[ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 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. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 59.249325][ T319] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/319 [ 59.259365][ T319] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.265302][ T319] CPU: 0 PID: 319 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 59.273259][ T319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.283312][ T319] Workqueue: writeback wb_workfn (flush-8:0) [ 59.289291][ T319] Call Trace: [ 59.292598][ T319] dump_stack+0x188/0x20d [ 59.296916][ T319] debug_smp_processor_id.cold+0x88/0x9b [ 59.302530][ T319] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.307639][ T319] ? __kmalloc+0x62f/0x7a0 [ 59.312118][ T319] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.317761][ T319] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.323478][ T319] ext4_ext_map_blocks+0x2044/0x3410 [ 59.328754][ T319] ? ext4_ext_release+0x10/0x10 [ 59.333627][ T319] ? __down_timeout+0x2d0/0x2d0 [ 59.338472][ T319] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.343913][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 59.349454][ T319] ext4_map_blocks+0x4cb/0x1640 [ 59.354291][ T319] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.359470][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 59.364913][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.370464][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.376571][ T319] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.382030][ T319] ext4_writepages+0x1ab7/0x3400 [ 59.386978][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.392704][ T319] ? __lock_acquire+0x2224/0x48a0 [ 59.397739][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.403704][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.409669][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.415309][ T319] ? do_writepages+0xfa/0x2a0 [ 59.419981][ T319] do_writepages+0xfa/0x2a0 [ 59.424490][ T319] ? page_writeback_cpu_online+0x10/0x10 [ 59.430123][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 59.435599][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.441129][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.447093][ T319] ? lock_downgrade+0x840/0x840 [ 59.452032][ T319] __writeback_single_inode+0x12a/0x1410 [ 59.457684][ T319] ? _raw_spin_unlock+0x24/0x40 [ 59.462567][ T319] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 59.468598][ T319] writeback_sb_inodes+0x515/0xdd0 [ 59.473759][ T319] ? __writeback_single_inode+0x1410/0x1410 [ 59.479662][ T319] __writeback_inodes_wb+0xc3/0x250 [ 59.484863][ T319] wb_writeback+0x910/0xd90 [ 59.489517][ T319] ? print_usage_bug+0x240/0x240 [ 59.494470][ T319] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 59.500813][ T319] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 59.506716][ T319] ? cpumask_next+0x3c/0x40 [ 59.511254][ T319] ? get_nr_dirty_inodes+0xd6/0x130 [ 59.516466][ T319] wb_workfn+0xadf/0x10d0 [ 59.520800][ T319] ? inode_wait_for_writeback+0x30/0x30 [ 59.526490][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 59.531964][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.537536][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.543509][ T319] process_one_work+0x965/0x16a0 [ 59.548442][ T319] ? lock_release+0x800/0x800 [ 59.553328][ T319] ? pwq_dec_nr_in_flight+0x310/0x310 [ 59.558688][ T319] ? rwlock_bug.part.0+0x90/0x90 [ 59.563614][ T319] worker_thread+0x96/0xe10 [ 59.568120][ T319] ? process_one_work+0x16a0/0x16a0 [ 59.573309][ T319] kthread+0x388/0x470 [ 59.577379][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.583087][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.588794][ T319] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. 2020/06/14 05:46:17 fuzzer started 2020/06/14 05:46:18 connecting to host at 10.128.0.26:44707 2020/06/14 05:46:18 checking machine... 2020/06/14 05:46:18 checking revisions... 