[ 47.248765][ T6698] RIP: 0033:0x7f45c7f82687 [ 47.253182][ T6698] Code: Bad RIP value. [ 47.257246][ T6698] RSP: 002b:00007ffd900f4f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 47.265657][ T6698] RAX: ffffffffffffffda RBX: 000056135cbdf985 RCX: 00007f45c7f82687 [ 47.273648][ T6698] RDX: 00007ffd900f4de0 RSI: 00000000000001ed RDI: 000056135cbdf985 [ 47.281619][ T6698] RBP: 00007f45c7f82680 R08: 0000000000000100 R09: 0000000000000000 [ 47.289592][ T6698] R10: 000056135cbdf980 R11: 0000000000000246 R12: 00000000000001ed [ 47.297574][ T6698] R13: 00007ffd900f50a0 R14: 0000000000000000 R15: 0000000000000000 [ 52.501838][ T6855] scp (6855) used greatest stack depth: 21488 bytes left [ 53.094290][ T4913] systemd-udevd (4913) used greatest stack depth: 20928 bytes left Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. 2020/06/05 07:24:15 fuzzer started 2020/06/05 07:24:15 connecting to host at 10.128.0.26:39799 2020/06/05 07:24:15 checking machine... 2020/06/05 07:24:15 checking revisions... 2020/06/05 07:24:15 testing simple program... [ 59.519657][ T6873] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6873 [ 59.528821][ T6873] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.534809][ T6873] CPU: 1 PID: 6873 Comm: syz-fuzzer Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.544482][ T6873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.554514][ T6873] Call Trace: [ 59.557788][ T6873] dump_stack+0x18f/0x20d [ 59.562111][ T6873] check_preemption_disabled+0x20d/0x220 [ 59.567722][ T6873] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.572863][ T6873] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.578298][ T6873] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.583997][ T6873] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.589260][ T6873] ? ext4_ext_release+0x10/0x10 [ 59.594100][ T6873] ? down_write_killable+0x170/0x170 [ 59.599698][ T6873] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.605153][ T6873] ext4_map_blocks+0x4cb/0x1640 [ 59.609996][ T6873] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.615176][ T6873] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.620701][ T6873] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.626920][ T6873] ? prandom_u32_state+0xe/0x170 [ 59.631838][ T6873] ? __brelse+0x84/0xa0 [ 59.635980][ T6873] ? __ext4_new_inode+0x144/0x55e0 [ 59.641080][ T6873] ext4_getblk+0xad/0x520 [ 59.645392][ T6873] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.651207][ T6873] ? ext4_free_inode+0x1700/0x1700 [ 59.656309][ T6873] ext4_bread+0x7c/0x380 [ 59.660553][ T6873] ? ext4_getblk+0x520/0x520 [ 59.665127][ T6873] ? dquot_get_next_dqblk+0x180/0x180 [ 59.670480][ T6873] ext4_append+0x153/0x360 [ 59.674879][ T6873] ext4_mkdir+0x5e0/0xdf0 [ 59.679203][ T6873] ? ext4_rmdir+0xde0/0xde0 [ 59.683699][ T6873] ? security_inode_permission+0xc4/0xf0 [ 59.689313][ T6873] vfs_mkdir+0x419/0x690 [ 59.693534][ T6873] do_mkdirat+0x21e/0x280 [ 59.697935][ T6873] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.702763][ T6873] ? do_syscall_64+0x1c/0xe0 [ 59.707330][ T6873] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.713297][ T6873] do_syscall_64+0x60/0xe0 [ 59.717696][ T6873] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.723570][ T6873] RIP: 0033:0x4b02a0 [ 59.727433][ T6873] Code: Bad RIP value. [ 59.731475][ T6873] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.739912][ T6873] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.747870][ T6873] RDX: 00000000000001c0 RSI: 000000c0000d04e0 RDI: ffffffffffffff9c [ 59.755828][ T6873] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 59.763774][ T6873] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.771718][ T6873] R13: 0000000000000028 R14: 0000000000000027 R15: 0000000000000100 [ 59.790545][ T6888] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6888 [ 59.800083][ T6888] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.806397][ T6888] CPU: 0 PID: 6888 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.815870][ T6888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.825904][ T6888] Call Trace: [ 59.829191][ T6888] dump_stack+0x18f/0x20d [ 59.833544][ T6888] check_preemption_disabled+0x20d/0x220 [ 59.839239][ T6888] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.844361][ T6888] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.849800][ T6888] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.855517][ T6888] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.860803][ T6888] ? ext4_ext_release+0x10/0x10 [ 59.865645][ T6888] ? down_write_killable+0x170/0x170 [ 59.870930][ T6888] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.876889][ T6888] ext4_map_blocks+0x4cb/0x1640 [ 59.881730][ T6888] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.886905][ T6888] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.892425][ T6888] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.898381][ T6888] ? prandom_u32_state+0xe/0x170 [ 59.903295][ T6888] ? __brelse+0x84/0xa0 [ 59.907426][ T6888] ? __ext4_new_inode+0x144/0x55e0 [ 59.912516][ T6888] ext4_getblk+0xad/0x520 [ 59.916822][ T6888] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.922521][ T6888] ? ext4_free_inode+0x1700/0x1700 [ 59.927632][ T6888] ext4_bread+0x7c/0x380 [ 59.931862][ T6888] ? ext4_getblk+0x520/0x520 [ 59.936437][ T6888] ? dquot_get_next_dqblk+0x180/0x180 [ 59.941799][ T6888] ext4_append+0x153/0x360 [ 59.946213][ T6888] ext4_mkdir+0x5e0/0xdf0 [ 59.950529][ T6888] ? ext4_rmdir+0xde0/0xde0 [ 59.955038][ T6888] ? security_inode_permission+0xc4/0xf0 [ 59.960679][ T6888] vfs_mkdir+0x419/0x690 [ 59.964912][ T6888] do_mkdirat+0x21e/0x280 [ 59.969230][ T6888] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.974071][ T6888] ? do_syscall_64+0x1c/0xe0 [ 59.978644][ T6888] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.984622][ T6888] do_syscall_64+0x60/0xe0 [ 59.989196][ T6888] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.995069][ T6888] RIP: 0033:0x45bee7 [ 59.998935][ T6888] Code: Bad RIP value. [ 60.002975][ T6888] RSP: 002b:00007ffc3dc9b238 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.011385][ T6888] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.019332][ T6888] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc3dc9b410 [ 60.027464][ T6888] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002980 [ 60.035411][ T6888] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.043473][ T6888] R13: 00007ffc3dc9b410 R14: 8421084210842109 R15: 00007ffc3dc9b41c [ 60.123753][ T6889] IPVS: ftp: loaded support on port[0] = 21 [ 60.159416][ T6889] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6889 [ 60.168988][ T6889] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.175116][ T6889] CPU: 1 PID: 6889 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.184646][ T6889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.194676][ T6889] Call Trace: [ 60.197944][ T6889] dump_stack+0x18f/0x20d [ 60.202265][ T6889] check_preemption_disabled+0x20d/0x220 [ 60.207874][ T6889] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.212970][ T6889] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.218417][ T6889] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.224114][ T6889] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.229378][ T6889] ? ext4_ext_release+0x10/0x10 [ 60.234216][ T6889] ? down_write_killable+0x170/0x170 [ 60.239474][ T6889] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.244921][ T6889] ext4_map_blocks+0x4cb/0x1640 [ 60.249750][ T6889] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.254933][ T6889] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.260475][ T6889] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.266437][ T6889] ? prandom_u32_state+0xe/0x170 [ 60.271353][ T6889] ? __brelse+0x84/0xa0 [ 60.275482][ T6889] ? __ext4_new_inode+0x144/0x55e0 [ 60.280593][ T6889] ext4_getblk+0xad/0x520 [ 60.284901][ T6889] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.290614][ T6889] ? ext4_free_inode+0x1700/0x1700 [ 60.295974][ T6889] ext4_bread+0x7c/0x380 [ 60.300216][ T6889] ? ext4_getblk+0x520/0x520 [ 60.304783][ T6889] ? dquot_get_next_dqblk+0x180/0x180 [ 60.310144][ T6889] ext4_append+0x153/0x360 [ 60.314801][ T6889] ext4_mkdir+0x5e0/0xdf0 [ 60.319123][ T6889] ? ext4_rmdir+0xde0/0xde0 [ 60.323622][ T6889] ? security_inode_permission+0xc4/0xf0 [ 60.329232][ T6889] vfs_mkdir+0x419/0x690 [ 60.333452][ T6889] do_mkdirat+0x21e/0x280 [ 60.337776][ T6889] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.342608][ T6889] ? do_syscall_64+0x1c/0xe0 [ 60.347179][ T6889] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.353137][ T6889] do_syscall_64+0x60/0xe0 [ 60.357546][ T6889] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.363430][ T6889] RIP: 0033:0x45bee7 [ 60.367307][ T6889] Code: Bad RIP value. [ 60.371348][ T6889] RSP: 002b:00007ffc3dc9b128 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.379834][ T6889] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.387809][ T6889] RDX: 00007ffc3dc9b173 RSI: 00000000000001ff RDI: 00007ffc3dc9b170 [ 60.395833][ T6889] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.403790][ T6889] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 60.411746][ T6889] R13: 00007ffc3dc9b160 R14: 0000000000000000 R15: 00007ffc3dc9b170 [ 60.461614][ T6889] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6889 [ 60.471091][ T6889] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.476986][ T6889] CPU: 0 PID: 6889 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.486431][ T6889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.496483][ T6889] Call Trace: [ 60.499792][ T6889] dump_stack+0x18f/0x20d [ 60.504134][ T6889] check_preemption_disabled+0x20d/0x220 [ 60.509778][ T6889] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.514905][ T6889] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.520479][ T6889] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.526203][ T6889] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.531481][ T6889] ? ext4_ext_release+0x10/0x10 [ 60.536398][ T6889] ? down_write_killable+0x170/0x170 [ 60.541673][ T6889] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.547254][ T6889] ext4_map_blocks+0x4cb/0x1640 [ 60.552114][ T6889] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.557305][ T6889] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.562846][ T6889] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.568824][ T6889] ? prandom_u32_state+0xe/0x170 [ 60.573758][ T6889] ? __brelse+0x84/0xa0 [ 60.577914][ T6889] ? __ext4_new_inode+0x144/0x55e0 [ 