[ 57.673165][ T450] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:5/450 [ 57.682823][ T450] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.688775][ T450] CPU: 1 PID: 450 Comm: kworker/u4:5 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 57.698202][ T450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.708446][ T450] Workqueue: writeback wb_workfn (flush-8:0) [ 57.714417][ T450] Call Trace: [ 57.717695][ T450] dump_stack+0x18f/0x20d [ 57.722022][ T450] check_preemption_disabled+0x20d/0x220 [ 57.727632][ T450] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.732734][ T450] ? ext4_find_extent+0x81a/0xad0 [ 57.737738][ T450] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.743208][ T450] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.748924][ T450] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.754226][ T450] ? ext4_ext_release+0x10/0x10 [ 57.759068][ T450] ? down_write_killable+0x170/0x170 [ 57.764332][ T450] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.769784][ T450] ext4_map_blocks+0x4cb/0x1640 [ 57.775061][ T450] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.780250][ T450] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.785797][ T450] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.791752][ T450] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.797203][ T450] ext4_writepages+0x1a83/0x33c0 [ 57.802129][ T450] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.807763][ T450] ? __lock_acquire+0x2224/0x48b0 [ 57.812786][ T450] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.818756][ T450] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.824713][ T450] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.830334][ T450] ? do_writepages+0xf3/0x2a0 [ 57.835000][ T450] do_writepages+0xf3/0x2a0 [ 57.839488][ T450] ? page_writeback_cpu_online+0x10/0x10 [ 57.845116][ T450] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.850748][ T450] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.856709][ T450] ? lock_downgrade+0x840/0x840 [ 57.861549][ T450] __writeback_single_inode+0x12a/0x13d0 [ 57.867169][ T450] ? _raw_spin_unlock+0x24/0x40 [ 57.872002][ T450] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.877972][ T450] writeback_sb_inodes+0x515/0xdc0 [ 57.883161][ T450] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.889052][ T450] __writeback_inodes_wb+0xc3/0x250 [ 57.894235][ T450] wb_writeback+0x8c8/0xd40 [ 57.898734][ T450] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 57.905136][ T450] ? cpumask_next+0x3c/0x40 [ 57.909624][ T450] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.914803][ T450] wb_workfn+0xab3/0x1090 [ 57.919112][ T450] ? inode_wait_for_writeback+0x30/0x30 [ 57.924645][ T450] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.930179][ T450] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.936183][ T450] process_one_work+0x965/0x1690 [ 57.941105][ T450] ? lock_release+0x800/0x800 [ 57.945806][ T450] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.951197][ T450] ? rwlock_bug.part.0+0x90/0x90 [ 57.956148][ T450] worker_thread+0x96/0xe10 [ 57.960654][ T450] ? process_one_work+0x1690/0x1690 [ 57.965833][ T450] kthread+0x3b5/0x4a0 [ 57.969891][ T450] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.975589][ T450] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.981292][ T450] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.189' (ECDSA) to the list of known hosts. 2020/06/08 14:08:12 fuzzer started 2020/06/08 14:08:13 connecting to host at 10.128.0.26:39147 2020/06/08 14:08:13 checking machine... 2020/06/08 14:08:13 checking revisions... 2020/06/08 14:08:13 testing simple program... [ 60.587320][ T6792] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6792 [ 60.596577][ T6792] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.602539][ T6792] CPU: 0 PID: 6792 Comm: syz-fuzzer Not tainted 5.7.0-next-20200608-syzkaller #0 [ 60.611644][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.621684][ T6792] Call Trace: [ 60.624967][ T6792] dump_stack+0x18f/0x20d [ 60.629286][ T6792] check_preemption_disabled+0x20d/0x220 [ 60.634906][ T6792] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.640008][ T6792] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.645455][ T6792] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.651154][ T6792] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.656434][ T6792] ? ext4_ext_release+0x10/0x10 [ 60.661277][ T6792] ? down_write_killable+0x170/0x170 [ 60.666557][ T6792] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.671998][ T6792] ext4_map_blocks+0x4cb/0x1640 [ 60.676830][ T6792] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.682095][ T6792] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.687703][ T6792] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.693674][ T6792] ? prandom_u32_state+0xe/0x170 [ 60.698592][ T6792] ? __brelse+0x84/0xa0 [ 60.702743][ T6792] ? __ext4_new_inode+0x144/0x55e0 [ 60.707846][ T6792] ext4_getblk+0xad/0x520 [ 60.712178][ T6792] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.717883][ T6792] ? ext4_free_inode+0x1700/0x1700 [ 60.723078][ T6792] ext4_bread+0x7c/0x380 [ 60.727312][ T6792] ? ext4_getblk+0x520/0x520 [ 60.731881][ T6792] ? dquot_get_next_dqblk+0x180/0x180 [ 60.737488][ T6792] ext4_append+0x153/0x360 [ 60.741905][ T6792] ext4_mkdir+0x5e0/0xdf0 [ 60.746227][ T6792] ? ext4_rmdir+0xde0/0xde0 [ 60.750716][ T6792] ? security_inode_permission+0xc4/0xf0 [ 60.756510][ T6792] vfs_mkdir+0x419/0x690 [ 60.760737][ T6792] do_mkdirat+0x21e/0x280 [ 60.765073][ T6792] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.769903][ T6792] ? do_syscall_64+0x1c/0xe0 [ 60.774500][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.780462][ T6792] do_syscall_64+0x60/0xe0 [ 60.784859][ T6792] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.790728][ T6792] RIP: 0033:0x4b02a0 [ 60.794606][ T6792] Code: Bad RIP value. [ 60.798674][ T6792] RSP: 002b:000000c0000fb4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.807060][ T6792] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 60.815112][ T6792] RDX: 00000000000001c0 RSI: 000000c000026ec0 RDI: ffffffffffffff9c [ 60.823062][ T6792] RBP: 000000c0000fb510 R08: 0000000000000000 R09: 0000000000000000 [ 60.831010][ T6792] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.838959][ T6792] R13: 0000000000000077 R14: 0000000000000076 R15: 0000000000000100 [ 60.853425][ T6795] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6795 [ 60.862892][ T6795] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.868787][ T6795] CPU: 0 PID: 6795 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 60.879560][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.889614][ T6795] Call Trace: [ 60.892892][ T6795] dump_stack+0x18f/0x20d [ 60.897206][ T6795] check_preemption_disabled+0x20d/0x220 [ 60.903167][ T6795] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.908266][ T6795] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.913719][ T6795] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.919432][ T6795] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.924716][ T6795] ? ext4_ext_release+0x10/0x10 [ 60.929559][ T6795] ? down_write_killable+0x170/0x170 [ 60.934822][ T6795] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.940284][ T6795] ext4_map_blocks+0x4cb/0x1640 [ 60.945138][ T6795] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.950331][ T6795] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.955950][ T6795] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.961910][ T6795] ? prandom_u32_state+0xe/0x170 [ 60.966832][ T6795] ? __brelse+0x84/0xa0 [ 60.970967][ T6795] ? __ext4_new_inode+0x144/0x55e0 [ 60.976076][ T6795] ext4_getblk+0xad/0x520 [ 60.980387][ T6795] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.986088][ T6795] ? ext4_free_inode+0x1700/0x1700 [ 60.991176][ T6795] ext4_bread+0x7c/0x380 [ 60.995396][ T6795] ? ext4_getblk+0x520/0x520 [ 61.000051][ T6795] ? dquot_get_next_dqblk+0x180/0x180 [ 61.005407][ T6795] ext4_append+0x153/0x360 [ 61.009819][ T6795] ext4_mkdir+0x5e0/0xdf0 [ 61.014152][ T6795] ? ext4_rmdir+0xde0/0xde0 [ 61.018746][ T6795] ? security_inode_permission+0xc4/0xf0 [ 61.024373][ T6795] vfs_mkdir+0x419/0x690 [ 61.028594][ T6795] do_mkdirat+0x21e/0x280 [ 61.032927][ T6795] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.037847][ T6795] ? do_syscall_64+0x1c/0xe0 [ 61.042666][ T6795] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.049233][ T6795] do_syscall_64+0x60/0xe0 [ 61.054393][ T6795] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.060285][ T6795] RIP: 0033:0x45bee7 [ 61.064168][ T6795] Code: Bad RIP value. [ 61.068224][ T6795] RSP: 002b:00007ffe4f741a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 61.076617][ T6795] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 61.084831][ T6795] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe4f741c30 [ 61.092803][ T6795] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003180 [ 61.100751][ T6795] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 61.108714][ T6795] R13: 00007ffe4f741c30 R14: 8421084210842109 R15: 00007ffe4f741c3c [ 61.189887][ T6796] IPVS: ftp: loaded support on port[0] = 21 [ 61.226322][ T6796] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6796 [ 61.235789][ T6796] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.241755][ T6796] CPU: 1 PID: 6796 