[ 50.049205][ T6757] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.055103][ T6757] RIP: 0033:0x7fe01c16b687 [ 50.059525][ T6757] Code: Bad RIP value. [ 50.063594][ T6757] RSP: 002b:00007ffef1de8148 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 50.072189][ T6757] RAX: ffffffffffffffda RBX: 000055d7e8498985 RCX: 00007fe01c16b687 [ 50.080202][ T6757] RDX: 00007ffef1de8010 RSI: 00000000000001ed RDI: 000055d7e8498985 [ 50.088185][ T6757] RBP: 00007fe01c16b680 R08: 0000000000000100 R09: 0000000000000000 [ 50.096275][ T6757] R10: 000055d7e8498980 R11: 0000000000000246 R12: 00000000000001ed [ 50.104258][ T6757] R13: 00007ffef1de82d0 R14: 0000000000000000 R15: 0000000000000000 [ 53.021276][ T6763] scp (6763) used greatest stack depth: 21440 bytes left [ 56.471274][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 56.480347][ T21] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.486367][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 56.495475][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.505546][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 56.511529][ T21] Call Trace: [ 56.514824][ T21] dump_stack+0x18f/0x20d [ 56.519157][ T21] check_preemption_disabled+0x20d/0x220 [ 56.524876][ T21] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.530057][ T21] ? ext4_find_extent+0x81a/0xad0 [ 56.535606][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.541057][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.546765][ T21] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.552040][ T21] ? ext4_ext_release+0x10/0x10 [ 56.556898][ T21] ? down_write_killable+0x170/0x170 [ 56.562175][ T21] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.567618][ T21] ext4_map_blocks+0x4cb/0x1640 [ 56.572457][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.577636][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.583179][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.589154][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.594614][ T21] ext4_writepages+0x1a83/0x33c0 [ 56.599540][ T21] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.605171][ T21] ? __lock_acquire+0x2224/0x48b0 [ 56.610184][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.616148][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.622107][ T21] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.627735][ T21] ? do_writepages+0xf3/0x2a0 [ 56.632405][ T21] do_writepages+0xf3/0x2a0 [ 56.636911][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 56.642561][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.648108][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.654084][ T21] ? lock_downgrade+0x840/0x840 [ 56.659005][ T21] __writeback_single_inode+0x12a/0x13d0 [ 56.664650][ T21] ? _raw_spin_unlock+0x24/0x40 [ 56.669844][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.676001][ T21] writeback_sb_inodes+0x515/0xdc0 [ 56.681180][ T21] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.687186][ T21] __writeback_inodes_wb+0xc3/0x250 [ 56.693103][ T21] wb_writeback+0x8c8/0xd40 [ 56.697706][ T21] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 56.704050][ T21] ? cpumask_next+0x3c/0x40 [ 56.708789][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.714007][ T21] wb_workfn+0xab3/0x1090 [ 56.718344][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 56.723916][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.729604][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.735593][ T21] process_one_work+0x965/0x1690 [ 56.740532][ T21] ? lock_release+0x800/0x800 [ 56.745193][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.750556][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 56.756173][ T21] worker_thread+0x96/0xe10 [ 56.760666][ T21] ? process_one_work+0x1690/0x1690 [ 56.765845][ T21] kthread+0x3b5/0x4a0 [ 56.770918][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.776718][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.782955][ T21] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts. 2020/06/08 14:08:11 fuzzer started 2020/06/08 14:08:11 connecting to host at 10.128.0.26:42205 2020/06/08 14:08:11 checking machine... 2020/06/08 14:08:11 checking revisions... 