[ 51.529154][ T388] process_one_work+0x965/0x1690 [ 51.534262][ T388] ? lock_release+0x800/0x800 [ 51.538946][ T388] ? pwq_dec_nr_in_flight+0x310/0x310 [ 51.545023][ T388] ? rwlock_bug.part.0+0x90/0x90 [ 51.549988][ T388] worker_thread+0x96/0xe10 [ 51.554514][ T388] ? process_one_work+0x1690/0x1690 [ 51.559729][ T388] kthread+0x3b5/0x4a0 [ 51.563805][ T388] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 51.569561][ T388] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 51.576248][ T388] ret_from_fork+0x1f/0x30 Starting Load/Save RF Kill Switch Status... [ 53.061177][ T6769] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6769 [ 53.071961][ T6769] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.077950][ T6769] CPU: 1 PID: 6769 Comm: systemd-rfkill Not tainted 5.7.0-next-20200605-syzkaller #0 [ 53.087390][ T6769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.097551][ T6769] Call Trace: [ 53.100922][ T6769] dump_stack+0x18f/0x20d [ 53.105233][ T6769] check_preemption_disabled+0x20d/0x220 [ 53.110851][ T6769] ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.115954][ T6769] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.122866][ T6769] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.129017][ T6769] ext4_ext_map_blocks+0x201b/0x33e0 [ 53.134807][ T6769] ? ext4_ext_release+0x10/0x10 [ 53.139748][ T6769] ? down_write_killable+0x170/0x170 [ 53.145027][ T6769] ? ext4_es_lookup_extent+0x41d/0xd10 [ 53.150488][ T6769] ext4_map_blocks+0x4cb/0x1640 [ 53.155317][ T6769] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.160495][ T6769] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.166018][ T6769] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.171973][ T6769] ? prandom_u32_state+0xe/0x170 [ 53.176907][ T6769] ? __brelse+0x84/0xa0 [ 53.181047][ T6769] ? __ext4_new_inode+0x144/0x55e0 [ 53.186161][ T6769] ext4_getblk+0xad/0x520 [ 53.190491][ T6769] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.196907][ T6769] ? ext4_free_inode+0x1700/0x1700 [ 53.202276][ T6769] ext4_bread+0x7c/0x380 [ 53.206592][ T6769] ? ext4_getblk+0x520/0x520 [ 53.211246][ T6769] ? dquot_get_next_dqblk+0x180/0x180 [ 53.216601][ T6769] ext4_append+0x153/0x360 [ 53.221970][ T6769] ext4_mkdir+0x5e0/0xdf0 [ 53.226288][ T6769] ? ext4_rmdir+0xde0/0xde0 [ 53.230789][ T6769] ? security_inode_permission+0xc4/0xf0 [ 53.236403][ T6769] vfs_mkdir+0x419/0x690 [ 53.241233][ T6769] do_mkdirat+0x21e/0x280 [ 53.246341][ T6769] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.251348][ T6769] ? do_syscall_64+0x1c/0xe0 [ 53.255926][ T6769] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.261902][ T6769] do_syscall_64+0x60/0xe0 [ 53.266317][ T6769] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.272204][ T6769] RIP: 0033:0x7f6d60012687 [ 53.276595][ T6769] Code: Bad RIP value. [ 53.280646][ T6769] RSP: 002b:00007ffd286d9ca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.289058][ T6769] RAX: ffffffffffffffda RBX: 000055f82bd8d985 RCX: 00007f6d60012687 [ 53.297005][ T6769] RDX: 00007ffd286d9b70 RSI: 00000000000001ed RDI: 000055f82bd8d985 [ 53.304954][ T6769] RBP: 00007f6d60012680 R08: 0000000000000100 R09: 0000000000000000 [ 53.312903][ T6769] R10: 000055f82bd8d980 R11: 0000000000000246 R12: 00000000000001ed [ 53.320889][ T6769] R13: 00007ffd286d9e30 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.23' (ECDSA) to the list of known hosts. 2020/06/07 10:17:41 fuzzer started 2020/06/07 10:17:41 connecting to host at 10.128.0.26:43507 2020/06/07 10:17:41 checking machine... 2020/06/07 10:17:41 checking revisions... 2020/06/07 10:17:41 testing simple program... syzkaller login: [ 58.385139][ T6848] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6848 [ 58.394246][ T6848] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.400495][ T6848] CPU: 0 PID: 6848 Comm: syz-fuzzer Not tainted 5.7.0-next-20200605-syzkaller #0 [ 58.409605][ T6848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.419662][ T6848] Call Trace: [ 58.422972][ T6848] dump_stack+0x18f/0x20d [ 58.427318][ T6848] check_preemption_disabled+0x20d/0x220 [ 58.432997][ T6848] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.438127][ T6848] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.443591][ T6848] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.449310][ T6848] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.454644][ T6848] ? ext4_ext_release+0x10/0x10 [ 58.459482][ T6848] ? down_write_killable+0x170/0x170 [ 58.464750][ T6848] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.470187][ T6848] ext4_map_blocks+0x4cb/0x1640 [ 58.475127][ T6848] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.480489][ T6848] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.486021][ T6848] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.491986][ T6848] ? prandom_u32_state+0xe/0x170 [ 58.496929][ T6848] ? __brelse+0x84/0xa0 [ 58.501078][ T6848] ? __ext4_new_inode+0x144/0x55e0 [ 58.506398][ T6848] ext4_getblk+0xad/0x520 [ 58.510709][ T6848] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.516437][ T6848] ? ext4_free_inode+0x1700/0x1700 [ 58.521532][ T6848] ext4_bread+0x7c/0x380 [ 58.525755][ T6848] ? ext4_getblk+0x520/0x520 [ 58.530352][ T6848] ? dquot_get_next_dqblk+0x180/0x180 [ 58.535756][ T6848] ext4_append+0x153/0x360 [ 58.540160][ T6848] ext4_mkdir+0x5e0/0xdf0 [ 58.544501][ T6848] ? ext4_rmdir+0xde0/0xde0 [ 58.549025][ T6848] ? security_inode_permission+0xc4/0xf0 [ 58.554645][ T6848] vfs_mkdir+0x419/0x690 [ 58.558871][ T6848] do_mkdirat+0x21e/0x280 [ 58.563178][ T6848] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.568010][ T6848] ? do_syscall_64+0x1c/0xe0 [ 58.572581][ T6848] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.578541][ T6848] do_syscall_64+0x60/0xe0 [ 58.582936][ T6848] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.589675][ T6848] RIP: 0033:0x4b02a0 [ 58.593542][ T6848] Code: Bad RIP value. [ 58.597589][ T6848] RSP: 002b:000000c0000cf4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.605976][ T6848] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 58.613940][ T6848] RDX: 00000000000001c0 RSI: 000000c0000e4b80 RDI: ffffffffffffff9c [ 58.622089][ T6848] RBP: 000000c0000cf510 R08: 0000000000000000 R09: 0000000000000000 [ 58.630036][ T6848] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.637984][ T6848] R13: 000000000000005d R14: 000000000000005c R15: 0000000000000100 [ 58.656334][ T6851] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6851 [ 58.665796][ T6851] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.671668][ T6851] CPU: 0 PID: 6851 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 58.681093][ T6851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.691124][ T6851] Call Trace: [ 58.694403][ T6851] dump_stack+0x18f/0x20d [ 58.698774][ T6851] check_preemption_disabled+0x20d/0x220 [ 58.704467][ T6851] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.709579][ T6851] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.715214][ T6851] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.720922][ T6851] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.726196][ T6851] ? ext4_ext_release+0x10/0x10 [ 58.731036][ T6851] ? down_write_killable+0x170/0x170 [ 58.736297][ T6851] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.741745][ T6851] ext4_map_blocks+0x4cb/0x1640 [ 58.746575][ T6851] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.751746][ T6851] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.757473][ T6851] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.763438][ T6851] ? prandom_u32_state+0xe/0x170 [ 58.768445][ T6851] ? __brelse+0x84/0xa0 [ 58.772590][ T6851] ? __ext4_new_inode+0x144/0x55e0 [ 58.777698][ T6851] ext4_getblk+0xad/0x520 [ 58.782015][ T6851] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.787712][ T6851] ? ext4_free_inode+0x1700/0x1700 [ 58.792799][ T6851] ext4_bread+0x7c/0x380 [ 58.797017][ T6851] ? ext4_getblk+0x520/0x520 [ 58.801581][ T6851] ? dquot_get_next_dqblk+0x180/0x180 [ 58.806932][ T6851] ext4_append+0x153/0x360 [ 58.811326][ T6851] ext4_mkdir+0x5e0/0xdf0 [ 58.815648][ T6851] ? ext4_rmdir+0xde0/0xde0 [ 58.820138][ T6851] ? security_inode_permission+0xc4/0xf0 [ 58.825752][ T6851] vfs_mkdir+0x419/0x690 [ 58.829970][ T6851] do_mkdirat+0x21e/0x280 [ 58.834284][ T6851] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.839109][ T6851] ? do_syscall_64+0x1c/0xe0 [ 58.843685][ T6851] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.849651][ T6851] do_syscall_64+0x60/0xe0 [ 58.854042][ T6851] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.859907][ T6851] RIP: 0033:0x45bee7 [ 58.864324][ T6851] Code: Bad RIP value. [ 58.868371][ T6851] RSP: 002b:00007ffd152be2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.876763][ T6851] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.884724][ T6851] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffd152be4c0 [ 58.892850][ T6851] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002900 [ 58.900806][ T6851] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.908763][ T6851] R13: 00007ffd152be4c0 R14: 8421084210842109 R15: 00007ffd152be4cc [ 58.990662][ T6852] IPVS: ftp: loaded support on port[0] = 21 [ 59.031181][ T6852] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6852 [ 59.040697][ T6852] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.046672][ T6852] CPU: 1 PID: 6852 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.056118][ T6852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.066155][ T6852] Call Trace: [ 