[ 53.307881][ T6731] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.313913][ T6731] RIP: 0033:0x7fedd1245687 [ 53.318306][ T6731] Code: Bad RIP value. [ 53.322353][ T6731] RSP: 002b:00007fffcdc6c808 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.330761][ T6731] RAX: ffffffffffffffda RBX: 000055567489f985 RCX: 00007fedd1245687 [ 53.338710][ T6731] RDX: 00007fffcdc6c6d0 RSI: 00000000000001ed RDI: 000055567489f985 [ 53.346677][ T6731] RBP: 00007fedd1245680 R08: 0000000000000100 R09: 0000000000000000 [ 53.354637][ T6731] R10: 000055567489f980 R11: 0000000000000246 R12: 00000000000001ed [ 53.362592][ T6731] R13: 00007fffcdc6c990 R14: 0000000000000000 R15: 0000000000000000 Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.547558][ T26] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:2/26 [ 56.556718][ T26] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.563077][ T26] CPU: 0 PID: 26 Comm: kworker/u4:2 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 56.572184][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.582229][ T26] Workqueue: writeback wb_workfn (flush-8:0) [ 56.588183][ T26] Call Trace: [ 56.591482][ T26] dump_stack+0x18f/0x20d [ 56.595812][ T26] check_preemption_disabled+0x20d/0x220 [ 56.601442][ T26] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.606533][ T26] ? ext4_find_extent+0x81a/0xad0 [ 56.611549][ T26] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.616984][ T26] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.622688][ T26] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.627969][ T26] ? ext4_ext_release+0x10/0x10 [ 56.632824][ T26] ? down_write_killable+0x170/0x170 [ 56.638123][ T26] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.643570][ T26] ext4_map_blocks+0x4cb/0x1640 [ 56.648424][ T26] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.653609][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.659155][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.665139][ T26] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.670583][ T26] ext4_writepages+0x1a83/0x33c0 [ 56.675531][ T26] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.681229][ T26] ? __lock_acquire+0x2224/0x48b0 [ 56.686253][ T26] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.692213][ T26] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.698189][ T26] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.703797][ T26] ? do_writepages+0xf3/0x2a0 [ 56.708555][ T26] do_writepages+0xf3/0x2a0 [ 56.713057][ T26] ? page_writeback_cpu_online+0x10/0x10 [ 56.718688][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.724226][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.730183][ T26] ? lock_downgrade+0x840/0x840 [ 56.735016][ T26] __writeback_single_inode+0x12a/0x13d0 [ 56.740645][ T26] ? _raw_spin_unlock+0x24/0x40 [ 56.745502][ T26] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.751478][ T26] writeback_sb_inodes+0x515/0xdc0 [ 56.756610][ T26] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.762503][ T26] __writeback_inodes_wb+0xc3/0x250 [ 56.767703][ T26] wb_writeback+0x8c8/0xd40 [ 56.772190][ T26] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 56.778561][ T26] ? cpumask_next+0x3c/0x40 [ 56.783087][ T26] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.788274][ T26] wb_workfn+0xab3/0x1090 [ 56.792711][ T26] ? inode_wait_for_writeback+0x30/0x30 [ 56.798344][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.803881][ T26] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.809847][ T26] process_one_work+0x965/0x1690 [ 56.814782][ T26] ? lock_release+0x800/0x800 [ 56.819610][ T26] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.824965][ T26] ? rwlock_bug.part.0+0x90/0x90 [ 56.829917][ T26] worker_thread+0x96/0xe10 [ 56.834404][ T26] ? process_one_work+0x1690/0x1690 [ 56.839597][ T26] kthread+0x3b5/0x4a0 [ 56.843648][ T26] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.849357][ T26] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.855076][ T26] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.232' (ECDSA) to the list of known hosts. 2020/06/09 02:11:57 fuzzer started 2020/06/09 02:11:57 connecting to host at 10.128.0.26:45449 2020/06/09 02:11:57 checking machine... 2020/06/09 02:11:57 checking revisions... 