[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ 53.141164][ T6725] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6725 [ 53.151657][ T6725] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 53.157804][ T6725] CPU: 0 PID: 6725 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 53.167201][ T6725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.178162][ T6725] Call Trace: [ 53.182136][ T6725] dump_stack+0x188/0x20d [ 53.187751][ T6725] debug_smp_processor_id.cold+0x88/0x9b [ 53.195508][ T6725] ext4_mb_new_blocks+0xa77/0x3b30 [ 53.201356][ T6725] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.208118][ T6725] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.216105][ T6725] ext4_ext_map_blocks+0x2044/0x3410 [ 53.221789][ T6725] ? ext4_ext_release+0x10/0x10 [ 53.226952][ T6725] ? __down_timeout+0x2d0/0x2d0 [ 53.232388][ T6725] ? ext4_es_lookup_extent+0x41d/0xd30 [ 53.238880][ T6725] ext4_map_blocks+0x4cb/0x1640 [ 53.244636][ T6725] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.250387][ T6725] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.256335][ T6725] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.262640][ T6725] ? prandom_u32_state+0xe/0x170 [ 53.268175][ T6725] ? __brelse+0x84/0xa0 [ 53.272331][ T6725] ? __ext4_new_inode+0x144/0x57c0 [ 53.279319][ T6725] ext4_getblk+0xad/0x520 [ 53.284267][ T6725] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.290176][ T6725] ? ext4_free_inode+0x17e0/0x17e0 [ 53.295806][ T6725] ext4_bread+0x7c/0x380 [ 53.300142][ T6725] ? ext4_getblk+0x520/0x520 [ 53.304873][ T6725] ? dqget+0xff0/0xff0 [ 53.309214][ T6725] ext4_append+0x153/0x360 [ 53.314400][ T6725] ext4_mkdir+0x5e0/0xdf0 [ 53.319075][ T6725] ? ext4_rmdir+0xde0/0xde0 [ 53.323906][ T6725] ? security_inode_permission+0xc4/0xf0 [ 53.329643][ T6725] vfs_mkdir+0x419/0x690 [ 53.335104][ T6725] do_mkdirat+0x21e/0x280 [ 53.340618][ T6725] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.346748][ T6725] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.353075][ T6725] ? do_syscall_64+0x21/0x7d0 [ 53.358241][ T6725] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.364817][ T6725] do_syscall_64+0xf6/0x7d0 [ 53.369322][ T6725] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.375308][ T6725] RIP: 0033:0x7f217357e687 [ 53.380509][ T6725] 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 [ 53.401564][ T6725] RSP: 002b:00007ffc985acdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.410137][ T6725] RAX: ffffffffffffffda RBX: 0000563bce82a985 RCX: 00007f217357e687 [ 53.418188][ T6725] RDX: 00007ffc985acc80 RSI: 00000000000001ed RDI: 0000563bce82a985 [ 53.427056][ T6725] RBP: 00007f217357e680 R08: 0000000000000100 R09: 0000000000000000 [ 53.435339][ T6725] R10: 0000563bce82a980 R11: 0000000000000246 R12: 00000000000001ed [ 53.444487][ T6725] R13: 00007ffc985acf40 R14: 0000000000000000 R15: 0000000000000000 Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 55.850112][ T4094] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/4094 [ 55.859338][ T4094] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 55.865386][ T4094] CPU: 0 PID: 4094 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 55.874170][ T4094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.884703][ T4094] Workqueue: writeback wb_workfn (flush-8:0) [ 55.890701][ T4094] Call Trace: [ 55.894715][ T4094] dump_stack+0x188/0x20d [ 55.899122][ T4094] debug_smp_processor_id.cold+0x88/0x9b [ 55.905170][ T4094] ext4_mb_new_blocks+0xa77/0x3b30 [ 55.910572][ T4094] ? __kmalloc+0x62f/0x7a0 [ 55.915678][ T4094] ? ext4_ext_search_right+0x2ca/0xb20 [ 55.921169][ T4094] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 55.927841][ T4094] ext4_ext_map_blocks+0x2044/0x3410 [ 55.933687][ T4094] ? ext4_ext_release+0x10/0x10 [ 55.938564][ T4094] ? __down_timeout+0x2d0/0x2d0 [ 55.943412][ T4094] ? ext4_es_lookup_extent+0x41d/0xd30 [ 55.948990][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 55.954458][ T4094] ext4_map_blocks+0x4cb/0x1640 [ 55.959867][ T4094] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 55.965489][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 55.970972][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.976616][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.983218][ T4094] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 55.988690][ T4094] ext4_writepages+0x1ab7/0x3400 [ 55.993753][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 55.999648][ T4094] ? __lock_acquire+0x2224/0x48a0 [ 56.004888][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.011167][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.017619][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 56.024227][ T4094] ? do_writepages+0xfa/0x2a0 [ 56.028898][ T4094] do_writepages+0xfa/0x2a0 [ 56.033610][ T4094] ? page_writeback_cpu_online+0x10/0x10 [ 56.039262][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 56.044733][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.050275][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.056429][ T4094] ? lock_downgrade+0x840/0x840 [ 56.062671][ T4094] __writeback_single_inode+0x12a/0x1410 [ 56.069145][ T4094] ? _raw_spin_unlock+0x24/0x40 [ 56.074606][ T4094] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.080929][ T4094] writeback_sb_inodes+0x515/0xdd0 [ 56.086188][ T4094] ? __writeback_single_inode+0x1410/0x1410 [ 56.092223][ T4094] __writeback_inodes_wb+0xc3/0x250 [ 56.097504][ T4094] wb_writeback+0x910/0xd90 [ 56.102017][ T4094] ? print_usage_bug+0x240/0x240 [ 56.106944][ T4094] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.113433][ T4094] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.119462][ T4094] ? cpumask_next+0x3c/0x40 [ 56.124061][ T4094] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.129390][ T4094] wb_workfn+0xadf/0x10d0 [ 56.134672][ T4094] ? inode_wait_for_writeback+0x30/0x30 [ 56.140386][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 56.145952][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.151876][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.158373][ T4094] process_one_work+0x965/0x16a0 [ 56.164337][ T4094] ? lock_release+0x800/0x800 [ 56.169123][ T4094] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.174490][ T4094] ? rwlock_bug.part.0+0x90/0x90 [ 56.179414][ T4094] worker_thread+0x96/0xe10 [ 56.184277][ T4094] ? process_one_work+0x16a0/0x16a0 [ 56.189580][ T4094] kthread+0x388/0x470 [ 56.193729][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.199562][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.205492][ T4094] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.133' (ECDSA) to the list of known hosts. 2020/06/11 23:13:02 fuzzer started 2020/06/11 23:13:02 connecting to host at 10.128.0.26:39773 2020/06/11 23:13:02 checking machine... 2020/06/11 23:13:02 checking revisions... 2020/06/11 23:13:02 testing simple program... [ 58.695217][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6801 [ 58.704503][ T6801] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.710517][ T6801] CPU: 0 PID: 6801 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.718508][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.728550][ T6801] Call Trace: [ 58.731831][ T6801] dump_stack+0x188/0x20d [ 58.736157][ T6801] debug_smp_processor_id.cold+0x88/0x9b [ 58.741777][ T6801] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.746873][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.752311][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.758008][ T6801] ext4_ext_map_blocks+0x2044/0x3410 [ 58.763278][ T6801] ? ext4_ext_release+0x10/0x10 [ 58.768125][ T6801] ? __down_timeout+0x2d0/0x2d0 [ 58.772964][ T6801] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.778414][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 58.783333][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.788655][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.794340][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.800309][ T6801] ? prandom_u32_state+0xe/0x170 [ 58.805231][ T6801] ? __brelse+0x84/0xa0 [ 58.809368][ T6801] ? __ext4_new_inode+0x144/0x57c0 [ 58.814469][ T6801] ext4_getblk+0xad/0x520 [ 58.818789][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.826245][ T6801] ? ext4_free_inode+0x17e0/0x17e0 [ 58.831362][ T6801] ext4_bread+0x7c/0x380 [ 58.835592][ T6801] ? ext4_getblk+0x520/0x520 [ 58.840174][ T6801] ? dqget+0xff0/0xff0 [ 58.844225][ T6801] ext4_append+0x153/0x360 [ 58.848631][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 58.852955][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 58.857449][ T6801] ? security_inode_permission+0xc4/0xf0 [ 58.863063][ T6801] vfs_mkdir+0x419/0x690 [ 58.867296][ T6801] do_mkdirat+0x21e/0x280 [ 58.871622][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.876466][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.882621][ T6801] ? do_syscall_64+0x21/0x7d0 [ 58.887280][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.893252][ T6801] do_syscall_64+0xf6/0x7d0 [ 58.897734][ T6801] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.903692][ T6801] RIP: 0033:0x4b02a0 [ 58.907563][ T6801] 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 [ 58.927381][ T6801] RSP: 002b:000000c0000db4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.935791][ T6801] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 58.944189][ T6801] RDX: 00000000000001c0 RSI: 000000c00009ec80 RDI: ffffffffffffff9c [ 58.952171][ T6801] RBP: 000000c0000db510 R08: 0000000000000000 R09: 0000000000000000 [ 58.960143][ T6801] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.968104][ T6801] R13: 0000000000000065 R14: 0000000000000064 R15: 0000000000000100 [ 58.987415][ T6814] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6814 [ 58.997280][ T6814] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.004469][ T6814] CPU: 0 PID: 6814 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.012703][ T6814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.022837][ T6814] Call Trace: [ 59.026116][ T6814] dump_stack+0x188/0x20d [ 59.030837][ T6814] debug_smp_processor_id.cold+0x88/0x9b [ 59.037050][ T6814] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.042355][ T6814] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.047798][ T6814] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.053524][ T6814] ext4_ext_map_blocks+0x2044/0x3410 [ 59.058813][ T6814] ? ext4_ext_release+0x10/0x10 [ 59.064288][ T6814] ? __down_timeout+0x2d0/0x2d0 [ 59.069621][ T6814] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.075419][ T6814] ext4_map_blocks+0x4cb/0x1640 [ 59.081135][ T6814] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.086422][ T6814] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.092154][ T6814] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.098742][ T6814] ? prandom_u32_state+0xe/0x170 [ 59.104067][ T6814] ? __brelse+0x84/0xa0 [ 59.108645][ T6814] ? __ext4_new_inode+0x144/0x57c0 [ 59.113882][ T6814] ext4_getblk+0xad/0x520 [ 59.118211][ T6814] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.124564][ T6814] ? ext4_free_inode+0x17e0/0x17e0 [ 59.131076][ T6814] ext4_bread+0x7c/0x380 [ 59.135338][ T6814] ? ext4_getblk+0x520/0x520 [ 59.140103][ T6814] ? dqget+0xff0/0xff0 [ 59.144370][ T6814] ext4_append+0x153/0x360 [ 59.150559][ T6814] ext4_mkdir+0x5e0/0xdf0 [ 59.155041][ T6814] ? ext4_rmdir+0xde0/0xde0 [ 59.160472][ T6814] ? security_inode_permission+0xc4/0xf0 [ 59.167184][ T6814] vfs_mkdir+0x419/0x690 [ 59.171552][ T6814] do_mkdirat+0x21e/0x280 [ 59.175898][ T6814] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.181048][ T6814] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.187010][ T6814] ? do_syscall_64+0x21/0x7d0 [ 59.192118][ T6814] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.198253][ T6814] do_syscall_64+0xf6/0x7d0 [ 59.203095][ T6814] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.209161][ T6814] RIP: 0033:0x45bee7 [ 59.213568][ T6814] 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 [ 59.234808][ T6814] RSP: 002b:00007ffe1cf369b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.243202][ T6814] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.252228][ T6814] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe1cf36b90 [ 59.260439][ T6814] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003540 [ 59.268521][ T6814] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.276695][ T6814] R13: 00007ffe1cf36b90 R14: 8421084210842109 R15: 00007ffe1cf36b9c [ 59.362542][ T6815] IPVS: ftp: loaded support on port[0] = 21 [ 59.407253][ T6815] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6815 [ 59.417582][ T6815] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.424358][ T6815] CPU: 1 PID: 6815 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.433881][ T6815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.444033][ T6815] Call Trace: [ 59.447330][ T6815] dump_stack+0x188/0x20d [ 59.451662][ T6815] debug_smp_processor_id.cold+0x88/0x9b [ 59.457408][ T6815] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.463466][ T6815] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.469598][ T6815] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.475667][ T6815] ext4_ext_map_blocks+0x2044/0x3410 [ 59.481053][ T6815] ? ext4_ext_release+0x10/0x10 [ 59.486029][ T6815] ? __down_timeout+0x2d0/0x2d0 [ 59.490884][ T6815] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.496363][ T6815] ext4_map_blocks+0x4cb/0x1640 [ 59.501222][ T6815] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.506400][ T6815] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.511923][ T6815] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.517878][ T6815] ? prandom_u32_state+0xe/0x170 [ 59.525271][ T6815] ? __brelse+0x84/0xa0 [ 59.529681][ T6815] ? __ext4_new_inode+0x144/0x57c0 [ 59.535023][ T6815] ext4_getblk+0xad/0x520 [ 59.539654][ T6815] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.545366][ T6815] ? ext4_free_inode+0x17e0/0x17e0 [ 59.550479][ T6815] ext4_bread+0x7c/0x380 [ 59.555007][ T6815] ? ext4_getblk+0x520/0x520 [ 59.559965][ T6815] ? dqget+0xff0/0xff0 [ 59.564677][ T6815] ext4_append+0x153/0x360 [ 59.570256][ T6815] ext4_mkdir+0x5e0/0xdf0 [ 59.574997][ T6815] ? ext4_rmdir+0xde0/0xde0 [ 59.580007][ T6815] ? security_inode_permission+0xc4/0xf0 [ 59.585870][ T6815] vfs_mkdir+0x419/0x690 [ 59.590773][ T6815] do_mkdirat+0x21e/0x280 [ 