INFO: task jbd2/sda1-8:3079 blocked for more than 140 seconds. Not tainted 4.19.0-rc4+ #250 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. jbd2/sda1-8 D17832 3079 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 jbd2_journal_commit_transaction+0xd42/0x89f8 fs/jbd2/commit.c:435 kjournald2+0x26d/0xb30 fs/jbd2/journal.c:229 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 INFO: task syz-executor4:10901 blocked for more than 140 seconds. Not tainted 4.19.0-rc4+ #250 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D19016 10901 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] touch_atime+0x29c/0x320 fs/inode.c:1738 file_accessed include/linux/fs.h:2105 [inline] iterate_dir+0x370/0x5d0 fs/readdir.c:56 __do_sys_getdents fs/readdir.c:231 [inline] __se_sys_getdents fs/readdir.c:212 [inline] __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a7b Code: Bad RIP value. RSP: 002b:00007ffe9d9d2c20 EFLAGS: 00000202 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 0000000001be5970 RCX: 0000000000455a7b RDX: 0000000000008000 RSI: 0000000001be5970 RDI: 0000000000000003 RBP: 0000000001be5970 R08: 0000000000000001 R09: 0000000001be4940 R10: 0000000000000000 R11: 0000000000000202 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000000 R15: badc0ffeebadface INFO: task syz-executor3:11744 blocked for more than 140 seconds. Not tainted 4.19.0-rc4+ #250 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D20392 11744 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] touch_atime+0x29c/0x320 fs/inode.c:1738 file_accessed include/linux/fs.h:2105 [inline] iterate_dir+0x370/0x5d0 fs/readdir.c:56 __do_sys_getdents fs/readdir.c:231 [inline] __se_sys_getdents fs/readdir.c:212 [inline] __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a7b Code: Bad RIP value. RSP: 002b:00007fff9aa63370 EFLAGS: 00000202 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 0000000000b9c970 RCX: 0000000000455a7b RDX: 0000000000008000 RSI: 0000000000b9c970 RDI: 0000000000000003 RBP: 0000000000b9c970 R08: 0000000000000001 R09: 0000000000b9b940 R10: 0000000000000000 R11: 0000000000000202 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000000 R15: badc0ffeebadface INFO: task syz-executor0:13217 blocked for more than 140 seconds. Not tainted 4.19.0-rc4+ #250 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D18312 13217 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] touch_atime+0x29c/0x320 fs/inode.c:1738 file_accessed include/linux/fs.h:2105 [inline] iterate_dir+0x370/0x5d0 fs/readdir.c:56 __do_sys_getdents fs/readdir.c:231 [inline] __se_sys_getdents fs/readdir.c:212 [inline] __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a7b Code: Bad RIP value. RSP: 002b:00007ffe9f382fc0 EFLAGS: 00000206 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 000000000276e970 RCX: 0000000000455a7b RDX: 0000000000008000 RSI: 000000000276e970 RDI: 0000000000000003 RBP: 000000000276e970 R08: 0000000000000001 R09: 000000000276d940 R10: 0000000000000000 R11: 0000000000000206 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000000 R15: badc0ffeebadface INFO: task syz-executor1:13728 blocked for more than 140 seconds. Not tainted 4.19.0-rc4+ #250 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D20904 13728 12639 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 jbd2_log_wait_commit+0x312/0x490 fs/jbd2/journal.c:726 jbd2_complete_transaction+0x188/0x1f0 fs/jbd2/journal.c:781 ext4_sync_file+0x1257/0x1510 fs/ext4/fsync.c:154 vfs_fsync_range+0x140/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2730 [inline] ext4_file_write_iter+0x692/0x1420 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1808 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: Bad RIP value. RSP: 002b:00007f3cdbe4fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3cdbe506d4 RCX: 0000000000457679 RDX: 0000000000000018 RSI: 0000000020000480 RDI: 0000000000000006 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d89e8 R14: 00000000004c53fd R15: 0000000000000000 INFO: task syz-executor2:13735 blocked for more than 140 seconds. Not tainted 4.19.0-rc4+ #250 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D23656 13735 5292 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_new_inode+0x3898/0x65b0 fs/ext4/ialloc.c:928 ext4_symlink+0x4b7/0x1130 fs/ext4/namei.c:3093 vfs_symlink+0x37a/0x5d0 fs/namei.c:4127 do_symlinkat+0x242/0x2d0 fs/namei.c:4154 __do_sys_symlink fs/namei.c:4173 [inline] __se_sys_symlink fs/namei.c:4171 [inline] __x64_sys_symlink+0x59/0x80 