[ 56.085268][ T299] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/299 [ 56.094386][ T299] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 56.100389][ T299] CPU: 1 PID: 299 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 56.108439][ T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.119131][ T299] Workqueue: writeback wb_workfn (flush-8:0) [ 56.125107][ T299] Call Trace: [ 56.128394][ T299] dump_stack+0x188/0x20d [ 56.132756][ T299] debug_smp_processor_id.cold+0x88/0x9b [ 56.138382][ T299] ext4_mb_new_blocks+0xa77/0x3b30 [ 56.143484][ T299] ? __kmalloc+0x62f/0x7a0 [ 56.148064][ T299] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.154378][ T299] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.160089][ T299] ext4_ext_map_blocks+0x2044/0x3410 [ 56.165368][ T299] ? ext4_ext_release+0x10/0x10 [ 56.170219][ T299] ? __down_timeout+0x2d0/0x2d0 [ 56.175061][ T299] ? ext4_es_lookup_extent+0x41d/0xd30 [ 56.180503][ T299] ? debug_smp_processor_id+0x2f/0x185 [ 56.185952][ T299] ext4_map_blocks+0x4cb/0x1640 [ 56.190792][ T299] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.195990][ T299] ? debug_smp_processor_id+0x2f/0x185 [ 56.201437][ T299] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.206970][ T299] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.212924][ T299] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.218371][ T299] ext4_writepages+0x1ab7/0x3400 [ 56.223305][ T299] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.228911][ T299] ? __lock_acquire+0x2224/0x48a0 [ 56.233929][ T299] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.239887][ T299] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.245898][ T299] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.251673][ T299] ? do_writepages+0xfa/0x2a0 [ 56.256346][ T299] do_writepages+0xfa/0x2a0 [ 56.260839][ T299] ? page_writeback_cpu_online+0x10/0x10 [ 56.266479][ T299] ? debug_smp_processor_id+0x2f/0x185 [ 56.271935][ T299] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.277460][ T299] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.283417][ T299] ? lock_downgrade+0x840/0x840 [ 56.288249][ T299] __writeback_single_inode+0x12a/0x1410 [ 56.293870][ T299] ? _raw_spin_unlock+0x24/0x40 [ 56.298709][ T299] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.304668][ T299] writeback_sb_inodes+0x515/0xdd0 [ 56.309783][ T299] ? __writeback_single_inode+0x1410/0x1410 [ 56.315671][ T299] __writeback_inodes_wb+0xc3/0x250 [ 56.320854][ T299] wb_writeback+0x910/0xd90 [ 56.325339][ T299] ? print_usage_bug+0x240/0x240 [ 56.330269][ T299] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.336578][ T299] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.342451][ T299] ? cpumask_next+0x3c/0x40 [ 56.346933][ T299] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.352109][ T299] wb_workfn+0xadf/0x10d0 [ 56.356420][ T299] ? inode_wait_for_writeback+0x30/0x30 [ 56.361939][ T299] ? debug_smp_processor_id+0x2f/0x185 [ 56.367377][ T299] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.372909][ T299] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.379862][ T299] process_one_work+0x965/0x16a0 [ 56.384808][ T299] ? lock_release+0x800/0x800 [ 56.389598][ T299] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.394958][ T299] ? rwlock_bug.part.0+0x90/0x90 [ 56.399911][ T299] worker_thread+0x96/0xe10 [ 56.404403][ T299] ? process_one_work+0x16a0/0x16a0 [ 56.409586][ T299] kthread+0x388/0x470 [ 56.413632][ T299] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.419350][ T299] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.425046][ T299] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.32' (ECDSA) to the list of known hosts. 2020/06/10 15:30:39 fuzzer started 2020/06/10 15:30:40 connecting to host at 10.128.0.26:33369 2020/06/10 15:30:40 checking machine... 2020/06/10 15:30:40 checking revisions... 2020/06/10 15:30:40 testing simple program... [ 58.213579][ T6797] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6797 [ 58.222791][ T6797] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.228805][ T6797] CPU: 1 PID: 6797 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.236692][ T6797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.246745][ T6797] Call Trace: [ 58.250043][ T6797] dump_stack+0x188/0x20d [ 58.254406][ T6797] debug_smp_processor_id.cold+0x88/0x9b [ 58.260061][ T6797] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.265184][ T6797] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.270630][ T6797] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.276378][ T6797] ext4_ext_map_blocks+0x2044/0x3410 [ 58.281655][ T6797] ? ext4_ext_release+0x10/0x10 [ 58.286497][ T6797] ? __down_timeout+0x2d0/0x2d0 [ 58.291328][ T6797] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.296770][ T6797] ext4_map_blocks+0x4cb/0x1640 [ 