ci starts bisection 2023-04-02 10:13:21.225117905 +0000 UTC m=+337741.671465887 bisecting fixing commit since 200e340f2196d7fd427a5810d06e893b932f145a building syzkaller on e853abd9a2542fcccb8e1a23eb8ae475500ecaf9 ensuring issue is reproducible on original commit 200e340f2196d7fd427a5810d06e893b932f145a testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 135fcf652aba0106ad83a601d51fbc4d4535618875b1f8465f89f3b3a3830622 run #0: crashed: INFO: task hung in __generic_file_fsync run #1: crashed: INFO: task hung in __generic_file_fsync run #2: crashed: INFO: task hung in __generic_file_fsync run #3: crashed: INFO: task hung in __generic_file_fsync run #4: crashed: INFO: task hung in __generic_file_fsync run #5: crashed: INFO: task hung in __generic_file_fsync run #6: crashed: INFO: task hung in __generic_file_fsync run #7: crashed: INFO: task hung in fat_setattr run #8: crashed: INFO: task hung in __generic_file_fsync run #9: crashed: INFO: task hung in __generic_file_fsync run #10: crashed: INFO: task hung in __generic_file_fsync run #11: crashed: INFO: task hung in __generic_file_fsync run #12: crashed: INFO: task hung in __generic_file_fsync run #13: crashed: INFO: task hung in __generic_file_fsync run #14: crashed: INFO: task hung in __generic_file_fsync run #15: crashed: INFO: task hung in __generic_file_fsync run #16: crashed: INFO: task hung in __generic_file_fsync run #17: crashed: INFO: task hung in __generic_file_fsync run #18: crashed: INFO: task hung in __generic_file_fsync run #19: crashed: INFO: task hung in __generic_file_fsync testing current HEAD 00c7b5f4ddc5b346df62b757ec73f9357bb452af testing commit 00c7b5f4ddc5b346df62b757ec73f9357bb452af gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fda9daab990562a0e921e69fdc5d4e8d92f875221ebabc00071b2bde7757ab3e all runs: crashed: INFO: task hung in __generic_file_fsync revisions tested: 2, total time: 27m2.253228534s (build: 13m42.731935464s, test: 12m20.089858708s) the crash still happens on HEAD commit msg: Merge tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input crash: INFO: task hung in __generic_file_fsync INFO: task kworker/1:15:5673 blocked for more than 143 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:15 state:D stack:28176 pid:5673 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:21:5679 blocked for more than 143 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:21 state:D stack:26560 pid:5679 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:34:5744 blocked for more than 143 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:34 state:D stack:28240 pid:5744 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:37:5878 blocked for more than 144 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:37 state:D stack:27920 pid:5878 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:39:5880 blocked for more than 144 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:39 state:D stack:28240 pid:5880 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:41:5882 blocked for more than 144 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:41 state:D stack:28096 pid:5882 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:43:5884 blocked for more than 144 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:43 state:D stack:28240 pid:5884 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:46:5888 blocked for more than 144 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:46 state:D stack:28240 pid:5888 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:50:5893 blocked for more than 144 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:50 state:D stack:28000 pid:5893 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:58:6260 blocked for more than 145 seconds. Not tainted 6.3.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:58 state:D stack:28344 pid:6260 ppid:2 flags:0x00004000 Workqueue: dio/loop4 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0xc01/0x56c0 kernel/sched/core.c:6625 schedule+0xda/0x1a0 kernel/sched/core.c:6701 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0x3de/0x1210 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x1ce/0x200 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 fat_file_fsync+0x5b/0x1f0 fs/fat/file.c:191 generic_write_sync include/linux/fs.h:2452 [inline] dio_complete+0x45a/0x8d0 fs/direct-io.c:309 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8b184170 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffffffff8b183e70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/27: #0: ffffffff8b184cc0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x330 kernel/locking/lockdep.c:6495 2 locks held by kworker/u4:2/40: #0: ffff888010c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffff88807e0aa4b0 (&mm->cid_lock#2){....}-{2:2}, at: mm_cid_get kernel/sched/sched.h:3280 [inline] #1: ffff88807e0aa4b0 (&mm->cid_lock#2){....}-{2:2}, at: switch_mm_cid kernel/sched/sched.h:3302 [inline] #1: ffff88807e0aa4b0 (&mm->cid_lock#2){....}-{2:2}, at: prepare_task_switch kernel/sched/core.c:5117 [inline] #1: ffff88807e0aa4b0 (&mm->cid_lock#2){....}-{2:2}, at: context_switch kernel/sched/core.c:5258 [inline] #1: ffff88807e0aa4b0 (&mm->cid_lock#2){....}-{2:2}, at: __schedule+0x2772/0x56c0 kernel/sched/core.c:6625 1 lock held by udevd/4406: 2 locks held by getty/4722: #0: ffff888025d73098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900020382f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xb6f/0x1040 drivers/tty/n_tty.c:2177 3 locks held by