[ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. Starting Load/Save RF Kill Switch Status... [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. [ 53.961357][ T6786] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6786 [ 53.970832][ T6786] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.976968][ T6786] CPU: 0 PID: 6786 Comm: systemd-rfkill Not tainted 5.7.0-next-20200605-syzkaller #0 [ 53.986603][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.996905][ T6786] Call Trace: [ 54.000187][ T6786] dump_stack+0x18f/0x20d [ 54.004512][ T6786] check_preemption_disabled+0x20d/0x220 [ 54.010131][ T6786] ext4_mb_new_blocks+0xa4d/0x3b70 [ 54.015234][ T6786] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.020668][ T6786] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.026366][ T6786] ext4_ext_map_blocks+0x201b/0x33e0 [ 54.031634][ T6786] ? ext4_ext_release+0x10/0x10 [ 54.036509][ T6786] ? down_write_killable+0x170/0x170 [ 54.041914][ T6786] ? ext4_es_lookup_extent+0x41d/0xd10 [ 54.047376][ T6786] ext4_map_blocks+0x4cb/0x1640 [ 54.052212][ T6786] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.057779][ T6786] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.063304][ T6786] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.069260][ T6786] ? prandom_u32_state+0xe/0x170 [ 54.074175][ T6786] ? __brelse+0x84/0xa0 [ 54.078311][ T6786] ? __ext4_new_inode+0x144/0x55e0 [ 54.083422][ T6786] ext4_getblk+0xad/0x520 [ 54.087755][ T6786] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 54.093464][ T6786] ? ext4_free_inode+0x1700/0x1700 [ 54.098561][ T6786] ext4_bread+0x7c/0x380 [ 54.102782][ T6786] ? ext4_getblk+0x520/0x520 [ 54.107362][ T6786] ? dquot_get_next_dqblk+0x180/0x180 [ 54.112715][ T6786] ext4_append+0x153/0x360 [ 54.117141][ T6786] ext4_mkdir+0x5e0/0xdf0 [ 54.121473][ T6786] ? ext4_rmdir+0xde0/0xde0 [ 54.125957][ T6786] ? security_inode_permission+0xc4/0xf0 [ 54.131569][ T6786] vfs_mkdir+0x419/0x690 [ 54.135804][ T6786] do_mkdirat+0x21e/0x280 [ 54.140133][ T6786] ? __ia32_sys_mknod+0xb0/0xb0 [ 54.144987][ T6786] ? do_syscall_64+0x1c/0xe0 [ 54.149580][ T6786] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.155548][ T6786] do_syscall_64+0x60/0xe0 [ 54.159957][ T6786] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.165830][ T6786] RIP: 0033:0x7f99597ed687 [ 54.170217][ T6786] Code: Bad RIP value. [ 54.174274][ T6786] RSP: 002b:00007ffe0d42d8a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.182662][ T6786] RAX: ffffffffffffffda RBX: 000056285f515985 RCX: 00007f99597ed687 [ 54.190612][ T6786] RDX: 00007ffe0d42d770 RSI: 00000000000001ed RDI: 000056285f515985 [ 54.198561][ T6786] RBP: 00007f99597ed680 R08: 0000000000000100 R09: 0000000000000000 [ 54.206522][ T6786] R10: 000056285f515980 R11: 0000000000000246 R12: 00000000000001ed [ 54.214483][ T6786] R13: 00007ffe0d42da30 R14: 0000000000000000 R15: 0000000000000000 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: [ 56.957118][ T433] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/433 [ 56.966396][ T433] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.972380][ T433] CPU: 0 PID: 433 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 56.981586][ T433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.991653][ T433] Workqueue: writeback wb_workfn (flush-8:0) [ 56.997610][ T433] Call Trace: [ 57.000898][ T433] dump_stack+0x18f/0x20d [ 57.005210][ T433] check_preemption_disabled+0x20d/0x220 [ 57.010926][ T433] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.017345][ T433] ? ext4_find_extent+0x81a/0xad0 [ 57.022348][ T433] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.027783][ T433] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.033479][ T433] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.038762][ T433] ? ext4_ext_release+0x10/0x10 [ 57.043599][ T433] ? down_write_killable+0x170/0x170 [ 57.048870][ T433] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.054317][ T433] ext4_map_blocks+0x4cb/0x1640 [ 57.059149][ T433] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.064341][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.069965][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.075949][ T433] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.081416][ T433] ext4_writepages+0x1a7b/0x33c0 [ 57.086424][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.092098][ T433] ? __lock_acquire+0x2224/0x48b0 [ 57.097169][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.103131][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.109093][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.114701][ T433] ? do_writepages+0xfa/0x2a0 [ 57.119625][ T433] do_writepages+0xfa/0x2a0 [ 57.124125][ T433] ? page_writeback_cpu_online+0x10/0x10 [ 57.129751][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.135400][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.141383][ T433] ? lock_downgrade+0x840/0x840 [ 57.146273][ T433] __writeback_single_inode+0x12a/0x13d0 [ 57.151895][ T433] ? _raw_spin_unlock+0x24/0x40 [ 57.156743][ T433] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.162733][ T433] writeback_sb_inodes+0x515/0xdc0 [ 57.167842][ T433] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.173747][ T433] __writeback_inodes_wb+0xc3/0x250 [ 57.178931][ T433] wb_writeback+0x8db/0xd50 [ 57.183437][ T433] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.189762][ T433] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.195654][ T433] ? cpumask_next+0x3c/0x40 [ 57.200151][ T433] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.205334][ T433] wb_workfn+0xab3/0x1090 [ 57.209666][ T433] ? inode_wait_for_writeback+0x30/0x30 [ 57.215210][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.220734][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.226711][ T433] process_one_work+0x965/0x1690 [ 57.231631][ T433] ? lock_release+0x800/0x800 [ 57.236282][ T433] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.241635][ T433] ? rwlock_bug.part.0+0x90/0x90 [ 57.246556][ T433] worker_thread+0x96/0xe10 [ 57.251042][ T433] ? process_one_work+0x1690/0x1690 [ 57.256218][ T433] kthread+0x3b5/0x4a0 [ 57.260266][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.265970][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.271666][ T433] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.137' (ECDSA) to the list of known hosts. 2020/06/07 14:10:08 fuzzer started 2020/06/07 14:10:09 connecting to host at 10.128.0.26:37839 2020/06/07 14:10:09 checking machine... 2020/06/07 14:10:09 checking revisions... 2020/06/07 14:10:09 testing simple program... [ 59.723486][ T6866] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6866 [ 59.732620][ T6866] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.738865][ T6866] CPU: 1 PID: 6866 Comm: syz-fuzzer Not tainted 5.7.0-next-20200605-syzkaller #0 [ 59.747986][ T6866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.758047][ T6866] Call Trace: [ 59.761389][ T6866] dump_stack+0x18f/0x20d [ 59.765743][ T6866] check_preemption_disabled+0x20d/0x220 [ 59.771377][ T6866] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.776476][ T6866] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.782000][ T6866] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.787713][ T6866] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.792995][ T6866] ? ext4_ext_release+0x10/0x10 [ 59.797835][ T6866] ? down_write_killable+0x170/0x170 [ 59.803116][ T6866] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.808569][ T6866] ext4_map_blocks+0x4cb/0x1640 [ 59.813403][ T6866] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.818591][ T6866] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.824127][ T6866] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.830082][ T6866] ? prandom_u32_state+0xe/0x170 [ 59.835012][ T6866] ? __brelse+0x84/0xa0 [ 59.839147][ T6866] ? __ext4_new_inode+0x144/0x55e0 [ 59.844248][ T6866] ext4_getblk+0xad/0x520 [ 59.848572][ T6866] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.854271][ T6866] ? ext4_free_inode+0x1700/0x1700 [ 59.859358][ T6866] ext4_bread+0x7c/0x380 [ 59.863590][ T6866] ? ext4_getblk+0x520/0x520 [ 59.868157][ T6866] ? dquot_get_next_dqblk+0x180/0x180 [ 59.873508][ T6866] ext4_append+0x153/0x360 [ 59.877925][ T6866] ext4_mkdir+0x5e0/0xdf0 [ 59.882236][ T6866] ? ext4_rmdir+0xde0/0xde0 [ 59.886733][ T6866] ? security_inode_permission+0xc4/0xf0 [ 59.892366][ T6866] vfs_mkdir+0x419/0x690 [ 59.896602][ T6866] do_mkdirat+0x21e/0x280 [ 59.900933][ T6866] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.905769][ T6866] ? do_syscall_64+0x1c/0xe0 [ 59.910367][ T6866] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.916345][ T6866] do_syscall_64+0x60/0xe0 [ 59.920762][ T6866] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.927155][ T6866] RIP: 0033:0x4b02a0 [ 59.931023][ T6866] Code: Bad RIP value. [ 59.935064][ T6866] RSP: 002b:000000c0000cb4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.943455][ T6866] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.951418][ T6866] RDX: 00000000000001c0 RSI: 000000c00030c980 RDI: ffffffffffffff9c [ 59.959367][ T6866] RBP: 000000c0000cb510 R08: 0000000000000000 R09: 0000000000000000 [ 59.967314][ T6866] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.975260][ T6866] R13: 000000000000004d R14: 000000000000004c R15: 0000000000000100 [ 59.999661][ T6868] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6868 [ 60.009188][ T6868] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.015340][ T6868] CPU: 1 PID: 6868 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.024793][ T6868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.034828][ T6868] Call Trace: [ 60.038118][ T6868] dump_stack+0x18f/0x20d [ 60.042464][ T6868] check_preemption_disabled+0x20d/0x220 [ 60.048079][ T6868] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.053174][ T6868] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.058610][ T6868] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.064322][ T6868] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.069588][ T6868] ? ext4_ext_release+0x10/0x10 [ 60.074424][ T6868] ? down_write_killable+0x170/0x170 [ 60.079704][ T6868] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.085417][ T6868] ext4_map_blocks+0x4cb/0x1640 [ 60.090254][ T6868] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.095502][ T6868] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.101062][ T6868] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.107024][ T6868] ? prandom_u32_state+0xe/0x170 [ 60.111945][ T6868] ? __brelse+0x84/0xa0 [ 60.116111][ T6868] ? __ext4_new_inode+0x144/0x55e0 [ 60.121201][ T6868] ext4_getblk+0xad/0x520 [ 60.125526][ T6868] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.131225][ T6868] ? ext4_free_inode+0x1700/0x1700 [ 60.136331][ T6868] ext4_bread+0x7c/0x380 [ 60.140548][ T6868] ? ext4_getblk+0x520/0x520 [ 60.145114][ T6868] ? dquot_get_next_dqblk+0x180/0x180 [ 60.150464][ T6868] ext4_append+0x153/0x360 [ 60.154873][ T6868] ext4_mkdir+0x5e0/0xdf0 [ 60.159184][ T6868] ? ext4_rmdir+0xde0/0xde0 [ 60.163668][ T6868] ? security_inode_permission+0xc4/0xf0 [ 60.169281][ T6868] vfs_mkdir+0x419/0x690 [ 60.173502][ T6868] do_mkdirat+0x21e/0x280 [ 60.177808][ T6868] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.182639][ T6868] ? do_syscall_64+0x1c/0xe0 [ 60.187207][ T6868] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.193166][ T6868] do_syscall_64+0x60/0xe0 [ 60.197559][ T6868] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.203441][ T6868] RIP: 0033:0x45bee7 [ 60.207317][ T6868] Code: Bad RIP value. [ 60.211356][ T6868] RSP: 002b:00007ffe9ec043a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.219929][ T6868] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.227899][ T6868] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe9ec04580 [ 60.235845][ T6868] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000032c0 [ 60.243792][ T6868] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.251745][ T6868] R13: 00007ffe9ec04580 R14: 8421084210842109 R15: 00007ffe9ec0458c [ 60.333008][ T6869] IPVS: ftp: loaded support on port[0] = 21 [ 60.369804][ T6869] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6869 [ 60.379601][ T6869] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.385688][ T6869] CPU: 0 PID: 6869 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.395135][ T6869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.405169][ T6869] Call Trace: [ 60.408443][ T6869] dump_stack+0x18f/0x20d [ 60.412765][ T6869] check_preemption_disabled+0x20d/0x220 [ 60.418392][ T6869] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.423507][ T6869] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.428961][ T6869] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.434677][ T6869] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.440024][ T6869] ? ext4_ext_release+0x10/0x10 [ 60.444875][ T6869] ? down_write_killable+0x170/0x170 [ 60.450142][ T6869] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.457075][ T6869] ext4_map_blocks+0x4cb/0x1640 [ 60.461925][ T6869] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.467099][ T6869] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.472622][ T6869] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.478649][ T6869] ? prandom_u32_state+0xe/0x170 [ 60.483576][ T6869] ? __brelse+0x84/0xa0 [ 60.487734][ T6869] ? __ext4_new_inode+0x144/0x55e0 [ 60.492933][ T6869] ext4_getblk+0xad/0x520 [ 60.497244][ T6869] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.502966][ T6869] ? ext4_free_inode+0x1700/0x1700 [ 60.508054][ T6869] ext4_bread+0x7c/0x380 [ 60.512297][ T6869] ? ext4_getblk+0x520/0x520 [ 60.516864][ T6869] ? dquot_get_next_dqblk+0x180/0x180 [ 60.522216][ T6869] ext4_append+0x153/0x360 [ 60.526630][ T6869] ext4_mkdir+0x5e0/0xdf0 [ 60.530940][ T6869] ? ext4_rmdir+0xde0/0xde0 [ 60.535424][ T6869] ? security_inode_permission+0xc4/0xf0 [ 60.541057][ T6869] vfs_mkdir+0x419/0x690 [ 60.546246][ T6869] do_mkdirat+0x21e/0x280 [ 60.550765][ T6869] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.555605][ T6869] ? do_syscall_64+0x1c/0xe0 [ 60.560210][ T6869] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.566190][ T6869] do_syscall_64+0x60/0xe0 [ 60.570587][ T6869] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.576462][ T6869] RIP: 0033:0x45bee7 [ 60.580349][ T6869] Code: Bad RIP value. [ 60.584402][ T6869] RSP: 002b:00007ffe9ec04298 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.592992][ T6869] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.601146][ T6869] RDX: 00007ffe9ec042e3 RSI: 00000000000001ff RDI: 00007ffe9ec042e0 [ 60.609118][ T6869] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.617092][ T6869] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 60.625042][ T6869] R13: 00007ffe9ec042d0 R14: 0000000000000000 R15: 00007ffe9ec042e0 [ 60.676653][ T6869] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6869 [ 60.686286][ T6869] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.692196][ T6869] CPU: 1 PID: 6869 Comm: syz-executor.0 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 60.701808][ T6869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.711878][ T6869] Call Trace: [ 60.715186][ T6869] dump_stack+0x18f/0x20d [ 60.719533][ T6869] check_preemption_disabled+0x20d/0x220 [ 60.725181][ T6869] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.730310][ T6869] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.735866][ T6869] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.741599][ T6869] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.746889][ T6869] ? ext4_ext_release+0x10/0x10 [ 60.751737][ T6869] ? down_write_killable+0x170/0x170 [ 60.757105][ T6869] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.762600][ T6869] ext4_map_blocks+0x4cb/0x1640 [ 60.767568][ T6869] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.772759][ T6869] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.778301][ T6869] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.784296][ T6869] ? prandom_u32_state+0xe/0x170 [ 60.789391][ T6869] ? __brelse+0x84/0xa0 [ 60.793560][ T6869] ? __ext4_new_inode+0x144/0x55e0 [ 60.798677][ T6869] ext4_getblk+0xad/0x520 [ 60.802991][ T6869] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.808713][ T6869] ? ext4_free_inode+0x1700/0x1700 [ 60.813842][ T6869] ext4_bread+0x7c/0x380 [ 60.818068][ T6869] ? ext4_getblk+0x520/0x520 [ 60.822671][ T6869] ? dquot_get_next_dqblk+0x180/0x180 [ 60.828030][ T6869] ext4_append+0x153/0x360 [ 60.832451][ T6869] ext4_mkdir+0x5e0/0xdf0 [ 60.836768][ T6869] ? ext4_rmdir+0xde0/0xde0 [ 60.841253][ T6869] ? security_inode_permission+0xc4/0xf0 [ 60.846877][ T6869] vfs_mkdir+0x419/0x690 [ 60.851114][ T6869] do_mkdirat+0x21e/0x280 [ 60.855439][ T6869] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.860273][ T6869] ? do_syscall_64+0x1c/0xe0 [ 60.864838][ T6869] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.870794][ T6869] do_syscall_64+0x60/0xe0 [ 60.875199][ T6869] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.881082][ T6869] RIP: 0033:0x45bee7 [ 60.884946][ T6869] Code: Bad RIP value. [ 60.888986][ T6869] RSP: 002b:00007ffe9ec04298 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.897371][ T6869] RAX: ffffffffffffffda RBX: 000000000000ecf5 RCX: 000000000045bee7 [ 60.905588][ T6869] RDX: 00007ffe9ec042e3 RSI: 00000000000001ff RDI: 00007ffe9ec042e0 [ 60.913694][ T6869] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.921745][ T6869] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.929720][ T6869] R13: 00007ffe9ec042d0 R14: 000000000000ece2 R15: 00007ffe9ec042e0 2020/06/07 14:10:10 building call list... [ 61.145722][ T193] tipc: TX() has been purged, node left! [ 62.325776][ T433] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/433 [ 62.335112][ T433] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.341927][ T433] CPU: 0 PID: 433 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.351103][ T433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.361151][ T433] Workqueue: writeback wb_workfn (flush-8:0) [ 62.367127][ T433] Call Trace: [ 62.370416][ T433] dump_stack+0x18f/0x20d [ 62.374905][ T433] check_preemption_disabled+0x20d/0x220 [ 62.380555][ T433] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.385664][ T433] ? ext4_find_extent+0x81a/0xad0 [ 62.390669][ T433] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.396284][ T433] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.401995][ T433] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.407264][ T433] ? ext4_ext_release+0x10/0x10 [ 62.412118][ T433] ? down_write_killable+0x170/0x170 [ 62.417379][ T433] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.422838][ T433] ext4_map_blocks+0x4cb/0x1640 [ 62.427686][ T433] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.432873][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.438402][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.444363][ T433] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.449816][ T433] ext4_writepages+0x1a7b/0x33c0 [ 62.454777][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.460407][ T433] ? __lock_acquire+0x2224/0x48b0 [ 62.465445][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.471429][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.477409][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.483037][ T433] ? do_writepages+0xfa/0x2a0 [ 62.487707][ T433] do_writepages+0xfa/0x2a0 [ 62.492212][ T433] ? page_writeback_cpu_online+0x10/0x10 [ 62.497849][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.503395][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.509370][ T433] ? lock_downgrade+0x840/0x840 [ 62.514223][ T433] __writeback_single_inode+0x12a/0x13d0 [ 62.519855][ T433] ? _raw_spin_unlock+0x24/0x40 [ 62.524700][ T433] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 62.530682][ T433] writeback_sb_inodes+0x515/0xdc0 [ 62.535811][ T433] ? __writeback_single_inode+0x13d0/0x13d0 [ 62.541745][ T433] __writeback_inodes_wb+0xc3/0x250 [ 62.546969][ T433] wb_writeback+0x8db/0xd50 [ 62.551504][ T433] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 62.557875][ T433] ? cpumask_next+0x3c/0x40 [ 62.562388][ T433] ? get_nr_dirty_inodes+0xd6/0x130 [ 62.567625][ T433] wb_workfn+0x9bc/0x1090 executing program [ 62.571965][ T433] ? inode_wait_for_writeback+0x30/0x30 [ 62.577516][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.583059][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.589081][ T433] process_one_work+0x965/0x1690 [ 62.594029][ T433] ? lock_release+0x800/0x800 [ 62.598703][ T433] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.604075][ T433] ? rwlock_bug.part.0+0x90/0x90 [ 62.609021][ T433] worker_thread+0x96/0xe10 [ 62.613533][ T433] ? process_one_work+0x1690/0x1690 [ 62.618728][ T433] kthread+0x3b5/0x4a0 [ 62.622789][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.628603][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.634337][ T433] ret_from_fork+0x1f/0x30 [ 62.642028][ T433] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/433 [ 62.651347][ T433] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.657345][ T433] CPU: 0 PID: 433 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.666626][ T433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.676726][ T433] Workqueue: writeback wb_workfn (flush-8:0) [ 62.682700][ T433] Call Trace: [ 62.685991][ T433] dump_stack+0x18f/0x20d [ 62.690326][ T433] check_preemption_disabled+0x20d/0x220 [ 62.695956][ T433] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.701061][ T433] ? ext4_find_extent+0x81a/0xad0 [ 62.706090][ T433] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.711622][ T433] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.717360][ T433] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.722675][ T433] ? ext4_ext_release+0x10/0x10 [ 62.727563][ T433] ? down_write_killable+0x170/0x170 [ 62.732880][ T433] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.738349][ T433] ext4_map_blocks+0x4cb/0x1640 [ 62.743212][ T433] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.748444][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.753988][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.759968][ T433] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.765426][ T433] ext4_writepages+0x1a7b/0x33c0 [ 62.770421][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.776224][ T433] ? __lock_acquire+0x2224/0x48b0 [ 62.781262][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.787250][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 62.793240][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.798871][ T433] ? do_writepages+0xfa/0x2a0 [ 62.803544][ T433] do_writepages+0xfa/0x2a0 [ 62.808060][ T433] ? page_writeback_cpu_online+0x10/0x10 [ 62.813721][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.819278][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.825263][ T433] ? lock_downgrade+0x840/0x840 [ 62.830128][ T433] __writeback_single_inode+0x12a/0x13d0 [ 62.835766][ T433] ? _raw_spin_unlock+0x24/0x40 [ 