[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.998024][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 57.007073][ T21] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.013269][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 57.021148][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.031189][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 57.037235][ T21] Call Trace: [ 57.040625][ T21] dump_stack+0x188/0x20d [ 57.044940][ T21] debug_smp_processor_id.cold+0x88/0x9b [ 57.050649][ T21] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.055735][ T21] ? __kmalloc+0x62f/0x7a0 [ 57.060135][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.065568][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.071280][ T21] ext4_ext_map_blocks+0x2044/0x3410 [ 57.076544][ T21] ? ext4_ext_release+0x10/0x10 [ 57.081379][ T21] ? __down_timeout+0x2d0/0x2d0 [ 57.086266][ T21] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.091767][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.097374][ T21] ext4_map_blocks+0x4cb/0x1640 [ 57.102214][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.107441][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.112890][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.118489][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.124461][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.129991][ T21] ext4_writepages+0x1ab7/0x3400 [ 57.134920][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.140529][ T21] ? __lock_acquire+0x2224/0x48a0 [ 57.145541][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.151503][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.157468][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.163082][ T21] ? do_writepages+0xfa/0x2a0 [ 57.167743][ T21] do_writepages+0xfa/0x2a0 [ 57.172227][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 57.177848][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.183372][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.188900][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.194853][ T21] ? lock_downgrade+0x840/0x840 [ 57.199689][ T21] __writeback_single_inode+0x12a/0x1410 [ 57.205361][ T21] ? _raw_spin_unlock+0x24/0x40 [ 57.210219][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.216186][ T21] writeback_sb_inodes+0x515/0xdd0 [ 57.221288][ T21] ? __writeback_single_inode+0x1410/0x1410 [ 57.227188][ T21] __writeback_inodes_wb+0xc3/0x250 [ 57.227211][ T21] wb_writeback+0x910/0xd90 [ 57.227229][ T21] ? print_usage_bug+0x240/0x240 [ 57.227248][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.227263][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.227284][ T21] ? cpumask_next+0x3c/0x40 [ 57.227301][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.263691][ T21] wb_workfn+0xadf/0x10d0 [ 57.268007][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 57.273558][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 57.279793][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.285327][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.291287][ T21] process_one_work+0x965/0x16a0 [ 57.296207][ T21] ? lock_release+0x800/0x800 [ 57.300950][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.306299][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 57.311216][ T21] worker_thread+0x96/0xe10 [ 57.315710][ T21] ? process_one_work+0x16a0/0x16a0 [ 57.320904][ T21] kthread+0x388/0x470 [ 57.324952][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.330655][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.336397][ T21] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.37' (ECDSA) to the list of known hosts. 2020/06/13 05:56:51 fuzzer started [ 60.855914][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.865476][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.871508][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.879508][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.889566][ T1155] Call Trace: [ 60.892872][ T1155] dump_stack+0x188/0x20d [ 60.897252][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.902893][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.908010][ T1155] ? __kmalloc+0x62f/0x7a0 [ 60.912795][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.918354][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.924170][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.929469][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.934603][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.939460][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.944930][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.949793][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.955456][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.960920][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.966462][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.972442][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.977903][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.982842][ T1155] ? mark_lock+0x30/0xdd0 [ 60.987189][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.992855][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.998496][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.003164][ T1155] do_writepages+0xfa/0x2a0 [ 61.007664][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.013303][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.018441][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.023641][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.028757][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.034476][ T1155] ? collapse_file+0x3575/0x4300 [ 61.039413][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.045478][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.050683][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.056676][ T1155] collapse_file+0x357f/0x4300 [ 61.061689][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.067160][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.071851][ T1155] ? hci_suspend_wait_event+0x198/0x240 [ 61.077390][ T1155] khugepaged+0x3049/0x3f80 [ 61.081925][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.089214][ T1155] ? lock_downgrade+0x840/0x840 [ 61.094076][ T1155] ? finish_wait+0x260/0x260 [ 61.098682][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 2020/06/13 05:56:52 connecting to host at 10.128.0.26:46371 2020/06/13 05:56:52 checking machine... 