binder: undelivered TRANSACTION_ERROR: 29201 device lo entered promiscuous mode device lo left promiscuous mode INFO: task kworker/u4:0:7 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. kworker/u4:0 D14504 7 2 0x80000000 Workqueue: writeback wb_workfn (flush-8:0) 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_writepages+0x18ba/0x4110 fs/ext4/inode.c:2836 do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 __writeback_single_inode+0x20a/0x1620 fs/fs-writeback.c:1323 writeback_sb_inodes+0x71f/0x11d0 fs/fs-writeback.c:1587 __writeback_inodes_wb+0x1b9/0x340 fs/fs-writeback.c:1656 wb_writeback+0xa73/0xfc0 fs/fs-writeback.c:1765 wb_check_old_data_flush fs/fs-writeback.c:1867 [inline] wb_do_writeback fs/fs-writeback.c:1920 [inline] wb_workfn+0x1008/0x1790 fs/fs-writeback.c:1949 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 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 D17624 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 rs:main Q:Reg:5205 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. rs:main Q:Reg D21288 5205 1 0x00000000 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] file_update_time+0x390/0x640 fs/inode.c:1877 __generic_file_write_iter+0x1dc/0x630 mm/filemap.c:3214 ext4_file_write_iter+0x390/0x1420 fs/ext4/file.c:266 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: 0033:0x7fb8dd17019d Code: d1 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be fa ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 07 fb ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fb8db711000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000054 RCX: 00007fb8dd17019d RDX: 0000000000000054 RSI: 00000000012b1a90 RDI: 0000000000000005 RBP: 00000000012b1a90 R08: 00000000012b1a90 R09: 2065636976656420 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fb8db711480 R14: 0000000000000001 R15: 00000000012b1890 INFO: task syz-executor0:5345 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 D18952 5345 5338 0x00000000 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:00007ffd361d5770 EFLAGS: 00000202 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 0000000001146970 RCX: 0000000000455a7b RDX: 0000000000008000 RSI: 0000000001146970 RDI: 0000000000000003 RBP: 0000000001146970 R08: 0000000000000001 R09: 0000000001145940 R10: 0000000000000000 R11: 0000000000000202 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000000 R15: badc0ffeebadface INFO: task syz-executor3:5349 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 D19000 5349 5343 0x00000000 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 get_link fs/namei.c:1057 [inline] trailing_symlink+0x2cb/0x970 fs/namei.c:2263 path_mountpoint+0x762/0x2190 fs/namei.c:2696 filename_mountpoint+0x245/0x460 fs/namei.c:2717 user_path_mountpoint_at+0x37/0x40 fs/namei.c:2747 ksys_umount+0x1c9/0x12a0 fs/namespace.c:1639 __do_sys_umount fs/namespace.c:1665 [inline] __se_sys_umount fs/namespace.c:1663 [inline] __x64_sys_umount+0x54/0x80 fs/namespace.c:1663 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a0c7 Code: Bad RIP value. RSP: 002b:00007fffaeb5d858 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: ffffffffffffffda RBX: 0000000000066eea RCX: 000000000045a0c7 RDX: 0000000000402e60 RSI: 0000000000000002 RDI: 00007fffaeb5d900 RBP: 000000000000067e R08: 0000000000000000 R09: 0000000000000010 R10: 000000000000000a R11: 0000000000000206 R12: 00007fffaeb5e960 R13: 0000000001384940 R14: 0000000000000000 R15: badc0ffeebadface INFO: task syz-executor4:22299 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 D22928 22299 20782 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] file_update_time+0x390/0x640 fs/inode.c:1877 ext4_page_mkwrite+0x1fe/0x14a0 fs/ext4/inode.c:6171 do_page_mkwrite+0x14e/0x660 mm/memory.c:2388 do_shared_fault mm/memory.c:3717 [inline] do_fault mm/memory.c:3756 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x35ca/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x401697 Code: 14 10 00 70 84 30 50 16 80 81 c6 00 ae 04 d1 12 20 48 80 98 80 44 00 90 42 58 0a 83 04 01 a5 85 20 01 00 90 81 99 61 00 72 ac 55 10 03 02 00 0b 27 10 06 00 00 08 04 2a 00 02 00 81 02 82 80 RSP: 002b:00007ffce9cf8c30 EFLAGS: 00010287 RAX: 0000001b2bd24000 RBX: 00000000f8f2d4e5 RCX: 0000001b2cd20000 RDX: 0000001b2bd24004 RSI: 000000000000146d RDI: ffffffff7a32f46c RBP: 0000000000000104 R08: 000000007a32f46c R09: 000000007a32f470 R10: 00007ffce9cf8e10 R11: 0000000000000246 R12: 000000000072bfa0 R13: 0000000080000000 R14: 00007f074b198008 R15: 00000000000007f2 INFO: task syz-executor5:22334 