Starting Load/Save RF Kill Switch Status... [ 53.466762][ T6731] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6731 [ 53.476506][ T6731] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.482692][ T6731] CPU: 1 PID: 6731 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 53.490925][ T6731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.500976][ T6731] Call Trace: [ 53.504268][ T6731] dump_stack+0x18f/0x20d [ 53.508582][ T6731] debug_smp_processor_id.cold+0x88/0x9b [ 53.514189][ T6731] ext4_mb_new_blocks+0xa4d/0x3b70 [ 53.519287][ T6731] ? ext4_ext_search_right+0x2ca/0xb20 [ 53.524723][ T6731] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 53.530444][ T6731] ext4_ext_map_blocks+0x201b/0x33e0 [ 53.535711][ T6731] ? ext4_ext_release+0x10/0x10 [ 53.540551][ T6731] ? down_write_killable+0x170/0x170 [ 53.545811][ T6731] ? ext4_es_lookup_extent+0x41d/0xd10 [ 53.551278][ T6731] ext4_map_blocks+0x4cb/0x1640 [ 53.556111][ T6731] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 53.561287][ T6731] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.566809][ T6731] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 53.572825][ T6731] ? prandom_u32_state+0xe/0x170 [ 53.577779][ T6731] ? __brelse+0x84/0xa0 [ 53.581969][ T6731] ? __ext4_new_inode+0x144/0x55e0 [ 53.587062][ T6731] ext4_getblk+0xad/0x520 [ 53.591374][ T6731] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 53.597090][ T6731] ? ext4_free_inode+0x1700/0x1700 [ 53.602189][ T6731] ext4_bread+0x7c/0x380 [ 53.606418][ T6731] ? ext4_getblk+0x520/0x520 [ 53.611029][ T6731] ? dquot_get_next_dqblk+0x180/0x180 [ 53.616426][ T6731] ext4_append+0x153/0x360 [ 53.620854][ T6731] ext4_mkdir+0x5e0/0xdf0 [ 53.625166][ T6731] ? ext4_rmdir+0xde0/0xde0 [ 53.629652][ T6731] ? security_inode_permission+0xc4/0xf0 [ 53.635384][ T6731] vfs_mkdir+0x419/0x690 [ 53.639647][ T6731] do_mkdirat+0x21e/0x280 [ 53.643979][ T6731] ? __ia32_sys_mknod+0xb0/0xb0 [ 53.648862][ T6731] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.654826][ T6731] ? do_syscall_64+0x21/0x7d0 [ 53.659482][ T6731] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.665493][ T6731] do_syscall_64+0xf6/0x7d0 [ 53.670026][ T6731] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 53.675916][ T6731] RIP: 0033:0x7f9a3ce3b687 [ 53.680363][ T6731] Code: Bad RIP value. [ 53.684404][ T6731] RSP: 002b:00007ffeef86ab08 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.692791][ T6731] RAX: ffffffffffffffda RBX: 000055cbfbb31985 RCX: 00007f9a3ce3b687 [ 53.700738][ T6731] RDX: 00007ffeef86a9d0 RSI: 00000000000001ed RDI: 000055cbfbb31985 [ 53.708685][ T6731] RBP: 00007f9a3ce3b680 R08: 0000000000000100 R09: 0000000000000000 [ 53.716645][ T6731] R10: 000055cbfbb31980 R11: 0000000000000246 R12: 00000000000001ed [ 53.724591][ T6731] R13: 00007ffeef86ac90 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.538327][ T405] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:8/405 [ 57.547572][ T405] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.553582][ T405] CPU: 0 PID: 405 Comm: kworker/u4:8 Not tainted 5.7.0-syzkaller #0 [ 57.561556][ T405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.572380][ T405] Workqueue: writeback wb_workfn (flush-8:0) [ 57.578336][ T405] Call Trace: [ 57.581621][ T405] dump_stack+0x18f/0x20d [ 57.585937][ T405] debug_smp_processor_id.cold+0x88/0x9b [ 57.591548][ T405] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.596638][ T405] ? ext4_find_extent+0x81a/0xad0 [ 57.601655][ T405] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.607211][ T405] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.612967][ T405] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.618243][ T405] ? ext4_ext_release+0x10/0x10 [ 57.623087][ T405] ? down_write_killable+0x170/0x170 [ 57.628433][ T405] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.633879][ T405] ? debug_smp_processor_id+0x2f/0x185 [ 57.639370][ T405] ext4_map_blocks+0x4cb/0x1640 [ 57.644220][ T405] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.649398][ T405] ? debug_smp_processor_id+0x2f/0x185 [ 57.654843][ T405] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.660395][ T405] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.666358][ T405] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.671832][ T405] ext4_writepages+0x1a7b/0x33c0 [ 57.676766][ T405] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.682376][ T405] ? __lock_acquire+0x2224/0x48b0 [ 57.687399][ T405] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.693357][ T405] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.699316][ T405] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.704923][ T405] ? do_writepages+0xfa/0x2a0 [ 57.709591][ T405] do_writepages+0xfa/0x2a0 [ 57.714076][ T405] ? page_writeback_cpu_online+0x10/0x10 [ 57.719711][ T405] ? debug_smp_processor_id+0x2f/0x185 [ 57.725160][ T405] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.730694][ T405] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.736648][ T405] ? lock_downgrade+0x840/0x840 [ 57.741494][ T405] __writeback_single_inode+0x12a/0x13d0 [ 57.747117][ T405] ? _raw_spin_unlock+0x24/0x40 [ 57.751956][ T405] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.757912][ T405] writeback_sb_inodes+0x515/0xdc0 [ 57.763022][ T405] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.768903][ T405] __writeback_inodes_wb+0xc3/0x250 [ 57.774097][ T405] wb_writeback+0x8db/0xd50 [ 57.778581][ T405] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.784902][ T405] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.790775][ T405] ? cpumask_next+0x3c/0x40 [ 57.795288][ T405] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.800482][ T405] wb_workfn+0xab3/0x1090 [ 57.804791][ T405] ? inode_wait_for_writeback+0x30/0x30 [ 57.810327][ T405] ? debug_smp_processor_id+0x2f/0x185 [ 57.815765][ T405] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.821304][ T405] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.827281][ T405] process_one_work+0x965/0x1690 [ 57.832200][ T405] ? lock_release+0x800/0x800 [ 57.836874][ T405] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.842240][ T405] ? rwlock_bug.part.0+0x90/0x90 [ 57.847159][ T405] worker_thread+0x96/0xe10 [ 57.851645][ T405] ? process_one_work+0x1690/0x1690 [ 57.856833][ T405] kthread+0x3b5/0x4a0 [ 57.860892][ T405] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.866586][ T405] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.872281][ T405] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.18' (ECDSA) to the list of known hosts. 2020/06/13 06:49:49 fuzzer started 2020/06/13 06:49:49 connecting to host at 10.128.0.26:43351 2020/06/13 06:49:49 checking machine... 2020/06/13 06:49:49 checking revisions... 2020/06/13 06:49:49 testing simple program... [ 58.869609][ T6803] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6803 [ 58.878696][ T6803] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.884574][ T6803] CPU: 1 PID: 6803 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.892435][ T6803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.902490][ T6803] Call Trace: [ 58.905781][ T6803] dump_stack+0x18f/0x20d [ 58.910091][ T6803] debug_smp_processor_id.cold+0x88/0x9b [ 58.915700][ T6803] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.920817][ T6803] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.926250][ T6803] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.931967][ T6803] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.937236][ T6803] ? ext4_ext_release+0x10/0x10 [ 58.942095][ T6803] ? down_write_killable+0x170/0x170 [ 58.947375][ T6803] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.952901][ T6803] ext4_map_blocks+0x4cb/0x1640 [ 58.957740][ T6803] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.962916][ T6803] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.968458][ T6803] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.974413][ T6803] ? prandom_u32_state+0xe/0x170 [ 58.979335][ T6803] ? __brelse+0x84/0xa0 [ 58.983479][ T6803] ? __ext4_new_inode+0x144/0x55e0 [ 58.988571][ T6803] ext4_getblk+0xad/0x520 [ 58.992895][ T6803] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.998596][ T6803] ? ext4_free_inode+0x1700/0x1700 [ 59.003684][ T6803] ext4_bread+0x7c/0x380 [ 59.007904][ T6803] ? ext4_getblk+0x520/0x520 [ 59.012469][ T6803] ? dquot_get_next_dqblk+0x180/0x180 [ 59.017823][ T6803] ext4_append+0x153/0x360 [ 59.022236][ T6803] ext4_mkdir+0x5e0/0xdf0 [ 59.026562][ T6803] ? ext4_rmdir+0xde0/0xde0 [ 59.031076][ T6803] ? security_inode_permission+0xc4/0xf0 [ 59.036705][ T6803] vfs_mkdir+0x419/0x690 [ 59.040929][ T6803] do_mkdirat+0x21e/0x280 [ 59.045238][ T6803] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.050082][ T6803] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.056040][ T6803] ? do_syscall_64+0x21/0x7d0 [ 59.060714][ T6803] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.066800][ T6803] do_syscall_64+0xf6/0x7d0 [ 59.071289][ T6803] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.077204][ T6803] RIP: 0033:0x4b02a0 [ 59.081069][ T6803] Code: Bad RIP value. [ 59.085110][ T6803] RSP: 002b:000000c0002334b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.093496][ T6803] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.101445][ T6803] RDX: 00000000000001c0 RSI: 000000c00009c6c0 RDI: ffffffffffffff9c [ 59.109393][ T6803] RBP: 000000c000233510 R08: 0000000000000000 R09: 0000000000000000 [ 59.117361][ T6803] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.125326][ T6803] R13: 0000000000000037 R14: 0000000000000036 R15: 0000000000000100 [ 59.151748][ T6819] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6819 [ 59.161280][ T6819] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.167179][ T6819] CPU: 0 PID: 6819 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.175405][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.185438][ T6819] Call Trace: [ 59.188727][ T6819] dump_stack+0x18f/0x20d [ 59.193037][ T6819] debug_smp_processor_id.cold+0x88/0x9b [ 59.198682][ T6819] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.203795][ T6819] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.209228][ T6819] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.214929][ T6819] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.220196][ T6819] ? ext4_ext_release+0x10/0x10 [ 59.225032][ T6819] ? down_write_killable+0x170/0x170 [ 59.230296][ T6819] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.235735][ T6819] ext4_map_blocks+0x4cb/0x1640 [ 59.240566][ T6819] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.245740][ T6819] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.251275][ T6819] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.257229][ T6819] ? prandom_u32_state+0xe/0x170 [ 59.262143][ T6819] ? __brelse+0x84/0xa0 [ 59.266288][ T6819] ? __ext4_new_inode+0x144/0x55e0 [ 59.271380][ T6819] ext4_getblk+0xad/0x520 [ 59.275686][ T6819] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.281397][ T6819] ? ext4_free_inode+0x1700/0x1700 [ 59.286486][ T6819] ext4_bread+0x7c/0x380 [ 59.290709][ T6819] ? ext4_getblk+0x520/0x520 [ 59.295276][ T6819] ? dquot_get_next_dqblk+0x180/0x180 [ 59.300628][ T6819] ext4_append+0x153/0x360 [ 59.305022][ T6819] ext4_mkdir+0x5e0/0xdf0 [ 59.309531][ T6819] ? ext4_rmdir+0xde0/0xde0 [ 59.314012][ T6819] ? security_inode_permission+0xc4/0xf0 [ 59.319626][ T6819] vfs_mkdir+0x419/0x690 [ 59.323865][ T6819] do_mkdirat+0x21e/0x280 [ 59.328174][ T6819] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.333017][ T6819] ? do_fast_syscall_32+0xcc/0xe90 [ 59.338107][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.344081][ T6819] do_fast_syscall_32+0x270/0xe90 [ 59.349099][ T6819] entry_SYSENTER_compat+0x70/0x7f [ 59.427200][ T6820] IPVS: ftp: loaded support on port[0] = 21 [ 59.459802][ T6820] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6820 [ 59.469425][ T6820] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.475345][ T6820] CPU: 0 PID: 6820 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.483577][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.493608][ T6820] Call Trace: [ 59.496896][ T6820] dump_stack+0x18f/0x20d [ 59.501224][ T6820] debug_smp_processor_id.cold+0x88/0x9b [ 59.506833][ T6820] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.512017][ T6820] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.517451][ T6820] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.523152][ T6820] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.528437][ T6820] ? ext4_ext_release+0x10/0x10 [ 59.533274][ T6820] ? down_write_killable+0x170/0x170 [ 59.538533][ T6820] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.543985][ T6820] ext4_map_blocks+0x4cb/0x1640 [ 59.548831][ T6820] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.554009][ T6820] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.559532][ T6820] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.565485][ T6820] ? prandom_u32_state+0xe/0x170 [ 59.570402][ T6820] ? __brelse+0x84/0xa0 [ 59.574542][ T6820] ? __ext4_new_inode+0x144/0x55e0 [ 59.579630][ T6820] ext4_getblk+0xad/0x520 [ 59.583935][ T6820] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.589631][ T6820] ? ext4_free_inode+0x1700/0x1700 [ 59.594718][ T6820] ext4_bread+0x7c/0x380 [ 59.598951][ T6820] ? ext4_getblk+0x520/0x520 [ 59.603524][ T6820] ? dquot_get_next_dqblk+0x180/0x180 [ 59.608877][ T6820] ext4_append+0x153/0x360 [ 59.613287][ T6820] ext4_mkdir+0x5e0/0xdf0 [ 59.617601][ T6820] ? ext4_rmdir+0xde0/0xde0 [ 59.622085][ T6820] ? security_inode_permission+0xc4/0xf0 2020/06/13 06:49:50 building call list... [ 59.627703][ T6820] vfs_mkdir+0x419/0x690 [ 59.631926][ T6820] do_mkdirat+0x21e/0x280 [ 59.636234][ T6820] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.641081][ T6820] ? do_fast_syscall_32+0xcc/0xe90 [ 59.646257][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.652229][ T6820] do_fast_syscall_32+0x270/0xe90 [ 59.657232][ T6820] entry_SYSENTER_compat+0x70/0x7f [ 59.937581][ T405] tipc: TX() has been purged, node left! executing program [ 61.618347][ T6801] can: request_module (can-proto-0) failed. [ 61.965174][ T6801] can: request_module (can-proto-0) failed. [ 61.976421][ T6801] can: request_module (can-proto-0) failed. [ 62.183097][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 62.192500][ T1158] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.198722][ T1158] CPU: 1 PID: 1158 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.206610][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.216650][ T1158] Call Trace: [ 62.219974][ T1158] dump_stack+0x18f/0x20d [ 62.224290][ T1158] debug_smp_processor_id.cold+0x88/0x9b [ 62.229917][ T1158] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.235022][ T1158] ? ext4_find_extent+0x81a/0xad0 [ 62.240049][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.245500][ T1158] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 62.251216][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.256496][ T1158] ? ext4_ext_release+0x10/0x10 [ 62.261332][ T1158] ? down_write_killable+0x170/0x170 [ 62.266591][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.272048][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 62.276894][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.282086][ T1158] ? debug_smp_processor_id+0x2f/0x185 [ 62.287523][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.293043][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.298999][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.304437][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 62.309378][ T1158] ? mark_lock+0x70/0xdd0 [ 62.313705][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.319440][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.325049][ T1158] ? do_writepages+0xfa/0x2a0 [ 62.329718][ T1158] do_writepages+0xfa/0x2a0 [ 62.334200][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 62.339831][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 62.344845][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 62.350019][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 62.354859][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.360570][ T1158] ? collapse_file+0x35a2/0x4330 [ 62.365482][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.371546][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.376730][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.382691][ T1158] collapse_file+0x35ac/0x4330 [ 62.387522][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 62.392897][ T1158] ? khugepaged+0x2506/0x3fc0 [ 62.397566][ T1158] ? xas_find+0x31a/0x880 [ 62.401884][ T1158] khugepaged+0x3041/0x3fc0 [ 62.406398][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.412026][ T1158] ? lock_downgrade+0x840/0x840 [ 62.416881][ T1158] ? finish_wait+0x260/0x260 [ 62.421511][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.427299][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.433262][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 62.438286][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.443923][ T1158] kthread+0x3b5/0x4a0 [ 62.447990][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.453686][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.459440][ T1158] ret_from_fork+0x24/0x30 [ 62.537777][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 62.546912][ T1158] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.552813][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.560773][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.570803][ T1158] Call Trace: [ 62.574073][ T1158] dump_stack+0x18f/0x20d [ 62.578411][ T1158] debug_smp_processor_id.cold+0x88/0x9b [ 62.584081][ T1158] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.589186][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.594628][ T1158] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.600765][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.606055][ T1158] ? ext4_ext_release+0x10/0x10 [ 62.610896][ T1158] ? down_write_killable+0x170/0x170 [ 62.616158][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.621598][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 62.626590][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.631773][ T1158] ? debug_smp_processor_id+0x2f/0x185 [ 62.637274][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.642804][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.648788][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.654252][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 