2020/06/13 05:56:52 checking revisions... [ 61.104483][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.110476][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.115509][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.121150][ T1155] kthread+0x388/0x470 [ 61.125225][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.131025][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.136744][ T1155] ret_from_fork+0x24/0x30 2020/06/13 05:56:52 testing simple program... [ 61.227017][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.236077][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.242124][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.250027][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.260083][ T1155] Call Trace: [ 61.263388][ T1155] dump_stack+0x188/0x20d [ 61.267733][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.273459][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.278671][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.284136][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.290302][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.295595][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.300462][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.305315][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.310783][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.315816][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.321011][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.326475][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.332023][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.338217][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.343683][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.348623][ T1155] ? mark_lock+0x30/0xdd0 [ 61.352969][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.358631][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.364967][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.369646][ T1155] do_writepages+0xfa/0x2a0 [ 61.374243][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.379875][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.384901][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.390100][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.394954][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.400673][ T1155] ? collapse_file+0x3575/0x4300 [ 61.405608][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.411684][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.416885][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.422891][ T1155] collapse_file+0x357f/0x4300 [ 61.427680][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.433141][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.437835][ T1155] ? hci_suspend_wait_event+0x198/0x240 [ 61.443391][ T1155] khugepaged+0x3049/0x3f80 [ 61.447344][ T6789] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6789 [ 61.447912][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.456954][ T6789] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.462528][ T1155] ? lock_downgrade+0x840/0x840 [ 61.473290][ T1155] ? finish_wait+0x260/0x260 [ 61.477865][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.483656][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.489622][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.494653][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.500270][ T1155] kthread+0x388/0x470 [ 61.504321][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.510021][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.515722][ T1155] ret_from_fork+0x24/0x30 [ 61.520134][ T6789] CPU: 0 PID: 6789 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 61.528037][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.538089][ T6789] Call Trace: [ 61.541367][ T6789] dump_stack+0x188/0x20d [ 61.545682][ T6789] debug_smp_processor_id.cold+0x88/0x9b [ 61.551294][ T6789] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.556397][ T6789] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.561863][ T6789] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.567572][ T6789] ext4_ext_map_blocks+0x2044/0x3410 [ 61.572844][ T6789] ? ext4_ext_release+0x10/0x10 [ 61.577708][ T6789] ? __down_timeout+0x2d0/0x2d0 [ 61.582537][ T6789] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.588050][ T6789] ext4_map_blocks+0x4cb/0x1640 [ 61.592893][ T6789] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.598268][ T6789] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.603826][ T6789] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.609808][ T6789] ? prandom_u32_state+0xe/0x170 [ 61.614732][ T6789] ? __brelse+0x84/0xa0 [ 61.618872][ T6789] ? __ext4_new_inode+0x144/0x57c0 [ 61.623969][ T6789] ext4_getblk+0xad/0x520 [ 61.628285][ T6789] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.633988][ T6789] ? ext4_free_inode+0x17e0/0x17e0 [ 61.639110][ T6789] ext4_bread+0x7c/0x380 [ 61.643336][ T6789] ? ext4_getblk+0x520/0x520 [ 61.647905][ T6789] ? dqget+0xff0/0xff0 [ 61.651974][ T6789] ext4_append+0x153/0x360 [ 61.656377][ T6789] ext4_mkdir+0x5e0/0xdf0 [ 61.660713][ T6789] ? ext4_rmdir+0xde0/0xde0 [ 61.665215][ T6789] ? security_inode_permission+0xc4/0xf0 [ 61.670850][ T6789] vfs_mkdir+0x419/0x690 [ 61.675076][ T6789] do_mkdirat+0x21e/0x280 [ 61.679389][ T6789] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.684220][ T6789] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.690198][ T6789] ? do_syscall_64+0x21/0x7d0 [ 61.694871][ T6789] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.700837][ T6789] do_syscall_64+0xf6/0x7d0 [ 61.705323][ T6789] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.711194][ T6789] RIP: 0033:0x4b02a0 [ 61.715072][ T6789] 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 [ 61.734655][ T6789] RSP: 