INFO: task syz-executor.5:18483 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:18483 ppid:6016 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6804 rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0xb4/0xc0 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:775 [inline] do_truncate+0x1ac/0x28c fs/open.c:64 do_sys_ftruncate+0x284/0x318 fs/open.c:194 __do_sys_ftruncate fs/open.c:205 [inline] __se_sys_ftruncate fs/open.c:203 [inline] __arm64_sys_ftruncate+0x60/0x74 fs/open.c:203 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.5:18490 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:18490 ppid:6016 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6804 rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0xb4/0xc0 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:775 [inline] generic_file_write_iter+0x88/0x2b4 mm/filemap.c:4086 call_write_iter include/linux/fs.h:1868 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x618/0x918 fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 3 locks held by kworker/0:0/7: #0: ffff0000d0f17d38 ((wq_completion)reiserfs/loop5){+.+.}-{0:0}, at: process_one_work+0x664/0x12d4 kernel/workqueue.c:2378 #1: ffff8000927b7c20 ((work_completion)(&(&journal->j_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x12d4 kernel/workqueue.c:2380 #2: ffff0000d69e1490 (&jl->j_commit_mutex){+.+.}-{3:3}, at: reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:814 [inline] #2: ffff0000d69e1490 (&jl->j_commit_mutex){+.+.}-{3:3}, at: flush_commit_list+0x568/0x18d4 fs/reiserfs/journal.c:1007 1 lock held by rcu_tasks_kthre/13: #0: ffff80008e0916d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffff80008e091a90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/29: #0: ffff80008e091500 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326 2 locks held by getty/5732: #0: ffff0000cf354098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800092e262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2176 5 locks held by kworker/1:8/6754: #0: ffff0000c0021538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x664/0x12d4 kernel/workqueue.c:2378 #1: ffff80009aae7c20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x12d4 kernel/workqueue.c:2380 #2: ffff0000c280c0e0 (&type->s_umount_key#73){.+.+}-{3:3}, at: flush_old_commits+0xcc/0x2b8 fs/reiserfs/super.c:97 #3: ffff0000d69e1490 (&jl->j_commit_mutex){+.+.}-{3:3}, at: reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:814 [inline] #3: ffff0000d69e1490 (&jl->j_commit_mutex){+.+.}-{3:3}, at: flush_commit_list+0x568/0x18d4 fs/reiserfs/journal.c:1007 #4: ffff000134971090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock_nested+0x68/0xd8 fs/reiserfs/lock.c:78 3 locks held by syz-executor.5/18462: 2 locks held by syz-executor.5/18483: #0: ffff0000c280c460 (sb_writers#24){.+.+}-{0:0}, at: do_sys_ftruncate+0x210/0x318 fs/open.c:191 #1: ffff000135999020 ( &sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] &sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:64 3 locks held by syz-executor.5/18490: #0: ffff0000d691aae8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xd8/0x104 fs/file.c:1047 #1: ffff0000c280c460 (sb_writers#24){.+.+}-{0:0}, at: vfs_write+0x240/0x918 fs/read_write.c:580 #2: ffff000135999020 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #2: ffff000135999020 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: generic_file_write_iter+0x88/0x2b4 mm/filemap.c:4086 2 locks held by syz-executor.5/22483: 1 lock held by syz-executor.0/22498: =============================================