58.301621][ T6797] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.306807][ T6797] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.312339][ T6797] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.318297][ T6797] ? prandom_u32_state+0xe/0x170 [ 58.323226][ T6797] ? __brelse+0x84/0xa0 [ 58.327371][ T6797] ? __ext4_new_inode+0x144/0x57c0 [ 58.332459][ T6797] ext4_getblk+0xad/0x520 [ 58.336771][ T6797] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.342480][ T6797] ? ext4_free_inode+0x17e0/0x17e0 [ 58.348609][ T6797] ext4_bread+0x7c/0x380 [ 58.352839][ T6797] ? ext4_getblk+0x520/0x520 [ 58.357768][ T6797] ? dqget+0xff0/0xff0 [ 58.361864][ T6797] ext4_append+0x153/0x360 [ 58.366267][ T6797] ext4_mkdir+0x5e0/0xdf0 [ 58.370735][ T6797] ? ext4_rmdir+0xde0/0xde0 [ 58.375225][ T6797] ? security_inode_permission+0xc4/0xf0 [ 58.380893][ T6797] vfs_mkdir+0x419/0x690 [ 58.385121][ T6797] do_mkdirat+0x21e/0x280 [ 58.389450][ T6797] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.394280][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.400270][ T6797] ? do_syscall_64+0x21/0x7d0 [ 58.404937][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.410906][ T6797] do_syscall_64+0xf6/0x7d0 [ 58.415389][ T6797] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.421361][ T6797] RIP: 0033:0x4b02a0 [ 58.425235][ 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 [ 58.444872][ T6797] RSP: 002b:000000c0000d94b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.453264][ T6797] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 58.461213][ T6797] RDX: 00000000000001c0 RSI: 000000c00009ebe0 RDI: ffffffffffffff9c [ 58.469203][ T6797] RBP: 000000c0000d9510 R08: 0000000000000000 R09: 0000000000000000 [ 58.477856][ T6797] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.485817][ T6797] R13: 0000000000000060 R14: 000000000000005f R15: 0000000000000100 [ 58.502984][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 58.512260][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.517699][ T6804] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6804 [ 58.518221][ T1154] CPU: 1 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.527598][ T6804] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.535384][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.535389][ T1154] Call Trace: [ 58.535410][ T1154] dump_stack+0x188/0x20d [ 58.535432][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 58.564491][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.569596][ T1154] ? __kmalloc+0x62f/0x7a0 [ 58.574008][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.579468][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.585172][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 58.590441][ T1154] ? ext4_ext_release+0x10/0x10 [ 58.595296][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 58.600136][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.605580][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 58.610417][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.615596][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 58.621054][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.626580][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.632628][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.638069][ T1154] ext4_writepages+0x1ab7/0x3400 [ 58.642990][ T1154] ? mark_lock+0x30/0xdd0 [ 58.647313][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.652946][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.658558][ T1154] ? do_writepages+0xfa/0x2a0 [ 58.663228][ T1154] do_writepages+0xfa/0x2a0 [ 58.667715][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 58.673327][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 58.678331][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 58.683521][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 58.688376][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 58.694088][ T1154] ? collapse_file+0x3575/0x4300 [ 58.699028][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 58.705081][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 58.710260][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.716223][ T1154] collapse_file+0x357f/0x4300 [ 58.720980][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 58.726330][ T1154] ? khugepaged+0x24fa/0x3f80 [ 58.731011][ T1154] khugepaged+0x3049/0x3f80 [ 58.735525][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.741138][ T1154] ? lock_downgrade+0x840/0x840 [ 58.745969][ T1154] ? finish_wait+0x260/0x260 [ 58.750542][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 58.756338][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.762313][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 58.767318][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.772930][ T1154] kthread+0x388/0x470 [ 