EXT4-fs (sda1): resizing filesystem from 524032 to 31 blocks EXT4-fs warning (device sda1): ext4_resize_fs:1900: can't shrink FS - resize aborted INFO: task jbd2/sda1-8:75 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. jbd2/sda1-8 D27520 75 2 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 jbd2_journal_commit_transaction+0x724/0x648c fs/jbd2/commit.c:437 kjournald2+0x244/0x820 fs/jbd2/journal.c:233 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 INFO: task kworker/u4:5:2246 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:5 D26736 2246 2 0x80000000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_writepages+0x105e/0x3040 fs/ext4/inode.c:2867 do_writepages+0xe0/0x270 mm/page-writeback.c:2341 __writeback_single_inode+0xd8/0x1020 fs/fs-writeback.c:1320 writeback_sb_inodes+0x468/0xcd0 fs/fs-writeback.c:1584 __writeback_inodes_wb+0xf8/0x1e0 fs/fs-writeback.c:1653 wb_writeback+0x4ee/0xb90 fs/fs-writeback.c:1762 wb_check_background_flush fs/fs-writeback.c:1841 [inline] wb_do_writeback fs/fs-writeback.c:1900 [inline] wb_workfn+0x739/0xe00 fs/fs-writeback.c:1928 process_one_work+0x86e/0x15c0 kernel/workqueue.c:2114 worker_thread+0xdc/0x1000 kernel/workqueue.c:2248 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 INFO: task syz-executor1:4504 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D28704 4504 1844 0x80000002 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f6bc28decf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007ffd249bb7af R14: 00007f6bc28df9c0 R15: 0000000000000000 INFO: task syz-executor4:4749 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D27200 4749 1848 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007efc4a4fec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 RAX: fffffffffffffdfc RBX: 0000000000000002 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000020000080 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007efc4a4ff6d4 R13: 00000000004bd9e2 R14: 00000000004d3fc0 R15: 00000000ffffffff INFO: task syz-executor4:4778 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D29032 4778 1848 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007efc4a4fecf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007ffddaca080f R14: 00007efc4a4ff9c0 R15: 0000000000000000 INFO: task syz-executor5:5036 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D29032 5036 1847 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f5b1b095c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 RAX: fffffffffffffdfc RBX: 0000000000000002 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000020000080 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5b1b0966d4 R13: 00000000004bd9e2 R14: 00000000004d3fc0 R15: 00000000ffffffff INFO: task syz-executor5:5065 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D29032 5065 1847 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f5b1b095c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 RAX: fffffffffffffdfc RBX: 0000000000000002 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000020000080 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5b1b0966d4 R13: 00000000004bd9e2 R14: 00000000004d3fc0 R15: 00000000ffffffff INFO: task syz-executor3:5091 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D28728 5091 1849 0x80000002 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007fe6a68f0cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007ffddc3ac93f R14: 00007fe6a68f19c0 R15: 0000000000000000 INFO: task syz-executor5:5315 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D28824 5315 1847 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f5b1b095cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007ffce49f2b3f R14: 00007f5b1b0969c0 R15: 0000000000000000 INFO: task syz-executor5:5508 blocked for more than 140 seconds. Not tainted 4.14.73+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D28968 5508 1847 0x80000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 start_this_handle+0x6de/0xfc0 fs/jbd2/transaction.c:339 