[ 49.259315][ T6725] RDX: 00007ffd5fc2af00 RSI: 00000000000001ed RDI: 000055f932c13985 [ 49.267303][ T6725] RBP: 00007fe28d6a9680 R08: 0000000000000100 R09: 0000000000000000 [ 49.275564][ T6725] R10: 000055f932c13980 R11: 0000000000000246 R12: 00000000000001ed [ 49.283547][ T6725] R13: 00007ffd5fc2b1c0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 55.606807][ T172] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/172 [ 55.616011][ T172] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 55.621949][ T172] CPU: 1 PID: 172 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 55.629924][ T172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.639984][ T172] Workqueue: writeback wb_workfn (flush-8:0) [ 55.645968][ T172] Call Trace: [ 55.649244][ T172] dump_stack+0x188/0x20d [ 55.653656][ T172] debug_smp_processor_id.cold+0x88/0x9b [ 55.659291][ T172] ext4_mb_new_blocks+0xa77/0x3b30 [ 55.664380][ T172] ? __kmalloc+0x62f/0x7a0 [ 55.668803][ T172] ? ext4_ext_search_right+0x2ca/0xb20 [ 55.674383][ T172] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 55.680103][ T172] ext4_ext_map_blocks+0x2044/0x3410 [ 55.685406][ T172] ? ext4_ext_release+0x10/0x10 [ 55.690266][ T172] ? __down_timeout+0x2d0/0x2d0 [ 55.695097][ T172] ? ext4_es_lookup_extent+0x41d/0xd30 [ 55.700557][ T172] ? debug_smp_processor_id+0x2f/0x185 [ 55.706024][ T172] ext4_map_blocks+0x4cb/0x1640 [ 55.710862][ T172] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 55.716048][ T172] ? debug_smp_processor_id+0x2f/0x185 [ 55.721496][ T172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.727026][ T172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.733002][ T172] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 55.738455][ T172] ext4_writepages+0x1ab7/0x3400 [ 55.743385][ T172] ? __ext4_mark_inode_dirty+0x950/0x950 [ 55.749016][ T172] ? __lock_acquire+0x2224/0x48a0 [ 55.754026][ T172] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 55.759990][ T172] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 55.765962][ T172] ? __ext4_mark_inode_dirty+0x950/0x950 [ 55.771582][ T172] ? do_writepages+0xfa/0x2a0 [ 55.776256][ T172] do_writepages+0xfa/0x2a0 [ 55.780743][ T172] ? page_writeback_cpu_online+0x10/0x10 [ 55.786356][ T172] ? debug_smp_processor_id+0x2f/0x185 [ 55.791795][ T172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.797324][ T172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.803285][ T172] ? lock_downgrade+0x840/0x840 [ 55.808120][ T172] __writeback_single_inode+0x12a/0x1410 [ 55.813732][ T172] ? _raw_spin_unlock+0x24/0x40 [ 55.818580][ T172] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 55.824541][ T172] writeback_sb_inodes+0x515/0xdd0 [ 55.829638][ T172] ? __writeback_single_inode+0x1410/0x1410 [ 55.835957][ T172] __writeback_inodes_wb+0xc3/0x250 [ 55.841154][ T172] wb_writeback+0x910/0xd90 [ 55.845650][ T172] ? print_usage_bug+0x240/0x240 [ 55.850585][ T172] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 55.856927][ T172] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 55.862804][ T172] ? cpumask_next+0x3c/0x40 [ 55.867374][ T172] ? get_nr_dirty_inodes+0xd6/0x130 [ 55.872554][ T172] wb_workfn+0xadf/0x10d0 [ 55.876888][ T172] ? inode_wait_for_writeback+0x30/0x30 [ 55.882425][ T172] ? debug_smp_processor_id+0x2f/0x185 [ 55.887867][ T172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.893391][ T172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.899357][ T172] process_one_work+0x965/0x16a0 [ 55.904277][ T172] ? lock_release+0x800/0x800 [ 55.908936][ T172] ? pwq_dec_nr_in_flight+0x310/0x310 [ 55.914289][ T172] ? rwlock_bug.part.0+0x90/0x90 [ 55.919224][ T172] worker_thread+0x96/0xe10 [ 55.923713][ T172] ? process_one_work+0x16a0/0x16a0 [ 55.928889][ T172] kthread+0x388/0x470 [ 55.932956][ T172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 55.938654][ T172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 55.944356][ T172] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.170' (ECDSA) to the list of known hosts. 2020/06/13 03:44:12 fuzzer started 2020/06/13 03:44:12 connecting to host at 10.128.0.26:37995 2020/06/13 03:44:12 checking machine... 2020/06/13 03:44:12 checking revisions... 