60.583029][ T6889] ext4_getblk+0xad/0x520 [ 60.587358][ T6889] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.593082][ T6889] ? ext4_free_inode+0x1700/0x1700 [ 60.598290][ T6889] ext4_bread+0x7c/0x380 [ 60.602516][ T6889] ? ext4_getblk+0x520/0x520 [ 60.607085][ T6889] ? dquot_get_next_dqblk+0x180/0x180 [ 60.612438][ T6889] ext4_append+0x153/0x360 [ 60.616834][ T6889] ext4_mkdir+0x5e0/0xdf0 [ 60.621145][ T6889] ? ext4_rmdir+0xde0/0xde0 [ 60.625627][ T6889] ? security_inode_permission+0xc4/0xf0 [ 60.631254][ T6889] vfs_mkdir+0x419/0x690 [ 60.635475][ T6889] do_mkdirat+0x21e/0x280 [ 60.639878][ T6889] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.644707][ T6889] ? do_syscall_64+0x1c/0xe0 [ 60.649276][ T6889] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.655235][ T6889] do_syscall_64+0x60/0xe0 [ 60.659628][ T6889] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.665550][ T6889] RIP: 0033:0x45bee7 [ 60.669418][ T6889] Code: Bad RIP value. [ 60.673486][ T6889] RSP: 002b:00007ffc3dc9b128 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.681875][ T6889] RAX: ffffffffffffffda RBX: 000000000000ec26 RCX: 000000000045bee7 [ 60.689844][ T6889] RDX: 00007ffc3dc9b173 RSI: 00000000000001ff RDI: 00007ffc3dc9b170 [ 60.698586][ T6889] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.706712][ T6889] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 60.714670][ T6889] R13: 00007ffc3dc9b160 R14: 000000000000ec14 R15: 00007ffc3dc9b170 2020/06/05 07:24:17 building call list... [ 60.970464][ T7] tipc: TX() has been purged, node left! executing program [ 62.504504][ T6875] can: request_module (can-proto-0) failed. [ 62.773226][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 62.782421][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.788321][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.797431][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.807519][ T1156] Call Trace: [ 62.810794][ T1156] dump_stack+0x18f/0x20d [ 62.815116][ T1156] check_preemption_disabled+0x20d/0x220 [ 62.820742][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.825866][ T1156] ? ext4_find_extent+0x81a/0xad0 [ 62.830875][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.836325][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.842036][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.847303][ T1156] ? ext4_ext_release+0x10/0x10 [ 62.852141][ T1156] ? down_write_killable+0x170/0x170 [ 62.857405][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.863106][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 62.867941][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.873118][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.878652][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.884608][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.890045][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 62.894960][ T1156] ? lock_release+0x710/0x800 [ 62.899713][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.905337][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.910959][ T1156] ? do_writepages+0xfa/0x2a0 [ 62.915629][ T1156] do_writepages+0xfa/0x2a0 [ 62.920123][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 62.925747][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 62.930782][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 62.935956][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 62.940790][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.946485][ T1156] ? collapse_file+0x35a2/0x4330 [ 62.951402][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.957450][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.962638][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.968606][ T1156] collapse_file+0x35ac/0x4330 [ 62.973360][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 62.978743][ T1156] ? khugepaged+0x2506/0x3fc0 [ 62.983411][ T1156] ? xas_find+0x31a/0x880 [ 62.987723][ T1156] ? check_preemption_disabled+0x38/0x220 [ 62.993486][ T1156] khugepaged+0x3041/0x3fc0 [ 62.998006][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.003625][ T1156] ? lock_downgrade+0x840/0x840 [ 63.008578][ T1156] ? finish_wait+0x260/0x260 [ 63.013171][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.018975][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.024943][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 63.029975][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.035601][ T1156] kthread+0x3b5/0x4a0 [ 63.039649][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.045343][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.051043][ T1156] ret_from_fork+0x1f/0x30 [ 63.153035][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 63.162511][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.168396][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 63.177476][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.187535][ T1156] Call Trace: [ 63.190821][ T1156] dump_stack+0x18f/0x20d [ 63.195135][ T1156] check_preemption_disabled+0x20d/0x220 [ 63.200751][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.205848][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.211300][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.217440][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.222709][ T1156] ? ext4_ext_release+0x10/0x10 [ 63.227566][ T1156] ? down_write_killable+0x170/0x170 [ 63.232913][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.238349][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 63.243180][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.248373][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.253896][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.259866][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.265321][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 63.270238][ T1156] ? lock_release+0x710/0x800 [ 63.274914][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.280544][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.286168][ T1156] ? do_writepages+0xfa/0x2a0 [ 63.290833][ T1156] do_writepages+0xfa/0x2a0 [ 63.295336][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 63.300950][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 63.305963][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 63.311153][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 63.316003][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.321712][ T1156] ? collapse_file+0x35a2/0x4330 [ 63.326628][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.332676][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.337864][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.344278][ T1156] collapse_file+0x35ac/0x4330 [ 63.349034][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 63.354390][ T1156] ? khugepaged+0x2506/0x3fc0 [ 63.359049][ T1156] ? xas_find+0x31a/0x880 [ 63.363356][ T1156] ? check_preemption_disabled+0x38/0x220 [ 63.369072][ T1156] khugepaged+0x3041/0x3fc0 [ 63.373592][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.379220][ T1156] ? lock_downgrade+0x840/0x840 [ 63.384063][ T1156] ? finish_wait+0x260/0x260 [ 63.388649][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.394434][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.400414][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 63.405431][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.411040][ T1156] kthread+0x3b5/0x4a0 [ 63.415086][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.420787][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.426519][ T1156] ret_from_fork+0x1f/0x30 [ 63.474903][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 63.484032][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.490000][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 63.499188][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.509223][ T1156] Call Trace: [ 63.512509][ T1156] dump_stack+0x18f/0x20d [ 63.516825][ T1156] check_preemption_disabled+0x20d/0x220 [ 63.522440][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.527535][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.532985][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.539119][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.544390][ T1156] ? ext4_ext_release+0x10/0x10 [ 63.549242][ T1156] ? down_write_killable+0x170/0x170 [ 63.554604][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.560054][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 63.564908][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.570102][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.575633][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.581596][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.587034][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 63.591958][ T1156] ? lock_release+0x710/0x800 [ 63.596643][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.602270][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.607880][ T1156] ? do_writepages+0xfa/0x2a0 [ 63.612537][ T1156] do_writepages+0xfa/0x2a0 [ 63.617036][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 63.622652][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 63.627672][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 63.632848][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 63.637693][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.643390][ T1156] ? collapse_file+0x35a2/0x4330 [ 63.648303][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.654350][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.659551][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.665527][ T1156] collapse_file+0x35ac/0x4330 [ 63.670284][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 63.675635][ T1156] ? khugepaged+0x2506/0x3fc0 [ 63.680311][ T1156] ? xas_find+0x31a/0x880 [ 63.684639][ T1156] ? check_preemption_disabled+0x38/0x220 [ 63.690346][ T1156] khugepaged+0x3041/0x3fc0 [ 63.694852][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.700465][ T1156] ? lock_downgrade+0x840/0x840 [ 63.705292][ T1156] ? finish_wait+0x260/0x260 [ 63.709891][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.715688][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.721664][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 63.726676][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.732288][ T1156] kthread+0x3b5/0x4a0 [ 63.736338][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.742037][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.747759][ T1156] ret_from_fork+0x1f/0x30 [ 63.872739][ T6875] can: request_module (can-proto-0) failed. [ 63.885394][ T6875] can: request_module (can-proto-0) failed.