59.069448][ T6852] dump_stack+0x18f/0x20d [ 59.073762][ T6852] check_preemption_disabled+0x20d/0x220 [ 59.079424][ T6852] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.084538][ T6852] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.089974][ T6852] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.095677][ T6852] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.100950][ T6852] ? ext4_ext_release+0x10/0x10 [ 59.105811][ T6852] ? down_write_killable+0x170/0x170 [ 59.111161][ T6852] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.116618][ T6852] ext4_map_blocks+0x4cb/0x1640 [ 59.121471][ T6852] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.126647][ T6852] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.132171][ T6852] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.138137][ T6852] ? prandom_u32_state+0xe/0x170 [ 59.143052][ T6852] ? __brelse+0x84/0xa0 [ 59.147206][ T6852] ? __ext4_new_inode+0x144/0x55e0 [ 59.153163][ T6852] ext4_getblk+0xad/0x520 [ 59.157472][ T6852] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.163622][ T6852] ? ext4_free_inode+0x1700/0x1700 [ 59.168711][ T6852] ext4_bread+0x7c/0x380 [ 59.172929][ T6852] ? ext4_getblk+0x520/0x520 [ 59.177499][ T6852] ? dquot_get_next_dqblk+0x180/0x180 [ 59.182852][ T6852] ext4_append+0x153/0x360 [ 59.187248][ T6852] ext4_mkdir+0x5e0/0xdf0 [ 59.191559][ T6852] ? ext4_rmdir+0xde0/0xde0 [ 59.203708][ T6852] ? security_inode_permission+0xc4/0xf0 [ 59.209396][ T6852] vfs_mkdir+0x419/0x690 [ 59.213898][ T6852] do_mkdirat+0x21e/0x280 [ 59.218268][ T6852] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.223153][ T6852] ? do_syscall_64+0x1c/0xe0 [ 59.227726][ T6852] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.233688][ T6852] do_syscall_64+0x60/0xe0 [ 59.238092][ T6852] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.243978][ T6852] RIP: 0033:0x45bee7 [ 59.247844][ T6852] Code: Bad RIP value. [ 59.251896][ T6852] RSP: 002b:00007ffd152be1d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 59.260318][ T6852] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.268283][ T6852] RDX: 00007ffd152be223 RSI: 00000000000001ff RDI: 00007ffd152be220 [ 59.276251][ T6852] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.284215][ T6852] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 59.292165][ T6852] R13: 00007ffd152be210 R14: 0000000000000000 R15: 00007ffd152be220 [ 59.346919][ T6852] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6852 [ 59.356701][ T6852] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.362601][ T6852] CPU: 1 PID: 6852 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.372045][ T6852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.382096][ T6852] Call Trace: [ 59.385398][ T6852] dump_stack+0x18f/0x20d [ 59.389740][ T6852] check_preemption_disabled+0x20d/0x220 [ 59.395382][ T6852] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.400513][ T6852] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.405980][ T6852] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.411714][ T6852] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.417163][ T6852] ? ext4_ext_release+0x10/0x10 [ 59.422142][ T6852] ? down_write_killable+0x170/0x170 [ 59.427412][ T6852] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.432852][ T6852] ext4_map_blocks+0x4cb/0x1640 [ 59.445153][ T6852] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.450339][ T6852] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.465066][ T6852] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.471049][ T6852] ? prandom_u32_state+0xe/0x170 [ 59.475967][ T6852] ? __brelse+0x84/0xa0 [ 59.480100][ T6852] ? __ext4_new_inode+0x144/0x55e0 [ 59.486160][ T6852] ext4_getblk+0xad/0x520 [ 59.490485][ T6852] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.496198][ T6852] ? ext4_free_inode+0x1700/0x1700 [ 59.501290][ T6852] ext4_bread+0x7c/0x380 [ 59.505534][ T6852] ? ext4_getblk+0x520/0x520 [ 59.510105][ T6852] ? dquot_get_next_dqblk+0x180/0x180 [ 59.515481][ T6852] ext4_append+0x153/0x360 [ 59.519882][ T6852] ext4_mkdir+0x5e0/0xdf0 [ 59.524199][ T6852] ? ext4_rmdir+0xde0/0xde0 [ 59.528686][ T6852] ? security_inode_permission+0xc4/0xf0 [ 59.534327][ T6852] vfs_mkdir+0x419/0x690 [ 59.538550][ T6852] do_mkdirat+0x21e/0x280 [ 59.542987][ T6852] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.547984][ T6852] ? do_syscall_64+0x1c/0xe0 [ 59.552568][ T6852] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.558537][ T6852] do_syscall_64+0x60/0xe0 [ 59.562953][ T6852] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.569456][ T6852] RIP: 0033:0x45bee7 [ 59.573333][ T6852] Code: Bad RIP value. [ 59.577387][ T6852] RSP: 002b:00007ffd152be1d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 59.585795][ T6852] RAX: ffffffffffffffda RBX: 000000000000e7c9 RCX: 000000000045bee7 2020/06/07 10:17:43 building call list... [ 59.593746][ T6852] RDX: 00007ffd152be223 RSI: 00000000000001ff RDI: 00007ffd152be220 [ 59.601711][ T6852] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.610615][ T6852] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 59.618598][ T6852] R13: 00007ffd152be210 R14: 000000000000e7b4 R15: 00007ffd152be220 [ 59.873709][ T26] tipc: TX() has been purged, node left! executing program [ 61.466264][ T6834] can: request_module (can-proto-0) failed. [ 61.477384][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 61.487082][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.495319][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 61.504504][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.514581][ T1156] Call Trace: [ 61.517874][ T1156] dump_stack+0x18f/0x20d [ 61.522205][ T1156] check_preemption_disabled+0x20d/0x220 [ 61.527835][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.532972][ T1156] ? ext4_find_extent+0x81a/0xad0 [ 61.538091][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.543538][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.549248][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.554531][ T1156] ? ext4_ext_release+0x10/0x10 [ 61.559380][ T1156] ? down_write_killable+0x170/0x170 [ 61.564647][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.570091][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 61.574925][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.580111][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.585636][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.591602][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.597049][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 61.601968][ T1156] ? lock_release+0x710/0x800 [ 61.606636][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.612267][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.617993][ T1156] ? do_writepages+0xfa/0x2a0 [ 61.622657][ T1156] do_writepages+0xfa/0x2a0 [ 61.627149][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 61.632760][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 61.637786][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 61.642978][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 61.647816][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.653532][ T1156] ? collapse_file+0x35a2/0x4330 [ 61.658533][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.664586][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.669764][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.675748][ T1156] collapse_file+0x35ac/0x4330 [ 61.680508][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 61.685871][ T1156] ? khugepaged+0x2506/0x3fc0 [ 61.690550][ T1156] ? xas_find+0x31a/0x880 [ 61.694871][ T1156] ? check_preemption_disabled+0x38/0x220 [ 61.700588][ T1156] khugepaged+0x3041/0x3fc0 [ 61.705095][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.710717][ T1156] ? lock_downgrade+0x840/0x840 [ 61.715820][ T1156] ? finish_wait+0x260/0x260 [ 61.720391][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.726180][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.732153][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 61.737174][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.742798][ T1156] kthread+0x3b5/0x4a0 [ 61.746848][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.753847][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.759566][ T1156] ret_from_fork+0x1f/0x30 [ 61.838226][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 61.847480][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.853902][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 61.863047][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.873096][ T1156] Call Trace: [ 61.876379][ T1156] dump_stack+0x18f/0x20d [ 61.880717][ T1156] check_preemption_disabled+0x20d/0x220 [ 61.886420][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.891533][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.896982][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.903298][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.908570][ T1156] ? ext4_ext_release+0x10/0x10 [ 61.913421][ T1156] ? down_write_killable+0x170/0x170 [ 61.918682][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.924126][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 61.928955][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.934145][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.939667][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.945622][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.951055][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 61.955970][ T1156] ? lock_release+0x710/0x800 [ 