kworker/1:15/5673: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc900059d7db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:21/5679: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc90005a37db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:34/5744: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc90005c97db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:37/5878: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc90005ed7db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:39/5880: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc90005dc7db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:41/5882: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc900060d7db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:43/5884: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc900060f7db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:46/5888: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc90006097db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:50/5893: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc90005fc7db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:58/6260: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc9000acafdb8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:65/6453: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc9000b107db8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:66/6640: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc9000b5afdb8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:67/6737: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc9000b9dfdb8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:69/6917: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc90002d1fdb8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 2 locks held by syz-executor.4/7336: #0: ffff88801c3e2460 (sb_writers#13){.+.+}-{0:0}, at: do_syscall_x64 arch/x86/entry/common.c:50 [inline] #0: ffff88801c3e2460 (sb_writers#13){.+.+}-{0:0}, at: do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 #1: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: do_truncate+0xdc/0x1a0 fs/open.c:64 2 locks held by syz-executor.0/7340: #0: ffff88801f0b6460 (sb_writers#13){.+.+}-{0:0}, at: do_syscall_x64 arch/x86/entry/common.c:50 [inline] #0: ffff88801f0b6460 (sb_writers#13){.+.+}-{0:0}, at: do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 #1: ffff888076952870 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff888076952870 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: do_truncate+0xdc/0x1a0 fs/open.c:64 1 lock held by syz-executor.0/7351: #0: ffff888076952870 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff888076952870 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: generic_file_write_iter+0x89/0x2c0 mm/filemap.c:4083 3 locks held by dio/loop4/7350: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc9000424fd58 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by dio/loop0/7353: #0: ffff888026d2d138 ((wq_completion)dio/loop0){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888026d2d138 ((wq_completion)dio/loop0){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888026d2d138 ((wq_completion)dio/loop0){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888026d2d138 ((wq_completion)dio/loop0){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888026d2d138 ((wq_completion)dio/loop0){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888026d2d138 ((wq_completion)dio/loop0){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc9000428fd58 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076952870 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076952870 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:72/7354: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc900042afdb8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 3 locks held by kworker/1:73/7356: #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8880257f3138 ((wq_completion)dio/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x13f0 kernel/workqueue.c:2361 #1: ffffc900042cfdb8 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13f0 kernel/workqueue.c:2365 #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888076955af0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: __generic_file_fsync+0x82/0x190 fs/libfs.c:1136 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x60/0xa0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x171/0x200 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x1b8/0x200 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0x9f5/0xcf0 kernel/hung_task.c:379 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:598 [inline] RIP: 0010:queued_spin_unlock arch/x86/include/asm/qspinlock.h:57 [inline] RIP: 0010:do_raw_spin_unlock+0x167/0x230 kernel/locking/spinlock_debug.c:141 Code: a4 ff 8a c7 45 08 ff ff ff ff 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 b6 00 00 00 48 83 3d 31 04 a6 09 00 <74> 4b 48 89 ef e8 cf 13 77 07 90 5d 41 5c 41 5d c3 48 c7 c6 40 62 RSP: 0018:ffffc90000007d28 EFLAGS: 00000086 RAX: 1ffffffff15ff489 RBX: 1ffff92000000fb3 RCX: ffffffff81599f00 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffff8880b9c3b200 RBP: ffff8880b9c3b200 R08: 0000000000000000 R09: ffff8880b9c3b203 R10: ffffed1017387640 R11: 0000000000000000 R12: ffff8880b9c3b208 R13: ffff8880b9c3b210 R14: ffff88806bade058 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555649708 CR3: 000000007215f000 CR4: 0000000000350ef0 Call Trace: __raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186 __task_rq_unlock kernel/sched/sched.h:1620 [inline] ttwu_queue kernel/sched/core.c:3957 [inline] try_to_wake_up+0xcde/0x1c40 kernel/sched/core.c:4278 hrtimer_wakeup+0x35/0x40 kernel/time/hrtimer.c:1939 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x4d7/0x960 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x2f5/0x7a0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0x146/0x430 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline] RIP: 0010:acpi_safe_halt+0x1b/0x20 drivers/acpi/processor_idle.c:113 Code: ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 04 25 00 a8 03 00 48 8b 00 a8 08 75 0c eb 07 0f 00 2d c7 ad a2 00 fb f4 c3 0f 1f 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb 9f RSP: 0018:ffffffff8ae07d90 EFLAGS: 00000246 RAX: 0000000000004000 RBX: 0000000000037c08 RCX: ffffffff88cda05e RDX: 0000000000000001 RSI: ffff8881451c3000 RDI: ffff8881451c3064 RBP: ffff888017507000 R08: 0000000000000001 R09: ffff8880b9c35c2b R10: ffffed1017386b85 R11: ffffffff8bb9ce80 R12: 0000000000000001 R13: ffff8881451c3064 R14: ffffffff8bb9ce80 R15: 0000000000000000 acpi_idle_enter+0xc3/0x150 drivers/acpi/processor_idle.c:711 cpuidle_enter_state+0x7e/0x520 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x45/0xa0 drivers/cpuidle/cpuidle.c:388 cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x305/0x3e0 kernel/sched/idle.c:282 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:379 rest_init+0x144/0x220 init/main.c:736 arch_call_rest_init+0xa/0x20 init/main.c:898 start_kernel+0x2c1/0x370 init/main.c:1152 secondary_startup_64_no_verify+0xce/0xdb