002b:000000c0000dd4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 61.743058][ T6789] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 61.751009][ T6789] RDX: 00000000000001c0 RSI: 000000c000026b00 RDI: ffffffffffffff9c [ 61.758972][ T6789] RBP: 000000c0000dd510 R08: 0000000000000000 R09: 0000000000000000 [ 61.766938][ T6789] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 61.774891][ T6789] R13: 0000000000000059 R14: 0000000000000058 R15: 0000000000000100 [ 61.804524][ T6803] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6803 [ 61.814169][ T6803] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.820142][ T6803] CPU: 0 PID: 6803 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.828379][ T6803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.838436][ T6803] Call Trace: [ 61.841730][ T6803] dump_stack+0x188/0x20d [ 61.846093][ T6803] debug_smp_processor_id.cold+0x88/0x9b [ 61.850722][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.851726][ T6803] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.860903][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.865907][ T6803] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.877197][ T6803] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.882903][ T6803] ext4_ext_map_blocks+0x2044/0x3410 [ 61.888182][ T6803] ? ext4_ext_release+0x10/0x10 [ 61.893031][ T6803] ? __down_timeout+0x2d0/0x2d0 [ 61.897864][ T6803] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.903329][ T6803] ext4_map_blocks+0x4cb/0x1640 [ 61.908171][ T6803] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.913350][ T6803] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.918880][ T6803] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.926665][ T6803] ? prandom_u32_state+0xe/0x170 [ 61.931588][ T6803] ? __brelse+0x84/0xa0 [ 61.935761][ T6803] ? __ext4_new_inode+0x144/0x57c0 [ 61.940867][ T6803] ext4_getblk+0xad/0x520 [ 61.945190][ T6803] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.950907][ T6803] ? ext4_free_inode+0x17e0/0x17e0 [ 61.956012][ T6803] ext4_bread+0x7c/0x380 [ 61.960249][ T6803] ? ext4_getblk+0x520/0x520 [ 61.964832][ T6803] ? dqget+0xff0/0xff0 [ 61.968903][ T6803] ext4_append+0x153/0x360 [ 61.973322][ T6803] ext4_mkdir+0x5e0/0xdf0 [ 61.977641][ T6803] ? ext4_rmdir+0xde0/0xde0 [ 61.982131][ T6803] ? security_inode_permission+0xc4/0xf0 [ 61.987751][ T6803] vfs_mkdir+0x419/0x690 [ 61.991981][ T6803] do_mkdirat+0x21e/0x280 [ 61.996730][ T6803] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.001572][ T6803] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.007536][ T6803] ? do_syscall_64+0x21/0x7d0 [ 62.012199][ T6803] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.018164][ T6803] do_syscall_64+0xf6/0x7d0 [ 62.022653][ T6803] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.028541][ T6803] RIP: 0033:0x45bee7 [ 62.032419][ T6803] 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 [ 62.052002][ T6803] RSP: 002b:00007ffc357ea598 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 62.060409][ T6803] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 62.068503][ T6803] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffc357ea770 [ 62.076492][ T6803] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000034c0 [ 62.084475][ T6803] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 62.092429][ T6803] R13: 00007ffc357ea770 R14: 8421084210842109 R15: 00007ffc357ea77c [ 62.100407][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.108301][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.118357][ T1155] Call Trace: [ 62.121650][ T1155] dump_stack+0x188/0x20d [ 62.126510][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 62.132147][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.137275][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.142744][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.148942][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 62.154241][ T1155] ? ext4_ext_release+0x10/0x10 [ 62.159109][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 62.163963][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.169686][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 62.174543][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.180091][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 62.185562][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.190406][ T6804] IPVS: ftp: loaded support on port[0] = 21 [ 62.191120][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.202956][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.208423][ T1155] ext4_writepages+0x1ab7/0x3400 [ 62.213373][ T1155] ? mark_lock+0x30/0xdd0 [ 62.217730][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.223431][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.229158][ T1155] ? do_writepages+0xfa/0x2a0 [ 62.233852][ T1155] do_writepages+0xfa/0x2a0 [ 62.235655][ T6804] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6804 [ 62.238371][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 62.238387][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 62.238400][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 62.238417][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 62.247801][ T6804] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.253474][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.281294][ T1155] ? collapse_file+0x3575/0x4300 [ 62.286218][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 62.292275][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.297459][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.303512][ T1155] collapse_file+0x357f/0x4300 [ 62.308278][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 62.313632][ T1155] ? khugepaged+0x24fa/0x3f80 [ 62.318306][ T1155] ? hci_suspend_wait_event+0x198/0x240 [ 62.323848][ T1155] khugepaged+0x3049/0x3f80 [ 62.328376][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.333991][ T1155] ? lock_downgrade+0x840/0x840 [ 62.338823][ T1155] ? finish_wait+0x260/0x260 [ 62.343395][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.349184][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.355149][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 