[ 50.381099][ T6748] RAX: ffffffffffffffda RBX: 0000564c91ce7985 RCX: 00007f0c90815687 [ 50.389080][ T6748] RDX: 00007ffe6b16df70 RSI: 00000000000001ed RDI: 0000564c91ce7985 [ 50.397056][ T6748] RBP: 00007f0c90815680 R08: 0000000000000100 R09: 0000000000000000 [ 50.405034][ T6748] R10: 0000564c91ce7980 R11: 0000000000000246 R12: 00000000000001ed [ 50.413013][ T6748] R13: 00007ffe6b16e230 R14: 0000000000000000 R15: 0000000000000000 Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.012744][ T211] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:5/211 [ 57.022049][ T211] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.028327][ T211] CPU: 0 PID: 211 Comm: kworker/u4:5 Not tainted 5.7.0-syzkaller #0 [ 57.036313][ T211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.046459][ T211] Workqueue: writeback wb_workfn (flush-8:0) [ 57.052518][ T211] Call Trace: [ 57.055791][ T211] dump_stack+0x188/0x20d [ 57.060107][ T211] debug_smp_processor_id.cold+0x88/0x9b [ 57.065777][ T211] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.070872][ T211] ? __kmalloc+0x62f/0x7a0 [ 57.075342][ T211] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.080930][ T211] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.086656][ T211] ext4_ext_map_blocks+0x2044/0x3410 [ 57.091937][ T211] ? ext4_ext_release+0x10/0x10 [ 57.096872][ T211] ? __down_timeout+0x2d0/0x2d0 [ 57.101698][ T211] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.107144][ T211] ? debug_smp_processor_id+0x2f/0x185 [ 57.112604][ T211] ext4_map_blocks+0x4cb/0x1640 [ 57.117452][ T211] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.122807][ T211] ? debug_smp_processor_id+0x2f/0x185 [ 57.128856][ T211] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.134471][ T211] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.140435][ T211] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.145892][ T211] ext4_writepages+0x1ab7/0x3400 [ 57.150826][ T211] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.156435][ T211] ? __lock_acquire+0x2224/0x48a0 [ 57.161467][ T211] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.167428][ T211] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.173399][ T211] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.179007][ T211] ? do_writepages+0xfa/0x2a0 [ 57.183660][ T211] do_writepages+0xfa/0x2a0 [ 57.188163][ T211] ? page_writeback_cpu_online+0x10/0x10 [ 57.193788][ T211] ? debug_smp_processor_id+0x2f/0x185 [ 57.199374][ T211] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.204924][ T211] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.211070][ T211] ? lock_downgrade+0x840/0x840 [ 57.216521][ T211] __writeback_single_inode+0x12a/0x1410 [ 57.222147][ T211] ? _raw_spin_unlock+0x24/0x40 [ 57.226997][ T211] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.233164][ T211] writeback_sb_inodes+0x515/0xdd0 [ 57.238271][ T211] ? __writeback_single_inode+0x1410/0x1410 [ 57.244172][ T211] __writeback_inodes_wb+0xc3/0x250 [ 57.249367][ T211] wb_writeback+0x910/0xd90 [ 57.253854][ T211] ? print_usage_bug+0x240/0x240 [ 57.258790][ T211] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.265105][ T211] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.270986][ T211] ? cpumask_next+0x3c/0x40 [ 57.275477][ T211] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.280660][ T211] wb_workfn+0xadf/0x10d0 [ 57.284984][ T211] ? inode_wait_for_writeback+0x30/0x30 [ 57.290512][ T211] ? debug_smp_processor_id+0x2f/0x185 [ 57.295956][ T211] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.301476][ T211] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.307438][ T211] process_one_work+0x965/0x16a0 [ 57.312381][ T211] ? lock_release+0x800/0x800 [ 57.317052][ T211] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.322421][ T211] ? rwlock_bug.part.0+0x90/0x90 [ 57.327344][ T211] worker_thread+0x96/0xe10 [ 57.331841][ T211] ? process_one_work+0x16a0/0x16a0 [ 57.337015][ T211] kthread+0x388/0x470 [ 57.341074][ T211] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.346768][ T211] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.352465][ T211] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts. 2020/06/11 05:29:07 fuzzer started 2020/06/11 05:29:07 connecting to host at 10.128.0.26:42201 2020/06/11 05:29:07 checking machine... 2020/06/11 05:29:07 checking revisions... 