fs/namei.c:4171 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4573a7 Code: Bad RIP value. RSP: 002b:00007ffd61faa788 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004573a7 RDX: 00007ffd61faa7d7 RSI: 00000000004bd168 RDI: 00007ffd61faa7c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000017 R10: 0000000000000075 R11: 0000000000000206 R12: 0000000000000003 R13: 000000000004b3d1 R14: 00000000000000d7 R15: badc0ffeebadface Showing all locks held in the system: 1 lock held by khungtaskd/984: #0: 00000000a6a80ec6 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4435 3 locks held by rs:main Q:Reg/5148: #0: 00000000d510aa83 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 000000005895ad50 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #1: 000000005895ad50 (sb_writers#5){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 #2: 00000000ce5f00ba (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_trylock include/linux/fs.h:758 [inline] #2: 00000000ce5f00ba (&sb->s_type->i_mutex_key#12){+.+.}, at: ext4_file_write_iter+0x2a1/0x1420 fs/ext4/file.c:232 1 lock held by rsyslogd/5150: #0: 000000001e66cea5 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 2 locks held by getty/5240: #0: 000000006a946ad4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000aa55697e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5241: #0: 000000004992e3d4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000008a91611 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5242: #0: 0000000019c23a0d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000002dcce1fd (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5243: #0: 00000000816e1f89 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000070a181a9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5244: #0: 000000009586d7a9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000003572fd79 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5245: #0: 0000000063bdbe8e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000002286cd09 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5246: #0: 0000000027de22ad (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000cc8f2fed (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 1 lock held by syz-executor2/6836: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/6854: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/7073: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/7194: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 4 locks held by kworker/u4:5/7296: #0: 000000009cb3e592 ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 000000009cb3e592 ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000009cb3e592 ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000009cb3e592 ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 000000009cb3e592 ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000009cb3e592 ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000009cb3e592 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 000000000503c890 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 00000000b07f689f (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 00000000b4364e09 (&sbi->s_journal_flag_rwsem){++++}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 2 locks held by syz-executor4/10901: #0: 00000000f7b7fd31 (&type->i_mutex_dir_key#3){++++}, at: iterate_dir+0xd8/0x5d0 fs/readdir.c:41 #1: 000000005895ad50 (sb_writers#5){.+.+}, at: sb_start_write_trylock include/linux/fs.h:1571 [inline] #1: 000000005895ad50 (sb_writers#5){.+.+}, at: touch_atime+0x16c/0x320 fs/inode.c:1723 2 locks held by syz-executor3/11744: #0: 000000000bd5870a (&type->i_mutex_dir_key#3){++++}, at: iterate_dir+0xd8/0x5d0 fs/readdir.c:41 #1: 000000005895ad50 (sb_writers#5){.+.+}, at: sb_start_write_trylock include/linux/fs.h:1571 [inline] #1: 000000005895ad50 (sb_writers#5){.+.+}, at: touch_atime+0x16c/0x320 fs/inode.c:1723 1 lock held by syz-executor1/12946: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/12980: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13004: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13024: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13053: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13066: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13084: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13110: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13127: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13186: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13192: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13213: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 2 locks held by syz-executor0/13217: #0: 000000004ad49299 (&type->i_mutex_dir_key#3){++++}, at: iterate_dir+0xd8/0x5d0 fs/readdir.c:41 #1: 000000005895ad50 (sb_writers#5){.