62.360172][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.366393][ T1155] kthread+0x388/0x470 [ 62.370456][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.376165][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.381956][ T1155] ret_from_fork+0x24/0x30 [ 62.386384][ T6804] CPU: 0 PID: 6804 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 62.394624][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.404682][ T6804] Call Trace: [ 62.407984][ T6804] dump_stack+0x188/0x20d [ 62.412324][ T6804] debug_smp_processor_id.cold+0x88/0x9b [ 62.417969][ T6804] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.423097][ T6804] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.428561][ T6804] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.434296][ T6804] ext4_ext_map_blocks+0x2044/0x3410 [ 62.439592][ T6804] ? ext4_ext_release+0x10/0x10 [ 62.444507][ T6804] ? __down_timeout+0x2d0/0x2d0 [ 62.449361][ T6804] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.454826][ T6804] ext4_map_blocks+0x4cb/0x1640 [ 62.459687][ T6804] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.464889][ T6804] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.470449][ T6804] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.476433][ T6804] ? prandom_u32_state+0xe/0x170 [ 62.481472][ T6804] ? __brelse+0x84/0xa0 [ 62.485636][ T6804] ? __ext4_new_inode+0x144/0x57c0 [ 62.490757][ T6804] ext4_getblk+0xad/0x520 [ 62.495101][ T6804] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 62.500832][ T6804] ? ext4_free_inode+0x17e0/0x17e0 [ 62.505949][ T6804] ext4_bread+0x7c/0x380 [ 62.510198][ T6804] ? ext4_getblk+0x520/0x520 [ 62.514786][ T6804] ? dqget+0xff0/0xff0 [ 62.518883][ T6804] ext4_append+0x153/0x360 [ 62.523305][ T6804] ext4_mkdir+0x5e0/0xdf0 [ 62.527734][ T6804] ? ext4_rmdir+0xde0/0xde0 [ 62.532237][ T6804] ? security_inode_permission+0xc4/0xf0 [ 62.537853][ T6804] vfs_mkdir+0x419/0x690 [ 62.542078][ T6804] do_mkdirat+0x21e/0x280 [ 62.546391][ T6804] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.551217][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.557178][ T6804] ? do_syscall_64+0x21/0x7d0 [ 62.561839][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.567798][ T6804] do_syscall_64+0xf6/0x7d0 [ 62.572344][ T6804] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.578228][ T6804] RIP: 0033:0x45bee7 [ 62.582161][ 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 [ 62.601751][ T6804] RSP: 002b:00007ffc357ea488 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 62.610144][ T6804] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 62.618096][ T6804] RDX: 00007ffc357ea4d3 RSI: 00000000000001ff RDI: 00007ffc357ea4d0 [ 62.626045][ T6804] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 62.633994][ T6804] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 62.641962][ T6804] R13: 00007ffc357ea4c0 R14: 0000000000000000 R15: 00007ffc357ea4d0 [ 62.694114][ T6804] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6804 [ 62.703731][ T6804] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.709711][ T6804] CPU: 0 PID: 6804 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 62.717944][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.732420][ T6804] Call Trace: [ 62.735702][ T6804] dump_stack+0x188/0x20d [ 62.740031][ T6804] debug_smp_processor_id.cold+0x88/0x9b [ 62.745642][ T6804] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.750757][ T6804] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.756219][ T6804] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.761954][ T6804] ext4_ext_map_blocks+0x2044/0x3410 [ 62.767606][ T6804] ? ext4_ext_release+0x10/0x10 [ 62.772475][ T6804] ? __down_timeout+0x2d0/0x2d0 [ 62.777326][ T6804] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.782804][ T6804] ext4_map_blocks+0x4cb/0x1640 [ 62.787729][ T6804] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.792923][ T6804] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.798466][ T6804] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.804446][ T6804] ? prandom_u32_state+0xe/0x170 [ 62.809363][ T6804] ? __brelse+0x84/0xa0 [ 62.813570][ T6804] ? __ext4_new_inode+0x144/0x57c0 [ 62.818886][ T6804] ext4_getblk+0xad/0x520 [ 62.823205][ T6804] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 62.828956][ T6804] ? ext4_free_inode+0x17e0/0x17e0 [ 62.834077][ T6804] ext4_bread+0x7c/0x380 [ 62.838316][ T6804] ? ext4_getblk+0x520/0x520 [ 62.842899][ T6804] ? dqget+0xff0/0xff0 [ 62.846961][ T6804] ext4_append+0x153/0x360 [ 62.851359][ T6804] ext4_mkdir+0x5e0/0xdf0 [ 62.855686][ T6804] ? ext4_rmdir+0xde0/0xde0 [ 62.860170][ T6804] ? security_inode_permission+0xc4/0xf0 [ 62.865786][ T6804] vfs_mkdir+0x419/0x690 [ 62.870014][ T6804] do_mkdirat+0x21e/0x280 [ 62.874322][ T6804] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.879166][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.885125][ T6804] ? do_syscall_64+0x21/0x7d0 [ 62.889796][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.895773][ T6804] do_syscall_64+0xf6/0x7d0 [ 62.900268][ T6804] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.906138][ T6804] RIP: 0033:0x45bee7 [ 62.910026][ 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 [ 62.929868][ T6804] RSP: 002b:00007ffc357ea488 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 2020/06/13 05:56:53 building call list... [ 62.938258][ T6804] RAX: ffffffffffffffda RBX: 000000000000f4da RCX: 000000000045bee7 [ 62.946210][ T6804] RDX: 00007ffc357ea4d3 RSI: 00000000000001ff RDI: 00007ffc357ea4d0 [ 62.954157][ T6804] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 62.962105][ T6804] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 62.970054][ T6804] R13: 00007ffc357ea4c0 R14: 000000000000f4ca R15: 00007ffc357ea4d0 [ 63.276107][ T283] tipc: TX() has been purged, node left! executing program [ 64.632243][ T6793] can: request_module (can-proto-0) failed. [ 65.239996][ T6793] can: request_module (can-proto-0) failed. [ 65.252015][ T6793] can: request_module (can-proto-0) failed.