 61.267222][ T1154] do_writepages+0xfa/0x2a0 [ 61.271747][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 61.277393][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 61.282436][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 61.287657][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 61.292541][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.298273][ T1154] ? collapse_file+0x3575/0x4300 [ 61.303229][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.309314][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.314532][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.314657][ T6810] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6810 [ 61.320535][ T1154] collapse_file+0x357f/0x4300 [ 61.320565][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 61.320577][ T1154] ? khugepaged+0x24fa/0x3f80 [ 61.320608][ T1154] khugepaged+0x3049/0x3f80 [ 61.320644][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.330239][ T6810] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.334935][ T1154] ? lock_downgrade+0x840/0x840 [ 61.365705][ T1154] ? finish_wait+0x260/0x260 [ 61.370285][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.376088][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.382089][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 61.387110][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.392732][ T1154] kthread+0x388/0x470 [ 61.396785][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.402846][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.408561][ T1154] ret_from_fork+0x24/0x30 [ 61.412996][ T6810] CPU: 1 PID: 6810 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.421241][ T6810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.431387][ T6810] Call Trace: [ 61.434685][ T6810] dump_stack+0x188/0x20d [ 61.439041][ T6810] debug_smp_processor_id.cold+0x88/0x9b [ 61.444695][ T6810] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.449824][ T6810] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.455295][ T6810] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.461026][ T6810] ext4_ext_map_blocks+0x2044/0x3410 [ 61.466608][ T6810] ? ext4_ext_release+0x10/0x10 [ 61.471464][ T6810] ? __down_timeout+0x2d0/0x2d0 [ 61.476322][ T6810] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.481810][ T6810] ext4_map_blocks+0x4cb/0x1640 [ 61.486684][ T6810] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.491881][ T6810] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.497487][ T6810] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.503460][ T6810] ? prandom_u32_state+0xe/0x170 [ 61.508412][ T6810] ? __brelse+0x84/0xa0 [ 61.512551][ T6810] ? __ext4_new_inode+0x144/0x57c0 [ 61.517670][ T6810] ext4_getblk+0xad/0x520 [ 61.522003][ T6810] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.527731][ T6810] ? ext4_free_inode+0x17e0/0x17e0 [ 61.532861][ T6810] ext4_bread+0x7c/0x380 [ 61.537173][ T6810] ? ext4_getblk+0x520/0x520 [ 61.541770][ T6810] ? dqget+0xff0/0xff0 [ 61.545951][ T6810] ext4_append+0x153/0x360 [ 61.550376][ T6810] ext4_mkdir+0x5e0/0xdf0 [ 61.554721][ T6810] ? ext4_rmdir+0xde0/0xde0 [ 61.559228][ T6810] ? security_inode_permission+0xc4/0xf0 [ 61.564860][ T6810] vfs_mkdir+0x419/0x690 [ 61.569098][ T6810] do_mkdirat+0x21e/0x280 [ 61.573414][ T6810] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.578261][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.584240][ T6810] ? do_syscall_64+0x21/0x7d0 [ 61.588895][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.594858][ T6810] do_syscall_64+0xf6/0x7d0 [ 61.599388][ T6810] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.605534][ T6810] RIP: 0033:0x45bed7 [ 61.609426][ T6810] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.629139][ T6810] RSP: 002b:00007fff2753d838 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 61.637536][ T6810] RAX: ffffffffffffffda RBX: 000000000000ef79 RCX: 000000000045bed7 [ 61.645495][ T6810] RDX: 00007fff2753d883 RSI: 00000000000001ff RDI: 00007fff2753d880 [ 61.653477][ T6810] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.661712][ T6810] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 2020/06/15 16:09:41 building call list... [ 61.669681][ T6810] R13: 00007fff2753d870 R14: 000000000000ef24 R15: 00007fff2753d880 [ 61.940864][ T105] tipc: TX() has been purged, node left! executing program [ 63.288678][ T6836] can: request_module (can-proto-0) failed. [ 63.976665][ T6836] can: request_module (can-proto-0) failed. [ 63.988878][ T6836] can: request_module (can-proto-0) failed.