[ 57.559984][ T4483] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/4483 [ 57.569239][ T4483] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.575304][ T4483] CPU: 1 PID: 4483 Comm: kworker/u4:6 Not tainted 5.7.0-syzkaller #0 [ 57.583931][ T4483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.594098][ T4483] Workqueue: writeback wb_workfn (flush-8:0) [ 57.600083][ T4483] Call Trace: [ 57.603385][ T4483] dump_stack+0x18f/0x20d [ 57.607702][ T4483] check_preemption_disabled+0x20d/0x220 [ 57.613508][ T4483] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.618602][ T4483] ? ext4_find_extent+0x81a/0xad0 [ 57.623647][ T4483] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.629268][ T4483] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.634995][ T4483] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.640310][ T4483] ? ext4_ext_release+0x10/0x10 [ 57.645166][ T4483] ? down_write_killable+0x170/0x170 [ 57.650433][ T4483] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.655969][ T4483] ext4_map_blocks+0x4cb/0x1640 [ 57.660836][ T4483] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.666034][ T4483] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.671571][ T4483] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.677553][ T4483] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.682996][ T4483] ext4_writepages+0x1a7b/0x33c0 [ 57.687935][ T4483] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.694156][ T4483] ? __lock_acquire+0x2224/0x48b0 [ 57.699240][ T4483] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.705212][ T4483] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.711189][ T4483] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.716808][ T4483] ? do_writepages+0xfa/0x2a0 [ 57.721908][ T4483] do_writepages+0xfa/0x2a0 [ 57.726567][ T4483] ? page_writeback_cpu_online+0x10/0x10 [ 57.732194][ T4483] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.737980][ T4483] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.743962][ T4483] ? lock_downgrade+0x840/0x840 [ 57.748817][ T4483] __writeback_single_inode+0x12a/0x13d0 [ 57.754485][ T4483] ? _raw_spin_unlock+0x24/0x40 [ 57.759407][ T4483] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.765381][ T4483] writeback_sb_inodes+0x515/0xdc0 [ 57.770476][ T4483] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.776366][ T4483] __writeback_inodes_wb+0xc3/0x250 [ 57.781545][ T4483] wb_writeback+0x8db/0xd50 [ 57.786034][ T4483] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.792436][ T4483] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.798492][ T4483] ? cpumask_next+0x3c/0x40 [ 57.803009][ T4483] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.808315][ T4483] wb_workfn+0xab3/0x1090 [ 57.813469][ T4483] ? inode_wait_for_writeback+0x30/0x30 [ 57.819017][ T4483] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.824588][ T4483] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.830687][ T4483] process_one_work+0x965/0x1690 [ 57.835776][ T4483] ? lock_release+0x800/0x800 [ 57.840453][ T4483] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.846249][ T4483] ? rwlock_bug.part.0+0x90/0x90 [ 57.851176][ T4483] worker_thread+0x96/0xe10 [ 57.855667][ T4483] ? process_one_work+0x1690/0x1690 [ 57.860988][ T4483] kthread+0x3b5/0x4a0 [ 57.865037][ T4483] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.870731][ T4483] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.876428][ T4483] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.1.54' (ECDSA) to the list of known hosts. 2020/06/13 18:13:09 fuzzer started 2020/06/13 18:13:09 connecting to host at 10.128.0.26:40025 2020/06/13 18:13:09 checking machine... 2020/06/13 18:13:09 checking revisions... 2020/06/13 18:13:09 testing simple program... [ 59.398968][ T6892] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6892 [ 59.408362][ T6892] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.414440][ T6892] CPU: 1 PID: 6892 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.422469][ T6892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.432523][ T6892] Call Trace: [ 59.435836][ T6892] dump_stack+0x18f/0x20d [ 59.440159][ T6892] check_preemption_disabled+0x20d/0x220 [ 59.445778][ T6892] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.450878][ T6892] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.456329][ T6892] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.462047][ T6892] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.467314][ T6892] ? ext4_ext_release+0x10/0x10 [ 59.472182][ T6892] ? down_write_killable+0x170/0x170 [ 59.477644][ T6892] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.483372][ T6892] ext4_map_blocks+0x4cb/0x1640 [ 59.488241][ T6892] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.493455][ T6892] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.498996][ T6892] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.505109][ T6892] ? prandom_u32_state+0xe/0x170 [ 59.510109][ T6892] ? __brelse+0x84/0xa0 [ 59.514258][ T6892] ? __ext4_new_inode+0x144/0x55e0 [ 59.519381][ T6892] ext4_getblk+0xad/0x520 [ 59.523736][ T6892] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.529455][ T6892] ? ext4_free_inode+0x1700/0x1700 [ 59.534568][ T6892] ext4_bread+0x7c/0x380 [ 59.538908][ T6892] ? ext4_getblk+0x520/0x520 [ 59.544875][ T6892] ? dquot_get_next_dqblk+0x180/0x180 [ 59.550288][ T6892] ext4_append+0x153/0x360 [ 59.554703][ T6892] ext4_mkdir+0x5e0/0xdf0 [ 59.559054][ T6892] ? ext4_rmdir+0xde0/0xde0 [ 59.563564][ T6892] ? security_inode_permission+0xc4/0xf0 [ 59.569531][ T6892] vfs_mkdir+0x419/0x690 [ 59.573759][ T6892] do_mkdirat+0x21e/0x280 [ 59.578065][ T6892] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.583148][ T6892] ? do_syscall_64+0x1c/0xe0 [ 59.587735][ T6892] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.593850][ T6892] do_syscall_64+0x60/0xe0 [ 59.598361][ T6892] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.604514][ T6892] RIP: 0033:0x4b02a0 [ 59.608415][ T6892] Code: Bad RIP value. [ 59.612916][ T6892] RSP: 002b:000000c0000cb4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.621575][ T6892] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.629528][ T6892] RDX: 00000000000001c0 RSI: 000000c0000ecf40 RDI: ffffffffffffff9c [ 59.637565][ T6892] RBP: 000000c0000cb510 R08: 0000000000000000 R09: 0000000000000000 [ 59.645807][ T6892] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.653801][ T6892] R13: 000000000000007b R14: 000000000000007a R15: 0000000000000100 [ 59.684100][ T6904] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6904 [ 59.694452][ T6904] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.700870][ T6904] CPU: 0 PID: 6904 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.709135][ T6904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.719424][ T6904] Call Trace: [ 59.722941][ T6904] dump_stack+0x18f/0x20d [ 59.727815][ T6904] check_preemption_disabled+0x20d/0x220 [ 59.733455][ T6904] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.738830][ T6904] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.744473][ T6904] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.750189][ T6904] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.755466][ T6904] ? ext4_ext_release+0x10/0x10 [ 59.760318][ T6904] ? down_write_killable+0x170/0x170 [ 59.765674][ T6904] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.771316][ T6904] ext4_map_blocks+0x4cb/0x1640 [ 59.776156][ T6904] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.781359][ T6904] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.786892][ T6904] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.793062][ T6904] ? prandom_u32_state+0xe/0x170 [ 59.798018][ T6904] ? __brelse+0x84/0xa0 [ 59.802163][ T6904] ? __ext4_new_inode+0x144/0x55e0 [ 59.807272][ T6904] ext4_getblk+0xad/0x520 [ 59.811826][ T6904] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.817546][ T6904] ? ext4_free_inode+0x1700/0x1700 [ 59.822696][ T6904] ext4_bread+0x7c/0x380 [ 59.826928][ T6904] ? ext4_getblk+0x520/0x520 [ 59.831523][ T6904] ? dquot_get_next_dqblk+0x180/0x180 [ 59.837326][ T6904] ext4_append+0x153/0x360 [ 59.841745][ T6904] ext4_mkdir+0x5e0/0xdf0 [ 59.846080][ T6904] ? ext4_rmdir+0xde0/0xde0 [ 59.850600][ T6904] ? security_inode_permission+0xc4/0xf0 [ 59.856756][ T6904] vfs_mkdir+0x419/0x690 [ 59.861010][ T6904] do_mkdirat+0x21e/0x280 [ 59.865328][ T6904] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.870173][ T6904] ? do_syscall_64+0x1c/0xe0 [ 59.874748][ T6904] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.880887][ T6904] do_syscall_64+0x60/0xe0 [ 59.885840][ T6904] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.891989][ T6904] RIP: 0033:0x45bee7 [ 59.895871][ T6904] Code: Bad RIP value. [ 59.899919][ T6904] RSP: 002b:00007ffc3dc02e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.908319][ T6904] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.916275][ T6904] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffc3dc02fe0 [ 59.924379][ T6904] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000003480 [ 59.932408][ T6904] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.940422][ T6904] R13: 00007ffc3dc02fe0 R14: 8421084210842109 R15: 00007ffc3dc02fec [ 60.025383][ T6905] IPVS: ftp: loaded support on port[0] = 21 [ 60.063581][ T6905] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6905 [ 60.073222][ T6905] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.079501][ T6905] CPU: 1 PID: 6905 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.087752][ T6905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.098010][ T6905] Call Trace: [ 60.101318][ T6905] dump_stack+0x18f/0x20d [ 60.105641][ T6905] check_preemption_disabled+0x20d/0x220 [ 60.111260][ T6905] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.116694][ T6905] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.122147][ T6905] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.128070][ T6905] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.133368][ T6905] ? ext4_ext_release+0x10/0x10 [ 60.138220][ T6905] ? down_write_killable+0x170/0x170 [ 60.143724][ T6905] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.149285][ T6905] ext4_map_blocks+0x4cb/0x1640 [ 60.154628][ T6905] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.159827][ T6905] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.165635][ T6905] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.171703][ T6905] ? prandom_u32_state+0xe/0x170 [ 60.176991][ T6905] ? __brelse+0x84/0xa0 [ 60.181139][ T6905] ? __ext4_new_inode+0x144/0x55e0 [ 60.186268][ T6905] ext4_getblk+0xad/0x520 [ 60.190741][ T6905] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.196466][ T6905] ? ext4_free_inode+0x1700/0x1700 [ 60.201683][ T6905] ext4_bread+0x7c/0x380 [ 60.205920][ T6905] ? ext4_getblk+0x520/0x520 [ 60.210763][ T6905] ? dquot_get_next_dqblk+0x180/0x180 [ 60.216943][ T6905] ext4_append+0x153/0x360 [ 60.221380][ T6905] ext4_mkdir+0x5e0/0xdf0 [ 60.225698][ T6905] ? ext4_rmdir+0xde0/0xde0 [ 60.230181][ T6905] ? security_inode_permission+0xc4/0xf0 [ 60.235818][ T6905] vfs_mkdir+0x419/0x690 [ 60.240402][ T6905] do_mkdirat+0x21e/0x280 [ 60.245030][ T6905] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.249974][ T6905] ? do_syscall_64+0x1c/0xe0 [ 60.254581][ T6905] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.260552][ T6905] do_syscall_64+0x60/0xe0 [ 60.264952][ T6905] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.270822][ T6905] RIP: 0033:0x45bee7 [ 60.274689][ T6905] Code: Bad RIP value. [ 60.278810][ T6905] RSP: 002b:0000000000c9ffa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.287226][ T6905] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.295201][ T6905] RDX: 0000000000000006 RSI: 00000000000001ff RDI: 00000000004c26e2 [ 60.303164][ T6905] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 60.311151][ T6905] R10: 0000000000000064 R11: 0000000000000246 R12: 00000000004185d0 2020/06/13 18:13:10 building call list... [ 60.319124][ T6905] R13: 00007ffc3dc03168 R14: 0000000000000000 R15: 0000000000000000 [ 60.629635][ T7] tipc: TX() has been purged, node left! executing program [ 62.186843][ T6889] can: request_module (can-proto-0) failed. [ 62.644144][ T6889] can: request_module (can-proto-0) failed. [ 62.656384][ T6889] can: request_module (can-proto-0) failed. [ 62.924086][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 62.933451][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.939630][ T1153] CPU: 0 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.947540][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.957628][ T1153] Call Trace: [ 62.960914][ T1153] dump_stack+0x18f/0x20d [ 62.965443][ T1153] check_preemption_disabled+0x20d/0x220 [ 62.971060][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.976163][ T1153] ? ext4_find_extent+0x81a/0xad0 [ 62.981190][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.986774][ T1153] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.992769][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.998056][ T1153] ? ext4_ext_release+0x10/0x10 [ 63.002902][ T1153] ? down_write_killable+0x170/0x170 [ 63.008162][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.013621][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 63.018488][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.023690][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.029340][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.035491][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.040941][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 63.045867][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.051514][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.057131][ T1153] ? do_writepages+0xfa/0x2a0 [ 63.061785][ T1153] do_writepages+0xfa/0x2a0 [ 63.066287][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 63.071895][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 63.076922][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 63.082179][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 63.087017][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.092734][ T1153] ? collapse_file+0x35a2/0x4330 [ 63.097703][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.103777][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.109119][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.115108][ T1153] collapse_file+0x35ac/0x4330 [ 63.120352][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 63.125743][ T1153] ? khugepaged+0x2506/0x3fc0 [ 63.130418][ T1153] ? xas_find+0x31a/0x880 [ 63.134732][ T1153] ? check_preemption_disabled+0x38/0x220 [ 63.140738][ T1153] khugepaged+0x3041/0x3fc0 [ 63.145250][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.150870][ T1153] ? lock_downgrade+0x840/0x840 [ 63.155793][ T1153] ? finish_wait+0x260/0x260 [ 63.160627][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.166441][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.172449][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 63.177453][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.183246][ T1153] kthread+0x3b5/0x4a0 [ 63.187735][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.193431][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.199225][ T1153] ret_from_fork+0x1f/0x30 [ 63.265461][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 63.274810][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.280792][ T1153] CPU: 0 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.289026][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.299063][ T1153] Call Trace: [ 63.302509][ T1153] dump_stack+0x18f/0x20d [ 63.306843][ T1153] check_preemption_disabled+0x20d/0x220 [ 63.312482][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.317582][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.323044][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.329217][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.334488][ T1153] ? ext4_ext_release+0x10/0x10 [ 63.339484][ T1153] ? down_write_killable+0x170/0x170 [ 63.345537][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.351164][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 63.356148][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.361347][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.367024][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.373001][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.378445][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 63.383392][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.389034][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.394673][ T1153] ? do_writepages+0xfa/0x2a0 [ 63.399524][ T1153] do_writepages+0xfa/0x2a0 [ 63.404036][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 63.409685][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 63.414776][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 63.420095][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 63.424939][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.430832][ T1153] ? collapse_file+0x35a2/0x4330 [ 63.435994][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.442519][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.447730][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.453717][ T1153] collapse_file+0x35ac/0x4330 [ 63.458505][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 63.464030][ T1153] ? khugepaged+0x2506/0x3fc0 [ 63.468696][ T1153] ? xas_find+0x31a/0x880 [ 63.473007][ T1153] ? check_preemption_disabled+0x38/0x220 [ 63.478713][ T1153] khugepaged+0x3041/0x3fc0 [ 63.483209][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.489016][ T1153] ? lock_downgrade+0x840/0x840 [ 63.493868][ T1153] ? finish_wait+0x260/0x260 [ 63.498560][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.504354][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.510335][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 63.515376][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.521411][ T1153] kthread+0x3b5/0x4a0 [ 63.525547][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.531258][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.536974][ T1153] ret_from_fork+0x1f/0x30 [ 63.585577][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 63.595237][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.602196][ T1153] CPU: 0 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.610526][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.620617][ T1153] Call Trace: [ 63.623920][ T1153] dump_stack+0x18f/0x20d [ 63.628261][ T1153] check_preemption_disabled+0x20d/0x220 [ 63.633906][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.639042][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.644525][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.650700][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.656034][ T1153] ? ext4_ext_release+0x10/0x10 [ 63.660912][ T1153] ? down_write_killable+0x170/0x170 [ 63.666482][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.672196][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 63.677161][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.682380][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.688072][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.694058][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.699519][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 63.704452][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.710092][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.715729][ T1153] ? do_writepages+0xfa/0x2a0 [ 63.720393][ T1153] do_writepages+0xfa/0x2a0 [ 63.724918][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 63.730530][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 63.735530][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 63.740845][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 63.745830][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.751653][ T1153] ? collapse_file+0x35a2/0x4330 [ 63.756575][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.762629][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.767830][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.773830][ T1153] collapse_file+0x35ac/0x4330 [ 63.778583][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 63.783929][ T1153] ? khugepaged+0x2506/0x3fc0 [ 63.788608][ T1153] ? xas_find+0x31a/0x880 [ 63.792931][ T1153] ? check_preemption_disabled+0x38/0x220 [ 63.798634][ T1153] khugepaged+0x3041/0x3fc0 [ 63.803128][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.808762][ T1153] ? lock_downgrade+0x840/0x840 [ 63.813598][ T1153] ? finish_wait+0x260/0x260 [ 63.818238][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.824995][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.830973][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 63.8