58.777419][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.783131][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.788830][ T1154] ret_from_fork+0x24/0x30 [ 58.793256][ T6804] CPU: 0 PID: 6804 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.801497][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.811571][ T6804] Call Trace: [ 58.814866][ T6804] dump_stack+0x188/0x20d [ 58.819208][ T6804] debug_smp_processor_id.cold+0x88/0x9b [ 58.824839][ T6804] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.829954][ T6804] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.835406][ T6804] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.841134][ T6804] ext4_ext_map_blocks+0x2044/0x3410 [ 58.846413][ T6804] ? ext4_ext_release+0x10/0x10 [ 58.851271][ T6804] ? __down_timeout+0x2d0/0x2d0 [ 58.856183][ T6804] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.861807][ T6804] ext4_map_blocks+0x4cb/0x1640 [ 58.862486][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 58.866659][ T6804] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.866675][ T6804] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.866689][ T6804] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.866703][ T6804] ? prandom_u32_state+0xe/0x170 [ 58.866719][ T6804] ? __brelse+0x84/0xa0 [ 58.866733][ T6804] ? __ext4_new_inode+0x144/0x57c0 [ 58.866752][ T6804] ext4_getblk+0xad/0x520 [ 58.875817][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.880945][ T6804] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.922395][ T6804] ? ext4_free_inode+0x17e0/0x17e0 [ 58.927506][ T6804] ext4_bread+0x7c/0x380 [ 58.931729][ T6804] ? ext4_getblk+0x520/0x520 [ 58.936298][ T6804] ? dqget+0xff0/0xff0 [ 58.940357][ T6804] ext4_append+0x153/0x360 [ 58.944759][ T6804] ext4_mkdir+0x5e0/0xdf0 [ 58.949074][ T6804] ? ext4_rmdir+0xde0/0xde0 [ 58.953567][ T6804] ? security_inode_permission+0xc4/0xf0 [ 58.959200][ T6804] vfs_mkdir+0x419/0x690 [ 58.963425][ T6804] do_mkdirat+0x21e/0x280 [ 58.967740][ T6804] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.972585][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.978563][ T6804] ? do_syscall_64+0x21/0x7d0 [ 58.983231][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.989214][ T6804] do_syscall_64+0xf6/0x7d0 [ 58.993707][ T6804] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.999580][ T6804] RIP: 0033:0x45bee7 [ 59.003469][ T6804] 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 [ 59.023226][ T6804] RSP: 002b:00007ffcfa1f93f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.031616][ T6804] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.039567][ T6804] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffcfa1f95d0 [ 59.047531][ T6804] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003040 [ 59.055496][ T6804] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.063457][ T6804] R13: 00007ffcfa1f95d0 R14: 8421084210842109 R15: 00007ffcfa1f95dc [ 59.071444][ T1154] CPU: 1 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.079353][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.089407][ T1154] Call Trace: [ 59.092712][ T1154] dump_stack+0x188/0x20d [ 59.097049][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 59.102691][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.107819][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.113288][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.119454][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 59.124751][ T1154] ? ext4_ext_release+0x10/0x10 [ 59.129623][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 59.134478][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.139953][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 59.144832][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.150034][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 59.155553][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.161190][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.167174][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.172644][ T1154] ext4_writepages+0x1ab7/0x3400 [ 59.177587][ T1154] ? mark_lock+0x30/0xdd0 [ 59.181931][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.187616][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.188470][ T6805] IPVS: ftp: loaded support on port[0] = 21 [ 59.193262][ T1154] ? do_writepages+0xfa/0x2a0 [ 59.203820][ T1154] do_writepages+0xfa/0x2a0 [ 59.208423][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 59.214061][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 59.219101][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 59.224306][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 59.229214][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.234938][ T1154] ? collapse_file+0x3575/0x4300 [ 