[ 51.748357][ T6726] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 51.754243][ T6726] RIP: 0033:0x7fed122c1687 [ 51.758653][ T6726] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 [ 51.778244][ T6726] RSP: 002b:00007ffd3d6e0008 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 51.787949][ T6726] RAX: ffffffffffffffda RBX: 000055c217652985 RCX: 00007fed122c1687 [ 51.795913][ T6726] RDX: 00007ffd3d6dfed0 RSI: 00000000000001ed RDI: 000055c217652985 [ 51.803861][ T6726] RBP: 00007fed122c1680 R08: 0000000000000100 R09: 0000000000000000 [ 51.811827][ T6726] R10: 000055c217652980 R11: 0000000000000246 R12: 00000000000001ed [ 51.819791][ T6726] R13: 00007ffd3d6e0190 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 55.370796][ T6754] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:8/6754 [ 55.380459][ T6754] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 55.386338][ T6754] CPU: 1 PID: 6754 Comm: kworker/u4:8 Not tainted 5.7.0-syzkaller #0 [ 55.395330][ T6754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.406336][ T6754] Workqueue: writeback wb_workfn (flush-8:0) [ 55.412291][ T6754] Call Trace: [ 55.415558][ T6754] dump_stack+0x188/0x20d [ 55.419869][ T6754] debug_smp_processor_id.cold+0x88/0x9b [ 55.425484][ T6754] ext4_mb_new_blocks+0xa77/0x3b30 [ 55.430572][ T6754] ? __kmalloc+0x62f/0x7a0 [ 55.434987][ T6754] ? ext4_ext_search_right+0x2ca/0xb20 [ 55.440440][ T6754] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 55.446139][ T6754] ext4_ext_map_blocks+0x2044/0x3410 [ 55.451403][ T6754] ? ext4_ext_release+0x10/0x10 [ 55.456239][ T6754] ? __down_timeout+0x2d0/0x2d0 [ 55.461075][ T6754] ? ext4_es_lookup_extent+0x41d/0xd30 [ 55.466522][ T6754] ? debug_smp_processor_id+0x2f/0x185 [ 55.471975][ T6754] ext4_map_blocks+0x4cb/0x1640 [ 55.476804][ T6754] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 55.481990][ T6754] ? debug_smp_processor_id+0x2f/0x185 [ 55.487443][ T6754] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.492979][ T6754] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.498933][ T6754] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 55.504388][ T6754] ext4_writepages+0x1ab7/0x3400 [ 55.509315][ T6754] ? __ext4_mark_inode_dirty+0x950/0x950 [ 55.514937][ T6754] ? __lock_acquire+0x2224/0x48a0 [ 55.519947][ T6754] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 55.525909][ T6754] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 55.531880][ T6754] ? __ext4_mark_inode_dirty+0x950/0x950 [ 55.537504][ T6754] ? do_writepages+0xfa/0x2a0 [ 55.542173][ T6754] do_writepages+0xfa/0x2a0 [ 55.546656][ T6754] ? page_writeback_cpu_online+0x10/0x10 [ 55.552785][ T6754] ? debug_smp_processor_id+0x2f/0x185 [ 55.558223][ T6754] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.563748][ T6754] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.569702][ T6754] ? lock_downgrade+0x840/0x840 [ 55.574546][ T6754] __writeback_single_inode+0x12a/0x1410 [ 55.580161][ T6754] ? _raw_spin_unlock+0x24/0x40 [ 55.585009][ T6754] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 55.590980][ T6754] writeback_sb_inodes+0x515/0xdd0 [ 55.596087][ T6754] ? __writeback_single_inode+0x1410/0x1410 [ 55.601975][ T6754] __writeback_inodes_wb+0xc3/0x250 [ 55.607153][ T6754] wb_writeback+0x910/0xd90 [ 55.611635][ T6754] ? print_usage_bug+0x240/0x240 [ 55.616566][ T6754] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 55.622869][ T6754] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 55.628742][ T6754] ? cpumask_next+0x3c/0x40 [ 55.633221][ T6754] ? get_nr_dirty_inodes+0xd6/0x130 [ 55.638420][ T6754] wb_workfn+0xadf/0x10d0 [ 55.642736][ T6754] ? inode_wait_for_writeback+0x30/0x30 [ 55.648271][ T6754] ? debug_smp_processor_id+0x2f/0x185 [ 55.653795][ T6754] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.659322][ T6754] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.665281][ T6754] process_one_work+0x965/0x16a0 [ 55.670200][ T6754] ? lock_release+0x800/0x800 [ 55.674860][ T6754] ? pwq_dec_nr_in_flight+0x310/0x310 [ 55.680233][ T6754] ? rwlock_bug.part.0+0x90/0x90 [ 55.685174][ T6754] worker_thread+0x96/0xe10 [ 55.689661][ T6754] ? process_one_work+0x16a0/0x16a0 [ 55.695112][ T6754] kthread+0x388/0x470 [ 55.699171][ T6754] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 55.704864][ T6754] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 55.711356][ T6754] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.183' (ECDSA) to the list of known hosts. 2020/06/12 15:55:15 fuzzer started 2020/06/12 15:55:15 connecting to host at 10.128.0.26:44259 2020/06/12 15:55:15 checking machine... 2020/06/12 15:55:15 checking revisions... 