2020/06/13 03:44:12 testing simple program... [ 58.163325][ T6787] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6787 [ 58.172730][ T6787] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.178715][ T6787] CPU: 1 PID: 6787 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.186782][ T6787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.196825][ T6787] Call Trace: [ 58.200102][ T6787] dump_stack+0x188/0x20d [ 58.204415][ T6787] debug_smp_processor_id.cold+0x88/0x9b [ 58.210049][ T6787] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.215147][ T6787] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.220609][ T6787] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.226383][ T6787] ext4_ext_map_blocks+0x2044/0x3410 [ 58.231709][ T6787] ? ext4_ext_release+0x10/0x10 [ 58.236555][ T6787] ? __down_timeout+0x2d0/0x2d0 [ 58.241402][ T6787] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.246859][ T6787] ext4_map_blocks+0x4cb/0x1640 [ 58.251707][ T6787] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.256895][ T6787] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.262431][ T6787] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.268389][ T6787] ? prandom_u32_state+0xe/0x170 [ 58.273307][ T6787] ? __brelse+0x84/0xa0 [ 58.277440][ T6787] ? __ext4_new_inode+0x144/0x57c0 [ 58.282531][ T6787] ext4_getblk+0xad/0x520 [ 58.286855][ T6787] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.292578][ T6787] ? ext4_free_inode+0x17e0/0x17e0 [ 58.297669][ T6787] ext4_bread+0x7c/0x380 [ 58.301888][ T6787] ? ext4_getblk+0x520/0x520 [ 58.306455][ T6787] ? dqget+0xff0/0xff0 [ 58.310502][ T6787] ext4_append+0x153/0x360 [ 58.314897][ T6787] ext4_mkdir+0x5e0/0xdf0 [ 58.319206][ T6787] ? ext4_rmdir+0xde0/0xde0 [ 58.323690][ T6787] ? security_inode_permission+0xc4/0xf0 [ 58.329302][ T6787] vfs_mkdir+0x419/0x690 [ 58.333539][ T6787] do_mkdirat+0x21e/0x280 [ 58.337849][ T6787] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.342676][ T6787] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.348636][ T6787] ? do_syscall_64+0x21/0x7d0 [ 58.353305][ T6787] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.359264][ T6787] do_syscall_64+0xf6/0x7d0 [ 58.363747][ T6787] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.369635][ T6787] RIP: 0033:0x4b02a0 [ 58.373525][ T6787] 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 [ 58.393106][ T6787] RSP: 002b:000000c0000cb4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.401513][ T6787] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 58.409461][ T6787] RDX: 00000000000001c0 RSI: 000000c0000e4c60 RDI: ffffffffffffff9c [ 58.417410][ T6787] RBP: 000000c0000cb510 R08: 0000000000000000 R09: 0000000000000000 [ 58.425652][ T6787] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.434909][ T6787] R13: 0000000000000064 R14: 0000000000000063 R15: 0000000000000100 [ 58.459566][ T6804] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6804 [ 58.470002][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 58.470040][ T1156] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.470055][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.470063][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.470068][ T1156] Call Trace: [ 58.470087][ T1156] dump_stack+0x188/0x20d [ 58.470107][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 58.470121][ T1156] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.470133][ T1156] ? __kmalloc+0x62f/0x7a0 [ 58.470156][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.479181][ T6804] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.485120][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.485138][ T1156] ext4_ext_map_blocks+0x2044/0x3410 [ 58.485158][ T1156] ? ext4_ext_release+0x10/0x10 [ 58.485189][ T1156] ? __down_timeout+0x2d0/0x2d0 [ 58.485205][ T1156] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.563113][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 58.567955][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.573154][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 58.578605][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.584135][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.590096][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.595550][ T1156] ext4_writepages+0x1ab7/0x3400 [ 58.600573][ T1156] ? mark_lock+0x30/0xdd0 [ 58.604917][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.610552][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.616168][ T1156] ? do_writepages+0xfa/0x2a0 [ 58.620837][ T1156] do_writepages+0xfa/0x2a0 [ 58.625345][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 58.630963][ T1156] ? do_raw_spin_lock+0x129/0x2e0 [ 58.635973][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 58.641161][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 58.645996][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 58.651698][ T1156] ? collapse_file+0x3575/0x4300 [ 58.656634][ T1156] ? delete_from_page_cache_batch+0xec0/0xec0 [ 58.662690][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 58.667889][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.675592][ T1156] collapse_file+0x357f/0x4300 [ 58.680369][ T1156] ? collapse_huge_page+0x4370/0x4370 [ 58.685743][ T1156] ? khugepaged+0x24fa/0x3f80 [ 58.690422][ T1156] khugepaged+0x3049/0x3f80 [ 58.694934][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.700567][ T1156] ? lock_downgrade+0x840/0x840 [ 58.705422][ T1156] ? finish_wait+0x260/0x260 [ 58.709996][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 