2020/06/09 02:11:57 testing simple program... [ 59.084256][ T6788] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6788 [ 59.093367][ T6788] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.099633][ T6788] CPU: 0 PID: 6788 Comm: syz-fuzzer Not tainted 5.7.0-next-20200608-syzkaller #0 [ 59.108781][ T6788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.118812][ T6788] Call Trace: [ 59.122087][ T6788] dump_stack+0x18f/0x20d [ 59.126397][ T6788] check_preemption_disabled+0x20d/0x220 [ 59.132027][ T6788] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.137136][ T6788] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.142570][ T6788] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.148380][ T6788] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.153697][ T6788] ? ext4_ext_release+0x10/0x10 [ 59.158541][ T6788] ? down_write_killable+0x170/0x170 [ 59.163813][ T6788] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.169354][ T6788] ext4_map_blocks+0x4cb/0x1640 [ 59.174319][ T6788] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.179516][ T6788] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.185047][ T6788] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.191009][ T6788] ? prandom_u32_state+0xe/0x170 [ 59.195934][ T6788] ? __brelse+0x84/0xa0 [ 59.200070][ T6788] ? __ext4_new_inode+0x144/0x55e0 [ 59.205158][ T6788] ext4_getblk+0xad/0x520 [ 59.209483][ T6788] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.215182][ T6788] ? ext4_free_inode+0x1700/0x1700 [ 59.220273][ T6788] ext4_bread+0x7c/0x380 [ 59.224497][ T6788] ? ext4_getblk+0x520/0x520 [ 59.229140][ T6788] ? dquot_get_next_dqblk+0x180/0x180 [ 59.234513][ T6788] ext4_append+0x153/0x360 [ 59.238921][ T6788] ext4_mkdir+0x5e0/0xdf0 [ 59.243237][ T6788] ? ext4_rmdir+0xde0/0xde0 [ 59.247732][ T6788] ? security_inode_permission+0xc4/0xf0 [ 59.253363][ T6788] vfs_mkdir+0x419/0x690 [ 59.257603][ T6788] do_mkdirat+0x21e/0x280 [ 59.261919][ T6788] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.266749][ T6788] ? do_syscall_64+0x1c/0xe0 [ 59.271347][ T6788] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.277322][ T6788] do_syscall_64+0x60/0xe0 [ 59.281757][ T6788] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.287633][ T6788] RIP: 0033:0x4b02a0 [ 59.291502][ T6788] Code: Bad RIP value. [ 59.295718][ T6788] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.304121][ T6788] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.312070][ T6788] RDX: 00000000000001c0 RSI: 000000c000026d40 RDI: ffffffffffffff9c [ 59.320018][ T6788] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 59.329716][ T6788] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.337690][ T6788] R13: 000000000000006b R14: 000000000000006a R15: 0000000000000100 [ 59.362019][ T6804] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6804 [ 59.371596][ T6804] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.377548][ T6804] CPU: 1 PID: 6804 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 59.387002][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.397037][ T6804] Call Trace: [ 59.400310][ T6804] dump_stack+0x18f/0x20d [ 59.404641][ T6804] check_preemption_disabled+0x20d/0x220 [ 59.410314][ T6804] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.415415][ T6804] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.420880][ T6804] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.426619][ T6804] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.431902][ T6804] ? ext4_ext_release+0x10/0x10 [ 59.436746][ T6804] ? down_write_killable+0x170/0x170 [ 59.442011][ T6804] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.447454][ T6804] ext4_map_blocks+0x4cb/0x1640 [ 59.452304][ T6804] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.457482][ T6804] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.463005][ T6804] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.469052][ T6804] ? prandom_u32_state+0xe/0x170 [ 59.473970][ T6804] ? __brelse+0x84/0xa0 [ 59.478105][ T6804] ? __ext4_new_inode+0x144/0x55e0 [ 59.483194][ T6804] ext4_getblk+0xad/0x520 [ 59.487515][ T6804] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.493236][ T6804] ? ext4_free_inode+0x1700/0x1700 [ 59.498325][ T6804] ext4_bread+0x7c/0x380 [ 59.502543][ T6804] ? ext4_getblk+0x520/0x520 [ 59.507130][ T6804] ? dquot_get_next_dqblk+0x180/0x180 [ 59.512483][ T6804] ext4_append+0x153/0x360 [ 59.516892][ T6804] ext4_mkdir+0x5e0/0xdf0 [ 59.521209][ T6804] ? ext4_rmdir+0xde0/0xde0 [ 59.525704][ T6804] ? security_inode_permission+0xc4/0xf0 [ 59.531338][ T6804] vfs_mkdir+0x419/0x690 [ 59.535574][ T6804] do_mkdirat+0x21e/0x280 [ 59.539911][ T6804] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.544935][ T6804] ? do_syscall_64+0x1c/0xe0 [ 59.549507][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.555481][ T6804] do_syscall_64+0x60/0xe0 [ 59.559902][ T6804] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.565770][ T6804] RIP: 0033:0x45bee7 [ 59.569639][ T6804] Code: Bad RIP value. [ 59.573693][ T6804] RSP: 002b:00007ffc30a92fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.582092][ T6804] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.590056][ T6804] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc30a93180 [ 59.598028][ T6804] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002900 [ 59.605977][ T6804] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.613928][ T6804] R13: 00007ffc30a93180 R14: 8421084210842109 R15: 00007ffc30a9318c [ 59.695425][ T6805] IPVS: ftp: loaded support on port[0] = 21 [ 59.730762][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6805 [ 59.740220][ T6805] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.746108][ T6805] CPU: 0 PID: 6805 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 59.755544][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.765597][ T6805] Call Trace: [ 59.768873][ T6805] dump_stack+0x18f/0x20d [ 59.773202][ T6805] check_preemption_disabled+0x20d/0x220 [ 59.778816][ T6805] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.783929][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.789377][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.795075][ T6805] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.800370][ T6805] ? ext4_ext_release+0x10/0x10 [ 59.805227][ T6805] ? down_write_killable+0x170/0x170 [ 59.810489][ T6805] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.815933][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 59.820883][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.826061][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.831597][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.837552][ T6805] ? prandom_u32_state+0xe/0x170 [ 59.842469][ T6805] ? __brelse+0x84/0xa0 [ 59.846620][ T6805] ? __ext4_new_inode+0x144/0x55e0 [ 59.851724][ T6805] ext4_getblk+0xad/0x520 [ 59.856032][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.861734][ T6805] ? ext4_free_inode+0x1700/0x1700 [ 59.866823][ T6805] ext4_bread+0x7c/0x380 [ 59.871064][ T6805] ? ext4_getblk+0x520/0x520 [ 59.875630][ T6805] ? dquot_get_next_dqblk+0x180/0x180 [ 59.880983][ T6805] ext4_append+0x153/0x360 [ 59.885380][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 59.889691][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 59.894173][ T6805] ? security_inode_permission+0xc4/0xf0 [ 59.899786][ T6805] vfs_mkdir+0x419/0x690 [ 59.904025][ T6805] do_mkdirat+0x21e/0x280 [ 59.908362][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.913191][ T6805] ? do_syscall_64+0x1c/0xe0 [ 59.917758][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.923903][ T6805] do_syscall_64+0x60/0xe0 [ 59.928307][ T6805] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.934195][ T6805] RIP: 0033:0x45bee7 [ 59.938063][ T6805] Code: Bad RIP value. [ 59.942104][ T6805] RSP: 002b:00007ffc30a92e98 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.950510][ T6805] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.958551][ T6805] RDX: 00007ffc30a92ee3 RSI: 00000000000001ff RDI: 00007ffc30a92ee0 [ 59.966502][ T6805] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.974452][ T6805] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.982417][ T6805] R13: 00007ffc30a92ed0 R14: 0000000000000000 R15: 00007ffc30a92ee0 [ 60.031715][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6805 [ 60.041190][ T6805] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.047085][ T6805] CPU: 0 PID: 6805 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 60.056532][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.066580][ T6805] Call Trace: [ 60.069874][ T6805] dump_stack+0x18f/0x20d [ 60.074327][ T6805] check_preemption_disabled+0x20d/0x220 [ 60.079964][ T6805] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.085110][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.090575][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.096392][ T6805] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.101712][ T6805] ? ext4_ext_release+0x10/0x10 [ 60.106588][ T6805] ? down_write_killable+0x170/0x170 [ 60.111873][ T6805] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.117331][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 60.122172][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.127348][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.132886][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.138855][ T6805] ? prandom_u32_state+0xe/0x170 [ 60.143794][ T6805] ? __brelse+0x84/0xa0 [ 60.147933][ T6805] ? __ext4_new_inode+0x144/0x55e0 [ 60.153042][ T6805] ext4_getblk+0xad/0x520 [ 60.157358][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.163212][ T6805] ? ext4_free_inode+0x1700/0x1700 [ 60.168319][ T6805] ext4_bread+0x7c/0x380 [ 60.172559][ T6805] ? ext4_getblk+0x520/0x520 [ 60.177132][ T6805] ? dquot_get_next_dqblk+0x180/0x180 [ 60.182494][ T6805] ext4_append+0x153/0x360 [ 60.186912][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 60.191242][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 60.196091][ T6805] ? security_inode_permission+0xc4/0xf0 [ 60.201772][ T6805] vfs_mkdir+0x419/0x690 [ 60.206004][ T6805] do_mkdirat+0x21e/0x280 [ 60.210317][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.215149][ T6805] ? do_syscall_64+0x1c/0xe0 [ 60.219718][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.225679][ T6805] do_syscall_64+0x60/0xe0 [ 60.230080][ T6805] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.235947][ T6805] RIP: 0033:0x45bee7 [ 60.239835][ T6805] Code: Bad RIP value. [ 