Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.26' (ECDSA) to the list of known hosts. 2020/06/17 05:40:29 fuzzer started 2020/06/17 05:40:29 connecting to host at 10.128.0.26:35753 2020/06/17 05:40:29 checking machine... 2020/06/17 05:40:29 checking revisions... 2020/06/17 05:40:29 testing simple program... syzkaller login: [ 60.883387][ T6804] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6804 [ 60.893689][ T6804] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.900219][ T6804] CPU: 0 PID: 6804 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 60.908791][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.919720][ T6804] Call Trace: [ 60.923452][ T6804] dump_stack+0x188/0x20d [ 60.927904][ T6804] debug_smp_processor_id.cold+0x88/0x9b [ 60.934932][ T6804] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.940938][ T6804] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.947159][ T6804] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.953178][ T6804] ext4_ext_map_blocks+0x2044/0x3410 [ 60.958613][ T6804] ? ext4_ext_release+0x10/0x10 [ 60.963671][ T6804] ? __down_timeout+0x2d0/0x2d0 [ 60.968790][ T6804] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.975726][ T6804] ext4_map_blocks+0x4cb/0x1640 [ 60.982259][ T6804] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.988242][ T6804] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.994144][ T6804] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.001593][ T6804] ? prandom_u32_state+0xe/0x170 [ 61.006574][ T6804] ? __brelse+0x84/0xa0 [ 61.011016][ T6804] ? __ext4_new_inode+0x144/0x57c0 [ 61.016512][ T6804] ext4_getblk+0xad/0x520 [ 61.021167][ T6804] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.027078][ T6804] ? ext4_free_inode+0x17e0/0x17e0 [ 61.032303][ T6804] ext4_bread+0x7c/0x380 [ 61.036557][ T6804] ? ext4_getblk+0x520/0x520 [ 61.041147][ T6804] ? dqget+0xff0/0xff0 [ 61.045795][ T6804] ext4_append+0x153/0x360 [ 61.050419][ T6804] ext4_mkdir+0x5e0/0xdf0 [ 61.054770][ T6804] ? ext4_rmdir+0xde0/0xde0 [ 61.059916][ T6804] ? security_inode_permission+0xc4/0xf0 [ 61.067139][ T6804] vfs_mkdir+0x419/0x690 [ 61.071486][ T6804] do_mkdirat+0x21e/0x280 [ 61.076131][ T6804] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.081831][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.088844][ T6804] ? do_syscall_64+0x21/0x7d0 [ 61.093643][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.099827][ T6804] do_syscall_64+0xf6/0x7d0 [ 61.104403][ T6804] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.111089][ T6804] RIP: 0033:0x4b02a0 [ 61.115014][ T6804] 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 [ 61.135005][ T6804] RSP: 002b:000000c0000d94b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 61.144240][ T6804] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 61.153309][ T6804] RDX: 00000000000001c0 RSI: 000000c000026e20 RDI: ffffffffffffff9c [ 61.161325][ T6804] RBP: 000000c0000d9510 R08: 0000000000000000 R09: 0000000000000000 [ 61.169293][ T6804] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 61.177260][ T6804] R13: 0000000000000072 R14: 0000000000000071 R15: 0000000000000100 [ 61.207930][ T6821] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6821 [ 61.217893][ T6821] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.225053][ T6821] CPU: 1 PID: 6821 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.234192][ T6821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.244782][ T6821] Call Trace: [ 61.248081][ T6821] dump_stack+0x188/0x20d [ 61.252403][ T6821] debug_smp_processor_id.cold+0x88/0x9b [ 61.258033][ T6821] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.263167][ T6821] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.268631][ T6821] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.274342][ T6821] ext4_ext_map_blocks+0x2044/0x3410 [ 61.279614][ T6821] ? ext4_ext_release+0x10/0x10 [ 61.284726][ T6821] ? __down_timeout+0x2d0/0x2d0 [ 61.289582][ T6821] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.295520][ T6821] ext4_map_blocks+0x4cb/0x1640 [ 61.300923][ T6821] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.306120][ T6821] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.312186][ T6821] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.318465][ T6821] ? prandom_u32_state+0xe/0x170 [ 61.323574][ T6821] ? __brelse+0x84/0xa0 [ 61.327757][ T6821] ? __ext4_new_inode+0x144/0x57c0 [ 61.333312][ T6821] ext4_getblk+0xad/0x520 [ 61.337662][ T6821] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.343677][ T6821] ? ext4_free_inode+0x17e0/0x17e0 [ 61.348798][ T6821] ext4_bread+0x7c/0x380 [ 61.353066][ T6821] ? ext4_getblk+0x520/0x520 [ 61.357662][ T6821] ? dqget+0xff0/0xff0 [ 61.361754][ T6821] ext4_append+0x153/0x360 [ 61.366166][ T6821] ext4_mkdir+0x5e0/0xdf0 [ 61.370508][ T6821] ? ext4_rmdir+0xde0/0xde0 [ 61.375048][ T6821] ? security_inode_permission+0xc4/0xf0 [ 61.380676][ T6821] vfs_mkdir+0x419/0x690 [ 61.384903][ T6821] do_mkdirat+0x21e/0x280 [ 61.389528][ T6821] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.395090][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.401317][ T6821] ? do_syscall_64+0x21/0x7d0 [ 61.406212][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.412530][ T6821] do_syscall_64+0xf6/0x7d0 [ 61.420155][ T6821] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.426259][ T6821] RIP: 0033:0x45bed7 [ 61.430142][ T6821] 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 [ 61.450150][ T6821] RSP: 002b:00007ffc81623548 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 61.458819][ T6821] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bed7 [ 61.466800][ T6821] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffc81623720 [ 61.474835][ T6821] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002ec0 [ 61.483081][ T6821] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 61.491189][ T6821] R13: 00007ffc81623720 R14: 8421084210842109 R15: 00007ffc8162372c [ 61.579179][ T6822] IPVS: ftp: loaded support on port[0] = 21 [ 61.619463][ T6822] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6822 [ 61.629004][ T6822] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.634918][ T6822] CPU: 0 PID: 6822 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.643156][ T6822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.653437][ T6822] Call Trace: [ 61.656722][ T6822] dump_stack+0x188/0x20d [ 61.661055][ T6822] debug_smp_processor_id.cold+0x88/0x9b [ 61.666810][ T6822] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.671922][ T6822] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.677381][ T6822] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.683118][ T6822] ext4_ext_map_blocks+0x2044/0x3410 [ 61.688434][ T6822] ? ext4_ext_release+0x10/0x10 [ 61.693405][ T6822] ? __down_timeout+0x2d0/0x2d0 [ 61.698255][ T6822] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.703707][ T6822] ext4_map_blocks+0x4cb/0x1640 [ 61.708701][ T6822] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.713896][ T6822] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.719544][ T6822] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.725651][ T6822] ? prandom_u32_state+0xe/0x170 [ 61.730597][ T6822] ? __brelse+0x84/0xa0 [ 61.734965][ T6822] ? __ext4_new_inode+0x144/0x57c0 [ 61.740098][ T6822] ext4_getblk+0xad/0x520 [ 61.744447][ T6822] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.750325][ T6822] ? ext4_free_inode+0x17e0/0x17e0 [ 61.755458][ T6822] ext4_bread+0x7c/0x380 [ 61.759707][ T6822] ? ext4_getblk+0x520/0x520 [ 61.765258][ T6822] ? dqget+0xff0/0xff0 [ 61.769313][ T6822] ext4_append+0x153/0x360 [ 61.773762][ T6822] ext4_mkdir+0x5e0/0xdf0 [ 61.778119][ T6822] ? ext4_rmdir+0xde0/0xde0 [ 61.784016][ T6822] ? security_inode_permission+0xc4/0xf0 [ 61.789685][ T6822] vfs_mkdir+0x419/0x690 [ 61.794819][ T6822] do_mkdirat+0x21e/0x280 [ 61.799462][ T6822] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.804299][ T6822] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.810283][ T6822] ? do_syscall_64+0x21/0x7d0 [ 61.814977][ T6822] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.820951][ T6822] do_syscall_64+0xf6/0x7d0 [ 61.825443][ T6822] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.831318][ T6822] RIP: 0033:0x45bed7 [ 61.835393][ T6822] 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 [ 61.855680][ T6822] RSP: 002b:00007ffc81623438 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 61.864196][ T6822] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bed7 [ 61.872792][ T6822] RDX: 00007ffc81623483 RSI: 00000000000001ff RDI: 00007ffc81623480 [ 61.880752][ T6822] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.888707][ T6822] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185c0 [ 61.896672][ T6822] R13: 00007ffc81623470 R14: 0000000000000000 R15: 00007ffc81623480 [ 61.960329][ T6822] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6822 [ 61.970123][ T6822] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.977610][ T6822] CPU: 1 PID: 6822 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.985954][ T6822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.996365][ T6822] Call Trace: [ 61.999793][ T6822] dump_stack+0x188/0x20d [ 62.004166][ T6822] debug_smp_processor_id.cold+0x88/0x9b [ 62.009904][ T6822] ext4_mb_new_blocks+0xa77/0x3b30 [ 62.015979][ T6822] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.021569][ T6822] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.027343][ T6822] ext4_ext_map_blocks+0x2044/0x3410 [ 62.036002][ T6822] ? ext4_ext_release+0x10/0x10 [ 62.040881][ T6822] ? __down_timeout+0x2d0/0x2d0 [ 62.046086][ T6822] ? ext4_es_lookup_extent+0x41d/0xd30 [ 62.051687][ T6822] ext4_map_blocks+0x4cb/0x1640 [ 62.057313][ T6822] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.065045][ T6822] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.071767][ T6822] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.080000][ T6822] ? prandom_u32_state+0xe/0x170 [ 62.085512][ T6822] ? __brelse+0x84/0xa0 [ 62.090459][ T6822] ? __ext4_new_inode+0x144/0x57c0 [ 62.095939][ T6822] ext4_getblk+0xad/0x520 [ 62.102743][ T6822] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 62.110044][ T6822] ? ext4_free_inode+0x17e0/0x17e0 [ 62.115437][ T6822] ext4_bread+0x7c/0x380 [ 62.119676][ T6822] ? ext4_getblk+0x520/0x520 [ 62.124443][ T6822] ? dqget+0xff0/0xff0 [ 62.128651][ T6822] ext4_append+0x153/0x360 [ 62.133504][ T6822] ext4_mkdir+0x5e0/0xdf0 [ 62.138206][ T6822] ? ext4_rmdir+0xde0/0xde0 [ 62.142769][ T6822] ? security_inode_permission+0xc4/0xf0 [ 62.148539][ T6822] vfs_mkdir+0x419/0x690 [ 62.153206][ T6822] do_mkdirat+0x21e/0x280 [ 62.158177][ T6822] ? __ia32_sys_mknod+0xb0/0xb0 [ 62.163054][ T6822] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.169043][ T6822] ? do_syscall_64+0x21/0x7d0 [ 62.173867][ T6822] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.179943][ T6822] do_syscall_64+0xf6/0x7d0 [ 62.184635][ T6822] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.190943][ T6822] RIP: 0033:0x45bed7 [ 62.194877][ T6822] 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 [ 62.216413][ T6822] RSP: 002b:00007ffc81623438 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 62.225881][ T6822] RAX: ffffffffffffffda RBX: 000000000000f1f9 RCX: 000000000045bed7 [ 62.233942][ T6822] RDX: 00007ffc81623483 RSI: 00000000000001ff RDI: 00007ffc81623480 [ 62.241919][ T6822] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 62.249876][ T6822] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 2020/06/17 05:40:31 building call list... [ 62.258092][ T6822] R13: 00007ffc81623470 R14: 000000000000f1ea R15: 00007ffc81623480 [ 62.598029][ T317] tipc: TX() has been purged, node left! executing program [ 63.725099][ T1159] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1159 [ 63.734561][ T1159] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 63.740540][ T1159] CPU: 1 PID: 1159 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 63.748437][ T1159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.758495][ T1159] Call Trace: [ 63.761791][ T1159] dump_stack+0x188/0x20d [ 63.766153][ T1159] debug_smp_processor_id.cold+0x88/0x9b [ 63.771812][ T1159] ext4_mb_new_blocks+0xa77/0x3b30 [ 63.776914][ T1159] ? __kmalloc+0x62f/0x7a0 [ 63.781362][ T1159] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.786846][ T1159] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.792577][ T1159] ext4_ext_map_blocks+0x2044/0x3410 [ 63.798070][ T1159] ? ext4_ext_release+0x10/0x10 [ 63.803944][ T1159] ? __down_timeout+0x2d0/0x2d0 [ 63.808816][ T1159] ? ext4_es_lookup_extent+0x41d/0xd30 [ 63.814318][ T1159] ext4_map_blocks+0x4cb/0x1640 [ 63.819182][ T1159] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.824408][ T1159] ? debug_smp_processor_id+0x2f/0x185 [ 63.829890][ T1159] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.835439][ T1159] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.841435][ T1159] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.848397][ T1159] ext4_writepages+0x1ab7/0x3400 [ 63.853893][ T1159] ? mark_lock+0x30/0xdd0 [ 63.858350][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.864157][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 63.869817][ T1159] ? do_writepages+0xfa/0x2a0 [ 63.874496][ T1159] do_writepages+0xfa/0x2a0 [ 63.879007][ T1159] ? page_writeback_cpu_online+0x10/0x10 [ 63.885072][ T1159] ? do_raw_spin_lock+0x129/0x2e0 [ 63.890991][ T1159] ? do_raw_spin_unlock+0x171/0x260 [ 63.896227][ T1159] ? _raw_spin_unlock+0x24/0x40 [ 63.901108][ T1159] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.906846][ T1159] ? collapse_file+0x3575/0x4300 [ 63.911806][ T1159] ? delete_from_page_cache_batch+0xec0/0xec0 [ 63.917880][ T1159] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.923098][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.929090][ T1159] collapse_file+0x357f/0x4300 [ 63.933878][ T1159] ? collapse_huge_page+0x4370/0x4370 [ 63.939770][ T1159] ? khugepaged+0x24fa/0x3f80 [ 63.944464][ T1159] khugepaged+0x3049/0x3f80 [ 63.948991][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.954651][ T1159] ? lock_downgrade+0x840/0x840 [ 63.959590][ T1159] ? finish_wait+0x260/0x260 [ 63.964211][ T1159] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.970033][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.976024][ T1159] ? __kthread_parkme+0x13f/0x1e0 [ 63.981050][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.986685][ T1159] kthread+0x388/0x470 [ 63.990758][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.996471][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.002192][ T1159] ret_from_fork+0x24/0x30 [ 64.104766][ T1159] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1159 [ 64.115382][ T1159] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 64.121369][ T1159] CPU: 1 PID: 1159 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 64.129516][ T1159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.139564][ T1159] Call Trace: [ 64.142860][ T1159] dump_stack+0x188/0x20d [ 64.147191][ T1159] debug_smp_processor_id.cold+0x88/0x9b [ 64.152838][ T1159] ext4_mb_new_blocks+0xa77/0x3b30 [ 64.157957][ T1159] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.163502][ T1159] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 64.170088][ T1159] ext4_ext_map_blocks+0x2044/0x3410 [ 64.175399][ T1159] ? ext4_ext_release+0x10/0x10 [ 64.180267][ T1159] ? __down_timeout+0x2d0/0x2d0 [ 64.185119][ T1159] ? ext4_es_lookup_extent+0x41d/0xd30 [ 64.190600][ T1159] ext4_map_blocks+0x4cb/0x1640 [ 64.195632][ T1159] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.200830][ T1159] ? debug_smp_processor_id+0x2f/0x185 [ 64.206286][ T1159] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.211834][ T1159] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.217807][ T1159] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.223264][ T1159] ext4_writepages+0x1ab7/0x3400 [ 64.228199][ T1159] ? mark_lock+0x30/0xdd0 [ 64.232534][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.238193][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.243816][ T1159] ? do_writepages+0xfa/0x2a0 [ 64.248487][ T1159] do_writepages+0xfa/0x2a0 [ 64.252993][ T1159] ? page_writeback_cpu_online+0x10/0x10 [ 64.258621][ T1159] ? do_raw_spin_lock+0x129/0x2e0 [ 64.263645][ T1159] ? do_raw_spin_unlock+0x171/0x260 [ 64.268834][ T1159] ? _raw_spin_unlock+0x24/0x40 [ 64.273686][ T1159] __filemap_fdatawrite_range+0x2aa/0x390 [ 64.279400][ T1159] ? collapse_file+0x3575/0x4300 [ 64.284329][ T1159] ? delete_from_page_cache_batch+0xec0/0xec0 [ 64.290395][ T1159] ? _raw_spin_unlock_irq+0x1f/0x80 [ 64.295583][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.301566][ T1159] collapse_file+0x357f/0x4300 [ 64.306342][ T1159] ? collapse_huge_page+0x4370/0x4370 [ 64.311708][ T1159] ? khugepaged+0x24fa/0x3f80 [ 64.316403][ T1159] khugepaged+0x3049/0x3f80 [ 64.320930][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.326558][ T1159] ? lock_downgrade+0x840/0x840 [ 64.331408][ T1159] ? finish_wait+0x260/0x260 [ 64.335992][ T1159] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 64.341792][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.347790][ T1159] ? __kthread_parkme+0x13f/0x1e0 [ 64.352815][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.358444][ T1159] kthread+0x388/0x470 [ 64.362503][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.368211][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.373925][ T1159] ret_from_fork+0x24/0x30 [ 64.495354][ T1159] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1159 [ 64.504907][ T1159] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 64.510887][ T1159] CPU: 1 PID: 1159 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 64.518781][ T1159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.528838][ T1159] Call Trace: [ 64.532129][ T1159] dump_stack+0x188/0x20d [ 64.536454][ T1159] debug_smp_processor_id.cold+0x88/0x9b [ 64.542069][ T1159] ext4_mb_new_blocks+0xa77/0x3b30 [ 64.547168][ T1159] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.552613][ T1159] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 64.558762][ T1159] ext4_ext_map_blocks+0x2044/0x3410 [ 64.564031][ T1159] ? ext4_ext_release+0x10/0x10 [ 64.568874][ T1159] ? __down_timeout+0x2d0/0x2d0 [ 64.573702][ T1159] ? ext4_es_lookup_extent+0x41d/0xd30 [ 64.579163][ T1159] ext4_map_blocks+0x4cb/0x1640 [ 64.584005][ T1159] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.589190][ T1159] ? debug_smp_processor_id+0x2f/0x185 [ 64.594639][ T1159] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.600162][ T1159] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.606120][ T1159] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.611567][ T1159] ext4_writepages+0x1ab7/0x3400 [ 64.616487][ T1159] ? mark_lock+0x30/0xdd0 [ 64.620815][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.626446][ T1159] ? __ext4_mark_inode_dirty+0x950/0x950 [ 64.632059][ T1159] ? do_writepages+0xfa/0x2a0 [ 64.636715][ T1159] do_writepages+0xfa/0x2a0 [ 64.641205][ T1159] ? page_writeback_cpu_online+0x10/0x10 [ 64.646816][ T1159] ? do_raw_spin_lock+0x129/0x2e0 [ 64.651819][ T1159] ? do_raw_spin_unlock+0x171/0x260 [ 64.656995][ T1159] ? _raw_spin_unlock+0x24/0x40 [ 64.661827][ T1159] __filemap_fdatawrite_range+0x2aa/0x390 [ 64.667526][ T1159] ? collapse_file+0x3575/0x4300 [ 64.672441][ T1159] ? delete_from_page_cache_batch+0xec0/0xec0 [ 64.678492][ T1159] ? _raw_spin_unlock_irq+0x1f/0x80 [ 64.683667][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.689638][ T1159] collapse_file+0x357f/0x4300 [ 64.694408][ T1159] ? collapse_huge_page+0x4370/0x4370 [ 64.699757][ T1159] ? khugepaged+0x24fa/0x3f80 [ 64.704429][ T1159] khugepaged+0x3049/0x3f80 [ 64.708930][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.714541][ T1159] ? lock_downgrade+0x840/0x840 [ 64.719371][ T1159] ? finish_wait+0x260/0x260 [ 64.723962][ T1159] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 64.729755][ T1159] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.735716][ T1159] ? __kthread_parkme+0x13f/0x1e0 [ 64.740724][ T1159] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.746337][ T1159] kthread+0x388/0x470 [ 64.750435][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.756132][ T1159] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.761829][ T1159] ret_from_fork+0x24/0x30 [ 64.846675][ T6848] can: request_module (can-proto-0) failed. [ 65.161805][ T6848] can: request_module (can-proto-0) failed. [ 65.173278][ T6848] can: request_module (can-proto-0) failed.