[ 52.874654][ T6723] vfs_mkdir+0x419/0x690 [ 52.889263][ T6723] do_mkdirat+0x21e/0x280 [ 52.889282][ T6723] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.889298][ T6723] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.889315][ T6723] ? do_syscall_64+0x21/0x7d0 [ 52.889330][ T6723] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.889349][ T6723] do_syscall_64+0xf6/0x7d0 [ 52.889370][ T6723] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.889382][ T6723] RIP: 0033:0x7f7a7aa65687 [ 52.889397][ T6723] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 [ 52.889404][ T6723] RSP: 002b:00007ffc6557d518 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.889418][ T6723] RAX: ffffffffffffffda RBX: 0000563e51223985 RCX: 00007f7a7aa65687 [ 52.889426][ T6723] RDX: 00007ffc6557d3e0 RSI: 00000000000001ed RDI: 0000563e51223985 [ 52.889434][ T6723] RBP: 00007f7a7aa65680 R08: 0000000000000100 R09: 0000000000000000 [ 52.889442][ T6723] R10: 0000563e51223980 R11: 0000000000000246 R12: 00000000000001ed [ 52.889450][ T6723] R13: 00007ffc6557d6a0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.358208][ T64] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:3/64 [ 57.367254][ T64] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.373493][ T64] CPU: 1 PID: 64 Comm: kworker/u4:3 Not tainted 5.7.0-syzkaller #0 [ 57.381381][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.391428][ T64] Workqueue: writeback wb_workfn (flush-8:0) [ 57.397390][ T64] Call Trace: [ 57.400677][ T64] dump_stack+0x188/0x20d [ 57.404988][ T64] debug_smp_processor_id.cold+0x88/0x9b [ 57.410601][ T64] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.415775][ T64] ? __kmalloc+0x62f/0x7a0 [ 57.420179][ T64] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.425717][ T64] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.431430][ T64] ext4_ext_map_blocks+0x2044/0x3410 [ 57.436740][ T64] ? ext4_ext_release+0x10/0x10 [ 57.441591][ T64] ? __down_timeout+0x2d0/0x2d0 [ 57.446497][ T64] ? ext4_es_lookup_extent+0x41d/0xd30 [ 57.452025][ T64] ? debug_smp_processor_id+0x2f/0x185 [ 57.457492][ T64] ext4_map_blocks+0x4cb/0x1640 [ 57.462346][ T64] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.467518][ T64] ? debug_smp_processor_id+0x2f/0x185 [ 57.472961][ T64] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.478485][ T64] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.484456][ T64] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.489910][ T64] ext4_writepages+0x1ab7/0x3400 [ 57.494855][ T64] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.500479][ T64] ? __lock_acquire+0x2224/0x48a0 [ 57.505490][ T64] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.511450][ T64] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.517612][ T64] ? __ext4_mark_inode_dirty+0x950/0x950 [ 57.523311][ T64] ? do_writepages+0xfa/0x2a0 [ 57.527979][ T64] do_writepages+0xfa/0x2a0 [ 57.532476][ T64] ? page_writeback_cpu_online+0x10/0x10 [ 57.538086][ T64] ? debug_smp_processor_id+0x2f/0x185 [ 57.543525][ T64] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.549074][ T64] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.555030][ T64] ? lock_downgrade+0x840/0x840 [ 57.559876][ T64] __writeback_single_inode+0x12a/0x1410 [ 57.565488][ T64] ? _raw_spin_unlock+0x24/0x40 [ 57.570313][ T64] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.576702][ T64] writeback_sb_inodes+0x515/0xdd0 [ 57.581806][ T64] ? __writeback_single_inode+0x1410/0x1410 [ 57.587810][ T64] __writeback_inodes_wb+0xc3/0x250 [ 57.592987][ T64] wb_writeback+0x910/0xd90 [ 57.597466][ T64] ? print_usage_bug+0x240/0x240 [ 57.602382][ T64] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.608683][ T64] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.614567][ T64] ? cpumask_next+0x3c/0x40 [ 57.619408][ T64] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.624614][ T64] wb_workfn+0xadf/0x10d0 [ 57.628930][ T64] ? inode_wait_for_writeback+0x30/0x30 [ 57.634459][ T64] ? debug_smp_processor_id+0x2f/0x185 [ 57.639974][ T64] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.645584][ T64] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.651572][ T64] process_one_work+0x965/0x16a0 [ 57.657459][ T64] ? lock_release+0x800/0x800 [ 57.662203][ T64] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.667576][ T64] ? rwlock_bug.part.0+0x90/0x90 [ 57.672503][ T64] worker_thread+0x96/0xe10 [ 57.676989][ T64] ? process_one_work+0x16a0/0x16a0 [ 57.682164][ T64] kthread+0x388/0x470 [ 57.686217][ T64] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.691921][ T64] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.697617][ T64] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.0.160' (ECDSA) to the list of known hosts. 