2020/06/12 15:55:15 testing simple program... [ 57.715329][ T6785] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6785 [ 57.724528][ T6785] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.730732][ T6785] CPU: 0 PID: 6785 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 57.738710][ T6785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.748747][ T6785] Call Trace: [ 57.752034][ T6785] dump_stack+0x188/0x20d [ 57.756356][ T6785] debug_smp_processor_id.cold+0x88/0x9b [ 57.761983][ T6785] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.767091][ T6785] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.772543][ T6785] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.778527][ T6785] ext4_ext_map_blocks+0x2044/0x3410 [ 57.783812][ T6785] ? ext4_ext_release+0x10/0x10 [ 57.788997][ T6785] ? __down_timeout+0x2d0/0x2d0 [ 57.793824][ T6785] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.799260][ T6785] ext4_map_blocks+0x4cb/0x1640 [ 57.804108][ T6785] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.809280][ T6785] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.814816][ T6785] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.820774][ T6785] ? prandom_u32_state+0xe/0x170 [ 57.825697][ T6785] ? __brelse+0x84/0xa0 [ 57.829863][ T6785] ? __ext4_new_inode+0x144/0x57c0 [ 57.834954][ T6785] ext4_getblk+0xad/0x520 [ 57.839277][ T6785] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 57.844990][ T6785] ? ext4_free_inode+0x17e0/0x17e0 [ 57.850109][ T6785] ext4_bread+0x7c/0x380 [ 57.854329][ T6785] ? ext4_getblk+0x520/0x520 [ 57.858898][ T6785] ? dqget+0xff0/0xff0 [ 57.862950][ T6785] ext4_append+0x153/0x360 [ 57.867358][ T6785] ext4_mkdir+0x5e0/0xdf0 [ 57.871683][ T6785] ? ext4_rmdir+0xde0/0xde0 [ 57.876166][ T6785] ? security_inode_permission+0xc4/0xf0 [ 57.881790][ T6785] vfs_mkdir+0x419/0x690 [ 57.886034][ T6785] do_mkdirat+0x21e/0x280 [ 57.890348][ T6785] ? __ia32_sys_mknod+0xb0/0xb0 [ 57.895310][ T6785] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 57.901270][ T6785] ? do_syscall_64+0x21/0x7d0 [ 57.905923][ T6785] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 57.911969][ T6785] do_syscall_64+0xf6/0x7d0 [ 57.916467][ T6785] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 57.922343][ T6785] RIP: 0033:0x4b02a0 [ 57.926214][ T6785] 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 [ 57.945893][ T6785] RSP: 002b:000000c0001214b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 57.954294][ T6785] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 57.963205][ T6785] RDX: 00000000000001c0 RSI: 000000c0002d8920 RDI: ffffffffffffff9c [ 57.971154][ T6785] RBP: 000000c000121510 R08: 0000000000000000 R09: 0000000000000000 [ 57.979195][ T6785] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 57.987162][ T6785] R13: 000000000000004a R14: 0000000000000049 R15: 0000000000000100 [ 58.019068][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6801 [ 58.028757][ T6801] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.034801][ T6801] CPU: 1 PID: 6801 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.043052][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.053106][ T6801] Call Trace: [ 58.056541][ T6801] dump_stack+0x188/0x20d [ 58.060873][ T6801] debug_smp_processor_id.cold+0x88/0x9b [ 58.066492][ T6801] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.071617][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.077079][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.082781][ T6801] ext4_ext_map_blocks+0x2044/0x3410 [ 58.088047][ T6801] ? ext4_ext_release+0x10/0x10 [ 58.092885][ T6801] ? __down_timeout+0x2d0/0x2d0 [ 58.097711][ T6801] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.103265][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 58.108098][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.113278][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.118814][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.124791][ T6801] ? prandom_u32_state+0xe/0x170 [ 58.129710][ T6801] ? __brelse+0x84/0xa0 [ 58.133915][ T6801] ? __ext4_new_inode+0x144/0x57c0 [ 58.139012][ T6801] ext4_getblk+0xad/0x520 [ 58.143498][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.149653][ T6801] ? ext4_free_inode+0x17e0/0x17e0 [ 58.154879][ T6801] ext4_bread+0x7c/0x380 [ 58.159219][ T6801] ? ext4_getblk+0x520/0x520 [ 58.163827][ T6801] ? dqget+0xff0/0xff0 [ 58.167901][ T6801] ext4_append+0x153/0x360 [ 58.172321][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 58.176656][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 58.181245][ T6801] ? security_inode_permission+0xc4/0xf0 [ 58.186895][ T6801] vfs_mkdir+0x419/0x690 [ 58.191148][ T6801] do_mkdirat+0x21e/0x280 [ 58.195584][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.200747][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.207330][ T6801] ? do_syscall_64+0x21/0x7d0 [ 58.212006][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.218028][ T6801] do_syscall_64+0xf6/0x7d0 [ 58.222525][ T6801] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.228398][ T6801] RIP: 0033:0x45bee7 [ 58.232273][ T6801] 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 [ 58.251955][ T6801] RSP: 002b:00007ffecd58b048 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.260342][ T6801] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.268300][ T6801] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffecd58b220 [ 58.277123][ T6801] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002bc0 [ 58.285099][ T6801] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.293048][ T6801] R13: 00007ffecd58b220 R14: 8421084210842109 R15: 00007ffecd58b22c [ 58.372905][ T6802] IPVS: ftp: loaded support on port[0] = 21 [ 58.408508][ T6802] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6802 [ 58.418207][ T6802] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.424180][ T6802] CPU: 0 PID: 6802 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.432405][ T6802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.442434][ T6802] Call Trace: [ 58.445742][ T6802] dump_stack+0x188/0x20d [ 58.450073][ T6802] debug_smp_processor_id.cold+0x88/0x9b [ 58.455680][ T6802] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.460783][ T6802] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.466227][ T6802] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.471922][ T6802] ext4_ext_map_blocks+0x2044/0x3410 [ 58.477273][ T6802] ? ext4_ext_release+0x10/0x10 [ 58.482115][ T6802] ? __down_timeout+0x2d0/0x2d0 [ 58.486939][ T6802] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.492375][ T6802] ext4_map_blocks+0x4cb/0x1640 [ 58.497213][ T6802] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.502384][ T6802] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.508149][ T6802] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.514102][ T6802] ? prandom_u32_state+0xe/0x170 [ 58.519014][ T6802] ? __brelse+0x84/0xa0 [ 58.523145][ T6802] ? __ext4_new_inode+0x144/0x57c0 [ 58.528241][ T6802] ext4_getblk+0xad/0x520 [ 58.532545][ T6802] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.538242][ T6802] ? ext4_free_inode+0x17e0/0x17e0 [ 58.543341][ T6802] ext4_bread+0x7c/0x380 [ 58.547566][ T6802] ? ext4_getblk+0x520/0x520 [ 58.552130][ T6802] ? dqget+0xff0/0xff0 [ 58.556176][ T6802] ext4_append+0x153/0x360 [ 58.560569][ T6802] ext4_mkdir+0x5e0/0xdf0 [ 58.564919][ T6802] ? ext4_rmdir+0xde0/0xde0 [ 58.569408][ T6802] ? security_inode_permission+0xc4/0xf0 [ 58.575024][ T6802] vfs_mkdir+0x419/0x690 [ 58.579270][ T6802] do_mkdirat+0x21e/0x280 [ 58.583598][ T6802] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.588425][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.594382][ T6802] ? do_syscall_64+0x21/0x7d0 [ 58.599032][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.604987][ T6802] do_syscall_64+0xf6/0x7d0 [ 58.611986][ T6802] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.617850][ T6802] RIP: 0033:0x45bee7 [ 58.621720][ T6802] 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 [ 58.641314][ T6802] RSP: 002b:00007ffecd58af38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 58.649698][ T6802] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 58.657643][ T6802] RDX: 00007ffecd58af83 RSI: 00000000000001ff RDI: 00007ffecd58af80 [ 58.665586][ T6802] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 58.673531][ T6802] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 58.681487][ T6802] R13: 00007ffecd58af70 R14: 0000000000000000 R15: 00007ffecd58af80 [ 58.728261][ T6802] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6802 [ 58.738052][ T6802] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.744040][ T6802] CPU: 1 PID: 6802 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.752268][ T6802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.762340][ T6802] Call Trace: [ 58.765630][ T6802] dump_stack+0x188/0x20d [ 58.772573][ T6802] debug_smp_processor_id.cold+0x88/0x9b [ 58.778208][ T6802] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.783329][ T6802] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.788781][ T6802] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.794499][ T6802] ext4_ext_map_blocks+0x2044/0x3410 [ 58.799792][ T6802] ? ext4_ext_release+0x10/0x10 [ 58.804660][ T6802] ? __down_timeout+0x2d0/0x2d0 [ 58.809509][ T6802] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.814952][ T6802] ext4_map_blocks+0x4cb/0x1640 [ 58.819796][ T6802] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.824993][ T6802] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.830518][ T6802] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.836473][ T6802] ? prandom_u32_state+0xe/0x170 [ 58.841393][ T6802] ? __brelse+0x84/0xa0 [ 58.845524][ T6802] ? __ext4_new_inode+0x144/0x57c0 [ 58.850620][ T6802] ext4_getblk+0xad/0x520 [ 58.854938][ T6802] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.860650][ T6802] ? ext4_free_inode+0x17e0/0x17e0 [ 58.865736][ T6802] ext4_bread+0x7c/0x380 [ 58.869955][ T6802] ? ext4_getblk+0x520/0x520 [ 58.874536][ T6802] ? dqget+0xff0/0xff0 [ 58.878604][ T6802] ext4_append+0x153/0x360 [ 58.883006][ T6802] ext4_mkdir+0x5e0/0xdf0 [ 58.887332][ T6802] ? ext4_rmdir+0xde0/0xde0 [ 58.891834][ T6802] ? security_inode_permission+0xc4/0xf0 [ 58.897451][ T6802] vfs_mkdir+0x419/0x690 [ 58.901681][ T6802] do_mkdirat+0x21e/0x280 [ 58.905991][ T6802] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.910820][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.916779][ T6802] ? do_syscall_64+0x21/0x7d0 [ 58.921446][ T6802] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.927426][ T6802] do_syscall_64+0xf6/0x7d0 [ 58.931910][ T6802] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.937774][ T6802] RIP: 0033:0x45bee7 [ 58.941645][ T6802] 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 [ 58.961752][ T6802] RSP: 002b:00007ffecd58af38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 58.970226][ T6802] RAX: ffffffffffffffda RBX: 000000000000e569 RCX: 000000000045bee7 2020/06/12 15:55:17 building call list... [ 58.978173][ T6802] RDX: 00007ffecd58af83 RSI: 00000000000001ff RDI: 00007ffecd58af80 [ 58.986129][ T6802] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 58.994078][ T6802] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.002035][ T6802] R13: 00007ffecd58af70 R14: 000000000000e55a R15: 00007ffecd58af80 [ 59.289480][ T645] tipc: TX() has been purged, node left! [ 59.534782][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 59.544033][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.550055][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.557929][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.567993][ T1155] Call Trace: [ 59.571286][ T1155] dump_stack+0x188/0x20d [ 59.575618][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 59.581247][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.586348][ T1155] ? __kmalloc+0x62f/0x7a0 [ 59.590769][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.596219][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.601938][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 59.607224][ T1155] ? ext4_ext_release+0x10/0x10 [ 59.612084][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 59.616929][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.622389][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 59.627239][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.632430][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 59.637886][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.643424][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.649394][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.654857][ T1155] ext4_writepages+0x1ab7/0x3400 [ 59.659791][ T1155] ? mark_lock+0x30/0xdd0 [ 59.664128][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.669784][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.675410][ T1155] ? do_writepages+0xfa/0x2a0 [ 59.680078][ T1155] do_writepages+0xfa/0x2a0 [ 59.684584][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 59.690236][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 59.695254][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 59.700445][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 59.705292][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.711010][ T1155] ? collapse_file+0x3575/0x4300 [ 59.715939][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.722009][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.727202][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.733196][ T1155] collapse_file+0x357f/0x4300 [ 59.738951][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 59.747098][ T1155] ? khugepaged+0x24fa/0x3f80 [ 59.751791][ T1155] khugepaged+0x3049/0x3f80 [ 59.756315][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.761939][ T1155] ? lock_downgrade+0x840/0x840 [ 59.766796][ T1155] ? finish_wait+0x260/0x260 [ 59.771382][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.777182][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.783175][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 59.788193][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.793848][ T1155] kthread+0x388/0x470 [ 59.797911][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.803621][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.809337][ T1155] ret_from_fork+0x24/0x30 [ 59.971887][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 59.981060][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.986974][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.994855][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.004907][ T1155] Call Trace: [ 60.008207][ T1155] dump_stack+0x188/0x20d [ 60.012555][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.018199][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.023312][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.028770][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.034917][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.040202][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.045063][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.049913][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.055395][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.060244][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.065432][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.070895][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.076436][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.082408][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.087861][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.092793][ T1155] ? mark_lock+0x30/0xdd0 [ 60.097129][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.102871][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.108501][ T1155] ? do_writepages+0xfa/0x2a0 [ 60.113175][ T1155] do_writepages+0xfa/0x2a0 [ 60.117674][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 60.123301][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 60.128318][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 60.134297][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 60.139146][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.144870][ T1155] ? collapse_file+0x3575/0x4300 [ 60.149801][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.155870][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.161064][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.167046][ T1155] collapse_file+0x357f/0x4300 [ 60.171821][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 60.177186][ T1155] ? khugepaged+0x24fa/0x3f80 [ 60.181874][ T1155] khugepaged+0x3049/0x3f80 [ 60.186418][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.192048][ T1155] ? lock_downgrade+0x840/0x840 [ 60.196893][ T1155] ? finish_wait+0x260/0x260 [ 60.201482][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.207279][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.213255][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 60.218273][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.223898][ T1155] kthread+0x388/0x470 [ 60.227960][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.233669][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.239386][ T1155] ret_from_fork+0x24/0x30 [ 60.349107][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.358248][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.364274][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.372152][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.382194][ T1155] Call Trace: [ 60.385479][ T1155] dump_stack+0x188/0x20d [ 60.389807][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 60.395616][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.400741][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.406204][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.412356][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.417650][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.422518][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.427375][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.432850][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.437718][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.442945][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.448426][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.453978][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.459990][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.465471][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.470424][ T1155] ? mark_lock+0x30/0xdd0 [ 60.474783][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.480412][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.486047][ T1155] ? do_writepages+0xfa/0x2a0 [ 60.490706][ T1155] do_writepages+0xfa/0x2a0 executing program [ 60.495363][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 60.500974][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 60.505975][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 60.511156][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 60.516013][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.521706][ T1155] ? collapse_file+0x3575/0x4300 [ 60.526659][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.532736][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.537936][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.543927][ T1155] collapse_file+0x357f/0x4300 [ 60.548677][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 60.554025][ T1155] ? khugepaged+0x24fa/0x3f80 [ 60.558689][ T1155] khugepaged+0x3049/0x3f80 [ 60.563180][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.568961][ T1155] ? lock_downgrade+0x840/0x840 [ 60.573802][ T1155] ? finish_wait+0x260/0x260 [ 60.578369][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.584235][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.590194][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 60.595205][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.600812][ T1155] kthread+0x388/0x470 [ 60.604867][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.610571][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.616265][ T1155] ret_from_fork+0x24/0x30 [ 60.890233][ T6800] can: request_module (can-proto-0) failed. [ 62.064047][ T6800] can: request_module (can-proto-0) failed. [ 62.075639][ T6800] can: request_module (can-proto-0) failed.