2020/06/14 05:46:18 testing simple program... [ 64.311996][ T6823] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6823 [ 64.321216][ T6823] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 64.327105][ T6823] CPU: 1 PID: 6823 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 64.334987][ T6823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.345140][ T6823] Call Trace: [ 64.348432][ T6823] dump_stack+0x188/0x20d [ 64.352749][ T6823] debug_smp_processor_id.cold+0x88/0x9b [ 64.358377][ T6823] ext4_mb_new_blocks+0xa77/0x3b30 [ 64.363500][ T6823] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.368946][ T6823] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.374649][ T6823] ext4_ext_map_blocks+0x2044/0x3410 [ 64.379928][ T6823] ? ext4_ext_release+0x10/0x10 [ 64.384786][ T6823] ? __down_timeout+0x2d0/0x2d0 [ 64.389746][ T6823] ? ext4_es_lookup_extent+0x41d/0xd30 [ 64.395205][ T6823] ext4_map_blocks+0x4cb/0x1640 [ 64.400048][ T6823] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.405575][ T6823] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.411681][ T6823] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.417647][ T6823] ? prandom_u32_state+0xe/0x170 [ 64.422595][ T6823] ? __brelse+0x84/0xa0 [ 64.426736][ T6823] ? __ext4_new_inode+0x144/0x57c0 [ 64.431841][ T6823] ext4_getblk+0xad/0x520 [ 64.436157][ T6823] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 64.441886][ T6823] ? ext4_free_inode+0x17e0/0x17e0 [ 64.446991][ T6823] ext4_bread+0x7c/0x380 [ 64.451217][ T6823] ? ext4_getblk+0x520/0x520 [ 64.455786][ T6823] ? dqget+0xff0/0xff0 [ 64.459840][ T6823] ext4_append+0x153/0x360 [ 64.464239][ T6823] ext4_mkdir+0x5e0/0xdf0 [ 64.468576][ T6823] ? ext4_rmdir+0xde0/0xde0 [ 64.473069][ T6823] ? security_inode_permission+0xc4/0xf0 [ 64.478716][ T6823] vfs_mkdir+0x419/0x690 [ 64.482968][ T6823] do_mkdirat+0x21e/0x280 [ 64.487348][ T6823] ? __ia32_sys_mknod+0xb0/0xb0 [ 64.492324][ T6823] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.498316][ T6823] ? do_syscall_64+0x21/0x7d0 [ 64.503004][ T6823] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.509015][ T6823] do_syscall_64+0xf6/0x7d0 [ 64.513528][ T6823] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 64.519430][ T6823] RIP: 0033:0x4b02a0 [ 64.523307][ T6823] 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 [ 64.542898][ T6823] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 64.551727][ T6823] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 64.559700][ T6823] RDX: 00000000000001c0 RSI: 000000c000027320 RDI: ffffffffffffff9c [ 64.567679][ T6823] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 64.575648][ T6823] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 64.583603][ T6823] R13: 000000000000009a R14: 0000000000000099 R15: 0000000000000100 [ 64.608282][ T319] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/319 [ 64.617871][ T319] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 64.623765][ T319] CPU: 0 PID: 319 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 64.631721][ T319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.641788][ T319] Workqueue: writeback wb_workfn (flush-8:0) [ 64.647768][ T319] Call Trace: [ 64.651049][ T319] dump_stack+0x188/0x20d [ 64.655622][ T319] debug_smp_processor_id.cold+0x88/0x9b [ 64.661239][ T319] ext4_mb_new_blocks+0xa77/0x3b30 [ 64.666334][ T319] ? __kmalloc+0x62f/0x7a0 [ 64.670760][ T319] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.676199][ T319] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.681927][ T319] ext4_ext_map_blocks+0x2044/0x3410 [ 64.687221][ T319] ? ext4_ext_release+0x10/0x10 [ 64.692265][ T319] ? __down_timeout+0x2d0/0x2d0 [ 64.697271][ T319] ? ext4_es_lookup_extent+0x41d/0xd30 [ 64.702725][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 64.708181][ T319] ext4_map_blocks+0x4cb/0x1640 [ 64.713042][ T319] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.718218][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 64.723681][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.730860][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.736823][ T319] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.742267][ T319] ext4_writepages+0x1ab7/0x3400 [ 64.747223][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.753015][ T319] ? __lock_acquire+0x2224/0x48a0 [ 64.758063][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 64.764283][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 64.770262][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.775889][ T319] ? do_writepages+0xfa/0x2a0 [ 64.780555][ T319] do_writepages+0xfa/0x2a0 [ 64.785046][ T319] ? page_writeback_cpu_online+0x10/0x10 [ 64.790663][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 64.796107][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.801652][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.807630][ T319] ? lock_downgrade+0x840/0x840 [ 64.812475][ T319] __writeback_single_inode+0x12a/0x1410 [ 64.818093][ T319] ? _raw_spin_unlock+0x24/0x40 [ 64.822926][ T319] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 64.828914][ T319] writeback_sb_inodes+0x515/0xdd0 [ 64.834018][ T319] ? __writeback_single_inode+0x1410/0x1410 [ 64.839991][ T319] __writeback_inodes_wb+0xc3/0x250 [ 64.845196][ T319] wb_writeback+0x910/0xd90 [ 64.849713][ T319] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 64.851013][ T6826] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6826 [ 64.856096][ T319] ? cpumask_next+0x3c/0x40 [ 64.865519][ T6826] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 64.869946][ T319] ? get_nr_dirty_inodes+0xd6/0x130 [ 64.869967][ T319] wb_workfn+0x9d8/0x10d0 [ 64.869989][ T319] ? inode_wait_for_writeback+0x30/0x30 [ 64.870007][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 64.870031][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.870050][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.908000][ T319] process_one_work+0x965/0x16a0 [ 64.912938][ T319] ? lock_release+0x800/0x800 [ 64.917602][ T319] ? pwq_dec_nr_in_flight+0x310/0x310 [ 64.922985][ T319] ? rwlock_bug.part.0+0x90/0x90 [ 64.927920][ T319] worker_thread+0x96/0xe10 [ 64.932420][ T319] ? process_one_work+0x16a0/0x16a0 [ 64.937626][ T319] kthread+0x388/0x470 [ 64.941685][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.947398][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.953116][ T319] ret_from_fork+0x24/0x30 [ 64.957539][ T6826] CPU: 1 PID: 6826 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 64.965792][ T6826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.968377][ T319] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/319 [ 64.975861][ T6826] Call Trace: [ 64.985066][ T319] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 64.988245][ T6826] dump_stack+0x188/0x20d [ 64.988266][ T6826] debug_smp_processor_id.cold+0x88/0x9b [ 64.988279][ T6826] ext4_mb_new_blocks+0xa77/0x3b30 [ 64.988307][ T6826] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.014800][ T6826] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 65.022086][ T6826] ext4_ext_map_blocks+0x2044/0x3410 [ 65.027370][ T6826] ? ext4_ext_release+0x10/0x10 [ 65.032232][ T6826] ? __down_timeout+0x2d0/0x2d0 [ 65.037088][ T6826] ? ext4_es_lookup_extent+0x41d/0xd30 [ 65.042543][ T6826] ext4_map_blocks+0x4cb/0x1640 [ 65.047390][ T6826] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.052577][ T6826] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.058127][ T6826] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.064108][ T6826] ? prandom_u32_state+0xe/0x170 [ 65.069065][ T6826] ? __brelse+0x84/0xa0 [ 65.073222][ T6826] ? __ext4_new_inode+0x144/0x57c0 [ 65.078323][ T6826] ext4_getblk+0xad/0x520 [ 65.082640][ T6826] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 65.088350][ T6826] ? ext4_free_inode+0x17e0/0x17e0 [ 65.093449][ T6826] ext4_bread+0x7c/0x380 [ 65.097699][ T6826] ? ext4_getblk+0x520/0x520 [ 65.102276][ T6826] ? dqget+0xff0/0xff0 [ 65.106336][ T6826] ext4_append+0x153/0x360 [ 65.110743][ T6826] ext4_mkdir+0x5e0/0xdf0 [ 65.115077][ T6826] ? ext4_rmdir+0xde0/0xde0 [ 65.119570][ T6826] ? security_inode_permission+0xc4/0xf0 [ 65.125196][ T6826] vfs_mkdir+0x419/0x690 [ 65.129445][ T6826] do_mkdirat+0x21e/0x280 [ 65.133767][ T6826] ? __ia32_sys_mknod+0xb0/0xb0 [ 65.138605][ T6826] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.144572][ T6826] ? do_syscall_64+0x21/0x7d0 [ 65.149337][ T6826] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.155326][ T6826] do_syscall_64+0xf6/0x7d0 [ 65.159995][ T6826] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 65.165889][ T6826] RIP: 0033:0x45bee7 [ 65.169776][ T6826] 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 [ 65.189364][ T6826] RSP: 002b:00007ffdfdfb7358 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 65.197879][ T6826] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 65.205833][ T6826] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffdfdfb7530 [ 65.213792][ T6826] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003a00 [ 65.221784][ T6826] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 65.230350][ T6826] R13: 00007ffdfdfb7530 R14: 8421084210842109 R15: 00007ffdfdfb753c [ 65.238328][ T319] CPU: 0 PID: 