jbd2__journal_start+0x30a/0x8b0 fs/jbd2/transaction.c:444 __ext4_journal_start_sb+0x109/0x460 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:314 [inline] ext4_evict_inode+0x59b/0x1520 fs/ext4/inode.c:255 evict+0x2cb/0x5f0 fs/inode.c:554 iput_final fs/inode.c:1516 [inline] iput+0x373/0x8e0 fs/inode.c:1543 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:373 __dentry_kill+0x31b/0x590 fs/dcache.c:577 dentry_kill fs/dcache.c:618 [inline] dput.part.6+0x4b5/0x710 fs/dcache.c:833 dput+0x1b/0x30 fs/dcache.c:797 path_put+0x2d/0x60 fs/namei.c:516 free_fs_struct+0x1e/0x60 fs/fs_struct.c:91 exit_fs+0xd6/0x110 fs/fs_struct.c:109 do_exit+0x8d5/0x2800 kernel/exit.c:861 do_group_exit+0x100/0x2e0 kernel/exit.c:968 get_signal+0x4e5/0x1470 kernel/signal.c:2348 do_signal+0x8f/0x1660 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x116/0x150 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] do_syscall_64+0x35d/0x4b0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007f5b1b095cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c R13: 00007ffce49f2b3f R14: 00007f5b1b0969c0 R15: 0000000000000000 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x74/0x20f kernel/locking/lockdep.c:4541 3 locks held by rs:main Q:Reg/1628: #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa2/0xc0 fs/file.c:768 #1: (sb_writers#4){.+.+}, at: [] file_start_write include/linux/fs.h:2722 [inline] #1: (sb_writers#4){.+.+}, at: [] vfs_write+0x3d7/0x4d0 fs/read_write.c:545 #2: (&sb->s_type->i_mutex_key#9){++++}, at: [] inode_trylock include/linux/fs.h:733 [inline] #2: (&sb->s_type->i_mutex_key#9){++++}, at: [] ext4_file_write_iter+0x1b9/0xe20 fs/ext4/file.c:230 2 locks held by getty/1758: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x20/0x80 drivers/tty/tty_ldisc.c:275 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1ff/0x15e0 drivers/tty/n_tty.c:2142 4 locks held by kworker/u4:5/2246: #0: ("writeback"){+.+.}, at: [] process_one_work+0x787/0x15c0 kernel/workqueue.c:2085 #1: ((&(&wb->dwork)->work)){+.+.}, at: [] process_one_work+0x7bf/0x15c0 kernel/workqueue.c:2089 #2: (&type->s_umount_key#34){++++}, at: [] trylock_super+0x1a/0xe0 fs/super.c:402 #3: (&sbi->s_journal_flag_rwsem){.+.+}, at: [] do_writepages+0xe0/0x270 mm/page-writeback.c:2341 1 lock held by syz-executor1/4504: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor4/4749: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor4/4778: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor5/5036: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor5/5065: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor3/5091: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor5/5315: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor5/5508: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor3/5545: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor5/5716: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor5/5771: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor2/5813: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor2/5833: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor5/5965: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor1/6115: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 2 locks held by syz-executor1/6279: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (sb_pagefaults){.+.+}, at: [] sb_start_pagefault include/linux/fs.h:1572 [inline] #1: (sb_pagefaults){.+.+}, at: [] ext4_page_mkwrite+0x167/0xf40 fs/ext4/inode.c:6089 3 locks held by syz-executor1/6293: #0: (sb_writers#4){.+.+}, at: [] sb_start_write include/linux/fs.h:1543 [inline] #0: (sb_writers#4){.+.+}, at: [] mnt_want_write+0x3a/0xa0 fs/namespace.c:387 #1: (&sb->s_type->i_mutex_key#9){++++}, at: [] inode_lock include/linux/fs.h:713 [inline] #1: (&sb->s_type->i_mutex_key#9){++++}, at: [] do_truncate2+0xfd/0x1c0 fs/open.c:61 #2: (&ei->i_mmap_sem){++++}, at: [] ext4_setattr+0x126d/0x2280 fs/ext4/inode.c:5516 1 lock held by syz-executor5/6282: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 1 lock held by syz-executor3/6306: #0: (sb_internal){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1590 [inline] #0: (sb_internal){.