61.960637][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.966272][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.971890][ T1156] ? do_writepages+0xfa/0x2a0 [ 61.976542][ T1156] do_writepages+0xfa/0x2a0 [ 61.981127][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 61.986757][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 61.991763][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 61.996965][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 62.001800][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.007497][ T1156] ? collapse_file+0x35a2/0x4330 [ 62.012414][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.018475][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.023752][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.029744][ T1156] collapse_file+0x35ac/0x4330 [ 62.034504][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 62.039855][ T1156] ? khugepaged+0x2506/0x3fc0 [ 62.044519][ T1156] ? xas_find+0x31a/0x880 [ 62.048834][ T1156] ? check_preemption_disabled+0x38/0x220 [ 62.054547][ T1156] khugepaged+0x3041/0x3fc0 [ 62.059045][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.064656][ T1156] ? lock_downgrade+0x840/0x840 [ 62.069494][ T1156] ? finish_wait+0x260/0x260 [ 62.074062][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.081075][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.087035][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 62.092043][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.097749][ T1156] kthread+0x3b5/0x4a0 [ 62.101796][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.107577][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.113291][ T1156] ret_from_fork+0x1f/0x30 [ 62.157375][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 62.166647][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.172527][ T1156] CPU: 1 PID: 1156 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.181607][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.191925][ T1156] Call Trace: [ 62.195202][ T1156] dump_stack+0x18f/0x20d [ 62.199522][ T1156] check_preemption_disabled+0x20d/0x220 [ 62.205570][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.210666][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.216106][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.222250][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.227520][ T1156] ? ext4_ext_release+0x10/0x10 [ 62.232460][ T1156] ? down_write_killable+0x170/0x170 [ 62.237905][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.243382][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 62.248240][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.253444][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.258976][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.264945][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.270382][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 62.275305][ T1156] ? lock_release+0x710/0x800 [ 62.279967][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.285589][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.291196][ T1156] ? do_writepages+0xfa/0x2a0 [ 62.295851][ T1156] do_writepages+0xfa/0x2a0 [ 62.300345][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 62.305975][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 62.311023][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 62.316224][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 62.321061][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.326777][ T1156] ? collapse_file+0x35a2/0x4330 [ 62.331696][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.337747][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.342930][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.348904][ T1156] collapse_file+0x35ac/0x4330 [ 62.353686][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 62.359035][ T1156] ? khugepaged+0x2506/0x3fc0 [ 62.363716][ T1156] ? xas_find+0x31a/0x880 [ 62.368036][ T1156] ? check_preemption_disabled+0x38/0x220 [ 62.373734][ T1156] khugepaged+0x3041/0x3fc0 [ 62.378238][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.383865][ T1156] ? lock_downgrade+0x840/0x840 [ 62.388699][ T1156] ? finish_wait+0x260/0x260 [ 62.393353][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.399133][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.405093][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 62.410093][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.415705][ T1156] kthread+0x3b5/0x4a0 [ 62.419768][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.425478][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.431194][ T1156] ret_from_fork+0x1f/0x30 [ 62.709495][ T6834] can: request_module (can-proto-0) failed. [ 62.721349][ T6834] can: request_module (can-proto-0) failed.