58.715873][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.721923][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 58.726944][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.732566][ T1156] kthread+0x388/0x470 [ 58.736617][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.742403][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.748122][ T1156] ret_from_fork+0x24/0x30 [ 58.752540][ T6804] CPU: 0 PID: 6804 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.760783][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.770840][ T6804] Call Trace: [ 58.774143][ T6804] dump_stack+0x188/0x20d [ 58.778489][ T6804] debug_smp_processor_id.cold+0x88/0x9b [ 58.784149][ T6804] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.789289][ T6804] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.794857][ T6804] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.800585][ T6804] ext4_ext_map_blocks+0x2044/0x3410 [ 58.806755][ T6804] ? ext4_ext_release+0x10/0x10 [ 58.811611][ T6804] ? __down_timeout+0x2d0/0x2d0 [ 58.816541][ T6804] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.818240][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 58.822023][ T6804] ext4_map_blocks+0x4cb/0x1640 [ 58.822046][ T6804] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.822061][ T6804] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.822077][ T6804] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.822092][ T6804] ? prandom_u32_state+0xe/0x170 [ 58.822114][ T6804] ? __brelse+0x84/0xa0 [ 58.831219][ T1156] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.835945][ T6804] ? __ext4_new_inode+0x144/0x57c0 [ 58.835963][ T6804] ext4_getblk+0xad/0x520 [ 58.835980][ T6804] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.836000][ T6804] ? ext4_free_inode+0x17e0/0x17e0 [ 58.836016][ T6804] ext4_bread+0x7c/0x380 [ 58.892034][ T6804] ? ext4_getblk+0x520/0x520 [ 58.896607][ T6804] ? dqget+0xff0/0xff0 [ 58.900671][ T6804] ext4_append+0x153/0x360 [ 58.905100][ T6804] ext4_mkdir+0x5e0/0xdf0 [ 58.909440][ T6804] ? ext4_rmdir+0xde0/0xde0 [ 58.913930][ T6804] ? security_inode_permission+0xc4/0xf0 [ 58.919549][ T6804] vfs_mkdir+0x419/0x690 [ 58.923793][ T6804] do_mkdirat+0x21e/0x280 [ 58.928109][ T6804] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.932945][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.938917][ T6804] ? do_syscall_64+0x21/0x7d0 [ 58.943610][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.949580][ T6804] do_syscall_64+0xf6/0x7d0 [ 58.954094][ T6804] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.959995][ T6804] RIP: 0033:0x45bee7 [ 58.963890][ 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 [ 58.983476][ T6804] RSP: 002b:00007ffeaf5793b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.991872][ T6804] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.999824][ T6804] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffeaf579590 [ 59.007795][ T6804] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002e40 [ 59.015748][ T6804] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.023711][ T6804] R13: 00007ffeaf579590 R14: 8421084210842109 R15: 00007ffeaf57959c [ 59.031687][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.039588][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.049662][ T1156] Call Trace: [ 59.053651][ T1156] dump_stack+0x188/0x20d [ 59.057988][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 59.063624][ T1156] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.068750][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.074220][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.080381][ T1156] ext4_ext_map_blocks+0x2044/0x3410 [ 59.085674][ T1156] ? ext4_ext_release+0x10/0x10 [ 59.090551][ T1156] ? __down_timeout+0x2d0/0x2d0 [ 59.095402][ T1156] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.100878][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 59.105742][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.110939][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 59.116404][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.121951][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.128021][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.133489][ T1156] ext4_writepages+0x1ab7/0x3400 [ 59.138435][ T1156] ? mark_lock+0x30/0xdd0 [ 59.142786][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.143004][ T6805] IPVS: ftp: loaded support on port[0] = 21 [ 59.148438][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.148452][ T1156] ? do_writepages+0xfa/0x2a0 [ 59.148469][ T1156] do_writepages+0xfa/0x2a0 [ 59.169156][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 59.174806][ T1156] ? do_raw_spin_lock+0x129/0x2e0 [ 59.179844][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 59.185050][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 59.189911][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.195635][ T1156] ? collapse_file+0x3575/0x4300 [ 59.199367][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6805 [ 59.200575][ T1156] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.210074][ T6805] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.216079][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.216094][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.216116][ T1156] collapse_file+0x357f/0x4300 [ 59.216146][ T1156] ? collapse_huge_page+0x4370/0x4370 [ 59.243219][ T1156] ? khugepaged+0x24fa/0x3f80 [ 59.247896][ T1156] khugepaged+0x3049/0x3f80 [ 59.252406][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.258037][ T1156] ? lock_downgrade+0x840/0x840 [ 59.262874][ T1156] ? finish_wait+0x260/0x260 [ 59.267541][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.273340][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.279393][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 59.284401][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.290019][ T1156] kthread+0x388/0x470 [ 59.294068][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.299781][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.305482][ T1156] ret_from_fork+0x24/0x30 [ 59.309896][ T6805] CPU: 0 PID: 6805 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.318136][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.328191][ T6805] Call Trace: [ 59.331487][ T6805] dump_stack+0x188/0x20d [ 59.335826][ T6805] debug_smp_processor_id.cold+0x88/0x9b [ 59.341468][ T6805] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.346607][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.352073][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.353455][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 59.357789][ T6805] ext4_ext_map_blocks+0x2044/0x3410 [ 59.357810][ T6805] ? ext4_ext_release+0x10/0x10 [ 59.357839][ T6805] ? __down_timeout+0x2d0/0x2d0 [ 59.357852][ T6805] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.357873][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 59.357894][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.357908][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.357925][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.357940][ T6805] ? prandom_u32_state+0xe/0x170 [ 59.357957][ T6805] ? __brelse+0x84/0xa0 [ 59.357972][ T6805] ? __ext4_new_inode+0x144/0x57c0 [ 59.357992][ T6805] ext4_getblk+0xad/0x520 [ 59.358009][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.358035][ T6805] ? ext4_free_inode+0x17e0/0x17e0 [ 59.367121][ T1156] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.372303][ T6805] ext4_bread+0x7c/0x380 [ 59.448554][ T6805] ? ext4_getblk+0x520/0x520 [ 59.453127][ T6805] ? dqget+0xff0/0xff0 [ 59.457184][ T6805] ext4_append+0x153/0x360 [ 59.461608][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 59.465933][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 59.470442][ T6805] ? security_inode_permission+0xc4/0xf0 [ 59.476078][ T6805] vfs_mkdir+0x419/0x690 [ 59.480306][ T6805] do_mkdirat+0x21e/0x280 [ 59.484681][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.489525][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.495507][ T6805] ? do_syscall_64+0x21/0x7d0 [ 59.500176][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.506165][ T6805] do_syscall_64+0xf6/0x7d0 [ 59.510662][ T6805] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.516540][ T6805] RIP: 0033:0x45bee7 [ 59.520422][ 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 [ 59.540095][ T6805] RSP: 002b:00007ffeaf5792a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.548490][ T6805] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.556451][ T6805] RDX: 00007ffeaf5792f3 RSI: 00000000000001ff RDI: 00007ffeaf5792f0 [ 59.564407][ T6805] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.572361][ T6805] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.580320][ T6805] R13: 00007ffeaf5792e0 R14: 0000000000000000 R15: 00007ffeaf5792f0 [ 59.588297][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.596200][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.606255][ T1156] Call Trace: [ 59.609559][ T1156] dump_stack+0x188/0x20d [ 59.613942][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 59.619605][ T1156] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.624734][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.630202][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.636359][ T1156] ext4_ext_map_blocks+0x2044/0x3410 [ 59.641651][ T1156] ? ext4_ext_release+0x10/0x10 [ 59.646524][ T1156] ? __down_timeout+0x2d0/0x2d0 [ 59.651374][ T1156] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.656847][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 59.661746][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.666944][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 