Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. 2020/06/03 12:00:44 fuzzer started 2020/06/03 12:00:44 connecting to host at 10.128.0.26:37293 2020/06/03 12:00:44 checking machine... 2020/06/03 12:00:44 checking revisions... 2020/06/03 12:00:44 testing simple program... [ 58.966768][ T6829] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6829 [ 58.975866][ T6829] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.981763][ T6829] CPU: 0 PID: 6829 Comm: syz-fuzzer Not tainted 5.7.0-next-20200603-syzkaller #0 [ 58.990947][ T6829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.000994][ T6829] Call Trace: [ 59.004287][ T6829] dump_stack+0x18f/0x20d [ 59.008624][ T6829] check_preemption_disabled+0x20d/0x220 [ 59.014255][ T6829] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.019368][ T6829] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.024821][ T6829] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.030963][ T6829] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.036240][ T6829] ? ext4_ext_release+0x10/0x10 [ 59.041096][ T6829] ? down_write_killable+0x170/0x170 [ 59.046584][ T6829] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.052082][ T6829] ext4_map_blocks+0x4cb/0x1640 [ 59.056937][ T6829] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.062143][ T6829] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.067671][ T6829] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.074340][ T6829] ? prandom_u32_state+0xe/0x170 [ 59.079269][ T6829] ? __brelse+0x84/0xa0 [ 59.086344][ T6829] ? __ext4_new_inode+0x144/0x55e0 [ 59.091444][ T6829] ext4_getblk+0xad/0x520 [ 59.095781][ T6829] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.101532][ T6829] ? ext4_free_inode+0x1700/0x1700 [ 59.106651][ T6829] ext4_bread+0x7c/0x380 [ 59.110889][ T6829] ? ext4_getblk+0x520/0x520 [ 59.115472][ T6829] ? dquot_get_next_dqblk+0x180/0x180 [ 59.120882][ T6829] ext4_append+0x153/0x360 [ 59.125303][ T6829] ext4_mkdir+0x5e0/0xdf0 [ 59.129634][ T6829] ? ext4_rmdir+0xde0/0xde0 [ 59.134141][ T6829] ? security_inode_permission+0xc4/0xf0 [ 59.139782][ T6829] vfs_mkdir+0x419/0x690 [ 59.144107][ T6829] do_mkdirat+0x21e/0x280 [ 59.148421][ T6829] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.153275][ T6829] ? do_syscall_64+0x1c/0xe0 [ 59.157872][ T6829] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.163848][ T6829] do_syscall_64+0x60/0xe0 [ 59.168242][ T6829] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.174133][ T6829] RIP: 0033:0x4b02a0 [ 59.178016][ T6829] Code: Bad RIP value. [ 59.182063][ T6829] RSP: 002b:000000c0000e34b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.190553][ T6829] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.198524][ T6829] RDX: 00000000000001c0 RSI: 000000c000026740 RDI: ffffffffffffff9c [ 59.207103][ T6829] RBP: 000000c0000e3510 R08: 0000000000000000 R09: 0000000000000000 [ 59.215080][ T6829] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.223050][ T6829] R13: 000000000000003b R14: 000000000000003a R15: 0000000000000100 [ 59.241913][ T6841] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6841 [ 59.251367][ T6841] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.257455][ T6841] CPU: 0 PID: 6841 Comm: syz-executor.0 Not tainted 5.7.0-next-20200603-syzkaller #0 [ 59.267118][ T6841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.277279][ T6841] Call Trace: [ 59.280616][ T6841] dump_stack+0x18f/0x20d [ 59.284937][ T6841] check_preemption_disabled+0x20d/0x220 [ 59.290599][ T6841] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.295727][ T6841] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.301193][ T6841] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.306908][ T6841] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.312591][ T6841] ? ext4_ext_release+0x10/0x10 [ 59.317469][ T6841] ? down_write_killable+0x170/0x170 [ 59.322747][ T6841] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.328222][ T6841] ext4_map_blocks+0x4cb/0x1640 [ 59.333063][ T6841] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.338247][ T6841] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.343792][ T6841] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.349769][ T6841] ? prandom_u32_state+0xe/0x170 [ 59.354690][ T6841] ? __brelse+0x84/0xa0 [ 59.358833][ T6841] ? __ext4_new_inode+0x144/0x55e0 [ 59.363946][ T6841] ext4_getblk+0xad/0x520 [ 59.368257][ T6841] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.373970][ T6841] ? ext4_free_inode+0x1700/0x1700 [ 59.379096][ T6841] ext4_bread+0x7c/0x380 [ 59.383335][ T6841] ? ext4_getblk+0x520/0x520 [ 59.387907][ T6841] ? dquot_get_next_dqblk+0x180/0x180 [ 59.393287][ T6841] ext4_append+0x153/0x360 [ 59.397700][ T6841] ext4_mkdir+0x5e0/0xdf0 [ 59.402011][ T6841] ? ext4_rmdir+0xde0/0xde0 [ 59.406500][ T6841] ? security_inode_permission+0xc4/0xf0 [ 59.412114][ T6841] vfs_mkdir+0x419/0x690 [ 59.416338][ T6841] do_mkdirat+0x21e/0x280 [ 59.420666][ T6841] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.425524][ T6841] ? do_syscall_64+0x1c/0xe0 [ 59.430099][ T6841] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.436092][ T6841] do_syscall_64+0x60/0xe0 [ 59.440495][ T6841] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.446374][ T6841] RIP: 0033:0x45bee7 [ 59.450256][ T6841] Code: Bad RIP value. [ 59.454314][ T6841] RSP: 002b:00007ffc589cf9a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.462702][ T6841] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.470664][ T6841] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc589cfb80 [ 59.478630][ T6841] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002c00 [ 59.486768][ T6841] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.494751][ T6841] R13: 00007ffc589cfb80 R14: 8421084210842109 R15: 00007ffc589cfb8c [ 59.576697][ T6842] IPVS: ftp: loaded support on port[0] = 21 [ 59.597118][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 59.608250][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.614230][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-next-20200603-syzkaller #0 [ 59.623354][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.633390][ T1153] Call Trace: [ 59.636682][ T1153] dump_stack+0x18f/0x20d [ 59.640994][ T1153] check_preemption_disabled+0x20d/0x220 [ 59.646636][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.651749][ T1153] ? ext4_find_extent+0x81a/0xad0 [ 59.656761][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.662205][ T1153] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.667948][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.673231][ T1153] ? ext4_ext_release+0x10/0x10 [ 59.678068][ T1153] ? down_write_killable+0x170/0x170 [ 59.683347][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.688810][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 59.693655][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.698837][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.704379][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.710355][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.715793][ T1153] ext4_writepages+0x1ab5/0x3400 [ 59.720726][ T1153] ? mark_lock+0x20/0xdd0 [ 59.725068][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.730694][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.736307][ T1153] ? do_writepages+0xfa/0x2a0 [ 59.740961][ T1153] do_writepages+0xfa/0x2a0 [ 59.745447][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 59.751059][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 59.756072][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 59.761264][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 59.766098][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.771800][ T1153] ? collapse_file+0x35a2/0x4330 [ 59.776716][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.782768][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.787947][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.793910][ T1153] collapse_file+0x35ac/0x4330 [ 59.798661][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 59.804026][ T1153] ? khugepaged+0x2506/0x3fc0 [ 59.808792][ T1153] ? xas_find+0x31a/0x880 [ 59.813102][ T1153] ? check_preemption_disabled+0x38/0x220 [ 59.818820][ T1153] khugepaged+0x3041/0x3fc0 [ 59.823337][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.828971][ T1153] ? lock_downgrade+0x840/0x840 [ 59.833805][ T1153] ? finish_wait+0x260/0x260 [ 59.838397][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.844192][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.850170][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 59.855174][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.860811][ T1153] kthread+0x3b5/0x4a0 [ 59.864872][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.870579][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.876975][ T1153] ret_from_fork+0x1f/0x30 [ 59.918433][ T6842] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6842 [ 59.928454][ T6842] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.934955][ T6842] CPU: 0 PID: 6842 Comm: syz-executor.0 Not tainted 5.7.0-next-20200603-syzkaller #0 [ 59.944425][ T6842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.954482][ T6842] Call Trace: [ 59.957775][ T6842] dump_stack+0x18f/0x20d [ 59.959833][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 59.962107][ T6842] check_preemption_disabled+0x20d/0x220 [ 59.971178][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.976734][ T6842] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.976758][ T6842] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.976774][ T6842] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.976797][ T6842] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.976819][ T6842] ? ext4_ext_release+0x10/0x10 [ 59.976853][ T6842] ? down_write_killable+0x170/0x170 [ 59.976872][ T6842] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.019740][ T6842] ext4_map_blocks+0x4cb/0x1640 [ 60.024582][ T6842] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.029783][ T6842] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.035407][ T6842] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.041372][ T6842] ? prandom_u32_state+0xe/0x170 [ 60.046314][ T6842] ? __brelse+0x84/0xa0 [ 60.050477][ T6842] ? __ext4_new_inode+0x144/0x55e0 [ 60.055599][ T6842] ext4_getblk+0xad/0x520 [ 60.059917][ T6842] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.065972][ T6842] ? ext4_free_inode+0x1700/0x1700 [ 60.071088][ T6842] ext4_bread+0x7c/0x380 [ 60.075318][ T6842] ? ext4_getblk+0x520/0x520 [ 60.080778][ T6842] ? dquot_get_next_dqblk+0x180/0x180 [ 60.086399][ T6842] ext4_append+0x153/0x360 [ 60.091098][ T6842] ext4_mkdir+0x5e0/0xdf0 [ 60.095432][ T6842] ? ext4_rmdir+0xde0/0xde0 [ 60.099922][ T6842] ? security_inode_permission+0xc4/0xf0 [ 60.105545][ T6842] vfs_mkdir+0x419/0x690 [ 60.109780][ T6842] do_mkdirat+0x21e/0x280 [ 60.114100][ T6842] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.118935][ T6842] ? do_syscall_64+0x1c/0xe0 [ 60.123508][ T6842] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.129489][ T6842] do_syscall_64+0x60/0xe0 [ 60.133940][ T6842] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.139847][ T6842] RIP: 0033:0x45bee7 [ 60.143722][ T6842] Code: Bad RIP value. [ 60.147774][ T6842] RSP: 002b:00007ffc589cf898 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.156183][ T6842] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.164773][ T6842] RDX: 00007ffc589cf8e3 RSI: 00000000000001ff RDI: 00007ffc589cf8e0 [ 60.172752][ T6842] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.180710][ T6842] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 60.188668][ T6842] R13: 00007ffc589cf8d0 R14: 0000000000000000 R15: 00007ffc589cf8e0 [ 60.196664][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-next-20200603-syzkaller #0 [ 60.205866][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.215923][ T1153] Call Trace: [ 60.219221][ T1153] dump_stack+0x18f/0x20d [ 60.223560][ T1153] check_preemption_disabled+0x20d/0x220 [ 60.229197][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.234328][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.239882][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.240642][ T6842] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6842 [ 60.246053][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.246082][ T1153] ? ext4_ext_release+0x10/0x10 [ 60.246114][ T1153] ? down_write_killable+0x170/0x170 [ 60.255497][ T6842] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.260996][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.282435][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 60.287279][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.292468][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.298014][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.303993][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.309441][ T1153] ext4_writepages+0x1ab5/0x3400 [ 60.314368][ T1153] ? mark_lock+0x20/0xdd0 [ 60.318705][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.324338][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.329962][ T1153] ? do_writepages+0xfa/0x2a0 [ 60.334620][ T1153] do_writepages+0xfa/0x2a0 [ 60.339125][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 60.344760][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 60.349775][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 60.354961][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 60.359795][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.365584][ T1153] ? collapse_file+0x35a2/0x4330 [ 60.370501][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.376559][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.381740][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.387722][ T1153] collapse_file+0x35ac/0x4330 [ 60.392482][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 60.397836][ T1153] ? khugepaged+0x2506/0x3fc0 [ 60.402518][ T1153] ? xas_find+0x31a/0x880 [ 60.406844][ T1153] ? check_preemption_disabled+0x38/0x220 [ 60.412547][ T1153] khugepaged+0x3041/0x3fc0 [ 60.417151][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.422777][ T1153] ? lock_downgrade+0x840/0x840 [ 60.427628][ T1153] ? finish_wait+0x260/0x260 [ 60.432213][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.438000][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.443983][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 60.448989][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.454602][ T1153] kthread+0x3b5/0x4a0 [ 60.458654][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.469821][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.475523][ T1153] ret_from_fork+0x1f/0x30 [ 60.479936][ T6842] CPU: 0 PID: 6842 Comm: syz-executor.0 Not tainted 5.7.0-next-20200603-syzkaller #0 [ 60.489400][ T6842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.499458][ T6842] Call Trace: [ 60.502765][ T6842] dump_stack+0x18f/0x20d [ 60.507108][ T6842] check_preemption_disabled+0x20d/0x220 [ 60.512770][ T6842] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.517899][ T6842] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.523360][ T6842] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.529083][ T6842] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.534386][ T6842] ? ext4_ext_release+0x10/0x10 [ 60.539261][ T6842] ? down_write_killable+0x170/0x170 [ 60.544550][ T6842] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.550028][ T6842] ext4_map_blocks+0x4cb/0x1640 [ 60.554892][ T6842] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.560093][ T6842] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.565644][ T6842] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.571632][ T6842] ? prandom_u32_state+0xe/0x170 [ 60.576656][ T6842] ? __brelse+0x84/0xa0 [ 60.580810][ T6842] ? __ext4_new_inode+0x144/0x55e0 [ 60.585940][ T6842] ext4_getblk+0xad/0x520 [ 60.590273][ T6842] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.596016][ T6842] ? ext4_free_inode+0x1700/0x1700 [ 60.602084][ T6842] ext4_bread+0x7c/0x380 [ 60.606335][ T6842] ? ext4_getblk+0x520/0x520 [ 60.610919][ T6842] ? dquot_get_next_dqblk+0x180/0x180 [ 60.616296][ T6842] ext4_append+0x153/0x360 [ 60.620719][ T6842] ext4_mkdir+0x5e0/0xdf0 [ 60.625067][ T6842] ? ext4_rmdir+0xde0/0xde0 [ 60.629576][ T6842] ? security_inode_permission+0xc4/0xf0 [ 60.635217][ T6842] vfs_mkdir+0x419/0x690 [ 60.639470][ T6842] do_mkdirat+0x21e/0x280 [ 60.644066][ T6842] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.648918][ T6842] ? do_syscall_64+0x1c/0xe0 [ 60.653298][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 60.653506][ T6842] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.662988][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.668462][ T6842] do_syscall_64+0x60/0xe0 [ 60.678722][ T6842] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.684598][ T6842] RIP: 0033:0x45bee7 [ 60.688478][ T6842] Code: Bad RIP value. [ 60.692536][ T6842] RSP: 002b:00007ffc589cf898 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.700928][ T6842] RAX: ffffffffffffffda RBX: 000000000000eb46 RCX: 000000000045bee7 [ 60.708881][ T6842] RDX: 00007ffc589cf8e3 RSI: 00000000000001ff RDI: 00007ffc589cf8e0 [ 60.716842][ T6842] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.724808][ T6842] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.732762][ T6842] R13: 00007ffc589cf8d0 R14: 000000000000eb42 R15: 00007ffc589cf8e0 [ 60.740758][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-next-20200603-syzkaller #0 [ 60.749871][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.759952][ T1153] Call Trace: [ 60.763257][ T1153] dump_stack+0x18f/0x20d [ 60.767601][ T1153] check_preemption_disabled+0x20d/0x220 [ 60.773244][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.778369][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.784531][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.791120][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.796412][ T1153] ? ext4_ext_release+0x10/0x10 [ 60.801284][ T1153] ? down_write_killable+0x170/0x170 [ 60.806568][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.812064][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 60.816927][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 2020/06/03 12:00:46 building call list... [ 60.822136][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.827700][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.833687][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.839153][ T1153] ext4_writepages+0x1ab5/0x3400 [ 60.844102][ T1153] ? mark_lock+0x20/0xdd0 [ 60.848443][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.854099][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.859729][ T1153] ? do_writepages+0xfa/0x2a0 [ 60.864417][ T1153] do_writepages+0xfa/0x2a0 [ 60.868922][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 60.874660][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 60.879728][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 60.884929][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 60.889783][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.895501][ T1153] ? collapse_file+0x35a2/0x4330 [ 60.900634][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.906731][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.911941][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.917936][ T1153] collapse_file+0x35ac/0x4330 [ 60.922725][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 60.928090][ T1153] ? khugepaged+0x2506/0x3fc0 [ 60.932779][ T1153] ? xas_find+0x31a/0x880 [ 60.937105][ T1153] ? check_preemption_disabled+0x38/0x220 [ 60.942824][ T1153] khugepaged+0x3041/0x3fc0 [ 60.947350][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.954368][ T1153] ? lock_downgrade+0x840/0x840 [ 60.959477][ T1153] ? finish_wait+0x260/0x260 [ 60.964065][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.969900][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.975881][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 60.980904][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.986537][ T1153] kthread+0x3b5/0x4a0 [ 60.990601][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.996316][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.002085][ T1153] ret_from_fork+0x1f/0x30 [ 61.252081][ T430] tipc: TX() has been purged, node left! executing program [ 62.568166][ T6868] can: request_module (can-proto-0) failed. [ 63.208039][ T6868] can: request_module (can-proto-0) failed. [ 63.219378][ T6868] can: request_module (can-proto-0) failed.