60.243890][ T6805] RSP: 002b:00007ffc30a92e98 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.252275][ T6805] RAX: ffffffffffffffda RBX: 000000000000ea74 RCX: 000000000045bee7 [ 60.260223][ T6805] RDX: 00007ffc30a92ee3 RSI: 00000000000001ff RDI: 00007ffc30a92ee0 [ 60.268194][ T6805] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 2020/06/09 02:11:59 building call list... [ 60.276157][ T6805] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.284123][ T6805] R13: 00007ffc30a92ed0 R14: 000000000000ea70 R15: 00007ffc30a92ee0 [ 60.497515][ T26] tipc: TX() has been purged, node left! executing program [ 61.909368][ T315] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/315 [ 61.918604][ T315] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.924499][ T315] CPU: 0 PID: 315 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 61.933703][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.943789][ T315] Workqueue: writeback wb_workfn (flush-8:0) [ 61.949760][ T315] Call Trace: [ 61.953053][ T315] dump_stack+0x18f/0x20d [ 61.957384][ T315] check_preemption_disabled+0x20d/0x220 [ 61.963016][ T315] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.968126][ T315] ? ext4_find_extent+0x81a/0xad0 [ 61.973155][ T315] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.978610][ T315] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.984336][ T315] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.989626][ T315] ? ext4_ext_release+0x10/0x10 [ 61.994495][ T315] ? down_write_killable+0x170/0x170 [ 61.999780][ T315] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.005240][ T315] ext4_map_blocks+0x4cb/0x1640 [ 62.010097][ T315] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.015298][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.020844][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.026820][ T315] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.032276][ T315] ext4_writepages+0x1a83/0x33c0 [ 62.037230][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.042861][ T315] ? __lock_acquire+0x2224/0x48b0 [ 62.047909][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.053908][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.059884][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.065515][ T315] ? do_writepages+0xf3/0x2a0 [ 62.070211][ T315] do_writepages+0xf3/0x2a0 [ 62.074717][ T315] ? page_writeback_cpu_online+0x10/0x10 [ 62.080383][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.085921][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.092348][ T315] ? lock_downgrade+0x840/0x840 [ 62.097199][ T315] __writeback_single_inode+0x12a/0x13d0 [ 62.102828][ T315] ? _raw_spin_unlock+0x24/0x40 [ 62.107674][ T315] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 62.113651][ T315] writeback_sb_inodes+0x515/0xdc0 [ 62.118771][ T315] ? __writeback_single_inode+0x13d0/0x13d0 [ 62.124680][ T315] __writeback_inodes_wb+0xc3/0x250 [ 62.129886][ T315] wb_writeback+0x8c8/0xd40 [ 62.134405][ T315] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 62.140754][ T315] ? cpumask_next+0x3c/0x40 [ 62.145252][ T315] ? get_nr_dirty_inodes+0xd6/0x130 [ 62.150455][ T315] wb_workfn+0x9bc/0x1090 [ 62.154805][ T315] ? inode_wait_for_writeback+0x30/0x30 [ 62.160355][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.165895][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.171877][ T315] process_one_work+0x965/0x1690 [ 62.176822][ T315] ? lock_release+0x800/0x800 [ 62.181499][ T315] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.186868][ T315] ? rwlock_bug.part.0+0x90/0x90 [ 62.191904][ T315] worker_thread+0x96/0xe10 [ 62.196414][ T315] ? process_one_work+0x1690/0x1690 [ 62.201617][ T315] kthread+0x3b5/0x4a0 [ 62.205678][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.212865][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.218582][ T315] ret_from_fork+0x1f/0x30 [ 62.266987][ T6788] can: request_module (can-proto-0) failed. [ 62.285090][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 62.294364][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.300811][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 62.309920][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.319969][ T1155] Call Trace: [ 62.323272][ T1155] dump_stack+0x18f/0x20d [ 62.327605][ T1155] check_preemption_disabled+0x20d/0x220 [ 62.333238][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.338341][ T1155] ? ext4_find_extent+0x81a/0xad0 [ 62.343376][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.348831][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.352333][ T315] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/315 [ 62.354587][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.363880][ T315] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.369004][ T1155] ? ext4_ext_release+0x10/0x10 [ 62.369043][ T1155] ? down_write_killable+0x170/0x170 [ 