2020/06/08 14:08:11 testing simple program... [ 59.597030][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 59.606310][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.612321][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 59.621429][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.632531][ T1154] Call Trace: [ 59.635836][ T1154] dump_stack+0x18f/0x20d [ 59.640173][ T1154] check_preemption_disabled+0x20d/0x220 [ 59.645813][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.650938][ T1154] ? ext4_find_extent+0x81a/0xad0 [ 59.655979][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.661486][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.667223][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.672524][ T1154] ? ext4_ext_release+0x10/0x10 [ 59.677402][ T1154] ? down_write_killable+0x170/0x170 [ 59.682690][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.688164][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 59.693032][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.698239][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.703812][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.709797][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.715277][ T1154] ext4_writepages+0x1a83/0x33c0 [ 59.720238][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.725870][ T1154] ? __lock_acquire+0x2224/0x48b0 [ 59.730930][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.736576][ T1154] ? do_writepages+0xf3/0x2a0 [ 59.741262][ T1154] do_writepages+0xf3/0x2a0 [ 59.745781][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 59.751420][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 59.756450][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 59.761653][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 59.765113][ T6782] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6782 [ 59.766541][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.775617][ T6782] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.781258][ T1154] ? collapse_file+0x35a2/0x4330 [ 59.781273][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.781299][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.781313][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.781336][ T1154] collapse_file+0x35ac/0x4330 [ 59.814269][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 59.819643][ T1154] ? khugepaged+0x2506/0x3fc0 [ 59.824309][ T1154] ? xas_find+0x31a/0x880 [ 59.828623][ T1154] ? check_preemption_disabled+0x38/0x220 [ 59.834335][ T1154] khugepaged+0x3041/0x3fc0 [ 59.838841][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.844460][ T1154] ? lock_downgrade+0x840/0x840 [ 59.849297][ T1154] ? finish_wait+0x260/0x260 [ 59.854133][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.859926][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.865895][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 59.870945][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.876577][ T1154] kthread+0x3b5/0x4a0 [ 59.880637][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.886341][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.892064][ T1154] ret_from_fork+0x1f/0x30 [ 59.896516][ T6782] CPU: 1 PID: 6782 Comm: syz-fuzzer Not tainted 5.7.0-next-20200608-syzkaller #0 [ 59.905640][ T6782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.915700][ T6782] Call Trace: [ 59.919010][ T6782] dump_stack+0x18f/0x20d [ 59.923355][ T6782] check_preemption_disabled+0x20d/0x220 [ 59.928990][ T6782] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.934208][ T6782] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.939679][ T6782] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.945411][ T6782] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.950772][ T6782] ? ext4_ext_release+0x10/0x10 [ 59.955616][ T6782] ? down_write_killable+0x170/0x170 [ 59.960880][ T6782] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.966320][ T6782] ext4_map_blocks+0x4cb/0x1640 [ 59.971158][ T6782] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.976360][ T6782] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.981905][ T6782] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.987862][ T6782] ? prandom_u32_state+0xe/0x170 [ 59.992782][ T6782] ? __brelse+0x84/0xa0 [ 59.996939][ T6782] ? __ext4_new_inode+0x144/0x55e0 [ 60.002050][ T6782] ext4_getblk+0xad/0x520 [ 60.006372][ T6782] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.012087][ T6782] ? ext4_free_inode+0x1700/0x1700 [ 60.017188][ T6782] ext4_bread+0x7c/0x380 [ 60.021450][ T6782] ? ext4_getblk+0x520/0x520 [ 60.026024][ T6782] ? dquot_get_next_dqblk+0x180/0x180 [ 60.031379][ T6782] ext4_append+0x153/0x360 [ 60.035777][ T6782] ext4_mkdir+0x5e0/0xdf0 [ 60.040118][ T6782] ? ext4_rmdir+0xde0/0xde0 [ 60.044623][ T6782] ? security_inode_permission+0xc4/0xf0 [ 60.050249][ T6782] vfs_mkdir+0x419/0x690 [ 60.054536][ T6782] do_mkdirat+0x21e/0x280 [ 60.058854][ T6782] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.063723][ T6782] ? do_syscall_64+0x1c/0xe0 [ 60.068294][ T6782] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.074342][ T6782] do_syscall_64+0x60/0xe0 [ 60.078779][ T6782] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.084654][ T6782] RIP: 0033:0x4b02a0 [ 60.088536][ T6782] Code: Bad RIP value. [ 60.092596][ T6782] RSP: 002b:000000c00011b4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.100984][ T6782] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 60.108937][ T6782] RDX: 00000000000001c0 RSI: 000000c00009cbc0 RDI: ffffffffffffff9c [ 60.116890][ T6782] RBP: 000000c00011b510 R08: 