319 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 65.246319][ T319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.256418][ T319] Workqueue: writeback wb_workfn (flush-8:0) [ 65.262409][ T319] Call Trace: [ 65.265716][ T319] dump_stack+0x188/0x20d [ 65.270063][ T319] debug_smp_processor_id.cold+0x88/0x9b [ 65.275700][ T319] ext4_mb_new_blocks+0xa77/0x3b30 [ 65.280817][ T319] ? __kmalloc+0x62f/0x7a0 [ 65.285257][ T319] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.290726][ T319] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 65.296462][ T319] ext4_ext_map_blocks+0x2044/0x3410 [ 65.301765][ T319] ? ext4_ext_release+0x10/0x10 [ 65.306643][ T319] ? __down_timeout+0x2d0/0x2d0 [ 65.311499][ T319] ? ext4_es_lookup_extent+0x41d/0xd30 [ 65.316972][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 65.322447][ T319] ext4_map_blocks+0x4cb/0x1640 [ 65.327401][ T319] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.332608][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 65.338171][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.343831][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.349961][ T6827] IPVS: ftp: loaded support on port[0] = 21 [ 65.350712][ T319] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 65.362044][ T319] ext4_writepages+0x1ab7/0x3400 [ 65.367003][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 65.372676][ T319] ? __lock_acquire+0x2224/0x48a0 [ 65.377732][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 65.383732][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 65.389730][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 65.395505][ T319] ? do_writepages+0xfa/0x2a0 [ 65.400197][ T319] do_writepages+0xfa/0x2a0 [ 65.404728][ T319] ? page_writeback_cpu_online+0x10/0x10 [ 65.406517][ T6827] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6827 [ 65.410382][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 65.410406][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.410426][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.419820][ T6827] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 65.425266][ T319] ? lock_downgrade+0x840/0x840 [ 65.447562][ T319] __writeback_single_inode+0x12a/0x1410 [ 65.453187][ T319] ? _raw_spin_unlock+0x24/0x40 [ 65.458027][ T319] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 65.463993][ T319] writeback_sb_inodes+0x515/0xdd0 [ 65.469099][ T319] ? __writeback_single_inode+0x1410/0x1410 [ 65.475001][ T319] __writeback_inodes_wb+0xc3/0x250 [ 65.480199][ T319] wb_writeback+0x910/0xd90 [ 65.484700][ T319] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 65.491457][ T319] ? cpumask_next+0x3c/0x40 [ 65.496035][ T319] ? get_nr_dirty_inodes+0xd6/0x130 [ 65.501223][ T319] wb_workfn+0x9d8/0x10d0 [ 65.505542][ T319] ? inode_wait_for_writeback+0x30/0x30 [ 65.511068][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 65.516516][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.522047][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.528020][ T319] process_one_work+0x965/0x16a0 [ 65.532952][ T319] ? lock_release+0x800/0x800 [ 65.537614][ T319] ? pwq_dec_nr_in_flight+0x310/0x310 [ 65.542982][ T319] ? rwlock_bug.part.0+0x90/0x90 [ 65.547918][ T319] worker_thread+0x96/0xe10 [ 65.552419][ T319] ? process_one_work+0x16a0/0x16a0 [ 65.557602][ T319] kthread+0x388/0x470 [ 65.561652][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 65.567376][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 65.573107][ T319] ret_from_fork+0x24/0x30 [ 65.577525][ T6827] CPU: 1 PID: 6827 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 65.585788][ T6827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.595944][ T6827] Call Trace: [ 65.599260][ T6827] dump_stack+0x188/0x20d [ 65.603613][ T6827] debug_smp_processor_id.cold+0x88/0x9b [ 65.609260][ T6827] ext4_mb_new_blocks+0xa77/0x3b30 [ 65.614433][ T6827] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.619900][ T6827] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 65.625636][ T6827] ext4_ext_map_blocks+0x2044/0x3410 [ 65.630940][ T6827] ? ext4_ext_release+0x10/0x10 [ 65.635830][ T6827] ? __down_timeout+0x2d0/0x2d0 [ 65.639949][ T319] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/319 [ 65.640712][ T6827] ? ext4_es_lookup_extent+0x41d/0xd30 [ 65.649897][ T319] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 65.655260][ T6827] ext4_map_blocks+0x4cb/0x1640 [ 65.665972][ T6827] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.671177][ T6827] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.676715][ T6827] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.682700][ T6827] ? prandom_u32_state+0xe/0x170 [ 65.687749][ T6827] ? __brelse+0x84/0xa0 [ 65.691891][ T6827] ? __ext4_new_inode+0x144/0x57c0 [ 65.696989][ T6827] ext4_getblk+0xad/0x520 [ 65.701394][ T6827] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 65.707105][ T6827] ? ext4_free_inode+0x17e0/0x17e0 [ 65.712204][ T6827] ext4_bread+0x7c/0x380 [ 65.716465][ T6827] ? ext4_getblk+0x520/0x520 [ 65.721057][ T6827] ? dqget+0xff0/0xff0 [ 65.725155][ T6827] ext4_append+0x153/0x360 [ 65.729569][ T6827] ext4_mkdir+0x5e0/0xdf0 [ 65.733902][ T6827] ? ext4_rmdir+0xde0/0xde0 [ 65.738497][ T6827] ? security_inode_permission+0xc4/0xf0 [ 65.744122][ T6827] vfs_mkdir+0x419/0x690 [ 65.748375][ T6827] do_mkdirat+0x21e/0x280 [ 65.752694][ T6827] ? __ia32_sys_mknod+0xb0/0xb0 [ 65.757567][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.763595][ T6827] ? do_syscall_64+0x21/0x7d0 [ 65.768267][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.774238][ T6827] do_syscall_64+0xf6/0x7d0 [ 65.778735][ T6827] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 65.784624][ T6827] RIP: 0033:0x45bee7 [ 65.788510][ T6827] 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 [ 65.808098][ T6827] RSP: 002b:00007ffdfdfb7248 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 65.816494][ T6827] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 65.824455][ T6827] RDX: 00007ffdfdfb7293 RSI: 00000000000001ff RDI: 00007ffdfdfb7290 [ 65.832425][ T6827] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 65.840477][ T6827] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 65.848433][ T6827] R13: 00007ffdfdfb7280 R14: 0000000000000000 R15: 00007ffdfdfb7290 [ 65.856411][ T319] CPU: 0 PID: 319 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 65.864416][ T319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.874529][ T319] Workqueue: writeback wb_workfn (flush-8:0) [ 65.880522][ T319] Call Trace: [ 65.883838][ T319] dump_stack+0x188/0x20d [ 65.888188][ T319] debug_smp_processor_id.cold+0x88/0x9b [ 65.893835][ T319] ext4_mb_new_blocks+0xa77/0x3b30 [ 65.898960][ T319] ? __kmalloc+0x62f/0x7a0 [ 65.903406][ T319] ? ext4_ext_search_right+0x2ca/0xb20 [ 65.908889][ T319] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 65.914721][ T319] ext4_ext_map_blocks+0x2044/0x3410 [ 65.920032][ T319] ? ext4_ext_release+0x10/0x10 [ 65.925014][ T319] ? __down_timeout+0x2d0/0x2d0 [ 65.929882][ T319] ? ext4_es_lookup_extent+0x41d/0xd30 [ 65.935353][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 65.940844][ T319] ext4_map_blocks+0x4cb/0x1640 [ 65.945733][ T319] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 65.950957][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 65.956448][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.962020][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.968026][ T319] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 65.973512][ T319] ext4_writepages+0x1ab7/0x3400 [ 65.978500][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 65.984156][ T319] ? __lock_acquire+0x2224/0x48a0 [ 65.989217][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 65.995589][ T319] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 66.002119][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 66.007778][ T319] ? do_writepages+0xfa/0x2a0 [ 66.012563][ T319] do_writepages+0xfa/0x2a0 [ 66.013113][ T6827] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6827 [ 66.017075][ T319] ? page_writeback_cpu_online+0x10/0x10 [ 66.026526][ T6827] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 66.032174][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 66.032197][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.032211][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.032227][ T319] ? lock_downgrade+0x840/0x840 [ 66.032249][ T319] __writeback_single_inode+0x12a/0x1410 [ 66.032269][ T319] ? _raw_spin_unlock+0x24/0x40 [ 66.070389][ T319] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 66.076382][ T319] writeback_sb_inodes+0x515/0xdd0 [ 66.081507][ T319] ? __writeback_single_inode+0x1410/0x1410 [ 66.087421][ T319] __writeback_inodes_wb+0xc3/0x250 [ 66.092617][ T319] wb_writeback+0x910/0xd90 [ 