62.385279][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.390738][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 62.395592][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.400786][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.406317][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.412330][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.417797][ T1155] ext4_writepages+0x1a83/0x33c0 [ 62.422742][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.428375][ T1155] ? __lock_acquire+0x2224/0x48b0 [ 62.433404][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.439023][ T1155] ? do_writepages+0xf3/0x2a0 [ 62.443692][ T1155] do_writepages+0xf3/0x2a0 [ 62.448184][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 62.453808][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 62.458813][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 62.463993][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 62.468841][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.474546][ T1155] ? collapse_file+0x35a2/0x4330 [ 62.479463][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.485531][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.490727][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.496711][ T1155] collapse_file+0x35ac/0x4330 [ 62.501479][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 62.506870][ T1155] ? khugepaged+0x2506/0x3fc0 [ 62.511548][ T1155] ? xas_find+0x31a/0x880 [ 62.516239][ T1155] ? check_preemption_disabled+0x38/0x220 [ 62.522110][ T1155] khugepaged+0x3041/0x3fc0 [ 62.527199][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.532831][ T1155] ? lock_downgrade+0x840/0x840 [ 62.537753][ T1155] ? finish_wait+0x260/0x260 [ 62.545738][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.551571][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.557809][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 62.562993][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.568869][ T1155] kthread+0x3b5/0x4a0 [ 62.572921][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.578619][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.584330][ T1155] ret_from_fork+0x1f/0x30 [ 62.588743][ T315] CPU: 1 PID: 315 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 62.598201][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.608273][ T315] Workqueue: writeback wb_workfn (flush-8:0) [ 62.614256][ T315] Call Trace: [ 62.617552][ T315] dump_stack+0x18f/0x20d [ 62.621891][ T315] check_preemption_disabled+0x20d/0x220 [ 62.627525][ T315] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.632615][ T315] ? ext4_find_extent+0x81a/0xad0 [ 62.637619][ T315] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.643415][ T315] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.649211][ T315] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.654479][ T315] ? ext4_ext_release+0x10/0x10 [ 62.659321][ T315] ? down_write_killable+0x170/0x170 [ 62.664585][ T315] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.670083][ T315] ext4_map_blocks+0x4cb/0x1640 [ 62.674935][ T315] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.680139][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.685672][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.691638][ T315] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.697103][ T315] ext4_writepages+0x1a83/0x33c0 [ 62.702049][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.707707][ T315] ? __lock_acquire+0x2224/0x48b0 [ 62.712732][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.718694][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.724662][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.730270][ T315] ? do_writepages+0xf3/0x2a0 [ 62.734921][ T315] do_writepages+0xf3/0x2a0 [ 62.739411][ T315] ? page_writeback_cpu_online+0x10/0x10 [ 62.745039][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.750575][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.756562][ T315] ? lock_downgrade+0x840/0x840 [ 62.761468][ T315] __writeback_single_inode+0x12a/0x13d0 [ 62.767104][ T315] ? _raw_spin_unlock+0x24/0x40 [ 62.771961][ T315] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 62.777926][ T315] writeback_sb_inodes+0x515/0xdc0 [ 62.783046][ T315] ? __writeback_single_inode+0x13d0/0x13d0 [ 62.789284][ T315] __writeback_inodes_wb+0xc3/0x250 [ 62.794478][ T315] wb_writeback+0x8c8/0xd40 [ 62.798992][ T315] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 62.805391][ T315] ? cpumask_next+0x3c/0x40 [ 62.809873][ T315] ? get_nr_dirty_inodes+0xd6/0x130 [ 62.815067][ T315] wb_workfn+0x9bc/0x1090 [ 62.819395][ T315] ? inode_wait_for_writeback+0x30/0x30 [ 62.824922][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.830896][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.836856][ T315] process_one_work+0x965/0x1690 [ 62.841864][ T315] ? lock_release+0x800/0x800 [ 62.846534][ T315] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.851887][ T315] ? rwlock_bug.part.0+0x90/0x90 [ 