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-executor5 D24600 22334 5347 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 __rwsem_down_write_failed_common+0xbb9/0x1670 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:738 [inline] do_truncate+0x1b0/0x2d0 fs/open.c:61 handle_truncate fs/namei.c:3008 [inline] do_last fs/namei.c:3424 [inline] path_openat+0x3762/0x5160 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_sys_open+0x568/0x700 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1084 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:00007f3d86a88c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f3d86a896d4 RCX: 0000000000457679 RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d3fc0 R14: 00000000004c2b9e R15: 0000000000000001 Showing all locks held in the system: 4 locks held by kworker/u4:0/7: #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 00000000582d2d31 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 00000000365c7851 (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 000000009b76f353 (&sbi->s_journal_flag_rwsem){.+.+}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 4 locks held by kworker/u4:3/298: #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000b04705c3 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 00000000dcf30382 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 00000000365c7851 (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 000000009b76f353 (&sbi->s_journal_flag_rwsem){.+.+}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 1 lock held by khungtaskd/985: #0: 00000000d57fdc50 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4435 3 locks held by rs:main Q:Reg/5205: #0: 000000000a234188 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 0000000094c55fa5 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #1: 0000000094c55fa5 (sb_writers#5){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 #2: 0000000050ad5e9e (&sb->s_type->i_mutex_key#12){++++}, at: inode_trylock include/linux/fs.h:758 [inline] #2: 0000000050ad5e9e (&sb->s_type->i_mutex_key#12){++++}, at: ext4_file_write_iter+0x2a1/0x1420 fs/ext4/file.c:232 1 lock held by rsyslogd/5207: #0: 00000000fc361a2b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 2 locks held by getty/5298: #0: 000000003e874614 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000c44e9336 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5299: #0: 000000009f1b211b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000004c7a1be2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5300: #0: 00000000bb6def24 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000c388ba04 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5301: #0: 00000000ae230c88 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000000278c6c5 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5302: #0: 00000000cd2678cc (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000047bc3661 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5303: #0: 00000000f29ff985 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000071be651f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5304: #0: 00000000f0f0aa9a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000e269b886 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by syz-executor0/5345: #0: 0000000030fab51d (&type->i_mutex_dir_key#3){++++}, at: iterate_dir+0xd8/0x5d0 fs/readdir.c:41 #1: 0000000094c55fa5 (sb_writers#5){.+.+}, at: sb_start_write_trylock include/linux/fs.h:1571 [inline] #1: 0000000094c55fa5 (sb_writers#5){.+.+}, at: touch_atime+0x16c/0x320 fs/inode.c:1723 1 lock held by syz-executor3/5349: #0: 0000000094c55fa5 (sb_writers#5){.+.+}, at: sb_start_write_trylock include/linux/fs.h:1571 [inline] #0: 0000000094c55fa5 (sb_writers#5){.+.+}, at: touch_atime+0x16c/0x320 fs/inode.c:1723 2 locks held by syz-executor0/6901: #0: 00000000b6ab8323 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000010a467b1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by syz-executor3/6924: #0: 000000009e7e13af (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000fd8f5054 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 1 lock held by syz-executor5/7087: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/8318: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 2 locks held by kworker/0:8/8373: #0: 00000000b98e960a ((wq_completion)"events"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000b98e960a ((wq_completion)"events"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000b98e960a ((wq_completion)"events"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000b98e960a ((wq_completion)"events"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000b98e960a ((wq_completion)"events"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000b98e960a ((wq_completion)"events"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000b98e960a ((wq_completion)"events"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 00000000972cbde2 (key_gc_work){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 1 lock held by syz-executor5/8389: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/9274: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/10533: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/10615: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/10710: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/10792: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/11151: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/11284: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/11556: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor5/12391: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 2 locks held by syz-executor1/20784: #0: 00000000b45ae0a8 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000040699449 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 1 lock held by syz-executor4/21086: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor4/21222: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor4/21382: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor4/22093: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 1 lock held by syz-executor4/22277: #0: 00000000a30cbb6e (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] #0: 00000000a30cbb6e (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 2 locks held by syz-executor4/22299: #0: 0000000003e4716a (&mm->mmap_sem){++++}, at: __do_page_fault+0x3e3/0xed0 arch/x86/mm/fault.c:1324 #1: 000000007d338963 (sb_pagefaults){.+.+}, at: sb_start_pagefault include/linux/fs.h:1595 [inline] #1: 000000007d338963 (sb_pagefaults){.+.+}, at: ext4_page_mkwrite+0x1d0/0x14a0 fs/ext4/inode.c:6170 6 locks held by syz-executor5/22330: 2 locks held by syz-executor5/22334: #0: 0000000094c55fa5 (sb_writers#5){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 0000000094c55fa5 (sb_writers#5){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 #1: 0000000079dee0c9 (&sb->s_type->i_mutex_key#12){++++}, at: inode_lock include/linux/fs.h:738 [inline] #1: 0000000079dee0c9 (&sb->s_type->i_mutex_key#12){++++}, at: do_truncate+0x1b0/0x2d0 fs/open.c:61 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 985 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 1 to CPUs 0: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.352 msecs NMI backtrace for cpu 0 CPU: 0 PID: 22330 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+0x0/0x50 kernel/kcov.c:146 Code: 14 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 RSP: 0018:ffff8801dac07d78 EFLAGS: 00000002 RAX: 0000000080010000 RBX: ffff8801dac1f140 RCX: ffffffff81709cb5 RDX: 0000000000000ddc RSI: 0000000000000000 RDI: 0000000000000007 RBP: ffff8801dac07da8 R08: ffff8801cbaea1c0 R09: 0000000000000008 R10: fffffbfff14fbc01 R11: 0000000000000001 R12: 0000000000000ddc R13: 0000000000000000 R14: 0000000000000000 R15: 7fffffffffffffff FS: 00007f3d86aaa700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000eca980 CR3: 00000001bb420000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tick_program_event+0xb7/0x130 kernel/time/tick-oneshot.c:48 hrtimer_interrupt+0x368/0x780 kernel/time/hrtimer.c:1531 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1054 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:__sanitizer_cov_trace_const_cmp2+0x1/0x20 kernel/kcov.c:180 Code: ff 5d c3 66 0f 1f 44 00 00 55 40 0f b6 d6 40 0f b6 f7 bf 01 00 00 00 48 89 e5 48 8b 4d 08 e8 a6 fe ff ff 5d c3 0f 1f 40 00 55 <0f> b7 d6 0f b7 f7 bf 03 00 00 00 48 89 e5 48 8b 4d 08 e8 88 fe ff RSP: 0018:ffff8801bf08f140 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: ffff8801cda64f80 RCX: ffffc9000366c000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff8801bf08f1b0 R08: ffff8801cbaea1c0 R09: 1ffffffff12b45ed R10: ffffed003b584732 R11: ffff8801dac23993 R12: 0000000000000001 R13: 0000000000000001 R14: ffff88018209c640 R15: ffff8801cda64f80 get_ext_path fs/ext4/move_extent.c:31 [inline] mext_check_coverage.constprop.13+0x2b0/0x510 fs/ext4/move_extent.c:98 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:00007f3d86aa9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f3d86aaa6d4 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