66.097137][ T319] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 66.103476][ T319] ? cpumask_next+0x3c/0x40 [ 66.107969][ T319] ? get_nr_dirty_inodes+0xd6/0x130 [ 66.113158][ T319] wb_workfn+0x9d8/0x10d0 [ 66.117500][ T319] ? inode_wait_for_writeback+0x30/0x30 [ 66.123047][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 66.128496][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.134028][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.139999][ T319] process_one_work+0x965/0x16a0 [ 66.144950][ T319] ? lock_release+0x800/0x800 [ 66.149626][ T319] ? pwq_dec_nr_in_flight+0x310/0x310 [ 66.154987][ T319] ? rwlock_bug.part.0+0x90/0x90 [ 66.159937][ T319] worker_thread+0x96/0xe10 [ 66.164515][ T319] ? process_one_work+0x16a0/0x16a0 [ 66.169714][ T319] kthread+0x388/0x470 [ 66.173770][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.179473][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.185193][ T319] ret_from_fork+0x24/0x30 [ 66.189613][ T6827] CPU: 1 PID: 6827 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 66.197867][ T6827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.207960][ T6827] Call Trace: [ 66.211267][ T6827] dump_stack+0x188/0x20d [ 66.214109][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 66.215607][ T6827] debug_smp_processor_id.cold+0x88/0x9b [ 66.215627][ T6827] ext4_mb_new_blocks+0xa77/0x3b30 [ 66.224835][ T1156] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 66.230379][ T6827] ? ext4_ext_search_right+0x2ca/0xb20 [ 66.230393][ T6827] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 66.230411][ T6827] ext4_ext_map_blocks+0x2044/0x3410 [ 66.230433][ T6827] ? ext4_ext_release+0x10/0x10 [ 66.230467][ T6827] ? __down_timeout+0x2d0/0x2d0 [ 66.230483][ T6827] ? ext4_es_lookup_extent+0x41d/0xd30 [ 66.273017][ T6827] ext4_map_blocks+0x4cb/0x1640 [ 66.277872][ T6827] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 66.283068][ T6827] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.288611][ T6827] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.294578][ T6827] ? prandom_u32_state+0xe/0x170 [ 66.299503][ T6827] ? __brelse+0x84/0xa0 [ 66.303658][ T6827] ? __ext4_new_inode+0x144/0x57c0 [ 66.308757][ T6827] ext4_getblk+0xad/0x520 [ 66.313075][ T6827] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 66.318783][ T6827] ? ext4_free_inode+0x17e0/0x17e0 [ 66.323896][ T6827] ext4_bread+0x7c/0x380 [ 66.328123][ T6827] ? ext4_getblk+0x520/0x520 [ 66.332715][ T6827] ? dqget+0xff0/0xff0 [ 66.336795][ T6827] ext4_append+0x153/0x360 [ 66.341199][ T6827] ext4_mkdir+0x5e0/0xdf0 [ 66.345521][ T6827] ? ext4_rmdir+0xde0/0xde0 [ 66.350048][ T6827] ? security_inode_permission+0xc4/0xf0 [ 66.355676][ T6827] vfs_mkdir+0x419/0x690 [ 66.360192][ T6827] do_mkdirat+0x21e/0x280 [ 66.364508][ T6827] ? __ia32_sys_mknod+0xb0/0xb0 [ 66.369346][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.375314][ T6827] ? do_syscall_64+0x21/0x7d0 [ 66.379991][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.385976][ T6827] do_syscall_64+0xf6/0x7d0 [ 66.390470][ T6827] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 66.396346][ T6827] RIP: 0033:0x45bee7 [ 66.400253][ T6827] 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 [ 66.419860][ T6827] RSP: 002b:00007ffdfdfb7248 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 66.428259][ T6827] RAX: ffffffffffffffda RBX: 00000000000101d6 RCX: 000000000045bee7 [ 66.436216][ T6827] RDX: 00007ffdfdfb7293 RSI: 00000000000001ff RDI: 00007ffdfdfb7290 [ 66.444187][ T6827] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 66.452246][ T6827] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 66.460227][ T6827] R13: 00007ffdfdfb7280 R14: 000000000001015b R15: 00007ffdfdfb7290 [ 66.468223][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 66.476129][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.486313][ T1156] Call Trace: [ 66.489619][ T1156] dump_stack+0x188/0x20d [ 66.493964][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 66.499613][ T1156] ext4_mb_new_blocks+0xa77/0x3b30 [ 66.504740][ T1156] ? __kmalloc+0x62f/0x7a0 [ 66.509185][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 66.514663][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 2020/06/14 05:46:20 building call list... [ 66.520400][ T1156] ext4_ext_map_blocks+0x2044/0x3410 [ 66.525694][ T1156] ? ext4_ext_release+0x10/0x10 [ 66.530735][ T1156] ? __down_timeout+0x2d0/0x2d0 [ 66.535589][ T1156] ? ext4_es_lookup_extent+0x41d/0xd30 [ 66.541059][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 66.546023][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 66.551238][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 66.556710][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.562364][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.568352][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 66.574018][ T1156] ext4_writepages+0x1ab7/0x3400 [ 66.578988][ T1156] ? mark_lock+0x30/0xdd0 [ 66.583333][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 66.589011][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 66.594677][ T1156] ? do_writepages+0xfa/0x2a0 [ 66.599478][ T1156] do_writepages+0xfa/0x2a0 [ 66.604005][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 66.609656][ T1156] ? do_raw_spin_lock+0x129/0x2e0 [ 66.614799][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 66.620086][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 66.624944][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 66.631035][ T1156] ? collapse_file+0x3575/0x4300 [ 66.635970][ T1156] ? delete_from_page_cache_batch+0xec0/0xec0 [ 66.642050][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 66.647272][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.653481][ T1156] collapse_file+0x357f/0x4300 [ 66.658801][ T1156] ? collapse_huge_page+0x4370/0x4370 [ 66.664174][ T1156] ? khugepaged+0x24fa/0x3f80 [ 66.669016][ T1156] khugepaged+0x3049/0x3f80 [ 66.673621][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 66.679256][ T1156] ? lock_downgrade+0x840/0x840 [ 66.684107][ T1156] ? finish_wait+0x260/0x260 [ 66.688894][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 66.694708][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.700781][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 66.707129][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 66.712937][ T1156] kthread+0x388/0x470 [ 66.721088][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.726804][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.732522][ T1156] ret_from_fork+0x24/0x30 [ 66.758234][ T319] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/319 [ 66.767566][ T319] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 66.773489][ T319] CPU: 1 PID: 319 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 66.781490][ T319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.791577][ T319] Workqueue: writeback wb_workfn (flush-8:0) [ 66.797668][ T319] Call Trace: [ 66.800982][ T319] dump_stack+0x188/0x20d [ 66.802648][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 66.805315][ T319] debug_smp_processor_id.cold+0x88/0x9b [ 66.814418][ T1156] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 66.819931][ T319] ext4_mb_new_blocks+0xa77/0x3b30 [ 66.819945][ T319] ? __kmalloc+0x62f/0x7a0 [ 66.819969][ T319] ? ext4_ext_search_right+0x2ca/0xb20 [ 66.819982][ T319] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 66.820003][ T319] ext4_ext_map_blocks+0x2044/0x3410 [ 66.820025][ T319] ? ext4_ext_release+0x10/0x10 [ 66.820057][ T319] ? __down_timeout+0x2d0/0x2d0 [ 66.862247][ T319] ? ext4_es_lookup_extent+0x41d/0xd30 [ 66.867696][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 66.873233][ T319] ext4_map_blocks+0x4cb/0x1640 [ 66.878074][ T319] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 66.883949][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 66.889401][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.895465][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.901431][ T319] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 66.906876][ T319] ext4_writepages+0x1ab7/0x3400 [ 66.912004][ T319] ? lockdep_hardirqs_on_prepare+0x580/0x590 [ 66.917980][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 66.923608][ T319] ? mark_held_locks+0x9f/0xe0 [ 66.928390][ T319] ? _raw_spin_unlock_irq+0x55/0x80 [ 66.934096][ T319] ? finish_task_switch+0x147/0x750 [ 66.939300][ T319] ? finish_task_switch+0x119/0x750 [ 66.944519][ T319] ? __ext4_mark_inode_dirty+0x950/0x950 [ 66.950417][ T319] ? do_writepages+0xfa/0x2a0 [ 66.955357][ T319] do_writepages+0xfa/0x2a0 [ 66.959995][ T319] ? page_writeback_cpu_online+0x10/0x10 [ 66.965634][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 66.971185][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 