59.239880][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.245969][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.251174][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.252835][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6805 [ 59.257166][ T1154] collapse_file+0x357f/0x4300 [ 59.257199][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 59.266598][ T6805] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.271298][ T1154] ? khugepaged+0x24fa/0x3f80 [ 59.287219][ T1154] khugepaged+0x3049/0x3f80 [ 59.291731][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.297376][ T1154] ? lock_downgrade+0x840/0x840 [ 59.302249][ T1154] ? finish_wait+0x260/0x260 [ 59.306832][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.312629][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.318619][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 59.323750][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.329377][ T1154] kthread+0x388/0x470 [ 59.333434][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.339153][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.344863][ T1154] ret_from_fork+0x24/0x30 [ 59.349283][ T6805] CPU: 0 PID: 6805 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.357530][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.367674][ T6805] Call Trace: [ 59.370967][ T6805] dump_stack+0x188/0x20d [ 59.375305][ T6805] debug_smp_processor_id.cold+0x88/0x9b [ 59.380942][ T6805] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.386068][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.386265][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 59.391533][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.391559][ T6805] ext4_ext_map_blocks+0x2044/0x3410 [ 59.391581][ T6805] ? ext4_ext_release+0x10/0x10 [ 59.391611][ T6805] ? __down_timeout+0x2d0/0x2d0 [ 59.400664][ T1154] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.406312][ T6805] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.406333][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 59.406354][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.406368][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.406386][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.454320][ T6805] ? prandom_u32_state+0xe/0x170 [ 59.459280][ T6805] ? __brelse+0x84/0xa0 [ 59.463420][ T6805] ? __ext4_new_inode+0x144/0x57c0 [ 59.468521][ T6805] ext4_getblk+0xad/0x520 [ 59.472867][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.478577][ T6805] ? ext4_free_inode+0x17e0/0x17e0 [ 59.483686][ T6805] ext4_bread+0x7c/0x380 [ 59.487911][ T6805] ? ext4_getblk+0x520/0x520 [ 59.492480][ T6805] ? dqget+0xff0/0xff0 [ 59.496555][ T6805] ext4_append+0x153/0x360 [ 59.500958][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 59.505289][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 59.509780][ T6805] ? security_inode_permission+0xc4/0xf0 [ 59.515407][ T6805] vfs_mkdir+0x419/0x690 [ 59.519634][ T6805] do_mkdirat+0x21e/0x280 [ 59.523947][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.528787][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.534752][ T6805] ? do_syscall_64+0x21/0x7d0 [ 59.539413][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.545383][ T6805] do_syscall_64+0xf6/0x7d0 [ 59.549871][ T6805] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.556027][ T6805] RIP: 0033:0x45bee7 [ 59.559907][ T6805] 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 [ 59.579490][ T6805] RSP: 002b:00007ffcfa1f92e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 59.587882][ T6805] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.595833][ T6805] RDX: 00007ffcfa1f9333 RSI: 00000000000001ff RDI: 00007ffcfa1f9330 [ 59.603785][ T6805] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.611841][ T6805] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 59.619797][ T6805] R13: 00007ffcfa1f9320 R14: 0000000000000000 R15: 00007ffcfa1f9330 [ 59.627798][ T1154] CPU: 1 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.635698][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.645757][ T1154] Call Trace: [ 59.649071][ T1154] dump_stack+0x188/0x20d [ 59.653420][ T1154] debug_smp_processor_id.cold+0x88/0x9b [ 59.659577][ T1154] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.664736][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.670204][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.676359][ T1154] ext4_ext_map_blocks+0x2044/0x3410 [ 59.681653][ T1154] ? ext4_ext_release+0x10/0x10 [ 59.686522][ T1154] ? __down_timeout+0x2d0/0x2d0 [ 59.691414][ T1154] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.696882][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 59.701747][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.706944][ T1154] ? debug_smp_processor_id+0x2f/0x185 [ 59.712412][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.717966][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.723959][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.729427][ T1154] ext4_writepages+0x1ab7/0x3400 [ 59.734377][ T1154] ? mark_lock+0x30/0xdd0 [ 59.738762][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.744424][ T1154] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.750063][ T1154] ? do_writepages+0xfa/0x2a0 [ 59.754753][ T1154] do_writepages+0xfa/0x2a0 [ 59.759269][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 59.764904][ T1154] ? do_raw_spin_lock+0x129/0x2e0 [ 59.769929][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 59.773958][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6805 [ 59.775124][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 59.775144][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.775163][ T1154] ? collapse_file+0x3575/0x4300 [ 59.784565][ T6805] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.789387][ T1154] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.812527][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.818075][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.824129][ T1154] collapse_file+0x357f/0x4300 [ 59.828890][ T1154] ? collapse_huge_page+0x4370/0x4370 [ 59.834245][ T1154] ? khugepaged+0x24fa/0x3f80 [ 59.838920][ T1154] khugepaged+0x3049/0x3f80 [ 59.843436][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.849068][ T1154] ? lock_downgrade+0x840/0x840 [ 59.853902][ T1154] ? finish_wait+0x260/0x260 [ 59.858579][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.864367][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.870357][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 59.875486][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.881117][ T1154] kthread+0x388/0x470 [ 59.885175][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.890879][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.896585][ T1154] ret_from_fork+0x24/0x30 [ 59.901002][ T6805] CPU: 0 PID: 6805 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.909244][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.919303][ T6805] Call Trace: [ 59.922594][ T6805] dump_stack+0x188/0x20d [ 59.926932][ T6805] debug_smp_processor_id.cold+0x88/0x9b [ 59.932567][ T6805] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.937721][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.943185][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.948910][ T6805] ext4_ext_map_blocks+0x2044/0x3410 [ 59.954202][ T6805] ? ext4_ext_release+0x10/0x10 [ 59.959053][ T6805] ? __down_timeout+0x2d0/0x2d0 [ 59.963896][ T6805] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.969532][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 59.974389][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.979586][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.985134][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.991104][ T6805] ? prandom_u32_state+0xe/0x170 [ 59.996035][ T6805] ? __brelse+0x84/0xa0 [ 60.000183][ T6805] ? __ext4_new_inode+0x144/0x57c0 [ 60.005291][ T6805] ext4_getblk+0xad/0x520 [ 60.009623][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.015329][ T6805] ? ext4_free_inode+0x17e0/0x17e0 [ 60.020425][ T6805] ext4_bread+0x7c/0x380 [ 60.024833][ T6805] ? ext4_getblk+0x520/0x520 [ 60.029424][ T6805] ? dqget+0xff0/0xff0 [ 60.033509][ T6805] ext4_append+0x153/0x360 [ 60.037933][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 60.042272][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 60.046783][ T6805] ? security_inode_permission+0xc4/0xf0 [ 60.052424][ T6805] vfs_mkdir+0x419/0x690 [ 60.056651][ T6805] do_mkdirat+0x21e/0x280 [ 60.060959][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.065802][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.071759][ T6805] ? do_syscall_64+0x21/0x7d0 [ 60.076414][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.082371][ T6805] do_syscall_64+0xf6/0x7d0 [ 60.086873][ T6805] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.092757][ T6805] RIP: 0033:0x45bee7 [ 60.096629][ T6805] 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 [ 60.116230][ T6805] RSP: 002b:00007ffcfa1f92e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.124618][ T6805] RAX: ffffffffffffffda RBX: 000000000000e97c RCX: 000000000045bee7 [ 60.132583][ T6805] RDX: 00007ffcfa1f9333 RSI: 00000000000001ff RDI: 00007ffcfa1f9330 [ 60.140538][ T6805] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.148525][ T6805] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 60.156475][ T6805] R13: 00007ffcfa1f9320 R14: 000000000000e922 R15: 00007ffcfa1f9330 2020/06/10 15:30:42 building call list... [ 60.434209][ T299] tipc: TX() has been purged, node left! executing program [ 61.892266][ T6797] can: request_module (can-proto-0) failed. [ 62.408419][ T6797] can: request_module (can-proto-0) failed. [ 62.419917][ T6797] can: request_module (can-proto-0) failed.