+.+}, at: sb_start_write_trylock include/linux/fs.h:1571 [inline] #1: 000000005895ad50 (sb_writers#5){.+.+}, at: touch_atime+0x16c/0x320 fs/inode.c:1723 1 lock held by syz-executor1/13490: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13504: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor1/13522: #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000c5f60ea6 (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 6 locks held by syz-executor5/13725: 2 locks held by syz-executor5/13737: #0: 000000005895ad50 (sb_writers#5){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 000000005895ad50 (sb_writers#5){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 #1: 00000000bed55002 (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 00000000bed55002 (&sb->s_type->i_mutex_key#12){+.+.}, at: do_truncate+0x1b0/0x2d0 fs/open.c:61 2 locks held by syz-executor5/13738: #0: 000000005895ad50 (sb_writers#5){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 000000005895ad50 (sb_writers#5){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 #1: 000000005092901e (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 000000005092901e (&sb->s_type->i_mutex_key#12){+.+.}, at: do_truncate+0x1b0/0x2d0 fs/open.c:61 2 locks held by syz-executor5/13739: #0: 000000005895ad50 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #0: 000000005895ad50 (sb_writers#5){.+.+}, at: vfs_fallocate+0x72a/0x940 fs/open.c:307 #1: 00000000bed55002 (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 00000000bed55002 (&sb->s_type->i_mutex_key#12){+.+.}, at: ext4_fallocate+0x921/0x2300 fs/ext4/extents.c:4957 2 locks held by syz-executor5/13740: #0: 000000005895ad50 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #0: 000000005895ad50 (sb_writers#5){.+.+}, at: vfs_fallocate+0x72a/0x940 fs/open.c:307 #1: 000000005092901e (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 000000005092901e (&sb->s_type->i_mutex_key#12){+.+.}, at: ext4_fallocate+0x921/0x2300 fs/ext4/extents.c:4957 2 locks held by syz-executor1/13728: #0: 000000001f748349 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 000000005895ad50 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #1: 000000005895ad50 (sb_writers#5){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 2 locks held by syz-executor2/13735: #0: 000000005895ad50 (sb_writers#5){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 000000005895ad50 (sb_writers#5){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 #1: 00000000be71f28a (&type->i_mutex_dir_key#3/1){+.+.}, at: inode_lock_nested include/linux/fs.h:773 [inline] #1: 00000000be71f28a (&type->i_mutex_dir_key#3/1){+.+.}, at: filename_create+0x1b2/0x5b0 fs/namei.c:3635 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 984 Comm: khungtaskd Not tainted 4.19.0-rc4+ #250 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0xb3e/0x1050 kernel/hung_task.c:265 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 13725 Comm: syz-executor5 Not tainted 4.19.0-rc4+ #250 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50 kernel/kcov.c:94 Code: dd 28 00 00 00 4d 39 d0 72 1b 49 83 c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 <48> 89 e5 65 48 8b 04 25 40 ee 01 00 65 8b 15 9c 09 83 7e 81 e2 00 RSP: 0018:ffff88019504f1b0 EFLAGS: 00000206 RAX: 0000000000000002 RBX: 00000000ffffffff RCX: ffffffff821e96eb RDX: 00000000f5575a74 RSI: 00000000ffffffff RDI: 0000000000000004 RBP: ffff88019504f270 R08: ffff8801c3d96080 R09: 1ffffffff12b45ed R10: ffffed003b5a4732 R11: ffff8801dad23993 R12: 0000000000008011 R13: 00000000f5575a74 R14: ffff880186c27570 R15: ffff88019504f3e0 FS: 00007f7c139ae700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002446978 CR3: 00000001ccda9000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: move_extent_per_page fs/ext4/move_extent.c:323 [inline] ext4_move_extents+0x2784/0x3c20 fs/ext4/move_extent.c:669 ext4_ioctl+0x3154/0x4210 fs/ext4/ioctl.c:799 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7c139adc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7c139ae6d4 RCX: 0000000000457679 RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf3d0 R14: 00000000004bf70f R15: 0000000000000000