66.976908][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.982974][ T319] __writeback_single_inode+0x12a/0x1410 [ 66.988616][ T319] ? _raw_spin_unlock+0x36/0x40 [ 66.993542][ T319] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 66.999520][ T319] writeback_sb_inodes+0x515/0xdd0 [ 67.004632][ T319] ? __writeback_single_inode+0x1410/0x1410 [ 67.010662][ T319] __writeback_inodes_wb+0xc3/0x250 [ 67.017515][ T319] wb_writeback+0x910/0xd90 [ 67.022034][ T319] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 67.028370][ T319] ? cpumask_next+0x3c/0x40 [ 67.032860][ T319] ? get_nr_dirty_inodes+0xd6/0x130 [ 67.038061][ T319] wb_workfn+0x9d8/0x10d0 [ 67.042495][ T319] ? inode_wait_for_writeback+0x30/0x30 [ 67.048045][ T319] ? debug_smp_processor_id+0x2f/0x185 [ 67.053604][ T319] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 67.059314][ T319] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.065287][ T319] process_one_work+0x965/0x16a0 executing program [ 67.070229][ T319] ? lock_release+0x800/0x800 [ 67.075015][ T319] ? pwq_dec_nr_in_flight+0x310/0x310 [ 67.080381][ T319] ? rwlock_bug.part.0+0x90/0x90 [ 67.085315][ T319] worker_thread+0x96/0xe10 [ 67.089810][ T319] ? process_one_work+0x16a0/0x16a0 [ 67.095003][ T319] kthread+0x388/0x470 [ 67.099156][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 67.104870][ T319] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 67.110576][ T319] ret_from_fork+0x24/0x30 [ 67.115076][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 67.123102][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.133162][ T1156] Call Trace: [ 67.136479][ T1156] dump_stack+0x188/0x20d [ 67.140829][ T1156] debug_smp_processor_id.cold+0x88/0x9b [ 67.146587][ T1156] ext4_mb_new_blocks+0xa77/0x3b30 [ 67.151932][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 67.157516][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 67.163783][ T1156] ext4_ext_map_blocks+0x2044/0x3410 [ 67.169078][ T1156] ? ext4_ext_release+0x10/0x10 [ 67.174034][ T1156] ? __down_timeout+0x2d0/0x2d0 [ 67.178972][ T1156] ? ext4_es_lookup_extent+0x41d/0xd30 [ 67.184856][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 67.189725][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 67.194932][ T1156] ? debug_smp_processor_id+0x2f/0x185 [ 67.200428][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 67.206239][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.212220][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 67.217721][ T1156] ext4_writepages+0x1ab7/0x3400 [ 67.222668][ T1156] ? mark_lock+0x30/0xdd0 [ 67.227012][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 67.232672][ T1156] ? __ext4_mark_inode_dirty+0x950/0x950 [ 67.238326][ T1156] ? do_writepages+0xfa/0x2a0 [ 67.243001][ T1156] do_writepages+0xfa/0x2a0 [ 67.247535][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 67.253174][ T1156] ? do_raw_spin_lock+0x129/0x2e0 [ 67.258198][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 67.263397][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 67.268260][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 67.273984][ T1156] ? collapse_file+0x3575/0x4300 [ 67.279020][ T1156] ? delete_from_page_cache_batch+0xec0/0xec0 [ 67.285106][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 67.290307][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 67.296294][ T1156] collapse_file+0x357f/0x4300 [ 67.301093][ T1156] ? collapse_huge_page+0x4370/0x4370 [ 67.306472][ T1156] ? khugepaged+0x24fa/0x3f80 [ 67.311211][ T1156] khugepaged+0x3049/0x3f80 [ 67.315738][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 67.321370][ T1156] ? lock_downgrade+0x840/0x840 [ 67.326220][ T1156] ? finish_wait+0x260/0x260 [ 67.330816][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 67.336627][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 67.342622][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 67.347655][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 67.353290][ T1156] kthread+0x388/0x470 [ 67.357374][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 67.363096][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 67.368913][ T1156] ret_from_fork+0x24/0x30 [ 67.628427][ T263] tipc: TX() has been purged, node left! [ 68.836677][ T6823] can: request_module (can-proto-0) failed. [ 69.563202][ T6823] can: request_module (can-proto-0) failed. [ 69.575468][ T6823] can: request_module (can-proto-0) failed.