59.595119][ T6815] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.600175][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.607068][ T6815] ? do_syscall_64+0x21/0x7d0 [ 59.611945][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.617917][ T6815] do_syscall_64+0xf6/0x7d0 [ 59.622536][ T6815] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.628590][ T6815] RIP: 0033:0x45bee7 [ 59.632488][ T6815] 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 [ 59.652193][ T6815] RSP: 002b:00007ffe1cf368a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.660600][ T6815] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.668659][ T6815] RDX: 00007ffe1cf368f3 RSI: 00000000000001ff RDI: 00007ffe1cf368f0 [ 59.676933][ T6815] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.684901][ T6815] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.693270][ T6815] R13: 00007ffe1cf368e0 R14: 0000000000000000 R15: 00007ffe1cf368f0 [ 59.746606][ T6815] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6815 [ 59.756126][ T6815] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.762644][ T6815] CPU: 1 PID: 6815 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.770883][ T6815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.780948][ T6815] Call Trace: [ 59.784251][ T6815] dump_stack+0x188/0x20d [ 59.788638][ T6815] debug_smp_processor_id.cold+0x88/0x9b [ 59.794284][ T6815] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.799538][ T6815] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.805006][ T6815] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.810744][ T6815] ext4_ext_map_blocks+0x2044/0x3410 [ 59.816162][ T6815] ? ext4_ext_release+0x10/0x10 [ 59.821042][ T6815] ? __down_timeout+0x2d0/0x2d0 [ 59.825892][ T6815] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.831442][ T6815] ext4_map_blocks+0x4cb/0x1640 [ 59.836392][ T6815] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.841724][ T6815] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.847273][ T6815] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.853251][ T6815] ? prandom_u32_state+0xe/0x170 [ 59.859304][ T6815] ? __brelse+0x84/0xa0 [ 59.863623][ T6815] ? __ext4_new_inode+0x144/0x57c0 [ 59.868747][ T6815] ext4_getblk+0xad/0x520 [ 59.873069][ T6815] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.878803][ T6815] ? ext4_free_inode+0x17e0/0x17e0 [ 59.883941][ T6815] ext4_bread+0x7c/0x380 [ 59.888177][ T6815] ? ext4_getblk+0x520/0x520 [ 59.892765][ T6815] ? dqget+0xff0/0xff0 [ 59.896839][ T6815] ext4_append+0x153/0x360 [ 59.901258][ T6815] ext4_mkdir+0x5e0/0xdf0 [ 59.905580][ T6815] ? ext4_rmdir+0xde0/0xde0 [ 59.910065][ T6815] ? security_inode_permission+0xc4/0xf0 [ 59.915680][ T6815] vfs_mkdir+0x419/0x690 [ 59.919902][ T6815] do_mkdirat+0x21e/0x280 [ 59.924220][ T6815] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.929050][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.935005][ T6815] ? do_syscall_64+0x21/0x7d0 [ 59.939664][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.945650][ T6815] do_syscall_64+0xf6/0x7d0 [ 59.950132][ T6815] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.956000][ T6815] RIP: 0033:0x45bee7 [ 59.959882][ T6815] 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 [ 59.979555][ T6815] RSP: 002b:00007ffe1cf368a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.988381][ T6815] RAX: ffffffffffffffda RBX: 000000000000e958 RCX: 000000000045bee7 2020/06/11 23:13:03 building call list... [ 59.996502][ T6815] RDX: 00007ffe1cf368f3 RSI: 00000000000001ff RDI: 00007ffe1cf368f0 [ 60.004470][ T6815] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.012430][ T6815] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.020392][ T6815] R13: 00007ffe1cf368e0 R14: 000000000000e945 R15: 00007ffe1cf368f0 [ 60.308715][ T6754] tipc: TX() has been purged, node left! [ 61.299739][ T4094] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/4094 [ 61.309124][ T4094] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.315974][ T4094] CPU: 0 PID: 4094 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 61.324479][ T4094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.334642][ T4094] Workqueue: writeback wb_workfn (flush-8:0) [ 61.340786][ T4094] Call Trace: [ 61.344171][ T4094] dump_stack+0x188/0x20d [ 61.348514][ T4094] debug_smp_processor_id.cold+0x88/0x9b [ 61.354175][ T4094] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.359297][ T4094] ? __kmalloc+0x62f/0x7a0 [ 61.363737][ T4094] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.369212][ T4094] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.375297][ T4094] ext4_ext_map_blocks+0x2044/0x3410 [ 61.380613][ T4094] ? ext4_ext_release+0x10/0x10 [ 61.385529][ T4094] ? __down_timeout+0x2d0/0x2d0 [ 61.390591][ T4094] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.396077][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.401561][ T4094] ext4_map_blocks+0x4cb/0x1640 [ 61.406444][ T4094] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.411831][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.417309][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.422892][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.429074][ T4094] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.434557][ T4094] ext4_writepages+0x1ab7/0x3400 [ 61.439560][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.445249][ T4094] ? __lock_acquire+0x2224/0x48a0 [ 61.450301][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 61.456287][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 61.462270][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.467897][ T4094] ? do_writepages+0xfa/0x2a0 [ 61.472572][ T4094] do_writepages+0xfa/0x2a0 [ 61.477082][ T4094] ? page_writeback_cpu_online+0x10/0x10 [ 61.482711][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.488187][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.493772][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.499768][ T4094] ? lock_downgrade+0x840/0x840 [ 61.504633][ T4094] __writeback_single_inode+0x12a/0x1410 [ 61.510268][ T4094] ? _raw_spin_unlock+0x24/0x40 [ 61.515132][ T4094] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 61.521112][ T4094] writeback_sb_inodes+0x515/0xdd0 [ 61.526231][ T4094] ? __writeback_single_inode+0x1410/0x1410 [ 61.532140][ T4094] __writeback_inodes_wb+0xc3/0x250 [ 61.537342][ T4094] wb_writeback+0x910/0xd90 [ 61.541854][ T4094] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 61.548188][ T4094] ? cpumask_next+0x3c/0x40 [ 61.552694][ T4094] ? get_nr_dirty_inodes+0xd6/0x130 [ 61.557897][ T4094] wb_workfn+0x9d8/0x10d0 [ 61.562234][ T4094] ? inode_wait_for_writeback+0x30/0x30 [ 61.567797][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.573621][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.579169][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.585170][ T4094] process_one_work+0x965/0x16a0 [ 61.590114][ T4094] ? lock_release+0x800/0x800 [ 61.594785][ T4094] ? pwq_dec_nr_in_flight+0x310/0x310 executing program [ 61.600166][ T4094] ? rwlock_bug.part.0+0x90/0x90 [ 61.605129][ T4094] worker_thread+0x96/0xe10 [ 61.609654][ T4094] ? process_one_work+0x16a0/0x16a0 [ 61.614860][ T4094] kthread+0x388/0x470 [ 61.618920][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.624631][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.630353][ T4094] ret_from_fork+0x24/0x30 [ 61.651524][ T4094] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/4094 [ 61.654000][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.661256][ T4094] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.661282][ T4094] CPU: 0 PID: 4094 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 61.670501][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.676333][ T4094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.676350][ T4094] Workqueue: writeback wb_workfn (flush-8:0) [ 61.708599][ T4094] Call Trace: [ 61.711879][ T4094] dump_stack+0x188/0x20d [ 61.716208][ T4094] debug_smp_processor_id.cold+0x88/0x9b [ 61.721844][ T4094] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.726938][ T4094] ? __kmalloc+0x62f/0x7a0 [ 61.731346][ T4094] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.736785][ T4094] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.742511][ T4094] ext4_ext_map_blocks+0x2044/0x3410 [ 61.747787][ T4094] ? ext4_ext_release+0x10/0x10 [ 61.752633][ T4094] ? __down_timeout+0x2d0/0x2d0 [ 61.757465][ T4094] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.762906][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.768364][ T4094] ext4_map_blocks+0x4cb/0x1640 [ 61.773212][ T4094] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.778390][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.783859][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.789387][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.795350][ T4094] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.800807][ T4094] ext4_writepages+0x1ab7/0x3400 [ 61.805746][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.811373][ T4094] ? __lock_acquire+0x2224/0x48a0 [ 61.816409][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 61.822395][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 61.828372][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.834076][ T4094] ? do_writepages+0xfa/0x2a0 [ 61.838746][ T4094] do_writepages+0xfa/0x2a0 [ 61.843240][ T4094] ? page_writeback_cpu_online+0x10/0x10 [ 61.848858][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.854315][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.860992][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.866966][ T4094] ? lock_downgrade+0x840/0x840 [ 61.871811][ T4094] __writeback_single_inode+0x12a/0x1410 [ 61.877493][ T4094] ? _raw_spin_unlock+0x24/0x40 [ 61.882430][ T4094] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 61.888399][ T4094] writeback_sb_inodes+0x515/0xdd0 [ 61.893533][ T4094] ? __writeback_single_inode+0x1410/0x1410 [ 61.899526][ T4094] __writeback_inodes_wb+0xc3/0x250 [ 61.904747][ T4094] wb_writeback+0x910/0xd90 [ 61.909247][ T4094] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 61.915604][ T4094] ? cpumask_next+0x3c/0x40 [ 61.920119][ T4094] ? get_nr_dirty_inodes+0xd6/0x130 [ 61.925356][ T4094] wb_workfn+0x9d8/0x10d0 [ 61.929915][ T4094] ? inode_wait_for_writeback+0x30/0x30 [ 61.935455][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 61.940932][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.946467][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.952439][ T4094] process_one_work+0x965/0x16a0 [ 61.957377][ T4094] ? lock_release+0x800/0x800 [ 61.962184][ T4094] ? pwq_dec_nr_in_flight+0x310/0x310 [ 61.967723][ T4094] ? rwlock_bug.part.0+0x90/0x90 [ 61.972662][ T4094] worker_thread+0x96/0xe10 [ 61.977188][ T4094] ? process_one_work+0x16a0/0x16a0 [ 61.982377][ T4094] kthread+0x388/0x470 [ 61.986447][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.992163][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.998087][ T4094] ret_from_fork+0x24/0x30 [ 62.002527][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.010439][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.020502][ T1155] Call Trace: [ 62.023908][ T1155] dump_stack+0x188/0x20d [ 62.028277][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 62.037405][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.038792][ T4094] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/4094 [ 62.042525][ T1155] ? __kmalloc+0x62f/0x7a0 [ 62.051858][ T4094] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.056300][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.069375][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.075290][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 62.081368][ T1155] ? ext4_ext_release+0x10/0x10 [ 62.086416][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 62.091383][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.097111][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 62.101986][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.107197][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 62.112786][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.118329][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.124938][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.130418][ T1155] ext4_writepages+0x1ab7/0x3400 [ 62.135348][ T1155] ? mark_lock+0x30/0xdd0 [ 62.139681][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.145502][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.151140][ T1155] ? do_writepages+0xfa/0x2a0 [ 62.155811][ T1155] do_writepages+0xfa/0x2a0 [ 62.160323][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 62.166136][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 62.171247][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 62.176435][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 62.181625][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.187335][ T1155] ? collapse_file+0x3575/0x4300 [ 62.192344][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 62.198931][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.204123][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.210092][ T1155] collapse_file+0x357f/0x4300 [ 62.214864][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 62.220258][ T1155] ? khugepaged+0x24fa/0x3f80 [ 62.224939][ T1155] khugepaged+0x3049/0x3f80 [ 62.229462][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.235338][ T1155] ? lock_downgrade+0x840/0x840 [ 62.240267][ T1155] ? finish_wait+0x260/0x260 [ 62.244842][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.250984][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.257058][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 62.262155][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.267773][ T1155] kthread+0x388/0x470 [ 62.271831][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.277534][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.283249][ T1155] ret_from_fork+0x24/0x30 [ 62.287760][ T4094] CPU: 0 PID: 4094 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 62.295834][ T4094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.305914][ T4094] Workqueue: writeback wb_workfn (flush-8:0) [ 62.312689][ T4094] Call Trace: [ 62.315998][ T4094] dump_stack+0x188/0x20d [ 62.320330][ T4094] debug_smp_processor_id.cold+0x88/0x9b [ 62.325957][ T4094] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.331067][ T4094] ? __kmalloc+0x62f/0x7a0 [ 62.335496][ T4094] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.340949][ T4094] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.346684][ T4094] ext4_ext_map_blocks+0x2044/0x3410 [ 62.351977][ T4094] ? ext4_ext_release+0x10/0x10 [ 62.356870][ T4094] ? __down_timeout+0x2d0/0x2d0 [ 62.361736][ T4094] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.367471][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.372931][ T4094] ext4_map_blocks+0x4cb/0x1640 [ 62.377787][ T4094] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.383015][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.388694][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.394660][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.400822][ T4094] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.406291][ T4094] ext4_writepages+0x1ab7/0x3400 [ 62.411255][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.417244][ T4094] ? __lock_acquire+0x2224/0x48a0 [ 62.422744][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.429271][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.435252][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.440911][ T4094] ? do_writepages+0xfa/0x2a0 [ 62.445622][ T4094] do_writepages+0xfa/0x2a0 [ 62.451556][ T4094] ? page_writeback_cpu_online+0x10/0x10 [ 62.457189][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.464636][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.470719][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.476692][ T4094] ? lock_downgrade+0x840/0x840 [ 62.481548][ T4094] __writeback_single_inode+0x12a/0x1410 [ 62.487179][ T4094] ? _raw_spin_unlock+0x24/0x40 [ 62.492117][ T4094] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 62.498094][ T4094] writeback_sb_inodes+0x515/0xdd0 [ 62.503216][ T4094] ? __writeback_single_inode+0x1410/0x1410 [ 62.509399][ T4094] __writeback_inodes_wb+0xc3/0x250 [ 62.514603][ T4094] wb_writeback+0x910/0xd90 [ 62.519130][ T4094] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 62.525481][ T4094] ? cpumask_next+0x3c/0x40 [ 62.530099][ T4094] ? get_nr_dirty_inodes+0xd6/0x130 [ 62.535492][ T4094] wb_workfn+0x9d8/0x10d0 [ 62.539844][ T4094] ? inode_wait_for_writeback+0x30/0x30 [ 62.545400][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.551000][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.557011][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.563916][ T4094] process_one_work+0x965/0x16a0 [ 62.569318][ T4094] ? lock_release+0x800/0x800 [ 62.574206][ T4094] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.581615][ T4094] ? rwlock_bug.part.0+0x90/0x90 [ 62.586773][ T4094] worker_thread+0x96/0xe10 [ 62.591553][ T4094] ? process_one_work+0x16a0/0x16a0 [ 62.596749][ T4094] kthread+0x388/0x470 [ 62.600832][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.606558][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.612305][ T4094] ret_from_fork+0x24/0x30 [ 62.619128][ T4094] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/4094 [ 62.628954][ T4094] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 62.635056][ T4094] CPU: 0 PID: 4094 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 62.643121][ T4094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.653354][ T4094] Workqueue: writeback wb_workfn (flush-8:0) [ 62.659342][ T4094] Call Trace: [ 62.662781][ T4094] dump_stack+0x188/0x20d [ 62.667228][ T4094] debug_smp_processor_id.cold+0x88/0x9b [ 62.672885][ T4094] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.678050][ T4094] ? __kmalloc+0x62f/0x7a0 [ 62.682573][ T4094] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.689274][ T4094] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.695006][ T4094] ext4_ext_map_blocks+0x2044/0x3410 [ 62.701085][ T4094] ? ext4_ext_release+0x10/0x10 [ 62.705988][ T4094] ? __down_timeout+0x2d0/0x2d0 [ 62.710893][ T4094] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.716360][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.721849][ T4094] ext4_map_blocks+0x4cb/0x1640 [ 62.726730][ T4094] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.731976][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.737452][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.743000][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.749006][ T4094] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.754468][ T4094] ext4_writepages+0x1ab7/0x3400 [ 62.759433][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.765409][ T4094] ? __lock_acquire+0x2224/0x48a0 [ 62.770738][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.776722][ T4094] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.782714][ T4094] ? __ext4_mark_inode_dirty+0x950/0x950 [ 62.788350][ T4094] ? do_writepages+0xfa/0x2a0 [ 62.793040][ T4094] do_writepages+0xfa/0x2a0 [ 62.798362][ T4094] ? page_writeback_cpu_online+0x10/0x10 [ 62.803991][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.809458][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.815002][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.820979][ T4094] ? lock_downgrade+0x840/0x840 [ 62.825837][ T4094] __writeback_single_inode+0x12a/0x1410 [ 62.831476][ T4094] ? _raw_spin_unlock+0x24/0x40 [ 62.836338][ T4094] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 62.842932][ T4094] writeback_sb_inodes+0x515/0xdd0 [ 62.848074][ T4094] ? __writeback_single_inode+0x1410/0x1410 [ 62.853987][ T4094] __writeback_inodes_wb+0xc3/0x250 [ 62.859192][ T4094] wb_writeback+0x910/0xd90 [ 62.863730][ T4094] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 62.870069][ T4094] ? cpumask_next+0x3c/0x40 [ 62.874594][ T4094] ? get_nr_dirty_inodes+0xd6/0x130 [ 62.879805][ T4094] wb_workfn+0x9d8/0x10d0 [ 62.884228][ T4094] ? inode_wait_for_writeback+0x30/0x30 [ 62.889793][ T4094] ? debug_smp_processor_id+0x2f/0x185 [ 62.895491][ T4094] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.901044][ T4094] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.907205][ T4094] process_one_work+0x965/0x16a0 [ 62.912155][ T4094] ? lock_release+0x800/0x800 [ 62.916843][ T4094] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.922308][ T4094] ? rwlock_bug.part.0+0x90/0x90 [ 62.927254][ T4094] worker_thread+0x96/0xe10 [ 62.931773][ T4094] ? process_one_work+0x16a0/0x16a0 [ 62.936975][ T4094] kthread+0x388/0x470 [ 62.941040][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.946755][ T4094] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.952474][ T4094] ret_from_fork+0x24/0x30 [ 62.991986][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 63.001556][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.007461][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.015348][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.025430][ T1155] Call Trace: [ 63.028746][ T1155] dump_stack+0x188/0x20d [ 63.033078][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 63.038729][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.043874][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.049338][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.055508][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 63.060848][ T1155] ? ext4_ext_release+0x10/0x10 [ 63.065722][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 63.070572][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.076035][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 63.080905][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.086111][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 63.091576][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.097172][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.103178][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.108658][ T1155] ext4_writepages+0x1ab7/0x3400 [ 63.113617][ T1155] ? mark_lock+0x30/0xdd0 [ 63.117979][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.123738][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.129387][ T1155] ? do_writepages+0xfa/0x2a0 [ 63.134486][ T1155] do_writepages+0xfa/0x2a0 [ 63.134506][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 63.134525][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 63.151663][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 63.151684][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 63.161731][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.161749][ T1155] ? collapse_file+0x3575/0x4300 [ 63.172412][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.178467][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.183648][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.189646][ T1155] collapse_file+0x357f/0x4300 [ 63.195058][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 63.200623][ T1155] ? khugepaged+0x24fa/0x3f80 [ 63.205384][ T1155] khugepaged+0x3049/0x3f80 [ 63.209896][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.215562][ T1155] ? lock_downgrade+0x840/0x840 [ 63.220414][ T1155] ? finish_wait+0x260/0x260 [ 63.225035][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.230846][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.236811][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 63.241820][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.247440][ T1155] kthread+0x388/0x470 [ 63.251513][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.257307][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.263023][ T1155] ret_from_fork+0x24/0x30 [ 63.425248][ T6796] can: request_module (can-proto-0) failed. [ 63.632833][ T6796] can: request_module (can-proto-0) failed. [ 63.644192][ T6796] can: request_module (can-proto-0) failed.