2020/06/11 05:29:07 testing simple program... [ 59.104658][ T6792] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6792 [ 59.113909][ T6792] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.119787][ T6792] CPU: 1 PID: 6792 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.128097][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.138135][ T6792] Call Trace: [ 59.141468][ T6792] dump_stack+0x188/0x20d [ 59.145888][ T6792] debug_smp_processor_id.cold+0x88/0x9b [ 59.151507][ T6792] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.156605][ T6792] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.162044][ T6792] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.167770][ T6792] ext4_ext_map_blocks+0x2044/0x3410 [ 59.173036][ T6792] ? ext4_ext_release+0x10/0x10 [ 59.177893][ T6792] ? __down_timeout+0x2d0/0x2d0 [ 59.182730][ T6792] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.188186][ T6792] ext4_map_blocks+0x4cb/0x1640 [ 59.193037][ T6792] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.198211][ T6792] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.203730][ T6792] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.209869][ T6792] ? prandom_u32_state+0xe/0x170 [ 59.214795][ T6792] ? __brelse+0x84/0xa0 [ 59.218933][ T6792] ? __ext4_new_inode+0x144/0x57c0 [ 59.224021][ T6792] ext4_getblk+0xad/0x520 [ 59.228327][ T6792] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.234025][ T6792] ? ext4_free_inode+0x17e0/0x17e0 [ 59.239115][ T6792] ext4_bread+0x7c/0x380 [ 59.243414][ T6792] ? ext4_getblk+0x520/0x520 [ 59.248000][ T6792] ? dqget+0xff0/0xff0 [ 59.252063][ T6792] ext4_append+0x153/0x360 [ 59.256471][ T6792] ext4_mkdir+0x5e0/0xdf0 [ 59.260801][ T6792] ? ext4_rmdir+0xde0/0xde0 [ 59.265313][ T6792] ? security_inode_permission+0xc4/0xf0 [ 59.270929][ T6792] vfs_mkdir+0x419/0x690 [ 59.275173][ T6792] do_mkdirat+0x21e/0x280 [ 59.279484][ T6792] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.284321][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.290291][ T6792] ? do_syscall_64+0x21/0x7d0 [ 59.294962][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.300930][ T6792] do_syscall_64+0xf6/0x7d0 [ 59.305440][ T6792] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.312020][ T6792] RIP: 0033:0x4b02a0 [ 59.315901][ T6792] 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 [ 59.336027][ T6792] RSP: 002b:000000c0003cf4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.344432][ T6792] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.352554][ T6792] RDX: 00000000000001c0 RSI: 000000c00009eb60 RDI: ffffffffffffff9c [ 59.360513][ T6792] RBP: 000000c0003cf510 R08: 0000000000000000 R09: 0000000000000000 [ 59.368463][ T6792] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.376424][ T6792] R13: 000000000000005c R14: 000000000000005b R15: 0000000000000100 [ 59.402870][ T6796] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6796 [ 59.412692][ T6796] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.418567][ T6796] CPU: 0 PID: 6796 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.426778][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.436832][ T6796] Call Trace: [ 59.440114][ T6796] dump_stack+0x188/0x20d [ 59.444438][ T6796] debug_smp_processor_id.cold+0x88/0x9b [ 59.450069][ T6796] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.455173][ T6796] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.460964][ T6796] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.466672][ T6796] ext4_ext_map_blocks+0x2044/0x3410 [ 59.471975][ T6796] ? ext4_ext_release+0x10/0x10 [ 59.476856][ T6796] ? __down_timeout+0x2d0/0x2d0 [ 59.481703][ T6796] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.487254][ T6796] ext4_map_blocks+0x4cb/0x1640 [ 59.492099][ T6796] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.497291][ T6796] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.502836][ T6796] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.508809][ T6796] ? prandom_u32_state+0xe/0x170 [ 59.513759][ T6796] ? __brelse+0x84/0xa0 [ 59.517919][ T6796] ? __ext4_new_inode+0x144/0x57c0 [ 59.523033][ T6796] ext4_getblk+0xad/0x520 [ 59.527363][ T6796] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.533075][ T6796] ? ext4_free_inode+0x17e0/0x17e0 [ 59.538183][ T6796] ext4_bread+0x7c/0x380 [ 59.542406][ T6796] ? ext4_getblk+0x520/0x520 [ 59.546983][ T6796] ? dqget+0xff0/0xff0 [ 59.551045][ T6796] ext4_append+0x153/0x360 [ 59.555455][ T6796] ext4_mkdir+0x5e0/0xdf0 [ 59.559769][ T6796] ? ext4_rmdir+0xde0/0xde0 [ 59.564694][ T6796] ? security_inode_permission+0xc4/0xf0 [ 59.570915][ T6796] vfs_mkdir+0x419/0x690 [ 59.575142][ T6796] do_mkdirat+0x21e/0x280 [ 59.579463][ T6796] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.584297][ T6796] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.590256][ T6796] ? do_syscall_64+0x21/0x7d0 [ 59.594913][ T6796] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.600881][ T6796] do_syscall_64+0xf6/0x7d0 [ 59.605370][ T6796] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.611253][ T6796] RIP: 0033:0x45bee7 [ 59.615142][ T6796] 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 [ 59.634908][ T6796] RSP: 002b:00007ffeb80ebae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.643305][ T6796] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.651316][ T6796] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffeb80ebcc0 [ 59.659469][ T6796] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003600 [ 59.667525][ T6796] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.675539][ T6796] R13: 00007ffeb80ebcc0 R14: 8421084210842109 R15: 00007ffeb80ebccc [ 59.761412][ T6797] IPVS: ftp: loaded support on port[0] = 21 [ 59.797691][ T6797] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6797 [ 59.807175][ T6797] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.813375][ T6797] CPU: 1 PID: 6797 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.821606][ T6797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.831909][ T6797] Call Trace: [ 59.835204][ T6797] dump_stack+0x188/0x20d [ 59.839513][ T6797] debug_smp_processor_id.cold+0x88/0x9b [ 59.845137][ T6797] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.850242][ T6797] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.855693][ T6797] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.861407][ T6797] ext4_ext_map_blocks+0x2044/0x3410 [ 59.866738][ T6797] ? ext4_ext_release+0x10/0x10 [ 59.871615][ T6797] ? __down_timeout+0x2d0/0x2d0 [ 59.876466][ T6797] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.881937][ T6797] ext4_map_blocks+0x4cb/0x1640 [ 59.886804][ T6797] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.892000][ T6797] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.897540][ T6797] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.903497][ T6797] ? prandom_u32_state+0xe/0x170 [ 59.908412][ T6797] ? __brelse+0x84/0xa0 [ 59.912545][ T6797] ? __ext4_new_inode+0x144/0x57c0 [ 59.919120][ T6797] ext4_getblk+0xad/0x520 [ 59.923448][ T6797] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.929148][ T6797] ? ext4_free_inode+0x17e0/0x17e0 [ 59.934248][ T6797] ext4_bread+0x7c/0x380 [ 59.938495][ T6797] ? ext4_getblk+0x520/0x520 [ 59.943063][ T6797] ? dqget+0xff0/0xff0 [ 59.947111][ T6797] ext4_append+0x153/0x360 [ 59.951507][ T6797] ext4_mkdir+0x5e0/0xdf0 [ 59.955820][ T6797] ? ext4_rmdir+0xde0/0xde0 [ 59.960332][ T6797] ? security_inode_permission+0xc4/0xf0 [ 59.965944][ T6797] vfs_mkdir+0x419/0x690 [ 59.970175][ T6797] do_mkdirat+0x21e/0x280 [ 59.974508][ T6797] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.979347][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.985315][ T6797] ? do_syscall_64+0x21/0x7d0 [ 59.989967][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.995935][ T6797] do_syscall_64+0xf6/0x7d0 [ 60.000418][ T6797] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.006293][ T6797] RIP: 0033:0x45bee7 [ 60.010173][ T6797] 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 [ 60.029763][ T6797] RSP: 002b:00007ffeb80eb9d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.038161][ T6797] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.046124][ T6797] RDX: 00007ffeb80eba23 RSI: 00000000000001ff RDI: 00007ffeb80eba20 [ 60.054071][ T6797] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.062031][ T6797] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 60.069980][ T6797] R13: 00007ffeb80eba10 R14: 0000000000000000 R15: 00007ffeb80eba20 [ 60.119837][ T6797] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6797 [ 60.129458][ T6797] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.135432][ T6797] CPU: 0 PID: 6797 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.143667][ T6797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.153724][ T6797] Call Trace: [ 60.157023][ T6797] dump_stack+0x188/0x20d [ 60.161366][ T6797] debug_smp_processor_id.cold+0x88/0x9b [ 60.167003][ T6797] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.172131][ T6797] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.177600][ T6797] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.183366][ T6797] ext4_ext_map_blocks+0x2044/0x3410 [ 60.188745][ T6797] ? ext4_ext_release+0x10/0x10 [ 60.193655][ T6797] ? __down_timeout+0x2d0/0x2d0 [ 60.198492][ T6797] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.204568][ T6797] ext4_map_blocks+0x4cb/0x1640 [ 60.209413][ T6797] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.214590][ T6797] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.220176][ T6797] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.226152][ T6797] ? prandom_u32_state+0xe/0x170 [ 60.231109][ T6797] ? __brelse+0x84/0xa0 [ 60.235274][ T6797] ? __ext4_new_inode+0x144/0x57c0 [ 60.240389][ T6797] ext4_getblk+0xad/0x520 [ 60.244740][ T6797] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.250560][ T6797] ? ext4_free_inode+0x17e0/0x17e0 [ 60.255671][ T6797] ext4_bread+0x7c/0x380 [ 60.259899][ T6797] ? ext4_getblk+0x520/0x520 [ 60.264485][ T6797] ? dqget+0xff0/0xff0 [ 60.268540][ T6797] ext4_append+0x153/0x360 [ 60.272951][ T6797] ext4_mkdir+0x5e0/0xdf0 [ 60.277366][ T6797] ? ext4_rmdir+0xde0/0xde0 [ 60.281874][ T6797] ? security_inode_permission+0xc4/0xf0 [ 60.287506][ T6797] vfs_mkdir+0x419/0x690 [ 60.291735][ T6797] do_mkdirat+0x21e/0x280 [ 60.296062][ T6797] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.301332][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.307351][ T6797] ? do_syscall_64+0x21/0x7d0 [ 60.312035][ T6797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.318004][ T6797] do_syscall_64+0xf6/0x7d0 [ 60.322495][ T6797] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.328366][ T6797] RIP: 0033:0x45bee7 [ 60.332251][ T6797] 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 [ 60.351856][ T6797] RSP: 002b:00007ffeb80eb9d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.360263][ T6797] RAX: ffffffffffffffda RBX: 000000000000eaca RCX: 000000000045bee7 2020/06/11 05:29:08 building call list... [ 60.368224][ T6797] RDX: 00007ffeb80eba23 RSI: 00000000000001ff RDI: 00007ffeb80eba20 [ 60.376176][ T6797] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.384125][ T6797] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 60.392092][ T6797] R13: 00007ffeb80eba10 R14: 000000000000eac4 R15: 00007ffeb80eba20 [ 60.721933][ T21] tipc: TX() has been purged, node left! executing program [ 62.074433][ T6792] can: request_module (can-proto-0) failed. [ 62.305200][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 62.314413][ T1157] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.320307][ T1157] CPU: 0 PID: 1157 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.328386][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.338437][ T1157] Call Trace: [ 62.341718][ T1157] dump_stack+0x188/0x20d [ 62.346038][ T1157] debug_smp_processor_id.cold+0x88/0x9b [ 62.351664][ T1157] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.356756][ T1157] ? __kmalloc+0x62f/0x7a0 [ 62.361164][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.366626][ T1157] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.372335][ T1157] ext4_ext_map_blocks+0x2044/0x3410 [ 62.377608][ T1157] ? ext4_ext_release+0x10/0x10 [ 62.382456][ T1157] ? __down_timeout+0x2d0/0x2d0 [ 62.387296][ T1157] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.392736][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 62.397599][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.402779][ T1157] ? debug_smp_processor_id+0x2f/0x185 [ 62.408223][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.413748][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.419720][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.425192][ T1157] ext4_writepages+0x1ab7/0x3400 [ 62.430128][ T1157] ? mark_lock+0x30/0xdd0 [ 62.434476][ T1157] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.440136][ T1157] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.445760][ T1157] ? do_writepages+0xfa/0x2a0 [ 62.450440][ T1157] do_writepages+0xfa/0x2a0 [ 62.454931][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 62.460563][ T1157] ? do_raw_spin_lock+0x129/0x2e0 [ 62.465573][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 62.470762][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 62.475653][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.481385][ T1157] ? collapse_file+0x3575/0x4300 [ 62.486541][ T1157] ? delete_from_page_cache_batch+0xec0/0xec0 [ 62.492613][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.497902][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.503887][ T1157] collapse_file+0x357f/0x4300 [ 62.508660][ T1157] ? collapse_huge_page+0x4370/0x4370 [ 62.514240][ T1157] ? khugepaged+0x24fa/0x3f80 [ 62.518919][ T1157] khugepaged+0x3049/0x3f80 [ 62.523427][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.529043][ T1157] ? lock_downgrade+0x840/0x840 [ 62.533893][ T1157] ? finish_wait+0x260/0x260 [ 62.538487][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.544307][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.550308][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 62.555328][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.560961][ T1157] kthread+0x388/0x470 [ 62.565372][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.571102][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.576813][ T1157] ret_from_fork+0x24/0x30 [ 62.638429][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 62.647866][ T1157] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.653867][ T1157] CPU: 0 PID: 1157 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.661778][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.672029][ T1157] Call Trace: [ 62.675319][ T1157] dump_stack+0x188/0x20d [ 62.679638][ T1157] debug_smp_processor_id.cold+0x88/0x9b [ 62.685281][ T1157] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.690392][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.695890][ T1157] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.703060][ T1157] ext4_ext_map_blocks+0x2044/0x3410 [ 62.708511][ T1157] ? ext4_ext_release+0x10/0x10 [ 62.713489][ T1157] ? __down_timeout+0x2d0/0x2d0 [ 62.718387][ T1157] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.724569][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 62.729415][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.734616][ T1157] ? debug_smp_processor_id+0x2f/0x185 [ 62.740231][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.745793][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.752090][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.757568][ T1157] ext4_writepages+0x1ab7/0x3400 [ 62.762507][ T1157] ? mark_lock+0x30/0xdd0 [ 62.766847][ T1157] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.772503][ T1157] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.778153][ T1157] ? do_writepages+0xfa/0x2a0 [ 62.782821][ T1157] do_writepages+0xfa/0x2a0 [ 62.787659][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 62.793296][ T1157] ? do_raw_spin_lock+0x129/0x2e0 [ 62.798300][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 62.803498][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 62.808346][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.814049][ T1157] ? collapse_file+0x3575/0x4300 [ 62.818995][ T1157] ? delete_from_page_cache_batch+0xec0/0xec0 [ 62.825090][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.830502][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.836483][ T1157] collapse_file+0x357f/0x4300 [ 62.841257][ T1157] ? collapse_huge_page+0x4370/0x4370 [ 62.846735][ T1157] ? khugepaged+0x24fa/0x3f80 [ 62.851425][ T1157] khugepaged+0x3049/0x3f80 [ 62.855937][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.861701][ T1157] ? lock_downgrade+0x840/0x840 [ 62.866542][ T1157] ? finish_wait+0x260/0x260 [ 62.871137][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.876951][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.882955][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 62.888079][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.894415][ T1157] kthread+0x388/0x470 [ 62.898476][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.904181][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.909981][ T1157] ret_from_fork+0x24/0x30 [ 62.956880][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 62.966020][ T1157] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.972003][ T1157] CPU: 0 PID: 1157 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.980004][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.990190][ T1157] Call Trace: [ 62.993491][ T1157] dump_stack+0x188/0x20d [ 62.997829][ T1157] debug_smp_processor_id.cold+0x88/0x9b [ 63.003459][ T1157] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.009106][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.014567][ T1157] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.020730][ T1157] ext4_ext_map_blocks+0x2044/0x3410 [ 63.026112][ T1157] ? ext4_ext_release+0x10/0x10 [ 63.031680][ T1157] ? __down_timeout+0x2d0/0x2d0 [ 63.036643][ T1157] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.042457][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 63.047311][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.052503][ T1157] ? debug_smp_processor_id+0x2f/0x185 [ 63.057963][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.063506][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.069486][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.075056][ T1157] ext4_writepages+0x1ab7/0x3400 [ 63.080074][ T1157] ? mark_lock+0x30/0xdd0 [ 63.084474][ T1157] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.090860][ T1157] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.096523][ T1157] ? do_writepages+0xfa/0x2a0 [ 63.101332][ T1157] do_writepages+0xfa/0x2a0 [ 63.105879][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 63.111528][ T1157] ? do_raw_spin_lock+0x129/0x2e0 [ 63.116851][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 63.122050][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 63.126897][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.132613][ T1157] ? collapse_file+0x3575/0x4300 [ 63.137539][ T1157] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.143599][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.149138][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.155214][ T1157] collapse_file+0x357f/0x4300 [ 63.159975][ T1157] ? collapse_huge_page+0x4370/0x4370 [ 63.165452][ T1157] ? khugepaged+0x24fa/0x3f80 [ 63.170246][ T1157] khugepaged+0x3049/0x3f80 [ 63.174761][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.180467][ T1157] ? lock_downgrade+0x840/0x840 [ 63.185314][ T1157] ? finish_wait+0x260/0x260 [ 63.189901][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.195798][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.201781][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 63.206789][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.212539][ T1157] kthread+0x388/0x470 [ 63.216608][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.222307][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.228022][ T1157] ret_from_fork+0x24/0x30 [ 63.446612][ T6792] can: request_module (can-proto-0) failed. [ 63.458406][ T6792] can: request_module (can-proto-0) failed.