62.840615][ T433] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 62.847031][ T433] writeback_sb_inodes+0x515/0xdc0 [ 62.852154][ T433] ? __writeback_single_inode+0x13d0/0x13d0 [ 62.858066][ T433] __writeback_inodes_wb+0xc3/0x250 [ 62.863271][ T433] wb_writeback+0x8db/0xd50 [ 62.867785][ T433] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 62.874138][ T433] ? cpumask_next+0x3c/0x40 [ 62.878650][ T433] ? get_nr_dirty_inodes+0xd6/0x130 [ 62.883862][ T433] wb_workfn+0x9bc/0x1090 [ 62.888199][ T433] ? inode_wait_for_writeback+0x30/0x30 [ 62.893746][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.899288][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.905272][ T433] process_one_work+0x965/0x1690 [ 62.910235][ T433] ? lock_release+0x800/0x800 [ 62.914907][ T433] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.920277][ T433] ? rwlock_bug.part.0+0x90/0x90 [ 62.925224][ T433] worker_thread+0x96/0xe10 [ 62.929746][ T433] ? process_one_work+0x1690/0x1690 [ 62.934940][ T433] kthread+0x3b5/0x4a0 [ 62.939002][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.944712][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.950431][ T433] ret_from_fork+0x1f/0x30 [ 62.957216][ T433] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/433 [ 62.966621][ T433] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.972514][ T433] CPU: 0 PID: 433 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 62.981701][ T433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.991769][ T433] Workqueue: writeback wb_workfn (flush-8:0) [ 62.997749][ T433] Call Trace: [ 63.001041][ T433] dump_stack+0x18f/0x20d [ 63.005376][ T433] check_preemption_disabled+0x20d/0x220 [ 63.011004][ T433] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.016110][ T433] ? ext4_find_extent+0x81a/0xad0 [ 63.021135][ T433] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.026591][ T433] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.032313][ T433] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.037602][ T433] ? ext4_ext_release+0x10/0x10 [ 63.042473][ T433] ? down_write_killable+0x170/0x170 [ 63.047751][ T433] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.053209][ T433] ext4_map_blocks+0x4cb/0x1640 [ 63.058084][ T433] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.063303][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.068845][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.074821][ T433] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.080280][ T433] ext4_writepages+0x1a7b/0x33c0 [ 63.085239][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.090865][ T433] ? __lock_acquire+0x2224/0x48b0 [ 63.095904][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.101920][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.108032][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.113668][ T433] ? do_writepages+0xfa/0x2a0 [ 63.118356][ T433] do_writepages+0xfa/0x2a0 [ 63.122885][ T433] ? page_writeback_cpu_online+0x10/0x10 [ 63.128524][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.134160][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.140134][ T433] ? lock_downgrade+0x840/0x840 [ 63.144986][ T433] __writeback_single_inode+0x12a/0x13d0 [ 63.150616][ T433] ? _raw_spin_unlock+0x24/0x40 [ 63.155462][ T433] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 63.161443][ T433] writeback_sb_inodes+0x515/0xdc0 [ 63.166566][ T433] ? __writeback_single_inode+0x13d0/0x13d0 [ 63.172490][ T433] __writeback_inodes_wb+0xc3/0x250 [ 63.177694][ T433] wb_writeback+0x8db/0xd50 [ 63.182204][ T433] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 63.188536][ T433] ? cpumask_next+0x3c/0x40 [ 63.193033][ T433] ? get_nr_dirty_inodes+0xd6/0x130 [ 63.198236][ T433] wb_workfn+0x9bc/0x1090 [ 63.202573][ T433] ? inode_wait_for_writeback+0x30/0x30 [ 63.208128][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.213669][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.219663][ T433] process_one_work+0x965/0x1690 [ 63.224611][ T433] ? lock_release+0x800/0x800 [ 63.229293][ T433] ? pwq_dec_nr_in_flight+0x310/0x310 [ 63.234664][ T433] ? rwlock_bug.part.0+0x90/0x90 [ 63.239610][ T433] worker_thread+0x96/0xe10 [ 63.244157][ T433] ? process_one_work+0x1690/0x1690 [ 63.249351][ T433] kthread+0x3b5/0x4a0 [ 63.253424][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.259134][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.264877][ T433] ret_from_fork+0x1f/0x30 [ 63.274046][ T433] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/433 [ 63.283309][ T433] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.289306][ T433] CPU: 0 PID: 433 