2020/06/10 17:43:51 fuzzer started 2020/06/10 17:43:51 connecting to host at 10.128.0.26:42517 2020/06/10 17:43:51 checking machine... 2020/06/10 17:43:51 checking revisions... 2020/06/10 17:43:51 testing simple program... [ 58.692863][ T6809] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6809 [ 58.702085][ T6809] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.708036][ T6809] CPU: 1 PID: 6809 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.715928][ T6809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.726839][ T6809] Call Trace: [ 58.730121][ T6809] dump_stack+0x188/0x20d [ 58.734428][ T6809] debug_smp_processor_id.cold+0x88/0x9b [ 58.740037][ T6809] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.745128][ T6809] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.750680][ T6809] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.756389][ T6809] ext4_ext_map_blocks+0x2044/0x3410 [ 58.761733][ T6809] ? ext4_ext_release+0x10/0x10 [ 58.766604][ T6809] ? __down_timeout+0x2d0/0x2d0 [ 58.771449][ T6809] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.776900][ T6809] ext4_map_blocks+0x4cb/0x1640 [ 58.781735][ T6809] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.786916][ T6809] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.792449][ T6809] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.798413][ T6809] ? prandom_u32_state+0xe/0x170 [ 58.803336][ T6809] ? __brelse+0x84/0xa0 [ 58.807480][ T6809] ? __ext4_new_inode+0x144/0x57c0 [ 58.812574][ T6809] ext4_getblk+0xad/0x520 [ 58.816880][ T6809] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.823546][ T6809] ? ext4_free_inode+0x17e0/0x17e0 [ 58.828647][ T6809] ext4_bread+0x7c/0x380 [ 58.832866][ T6809] ? ext4_getblk+0x520/0x520 [ 58.837516][ T6809] ? dqget+0xff0/0xff0 [ 58.841567][ T6809] ext4_append+0x153/0x360 [ 58.845971][ T6809] ext4_mkdir+0x5e0/0xdf0 [ 58.850283][ T6809] ? ext4_rmdir+0xde0/0xde0 [ 58.854765][ T6809] ? security_inode_permission+0xc4/0xf0 [ 58.860392][ T6809] vfs_mkdir+0x419/0x690 [ 58.864616][ T6809] do_mkdirat+0x21e/0x280 [ 58.868927][ T6809] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.873752][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.879722][ T6809] ? do_syscall_64+0x21/0x7d0 [ 58.885434][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.891406][ T6809] do_syscall_64+0xf6/0x7d0 [ 58.895914][ T6809] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.901910][ T6809] RIP: 0033:0x4b02a0 [ 58.905787][ T6809] 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 [ 58.926113][ T6809] RSP: 002b:000000c0000df4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.934547][ T6809] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 58.942517][ T6809] RDX: 00000000000001c0 RSI: 000000c0000ce840 RDI: ffffffffffffff9c [ 58.950464][ T6809] RBP: 000000c0000df510 R08: 0000000000000000 R09: 0000000000000000 [ 58.958411][ T6809] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.966356][ T6809] R13: 0000000000000043 R14: 0000000000000042 R15: 0000000000000100 [ 58.982526][ T6812] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6812 [ 58.992019][ T6812] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.998084][ T6812] CPU: 1 PID: 6812 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.007535][ T6812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.018268][ T6812] Call Trace: [ 59.021596][ T6812] dump_stack+0x188/0x20d [ 59.025911][ T6812] debug_smp_processor_id.cold+0x88/0x9b [ 59.031538][ T6812] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.036658][ T6812] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.042096][ T6812] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.047806][ T6812] ext4_ext_map_blocks+0x2044/0x3410 [ 59.053173][ T6812] ? ext4_ext_release+0x10/0x10 [ 59.058067][ T6812] ? __down_timeout+0x2d0/0x2d0 [ 59.062899][ T6812] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.068341][ T6812] ext4_map_blocks+0x4cb/0x1640 [ 59.073192][ T6812] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.078369][ T6812] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.083892][ T6812] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.089854][ T6812] ? prandom_u32_state+0xe/0x170 [ 59.094767][ T6812] ? __brelse+0x84/0xa0 [ 59.098897][ T6812] ? __ext4_new_inode+0x144/0x57c0 [ 59.103983][ T6812] ext4_getblk+0xad/0x520 [ 59.108291][ T6812] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.113988][ T6812] ? ext4_free_inode+0x17e0/0x17e0 [ 59.119076][ T6812] ext4_bread+0x7c/0x380 [ 59.123295][ T6812] ? ext4_getblk+0x520/0x520 [ 59.127878][ T6812] ? dqget+0xff0/0xff0 [ 59.131935][ T6812] ext4_append+0x153/0x360 [ 59.136326][ T6812] ext4_mkdir+0x5e0/0xdf0 [ 59.140634][ T6812] ? ext4_rmdir+0xde0/0xde0 [ 59.145115][ T6812] ? security_inode_permission+0xc4/0xf0 [ 59.150725][ T6812] vfs_mkdir+0x419/0x690 [ 59.154978][ T6812] do_mkdirat+0x21e/0x280 [ 59.159294][ T6812] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.164165][ T6812] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.170220][ T6812] ? do_syscall_64+0x21/0x7d0 [ 59.174883][ T6812] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.180891][ T6812] do_syscall_64+0xf6/0x7d0 [ 59.185420][ T6812] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.191316][ T6812] RIP: 0033:0x45bee7 [ 59.195226][ T6812] 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 [ 59.215500][ T6812] RSP: 002b:00007ffde301f918 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.223995][ T6812] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.231972][ T6812] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffde301faf0 [ 59.239941][ T6812] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002800 [ 59.247907][ T6812] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.256063][ T6812] R13: 00007ffde301faf0 R14: 8421084210842109 R15: 00007ffde301fafc [ 59.337426][ T6813] IPVS: ftp: loaded support on port[0] = 21 [ 59.373595][ T6813] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6813 [ 59.383077][ T6813] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.389121][ T6813] CPU: 1 PID: 6813 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.397355][ T6813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.407404][ T6813] Call Trace: [ 59.410702][ T6813] dump_stack+0x188/0x20d [ 59.415017][ T6813] debug_smp_processor_id.cold+0x88/0x9b [ 59.420645][ T6813] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.425741][ T6813] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.431186][ T6813] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.436899][ T6813] ext4_ext_map_blocks+0x2044/0x3410 [ 59.442184][ T6813] ? ext4_ext_release+0x10/0x10 [ 59.447046][ T6813] ? __down_timeout+0x2d0/0x2d0 [ 59.451880][ T6813] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.457328][ T6813] ext4_map_blocks+0x4cb/0x1640 [ 59.462170][ T6813] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.470314][ T6813] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.475862][ T6813] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.481836][ T6813] ? prandom_u32_state+0xe/0x170 [ 59.486752][ T6813] ? __brelse+0x84/0xa0 [ 59.490885][ T6813] ? __ext4_new_inode+0x144/0x57c0 [ 59.495975][ T6813] ext4_getblk+0xad/0x520 [ 59.500299][ T6813] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.506709][ T6813] ? ext4_free_inode+0x17e0/0x17e0 [ 59.511814][ T6813] ext4_bread+0x7c/0x380 [ 59.516035][ T6813] ? ext4_getblk+0x520/0x520 [ 59.520623][ T6813] ? dqget+0xff0/0xff0 [ 59.524692][ T6813] ext4_append+0x153/0x360 [ 59.529088][ T6813] ext4_mkdir+0x5e0/0xdf0 [ 59.533398][ T6813] ? ext4_rmdir+0xde0/0xde0 [ 59.537880][ T6813] ? security_inode_permission+0xc4/0xf0 [ 59.543508][ T6813] vfs_mkdir+0x419/0x690 [ 59.547747][ T6813] do_mkdirat+0x21e/0x280 [ 59.552065][ T6813] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.556931][ T6813] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.562908][ T6813] ? do_syscall_64+0x21/0x7d0 [ 59.567567][ T6813] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.574585][ T6813] do_syscall_64+0xf6/0x7d0 [ 59.579072][ T6813] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.584938][ T6813] RIP: 0033:0x45bee7 [ 59.588809][ T6813] 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 [ 59.608683][ T6813] RSP: 002b:00007ffde301f808 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.617657][ T6813] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 59.625614][ T6813] RDX: 00007ffde301f853 RSI: 00000000000001ff RDI: 00007ffde301f850 [ 59.633564][ T6813] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 59.641622][ T6813] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 59.649585][ T6813] R13: 00007ffde301f840 R14: 0000000000000000 R15: 00007ffde301f850 [ 59.699313][ T6813] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6813 [ 59.708789][ T6813] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.714688][ T6813] CPU: 0 PID: 6813 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.722919][ T6813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.732971][ T6813] Call Trace: [ 59.736266][ T6813] dump_stack+0x188/0x20d [ 59.740609][ T6813] debug_smp_processor_id.cold+0x88/0x9b [ 59.746243][ T6813] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.751376][ T6813] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.756842][ T6813] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.762575][ T6813] ext4_ext_map_blocks+0x2044/0x3410 [ 59.767878][ T6813] ? ext4_ext_release+0x10/0x10 [ 59.773429][ T6813] ? __down_timeout+0x2d0/0x2d0 [ 59.778271][ T6813] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.783724][ T6813] ext4_map_blocks+0x4cb/0x1640 [ 59.788562][ T6813] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.793786][ T6813] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.799368][ T6813] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.805325][ T6813] ? prandom_u32_state+0xe/0x170 [ 59.810241][ T6813] ? __brelse+0x84/0xa0 [ 59.814383][ T6813] ? __ext4_new_inode+0x144/0x57c0 [ 59.820101][ T6813] ext4_getblk+0xad/0x520 [ 59.824412][ T6813] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.830375][ T6813] ? ext4_free_inode+0x17e0/0x17e0 [ 59.835464][ T6813] ext4_bread+0x7c/0x380 [ 59.839698][ T6813] ? ext4_getblk+0x520/0x520 [ 59.844264][ T6813] ? dqget+0xff0/0xff0 [ 59.848313][ T6813] ext4_append+0x153/0x360 [ 59.852708][ T6813] ext4_mkdir+0x5e0/0xdf0 [ 59.857035][ T6813] ? ext4_rmdir+0xde0/0xde0 [ 59.861520][ T6813] ? security_inode_permission+0xc4/0xf0 [ 59.867148][ T6813] vfs_mkdir+0x419/0x690 [ 59.871479][ T6813] do_mkdirat+0x21e/0x280 [ 59.875803][ T6813] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.880649][ T6813] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.886608][ T6813] ? do_syscall_64+0x21/0x7d0 [ 59.891264][ T6813] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.897236][ T6813] do_syscall_64+0xf6/0x7d0 [ 59.901723][ T6813] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.907598][ T6813] RIP: 0033:0x45bee7 [ 59.911549][ T6813] 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 [ 59.931192][ T6813] RSP: 002b:00007ffde301f808 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.939864][ T6813] RAX: ffffffffffffffda RBX: 000000000000e934 RCX: 000000000045bee7 2020/06/10 17:43:53 building call list... [ 59.947835][ T6813] RDX: 00007ffde301f853 RSI: 00000000000001ff RDI: 00007ffde301f850 [ 59.955799][ T6813] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.963750][ T6813] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.971699][ T6813] R13: 00007ffde301f840 R14: 000000000000e922 R15: 00007ffde301f850 [ 60.258804][ T427] tipc: TX() has been purged, node left! executing program [ 61.665950][ T6798] can: request_module (can-proto-0) failed. [ 62.199190][ T6798] can: request_module (can-proto-0) failed. [ 62.210955][ T6798] can: request_module (can-proto-0) failed.