+.+}, at: [] ext4_evict_inode+0x367/0x1520 fs/ext4/inode.c:250 2 locks held by syz-executor3/6312: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (sb_pagefaults){.+.+}, at: [] sb_start_pagefault include/linux/fs.h:1572 [inline] #1: (sb_pagefaults){.+.+}, at: [] ext4_page_mkwrite+0x167/0xf40 fs/ext4/inode.c:6089 1 lock held by syz-executor3/6328: #0: (sb_writers#4){.+.+}, at: [] sb_start_write include/linux/fs.h:1543 [inline] #0: (sb_writers#4){.+.+}, at: [] mnt_want_write_file+0xfa/0x300 fs/namespace.c:498 2 locks held by syz-executor4/6322: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (sb_pagefaults){.+.+}, at: [] sb_start_pagefault include/linux/fs.h:1572 [inline] #1: (sb_pagefaults){.+.+}, at: [] ext4_page_mkwrite+0x167/0xf40 fs/ext4/inode.c:6089 2 locks held by syz-executor5/6326: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (sb_pagefaults){.+.+}, at: [] sb_start_pagefault include/linux/fs.h:1572 [inline] #1: (sb_pagefaults){.+.+}, at: [] ext4_page_mkwrite+0x167/0xf40 fs/ext4/inode.c:6089 2 locks held by syz-executor2/6332: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (sb_pagefaults){.+.+}, at: [] sb_start_pagefault include/linux/fs.h:1572 [inline] #1: (sb_pagefaults){.+.+}, at: [] ext4_page_mkwrite+0x167/0xf40 fs/ext4/inode.c:6089 2 locks held by syz-executor0/6333: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x26d/0xb60 arch/x86/mm/fault.c:1354 #1: (sb_pagefaults){.+.+}, at: [] sb_start_pagefault include/linux/fs.h:1572 [inline] #1: (sb_pagefaults){.+.+}, at: [] ext4_page_mkwrite+0x167/0xf40 fs/ext4/inode.c:6089 2 locks held by init/6337: #0: (sb_writers#4){.+.+}, at: [] file_start_write include/linux/fs.h:2722 [inline] #0: (sb_writers#4){.+.+}, at: [] vfs_write+0x3d7/0x4d0 fs/read_write.c:545 #1: (&sb->s_type->i_mutex_key#9){++++}, at: [] inode_trylock include/linux/fs.h:733 [inline] #1: (&sb->s_type->i_mutex_key#9){++++}, at: [] ext4_file_write_iter+0x1b9/0xe20 fs/ext4/file.c:230 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.73+ #12 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 nmi_cpu_backtrace.cold.0+0x47/0x85 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x121/0x146 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x574/0xa70 kernel/hung_task.c:252 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6314 Comm: syz-executor3 Not tainted 4.14.73+ #12 task: ffff88019a790000 task.stack: ffff8801c3ad0000 RIP: 0010:__sanitizer_cov_trace_pc+0x29/0x60 kernel/kcov.c:93 RSP: 0018:ffff8801c3ad76e0 EFLAGS: 00000246 RAX: ffff88019a790000 RBX: ffff8801d1304e00 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffc900035b1000 RDI: ffff880195040010 RBP: 000000005f6805fc R08: 0000000006b0d4b3 R09: 0000000000000000 R10: ffff88019a790920 R11: 0000000000000001 R12: ffff8801c3ad78f8 R13: ffff8801950401f0 R14: ffff880195040000 R15: 0000000000008002 FS: 00007fe6a68f1700(0000) GS:ffff8801d7600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001f681f8 CR3: 00000001c396e003 CR4: 00000000001606b0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ext4_ext_get_actual_len fs/ext4/ext4_extents.h:209 [inline] mext_check_coverage.constprop.2+0x1fe/0x3c0 fs/ext4/move_extent.c:112 move_extent_per_page fs/ext4/move_extent.c:333 [inline] ext4_move_extents+0x17dc/0x2a10 fs/ext4/move_extent.c:681 ext4_ioctl+0x275c/0x35e0 fs/ext4/ioctl.c:765 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x1a0/0x1030 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7e/0xb0 fs/ioctl.c:692 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457579 RSP: 002b:00007fe6a68f0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe6a68f16d4 R13: 00000000004bf5dd R14: 00000000004cf460 R15: 00000000ffffffff Code: 90 90 65 48 8b 04 25 c0 de 01 00 48 85 c0 74 1a 65 8b 15 7b 24 71 5f 81 e2 00 01 1f 00 75 0b 8b 90 a8 11 00 00 83 fa 01 74 01 c3 <48> c7 c2 00 00 00 81 48 81 ea 00 00 60 a0 48 03 14 24 48 8b b0