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200605-syzkaller #0 [ 63.298502][ T433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.308578][ T433] Workqueue: writeback wb_workfn (flush-8:0) [ 63.314565][ T433] Call Trace: [ 63.317875][ T433] dump_stack+0x18f/0x20d [ 63.322223][ T433] check_preemption_disabled+0x20d/0x220 [ 63.327862][ T433] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.332979][ T433] ? ext4_find_extent+0x81a/0xad0 [ 63.338021][ T433] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.343474][ T433] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.349220][ T433] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.354512][ T433] ? ext4_ext_release+0x10/0x10 [ 63.359380][ T433] ? down_write_killable+0x170/0x170 [ 63.364658][ T433] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.370121][ T433] ext4_map_blocks+0x4cb/0x1640 [ 63.374993][ T433] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.380215][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.385782][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.391781][ T433] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.397257][ T433] ext4_writepages+0x1a7b/0x33c0 [ 63.402702][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.402734][ T433] ? __lock_acquire+0x2224/0x48b0 [ 63.413432][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.413454][ T433] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.425415][ T433] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.425443][ T433] ? do_writepages+0xfa/0x2a0 [ 63.435745][ T433] do_writepages+0xfa/0x2a0 [ 63.440248][ T433] ? page_writeback_cpu_online+0x10/0x10 [ 63.446233][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.451855][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.457879][ T433] ? lock_downgrade+0x840/0x840 [ 63.462717][ T433] __writeback_single_inode+0x12a/0x13d0 [ 63.468333][ T433] ? _raw_spin_unlock+0x24/0x40 [ 63.473162][ T433] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 63.479179][ T433] writeback_sb_inodes+0x515/0xdc0 [ 63.484445][ T433] ? __writeback_single_inode+0x13d0/0x13d0 [ 63.490358][ T433] __writeback_inodes_wb+0xc3/0x250 [ 63.495555][ T433] wb_writeback+0x8db/0xd50 [ 63.500045][ T433] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 63.506359][ T433] ? cpumask_next+0x3c/0x40 [ 63.510864][ T433] ? get_nr_dirty_inodes+0xd6/0x130 [ 63.516062][ T433] wb_workfn+0x9bc/0x1090 [ 63.520379][ T433] ? inode_wait_for_writeback+0x30/0x30 [ 63.525909][ T433] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.531431][ T433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.537415][ T433] process_one_work+0x965/0x1690 [ 63.542420][ T433] ? lock_release+0x800/0x800 [ 63.547237][ T433] ? pwq_dec_nr_in_flight+0x310/0x310 [ 63.552620][ T433] ? rwlock_bug.part.0+0x90/0x90 [ 63.557560][ T433] worker_thread+0x96/0xe10 [ 63.562049][ T433] ? process_one_work+0x1690/0x1690 [ 63.567245][ T433] kthread+0x3b5/0x4a0 [ 63.571290][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.576990][ T433] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.582703][ T433] ret_from_fork+0x1f/0x30 [ 63.600373][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 63.609741][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.615819][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 63.624930][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.634978][ T1155] Call Trace: [ 63.638322][ T1155] dump_stack+0x18f/0x20d [ 63.642637][ T1155] check_preemption_disabled+0x20d/0x220 [ 63.648250][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.653339][ T1155] ? ext4_find_extent+0x81a/0xad0 [ 63.658378][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.664173][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.669875][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.675207][ T1155] ? ext4_ext_release+0x10/0x10 [ 63.680044][ T1155] ? down_write_killable+0x170/0x170 [ 63.685307][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.690747][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 63.695599][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.700988][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.706597][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.712561][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.718004][ T1155] ext4_writepages+0x1a7b/0x33c0 [ 63.723311][ T1155] ? lock_release+0x710/0x800 [ 63.728002][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.733636][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.739254][ T1155] ? do_writepages+0xfa/0x2a0 [ 63.744049][ T1155] do_writepages+0xfa/0x2a0 [ 