59.672411][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.677966][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.679812][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6805 [ 59.683976][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.693364][ T6805] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.698786][ T1156] ext4_writepages+0x1ab7/0x3400 [ 59.698806][ T1156] ? mark_lock+0x30/0xdd0 [ 59.698831][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.698870][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.698885][ T1156] ? do_writepages+0xfa/0x2a0 [ 59.698897][ T1156] do_writepages+0xfa/0x2a0 [ 59.698916][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 59.740026][ T1156] ? do_raw_spin_lock+0x129/0x2e0 [ 59.745051][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 59.750247][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 59.755100][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.760804][ T1156] ? collapse_file+0x3575/0x4300 [ 59.765745][ T1156] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.771808][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.777006][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.782989][ T1156] collapse_file+0x357f/0x4300 [ 59.787749][ T1156] ? collapse_huge_page+0x4370/0x4370 [ 59.793116][ T1156] ? khugepaged+0x24fa/0x3f80 [ 59.797790][ T1156] khugepaged+0x3049/0x3f80 [ 59.802313][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.807929][ T1156] ? lock_downgrade+0x840/0x840 [ 59.812759][ T1156] ? finish_wait+0x260/0x260 [ 59.817335][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.823120][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.830131][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 59.835143][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.840766][ T1156] kthread+0x388/0x470 [ 59.844853][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.850566][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.856269][ T1156] ret_from_fork+0x24/0x30 [ 59.860684][ T6805] CPU: 0 PID: 6805 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.868927][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.878984][ T6805] Call Trace: [ 59.882283][ T6805] dump_stack+0x188/0x20d [ 59.886618][ T6805] debug_smp_processor_id.cold+0x88/0x9b [ 59.892252][ T6805] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.897377][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.902928][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.908660][ T6805] ext4_ext_map_blocks+0x2044/0x3410 [ 59.915082][ T6805] ? ext4_ext_release+0x10/0x10 [ 59.919952][ T6805] ? __down_timeout+0x2d0/0x2d0 [ 59.924809][ T6805] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.930294][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 59.935156][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.940357][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.945905][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.951898][ T6805] ? prandom_u32_state+0xe/0x170 [ 59.956844][ T6805] ? __brelse+0x84/0xa0 [ 59.961007][ T6805] ? __ext4_new_inode+0x144/0x57c0 [ 59.966135][ T6805] ext4_getblk+0xad/0x520 [ 59.970482][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.976215][ T6805] ? ext4_free_inode+0x17e0/0x17e0 [ 59.981336][ T6805] ext4_bread+0x7c/0x380 [ 59.985672][ T6805] ? ext4_getblk+0x520/0x520 [ 59.990274][ T6805] ? dqget+0xff0/0xff0 [ 59.994359][ T6805] ext4_append+0x153/0x360 [ 59.998788][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 60.003132][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 60.007735][ T6805] ? security_inode_permission+0xc4/0xf0 [ 60.013372][ T6805] vfs_mkdir+0x419/0x690 [ 60.017619][ T6805] do_mkdirat+0x21e/0x280 [ 60.021951][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.026804][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.032790][ T6805] ? do_syscall_64+0x21/0x7d0 [ 60.037468][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.043546][ T6805] do_syscall_64+0xf6/0x7d0 [ 60.048060][ T6805] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.053968][ T6805] RIP: 0033:0x45bee7 [ 60.057866][ 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 [ 60.077726][ T6805] RSP: 002b:00007ffeaf5792a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.086131][ T6805] RAX: ffffffffffffffda RBX: 000000000000e902 RCX: 000000000045bee7 [ 60.094104][ T6805] RDX: 00007ffeaf5792f3 RSI: 00000000000001ff RDI: 00007ffeaf5792f0 [ 60.102061][ T6805] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.110055][ T6805] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 2020/06/13 03:44:15 building call list... [ 60.118024][ T6805] R13: 00007ffeaf5792e0 R14: 000000000000e8f7 R15: 00007ffeaf5792f0 [ 60.404132][ T6751] tipc: TX() has been purged, node left! executing program [ 61.908686][ T6787] can: request_module (can-proto-0) failed. [ 62.367814][ T6787] can: request_module (can-proto-0) failed. [ 62.379111][ T6787] can: request_module (can-proto-0) failed.