62.659178][ T1158] ? mark_lock+0x70/0xdd0 [ 62.663494][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.669135][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.674765][ T1158] ? do_writepages+0xfa/0x2a0 [ 62.679419][ T1158] do_writepages+0xfa/0x2a0 [ 62.683904][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 62.689517][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 62.694517][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 62.699694][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 62.704543][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.710238][ T1158] ? collapse_file+0x35a2/0x4330 [ 62.715153][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.721223][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.726400][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.732389][ T1158] collapse_file+0x35ac/0x4330 [ 62.737173][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 62.742523][ T1158] ? khugepaged+0x2506/0x3fc0 [ 62.747247][ T1158] ? xas_find+0x31a/0x880 [ 62.751574][ T1158] khugepaged+0x3041/0x3fc0 [ 62.756114][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.761740][ T1158] ? lock_downgrade+0x840/0x840 [ 62.766591][ T1158] ? finish_wait+0x260/0x260 [ 62.771172][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.776969][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.782927][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 62.787927][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.793535][ T1158] kthread+0x3b5/0x4a0 [ 62.797597][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.803291][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.808987][ T1158] ret_from_fork+0x24/0x30 [ 62.851931][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 62.861618][ T1158] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.867618][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 62.875538][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.885571][ T1158] Call Trace: [ 62.888849][ T1158] dump_stack+0x18f/0x20d [ 62.893160][ T1158] debug_smp_processor_id.cold+0x88/0x9b [ 62.898768][ T1158] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.903867][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.909360][ T1158] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.915497][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.920763][ T1158] ? ext4_ext_release+0x10/0x10 [ 62.925687][ T1158] ? down_write_killable+0x170/0x170 [ 62.930964][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.936403][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 62.941235][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.946446][ T1158] ? debug_smp_processor_id+0x2f/0x185 [ 62.951888][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.957412][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.963494][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.968995][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 62.973921][ T1158] ? mark_lock+0x70/0xdd0 [ 62.978240][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.983973][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.989621][ T1158] ? do_writepages+0xfa/0x2a0 [ 62.994276][ T1158] do_writepages+0xfa/0x2a0 [ 62.998792][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 63.004402][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 63.009404][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 63.014594][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 63.019616][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 63.025317][ T1158] ? collapse_file+0x35a2/0x4330 [ 63.030236][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 63.036284][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 63.041460][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.047437][ T1158] collapse_file+0x35ac/0x4330 [ 63.052189][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 63.057557][ T1158] ? khugepaged+0x2506/0x3fc0 [ 63.062220][ T1158] ? xas_find+0x31a/0x880 [ 63.066543][ T1158] khugepaged+0x3041/0x3fc0 [ 63.071037][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.076644][ T1158] ? lock_downgrade+0x840/0x840 [ 63.081472][ T1158] ? finish_wait+0x260/0x260 [ 63.086040][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.091820][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.097779][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 63.102801][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 63.108410][ T1158] kthread+0x3b5/0x4a0 [ 63.112452][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.118145][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.123861][ T1158] ret_from_fork+0x24/0x30