0000000000000000 R09: 0000000000000000 [ 60.124861][ T6782] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.132839][ T6782] R13: 000000000000005f R14: 000000000000005e R15: 0000000000000100 [ 60.149742][ T6795] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6795 [ 60.159395][ T6795] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.165838][ T6795] CPU: 1 PID: 6795 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 60.175383][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.185423][ T6795] Call Trace: [ 60.188752][ T6795] dump_stack+0x18f/0x20d [ 60.193084][ T6795] check_preemption_disabled+0x20d/0x220 [ 60.198784][ T6795] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.203881][ T6795] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.209318][ T6795] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.215023][ T6795] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.220322][ T6795] ? ext4_ext_release+0x10/0x10 [ 60.225166][ T6795] ? down_write_killable+0x170/0x170 [ 60.230450][ T6795] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.235893][ T6795] ext4_map_blocks+0x4cb/0x1640 [ 60.240935][ T6795] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.246128][ T6795] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.251661][ T6795] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.257637][ T6795] ? prandom_u32_state+0xe/0x170 [ 60.262555][ T6795] ? __brelse+0x84/0xa0 [ 60.266691][ T6795] ? __ext4_new_inode+0x144/0x55e0 [ 60.271781][ T6795] ext4_getblk+0xad/0x520 [ 60.276105][ T6795] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.281812][ T6795] ? ext4_free_inode+0x1700/0x1700 [ 60.286969][ T6795] ext4_bread+0x7c/0x380 [ 60.291208][ T6795] ? ext4_getblk+0x520/0x520 [ 60.295791][ T6795] ? dquot_get_next_dqblk+0x180/0x180 [ 60.301163][ T6795] ext4_append+0x153/0x360 [ 60.305583][ T6795] ext4_mkdir+0x5e0/0xdf0 [ 60.309988][ T6795] ? ext4_rmdir+0xde0/0xde0 [ 60.314476][ T6795] ? security_inode_permission+0xc4/0xf0 [ 60.320120][ T6795] vfs_mkdir+0x419/0x690 [ 60.324365][ T6795] do_mkdirat+0x21e/0x280 [ 60.328672][ T6795] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.333538][ T6795] ? do_syscall_64+0x1c/0xe0 [ 60.338106][ T6795] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.344093][ T6795] do_syscall_64+0x60/0xe0 [ 60.348497][ T6795] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.354386][ T6795] RIP: 0033:0x45bee7 [ 60.358253][ T6795] Code: Bad RIP value. [ 60.362299][ T6795] RSP: 002b:00007ffc2eecd758 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.370685][ T6795] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.378633][ T6795] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc2eecd930 [ 60.386605][ T6795] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002bc0 [ 60.394728][ T6795] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.402676][ T6795] R13: 00007ffc2eecd930 R14: 8421084210842109 R15: 00007ffc2eecd93c [ 60.425942][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.435221][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.441213][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 60.450329][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.460409][ T1154] Call Trace: [ 60.463716][ T1154] dump_stack+0x18f/0x20d [ 60.468071][ T1154] check_preemption_disabled+0x20d/0x220 [ 60.473743][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.478885][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.484365][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.490534][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.495841][ T1154] ? ext4_ext_release+0x10/0x10 [ 60.500748][ T1154] ? down_write_killable+0x170/0x170 [ 60.509781][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.515297][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 60.520179][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.525462][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.526109][ T6796] IPVS: ftp: loaded support on port[0] = 21 [ 60.531028][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.531044][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.531059][ T1154] ext4_writepages+0x1a83/0x33c0 [ 60.531090][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.531102][ T1154] ? __lock_acquire+0x2224/0x48b0 [ 60.531139][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.569639][ T1154] ? do_writepages+0xf3/0x2a0 [ 60.574332][ T1154] do_writepages+0xf3/0x2a0 [ 60.578863][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 60.584507][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 60.585527][ T6796] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6796 [ 60.589583][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 60.599119][ T6796] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.604192][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 60.604213][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.604228][ T1154] ? collapse_file+0x35a2/0x4330 [ 60.604244][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.631598][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.636782][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.642772][ T1154] collapse_file+0x35ac/0x4330 [ 60.647532][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 60.652885][ T1154] ? khugepaged+0x2506/0x3fc0 [ 60.657555][ T1154] ? xas_find+0x31a/0x880 [ 60.661885][ T1154] ? check_preemption_disabled+0x38/0x220 [ 60.667608][ T1154] khugepaged+0x3041/0x3fc0 [ 60.672131][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.677841][ T1154] ? lock_downgrade+0x840/0x840 [ 60.682675][ T1154] ? finish_wait+0x260/0x260 [ 60.687247][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.693036][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.699006][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 60.704019][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.709655][ T1154] kthread+0x3b5/0x4a0 [ 60.713723][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.719445][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.725160][ T1154] ret_from_fork+0x1f/0x30 [ 60.729586][ T6796] CPU: 1 PID: 6796 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 60.739055][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.749157][ T6796] Call Trace: [ 60.752630][ T6796] dump_stack+0x18f/0x20d [ 60.757269][ T6796] check_preemption_disabled+0x20d/0x220 [ 60.758904][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 60.763427][ T6796] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.763456][ T6796] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.763471][ T6796] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.763490][ T6796] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.763511][ T6796] ? ext4_ext_release+0x10/0x10 [ 60.772541][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.777636][ T6796] ? down_write_killable+0x170/0x170 [ 60.810037][ T6796] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.815493][ T6796] ext4_map_blocks+0x4cb/0x1640 [ 60.820352][ T6796] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.825534][ T6796] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.831081][ T6796] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.837043][ T6796] ? prandom_u32_state+0xe/0x170 [ 60.841966][ T6796] ? __brelse+0x84/0xa0 [ 60.846113][ T6796] ? __ext4_new_inode+0x144/0x55e0 [ 60.851208][ T6796] ext4_getblk+0xad/0x520 [ 60.855520][ T6796] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.861278][ T6796] ? ext4_free_inode+0x1700/0x1700 [ 60.866375][ T6796] ext4_bread+0x7c/0x380 [ 60.870599][ T6796] ? ext4_getblk+0x520/0x520 [ 60.875178][ T6796] ? dquot_get_next_dqblk+0x180/0x180 [ 60.880540][ T6796] ext4_append+0x153/0x360 [ 60.885140][ T6796] ext4_mkdir+0x5e0/0xdf0 [ 60.889494][ T6796] ? ext4_rmdir+0xde0/0xde0 [ 60.894010][ T6796] ? security_inode_permission+0xc4/0xf0 [ 60.899719][ T6796] vfs_mkdir+0x419/0x690 [ 60.903957][ T6796] do_mkdirat+0x21e/0x280 [ 60.908274][ T6796] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.913109][ T6796] ? do_syscall_64+0x1c/0xe0 [ 60.917705][ T6796] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.923675][ T6796] do_syscall_64+0x60/0xe0 [ 60.928095][ T6796] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.933972][ T6796] RIP: 0033:0x45bee7 [ 60.937947][ T6796] Code: Bad RIP value. [ 60.941994][ T6796] RSP: 002b:00007ffc2eecd648 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.950422][ T6796] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.958374][ T6796] RDX: 00007ffc2eecd693 RSI: 00000000000001ff RDI: 00007ffc2eecd690 [ 60.966335][ T6796] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.974292][ T6796] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 60.982284][ T6796] R13: 00007ffc2eecd680 R14: 0000000000000000 R15: 00007ffc2eecd690 [ 60.990321][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-next-20200608-syzkaller #0 [ 60.999440][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.009549][ T1154] Call Trace: [ 61.012855][ T1154] dump_stack+0x18f/0x20d [ 61.017204][ T1154] check_preemption_disabled+0x20d/0x220 [ 61.022847][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.027993][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.033471][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.039653][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.045243][ T1154] ? ext4_ext_release+0x10/0x10 [ 61.050469][ T1154] ? down_write_killable+0x170/0x170 [ 61.055787][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.061265][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 61.066134][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.071347][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.076899][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.082911][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.088379][ T1154] ext4_writepages+0x1a83/0x33c0 [ 61.093349][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.099434][ T1154] ? __lock_acquire+0x2224/0x48b0 [ 61.104498][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.110152][ T1154] ? do_writepages+0xf3/0x2a0 [ 61.114841][ T1154] do_writepages+0xf3/0x2a0 [ 61.119363][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 61.125008][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 61.130041][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 61.135259][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 61.140124][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.145936][ T1154] ? collapse_file+0x35a2/0x4330 [ 61.150881][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.156968][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.162174][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.168168][ T1154] collapse_file+0x35ac/0x4330 [ 61.171208][ T6796] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6796 [ 61.172964][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 61.182401][ T6796] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.187671][ T1154] ? khugepaged+0x2506/0x3fc0 [ 61.198240][ T1154] ? xas_find+0x31a/0x880 [ 61.202569][ T1154] ? check_preemption_disabled+0x38/0x220 [ 61.208291][ T1154] khugepaged+0x3041/0x3fc0 [ 61.212801][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.218419][ T1154] ? lock_downgrade+0x840/0x840 [ 61.223255][ T1154] ? finish_wait+0x260/0x260 [ 61.227830][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.233620][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.239617][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 61.244629][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.250245][ T1154] kthread+0x3b5/0x4a0 [ 61.254299][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.260002][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.265710][ T1154] ret_from_fork+0x1f/0x30 [ 61.270128][ T6796] CPU: 1 PID: 6796 Comm: syz-executor.0 Not tainted 5.7.0-next-20200608-syzkaller #0 [ 61.279589][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.289653][ T6796] Call Trace: [ 61.293038][ T6796] dump_stack+0x18f/0x20d [ 61.297458][ T6796] check_preemption_disabled+0x20d/0x220 [ 61.303110][ T6796] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.308255][ T6796] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.314154][ T6796] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.319883][ T6796] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.325165][ T6796] ? ext4_ext_release+0x10/0x10 [ 61.330021][ T6796] ? down_write_killable+0x170/0x170 [ 61.335314][ T6796] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.340874][ T6796] ext4_map_blocks+0x4cb/0x1640 [ 61.345855][ T6796] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.351052][ T6796] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.356591][ T6796] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.362684][ T6796] ? prandom_u32_state+0xe/0x170 [ 61.367785][ T6796] ? __brelse+0x84/0xa0 [ 61.371923][ T6796] ? __ext4_new_inode+0x144/0x55e0 [ 61.377022][ T6796] ext4_getblk+0xad/0x520 [ 61.381353][ T6796] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.387237][ T6796] ? ext4_free_inode+0x1700/0x1700 [ 61.392334][ T6796] ext4_bread+0x7c/0x380 [ 61.396558][ T6796] ? ext4_getblk+0x520/0x520 [ 61.401130][ T6796] ? dquot_get_next_dqblk+0x180/0x180 [ 61.406500][ T6796] ext4_append+0x153/0x360 [ 61.410919][ T6796] ext4_mkdir+0x5e0/0xdf0 [ 61.415228][ T6796] ? ext4_rmdir+0xde0/0xde0 [ 61.419714][ T6796] ? security_inode_permission+0xc4/0xf0 [ 61.425328][ T6796] vfs_mkdir+0x419/0x690 [ 61.429551][ T6796] do_mkdirat+0x21e/0x280 [ 61.433869][ T6796] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.438701][ T6796] ? do_syscall_64+0x1c/0xe0 [ 61.443270][ T6796] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.449237][ T6796] do_syscall_64+0x60/0xe0 [ 61.453635][ T6796] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.459506][ T6796] RIP: 0033:0x45bee7 [ 61.463373][ T6796] Code: Bad RIP value. [ 61.467413][ T6796] RSP: 002b:00007ffc2eecd648 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 61.475817][ T6796] RAX: ffffffffffffffda RBX: 000000000000eee6 RCX: 000000000045bee7 [ 61.483778][ T6796] RDX: 00007ffc2eecd693 RSI: 00000000000001ff RDI: 00007ffc2eecd690 [ 61.491726][ T6796] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 2020/06/08 14:08:13 building call list... [ 61.499773][ T6796] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 61.507720][ T6796] R13: 00007ffc2eecd680 R14: 000000000000ee8d R15: 00007ffc2eecd690 [ 61.720105][ T121] tipc: TX() has been purged, node left! executing program [ 63.515674][ T6778] can: request_module (can-proto-0) failed. [ 63.817007][ T6778] can: request_module (can-proto-0) failed. [ 63.828920][ T6778] can: request_module (can-proto-0) failed.