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 61.251298][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.261431][ T6796] Call Trace: [ 61.264725][ T6796] dump_stack+0x18f/0x20d [ 61.269037][ T6796] check_preemption_disabled+0x20d/0x220 [ 61.274666][ T6796] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.279780][ T6796] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.285218][ T6796] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.290916][ T6796] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.296207][ T6796] ? ext4_ext_release+0x10/0x10 [ 61.301066][ T6796] ? down_write_killable+0x170/0x170 [ 61.306338][ T6796] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.311924][ T6796] ext4_map_blocks+0x4cb/0x1640 [ 61.316756][ T6796] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.321932][ T6796] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.327474][ T6796] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.333473][ T6796] ? prandom_u32_state+0xe/0x170 [ 61.338529][ T6796] ? __brelse+0x84/0xa0 [ 61.342671][ T6796] ? __ext4_new_inode+0x144/0x55e0 [ 61.347787][ T6796] ext4_getblk+0xad/0x520 [ 61.352111][ T6796] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.360053][ T6796] ? ext4_free_inode+0x1700/0x1700 [ 61.366671][ T6796] ext4_bread+0x7c/0x380 [ 61.370932][ T6796] ? ext4_getblk+0x520/0x520 [ 61.375783][ T6796] ? dquot_get_next_dqblk+0x180/0x180 [ 61.381230][ T6796] ext4_append+0x153/0x360 [ 61.385631][ T6796] ext4_mkdir+0x5e0/0xdf0 [ 61.389948][ T6796] ? ext4_rmdir+0xde0/0xde0 [ 61.394468][ T6796] ? security_inode_permission+0xc4/0xf0 [ 61.400098][ T6796] vfs_mkdir+0x419/0x690 [ 61.404325][ T6796] do_mkdirat+0x21e/0x280 [ 61.408642][ T6796] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.413499][ T6796] ? do_syscall_64+0x1c/0xe0 [ 61.418083][ T6796] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.424044][ T6796] do_syscall_64+0x60/0xe0 [ 61.428558][ T6796] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.434443][ T6796] RIP: 0033:0x45bee7 [ 61.438344][ T6796] Code: Bad RIP value. [ 61.442458][ T6796] RSP: 002b:00007ffe4f741948 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.451554][ T6796] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 61.459625][ T6796] RDX: 00007ffe4f741993 RSI: 00000000000001ff RDI: 00007ffe4f741990 [ 61.467610][ T6796] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.475662][ T6796] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 61.483631][ T6796] R13: 00007ffe4f741980 R14: 0000000000000000 R15: 00007ffe4f741990 [ 61.533024][ T6796] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6796 [ 61.542487][ T6796] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.548388][ T6796] CPU: 0 PID: 6796 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 61.557846][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.568339][ T6796] Call Trace: [ 61.571641][ T6796] dump_stack+0x18f/0x20d [ 61.576081][ T6796] check_preemption_disabled+0x20d/0x220 [ 61.581725][ T6796] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.587638][ T6796] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.593238][ T6796] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.599057][ T6796] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.604478][ T6796] ? ext4_ext_release+0x10/0x10 [ 61.609324][ T6796] ? down_write_killable+0x170/0x170 [ 61.614593][ T6796] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.620052][ T6796] ext4_map_blocks+0x4cb/0x1640 [ 61.624897][ T6796] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.630073][ T6796] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.635598][ T6796] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.641555][ T6796] ? prandom_u32_state+0xe/0x170 [ 61.646469][ T6796] ? __brelse+0x84/0xa0 [ 61.650602][ T6796] ? __ext4_new_inode+0x144/0x55e0 [ 61.655727][ T6796] ext4_getblk+0xad/0x520 [ 61.660052][ T6796] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.666539][ T6796] ? ext4_free_inode+0x1700/0x1700 [ 61.671650][ T6796] ext4_bread+0x7c/0x380 [ 61.675888][ T6796] ? ext4_getblk+0x520/0x520 [ 61.680469][ T6796] ? dquot_get_next_dqblk+0x180/0x180 [ 61.685824][ T6796] ext4_append+0x153/0x360 [ 61.690237][ T6796] ext4_mkdir+0x5e0/0xdf0 [ 61.694568][ T6796] ? ext4_rmdir+0xde0/0xde0 [ 61.699079][ T6796] ? security_inode_permission+0xc4/0xf0 [ 61.704980][ T6796] vfs_mkdir+0x419/0x690 [ 61.709211][ T6796] do_mkdirat+0x21e/0x280 [ 61.713529][ T6796] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.718367][ T6796] ? do_syscall_64+0x1c/0xe0 [ 61.723062][ T6796] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.729039][ T6796] do_syscall_64+0x60/0xe0 [ 61.733444][ T6796] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.739334][ T6796] RIP: 0033:0x45bee7 [ 61.743219][ T6796] Code: Bad RIP value. [ 61.747263][ T6796] RSP: 002b:00007ffe4f741948 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.755666][ T6796] RAX: ffffffffffffffda RBX: 000000000000f04b RCX: 000000000045bee7 [ 61.763629][ T6796] RDX: 00007ffe4f741993 RSI: 00000000000001ff RDI: 00007ffe4f741990 [ 61.771578][ T6796] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.779555][ T6796] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 61.787533][ T6796] R13: 00007ffe4f741980 R14: 000000000000f03a R15: 00007ffe4f741990 2020/06/08 14:08:14 building call list... [ 62.031323][ T7] tipc: TX() has been purged, node left! [ 62.957886][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 62.967153][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.973159][ T1154] CPU: 1 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 62.982255][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.992302][ T1154] Call Trace: [ 62.995602][ T1154] dump_stack+0x18f/0x20d [ 62.999933][ T1154] check_preemption_disabled+0x20d/0x220 [ 63.005587][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.010783][ T1154] ? ext4_find_extent+0x81a/0xad0 [ 63.015812][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.021267][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.027421][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.032732][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.037600][ T1154] ? down_write_killable+0x170/0x170 [ 63.042880][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.048344][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.053200][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.058920][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.064464][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.070440][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.075896][ T1154] ext4_writepages+0x1a83/0x33c0 [ 63.080868][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.086515][ T1154] ? __lock_acquire+0x2224/0x48b0 [ 63.091562][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.097188][ T1154] ? do_writepages+0xf3/0x2a0 [ 63.101858][ T1154] do_writepages+0xf3/0x2a0 [ 63.106363][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.112008][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 63.117025][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.122221][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.127071][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.132791][ T1154] ? collapse_file+0x35a2/0x4330 [ 63.137724][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.143799][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.149021][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.155018][ T1154] collapse_file+0x35ac/0x4330 [ 63.159806][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 63.165187][ T1154] ? khugepaged+0x2506/0x3fc0 [ 63.169893][ T1154] khugepaged+0x3041/0x3fc0 [ 63.174422][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.180062][ T1154] ? lock_downgrade+0x840/0x840 [ 63.184927][ T1154] ? finish_wait+0x260/0x260 [ 63.189528][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.195346][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.201765][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.206894][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.212573][ T1154] kthread+0x3b5/0x4a0 [ 63.216654][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.222383][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.228139][ T1154] ret_from_fork+0x1f/0x30 [ 63.289919][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 63.299076][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.305072][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 63.314193][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.324245][ T1154] Call Trace: [ 63.327537][ T1154] dump_stack+0x18f/0x20d [ 63.331877][ T1154] check_preemption_disabled+0x20d/0x220 [ 63.337511][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.342772][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.348326][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.354486][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.360043][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.364938][ T1154] ? down_write_killable+0x170/0x170 [ 63.370225][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.375690][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.380548][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.385755][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.391303][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.397302][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.402765][ T1154] ext4_writepages+0x1a83/0x33c0 [ 63.407722][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.413348][ T1154] ? __lock_acquire+0x2224/0x48b0 [ 63.418921][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.424549][ T1154] ? do_writepages+0xf3/0x2a0 [ 63.429231][ T1154] do_writepages+0xf3/0x2a0 [ 63.433759][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.439397][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 63.444418][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.449759][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.454630][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.460369][ T1154] ? collapse_file+0x35a2/0x4330 [ 63.465327][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.471412][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.476877][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.482872][ T1154] collapse_file+0x35ac/0x4330 [ 63.488174][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 63.494190][ T1154] ? khugepaged+0x2506/0x3fc0 [ 63.498897][ T1154] khugepaged+0x3041/0x3fc0 [ 63.503439][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.509158][ T1154] ? lock_downgrade+0x840/0x840 [ 63.514009][ T1154] ? finish_wait+0x260/0x260 [ 63.518641][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.524444][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.530429][ T1154] ? __kthread_parkme+0x13f/0x1e0 executing program [ 63.535542][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.541614][ T1154] kthread+0x3b5/0x4a0 [ 63.545680][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.551392][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.557134][ T1154] ret_from_fork+0x1f/0x30 [ 63.638897][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 63.648173][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.654198][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 63.663299][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.673347][ T1154] Call Trace: [ 63.676648][ T1154] dump_stack+0x18f/0x20d [ 63.681089][ T1154] check_preemption_disabled+0x20d/0x220 [ 63.686728][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.691846][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.697302][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.703631][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.708922][ T1154] ? ext4_ext_release+0x10/0x10 [ 63.713788][ T1154] ? down_write_killable+0x170/0x170 [ 63.719072][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.725318][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 63.730175][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.735375][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.740916][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.746892][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.752369][ T1154] ext4_writepages+0x1a83/0x33c0 [ 63.757332][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.762960][ T1154] ? __lock_acquire+0x2224/0x48b0 [ 63.768013][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.773641][ T1154] ? do_writepages+0xf3/0x2a0 [ 63.778313][ T1154] do_writepages+0xf3/0x2a0 [ 63.782819][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 63.788454][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 63.793585][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 63.798783][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 63.803637][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.809352][ T1154] ? collapse_file+0x35a2/0x4330 [ 63.814288][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.820359][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.825550][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.831536][ T1154] collapse_file+0x35ac/0x4330 [ 63.840656][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 63.846026][ T1154] ? khugepaged+0x2506/0x3fc0 [ 63.850744][ T1154] khugepaged+0x3041/0x3fc0 [ 63.855272][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.860902][ T1154] ? lock_downgrade+0x840/0x840 [ 63.865749][ T1154] ? finish_wait+0x260/0x260 [ 63.870512][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.876313][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.882299][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 63.887333][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.892966][ T1154] kthread+0x3b5/0x4a0 [ 63.897029][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.902744][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.908469][ T1154] ret_from_fork+0x1f/0x30 [ 64.036246][ T6782] can: request_module (can-proto-0) failed. [ 64.515824][ T6782] can: request_module (can-proto-0) failed. [ 64.527453][ T6782] can: request_module (can-proto-0) failed.