63.748544][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 63.754284][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 63.759323][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 63.764502][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 63.769356][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.775076][ T1155] ? collapse_file+0x35a2/0x4330 [ 63.779990][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.786239][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.791433][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.797425][ T1155] collapse_file+0x35ac/0x4330 [ 63.802411][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 63.807899][ T1155] ? khugepaged+0x2506/0x3fc0 [ 63.812569][ T1155] ? xas_find+0x31a/0x880 [ 63.816942][ T1155] ? check_preemption_disabled+0x38/0x220 [ 63.822689][ T1155] khugepaged+0x3041/0x3fc0 [ 63.827202][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.832850][ T1155] ? lock_downgrade+0x840/0x840 [ 63.837698][ T1155] ? finish_wait+0x260/0x260 [ 63.842287][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.849657][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.855627][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 63.860636][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.866302][ T1155] kthread+0x3b5/0x4a0 [ 63.870409][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.876262][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.882099][ T1155] ret_from_fork+0x1f/0x30 [ 63.916534][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 63.925638][ T1155] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.931537][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-next-20200605-syzkaller #0 [ 63.940813][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.950863][ T1155] Call Trace: [ 63.954144][ T1155] dump_stack+0x18f/0x20d [ 63.958458][ T1155] check_preemption_disabled+0x20d/0x220 [ 63.964163][ T1155] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.969260][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.974707][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 63.980862][ T1155] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.986147][ T1155] ? ext4_ext_release+0x10/0x10 [ 63.990999][ T1155] ? down_write_killable+0x170/0x170 [ 63.996263][ T1155] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.001721][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 64.006553][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.011736][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.017347][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.023321][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.028756][ T1155] ext4_writepages+0x1a7b/0x33c0 [ 64.033692][ T1155] ? lock_release+0x710/0x800 [ 64.038376][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.044062][ T1155] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.049684][ T1155] ? do_writepages+0xfa/0x2a0 [ 64.054340][ T1155] do_writepages+0xfa/0x2a0 [ 64.058917][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 64.064558][ T1155] ? do_raw_spin_lock+0x120/0x2d0 [ 64.069591][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 64.074795][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 64.079651][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 64.085383][ T1155] ? collapse_file+0x35a2/0x4330 [ 64.090320][ T1155] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 64.096416][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 64.101611][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.107577][ T1155] collapse_file+0x35ac/0x4330 [ 64.112348][ T1155] ? collapse_huge_page+0x4350/0x4350 [ 64.117886][ T1155] ? khugepaged+0x2506/0x3fc0 [ 64.122570][ T1155] ? xas_find+0x31a/0x880 [ 64.126888][ T1155] ? check_preemption_disabled+0x38/0x220 [ 64.132590][ T1155] khugepaged+0x3041/0x3fc0 [ 64.137109][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.142728][ T1155] ? lock_downgrade+0x840/0x840 [ 64.147562][ T1155] ? finish_wait+0x260/0x260 [ 64.152149][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 64.157935][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.163895][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 64.168921][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 64.174648][ T1155] kthread+0x3b5/0x4a0 [ 64.178704][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.184400][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.190122][ T1155] ret_from_fork+0x1f/0x30 [ 64.270811][ T6895] can: request_module (can-proto-0) failed. [ 64.511808][ T6895] can: request_module (can-proto-0) failed. [ 64.523615][ T6895] can: request_module (can-proto-0) failed.