62.856809][ T315] worker_thread+0x96/0xe10 [ 62.861313][ T315] ? process_one_work+0x1690/0x1690 [ 62.866489][ T315] kthread+0x3b5/0x4a0 [ 62.870539][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.876243][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.881986][ T315] ret_from_fork+0x1f/0x30 [ 62.889877][ T315] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/315 [ 62.899067][ T315] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.905107][ T315] CPU: 1 PID: 315 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 62.914320][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.924377][ T315] Workqueue: writeback wb_workfn (flush-8:0) [ 62.930500][ T315] Call Trace: [ 62.933778][ T315] dump_stack+0x18f/0x20d [ 62.938090][ T315] check_preemption_disabled+0x20d/0x220 [ 62.943889][ T315] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.949006][ T315] ? ext4_find_extent+0x81a/0xad0 [ 62.954014][ T315] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.959451][ T315] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.965152][ T315] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.970422][ T315] ? ext4_ext_release+0x10/0x10 [ 62.975273][ T315] ? down_write_killable+0x170/0x170 [ 62.980556][ T315] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.986068][ T315] ext4_map_blocks+0x4cb/0x1640 [ 62.990915][ T315] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.996112][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.001927][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.007893][ T315] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.013337][ T315] ext4_writepages+0x1a83/0x33c0 [ 63.018303][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.024017][ T315] ? __lock_acquire+0x2224/0x48b0 [ 63.029042][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.035002][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.040964][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.046728][ T315] ? do_writepages+0xf3/0x2a0 [ 63.051403][ T315] do_writepages+0xf3/0x2a0 [ 63.055905][ T315] ? page_writeback_cpu_online+0x10/0x10 [ 63.061531][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.067068][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.073204][ T315] ? lock_downgrade+0x840/0x840 [ 63.078048][ T315] __writeback_single_inode+0x12a/0x13d0 [ 63.083661][ T315] ? _raw_spin_unlock+0x24/0x40 [ 63.088489][ T315] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 63.094457][ T315] writeback_sb_inodes+0x515/0xdc0 [ 63.099570][ T315] ? __writeback_single_inode+0x13d0/0x13d0 [ 63.105467][ T315] __writeback_inodes_wb+0xc3/0x250 [ 63.110648][ T315] wb_writeback+0x8c8/0xd40 [ 63.115142][ T315] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 63.121731][ T315] ? cpumask_next+0x3c/0x40 [ 63.126213][ T315] ? get_nr_dirty_inodes+0xd6/0x130 [ 63.131393][ T315] wb_workfn+0x9bc/0x1090 [ 63.135717][ T315] ? inode_wait_for_writeback+0x30/0x30 [ 63.141264][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.146794][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.152867][ T315] process_one_work+0x965/0x1690 [ 63.157809][ T315] ? lock_release+0x800/0x800 [ 63.162902][ T315] ? pwq_dec_nr_in_flight+0x310/0x310 [ 63.168257][ T315] ? rwlock_bug.part.0+0x90/0x90 [ 63.173181][ T315] worker_thread+0x96/0xe10 [ 63.177670][ T315] ? process_one_work+0x1690/0x1690 [ 63.182846][ T315] kthread+0x3b5/0x4a0 [ 63.186905][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.192673][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.198388][ T315] ret_from_fork+0x1f/0x30 [ 63.205800][ T315] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/315 [ 63.215070][ T315] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.221177][ T315] CPU: 1 PID: 315 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 63.229917][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 63.230366][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.239465][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.249426][ T315] Workqueue: writeback wb_workfn (flush-8:0) [ 63.249436][ T315] Call Trace: [ 63.249456][ T315] dump_stack+0x18f/0x20d [ 63.249480][ T315] check_preemption_disabled+0x20d/0x220 [ 63.249496][ T315] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.249512][ T315] ? ext4_find_extent+0x81a/0xad0 [ 63.249537][ T315] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.290062][ T315] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.295770][ T315] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.301050][ T315] ? ext4_ext_release+0x10/0x10 [ 63.306263][ T315] ? down_write_killable+0x170/0x170 [ 63.311533][ T315] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.316980][ T315] ext4_map_blocks+0x4cb/0x1640 [ 63.321821][ T315] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.327011][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.332566][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.338549][ T315] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.344011][ T315] ext4_writepages+0x1a83/0x33c0 [ 63.348982][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.354734][ T315] ? __lock_acquire+0x2224/0x48b0 [ 63.359786][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.365755][ T315] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.371723][ T315] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.377425][ T315] ? do_writepages+0xf3/0x2a0 [ 63.382086][ T315] do_writepages+0xf3/0x2a0 [ 63.387112][ T315] ? page_writeback_cpu_online+0x10/0x10 [ 63.392749][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.398280][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.404248][ T315] ? lock_downgrade+0x840/0x840 [ 63.409113][ T315] __writeback_single_inode+0x12a/0x13d0 [ 63.414731][ T315] ? _raw_spin_unlock+0x24/0x40 [ 63.419639][ T315] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 63.425647][ T315] writeback_sb_inodes+0x515/0xdc0 [ 63.430779][ T315] ? __writeback_single_inode+0x13d0/0x13d0 [ 63.436675][ T315] __writeback_inodes_wb+0xc3/0x250 [ 63.441876][ T315] wb_writeback+0x8c8/0xd40 [ 63.446375][ T315] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 63.452696][ T315] ? cpumask_next+0x3c/0x40 [ 63.457182][ T315] ? get_nr_dirty_inodes+0xd6/0x130 [ 63.462457][ T315] wb_workfn+0x9bc/0x1090 [ 63.466778][ T315] ? inode_wait_for_writeback+0x30/0x30 [ 63.472311][ T315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.477841][ T315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.483813][ T315] process_one_work+0x965/0x1690 [ 63.488757][ T315] ? lock_release+0x800/0x800 [ 63.493417][ T315] ? pwq_dec_nr_in_flight+0x310/0x310 [ 63.498778][ T315] ? rwlock_bug.part.0+0x90/0x90 [ 63.503704][ T315] worker_thread+0x96/0xe10 [ 63.508199][ T315] ? process_one_work+0x1690/0x1690 [ 63.513384][ T315] kthread+0x3b5/0x4a0 [ 63.517439][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.523139][ T315] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.528845][ T315] ret_from_fork+0x1f/0x30 [ 63.533276][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 63.542398][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.552449][ T1155] Call Trace: [ 63.555732][ T1155] dump_stack+0x18f/0x20d [ 63.560050][ T1155] check_preemption_disabled+0x20d/0x220 [ 63.565667][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.570776][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.576226][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.582359][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.587631][ T1155] ? ext4_ext_release+0x10/0x10 [ 63.592474][ T1155] ? down_write_killable+0x170/0x170 [ 63.597736][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.603180][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 63.608025][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.613990][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.619531][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.625499][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.630940][ T1155] ext4_writepages+0x1a83/0x33c0 [ 63.635879][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.641499][ T1155] ? __lock_acquire+0x2224/0x48b0 [ 63.646533][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.652234][ T1155] ? do_writepages+0xf3/0x2a0 [ 63.656891][ T1155] do_writepages+0xf3/0x2a0 [ 63.661397][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 63.667009][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 63.672024][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 63.677200][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 63.682034][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.687750][ T1155] ? collapse_file+0x35a2/0x4330 [ 63.692672][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.698724][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.703902][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.709880][ T1155] collapse_file+0x35ac/0x4330 [ 63.714637][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 63.719996][ T1155] ? khugepaged+0x2506/0x3fc0 [ 63.724657][ T1155] ? xas_find+0x31a/0x880 [ 63.728966][ T1155] ? check_preemption_disabled+0x38/0x220 [ 63.734665][ T1155] khugepaged+0x3041/0x3fc0 [ 63.739166][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.744793][ T1155] ? lock_downgrade+0x840/0x840 [ 63.749624][ T1155] ? finish_wait+0x260/0x260 [ 63.755148][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.760933][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.766894][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 63.771905][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.777518][ T1155] kthread+0x3b5/0x4a0 [ 63.781575][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.787270][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.792970][ T1155] ret_from_fork+0x1f/0x30 [ 64.135792][ T6788] can: request_module (can-proto-0) failed. [ 64.147321][ T6788] can: request_module (can-proto-0) failed.