INFO: task syz-executor.0:4547 blocked for more than 430 seconds. Not tainted 5.11.0-rc6-syzkaller-00274-g825b5991a46e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack: 0 pid: 4547 ppid: 4594 flags:0x00400009 Call trace: __switch_to+0x1f8/0x330 arch/arm64/kernel/process.c:564 context_switch kernel/sched/core.c:4327 [inline] __schedule+0x83c/0x1b70 kernel/sched/core.c:5078 schedule+0xac/0x230 kernel/sched/core.c:5157 rwsem_down_write_slowpath+0x704/0xf10 kernel/locking/rwsem.c:1106 __down_write_common kernel/locking/rwsem.c:1261 [inline] __down_write_common kernel/locking/rwsem.c:1258 [inline] __down_write kernel/locking/rwsem.c:1270 [inline] down_write+0x1e8/0x24c kernel/locking/rwsem.c:1407 inode_lock include/linux/fs.h:773 [inline] lock_mount+0x70/0x20c fs/namespace.c:2198 do_new_mount_fc fs/namespace.c:2824 [inline] do_new_mount fs/namespace.c:2883 [inline] path_mount+0x1304/0x2170 fs/namespace.c:3211 do_mount fs/namespace.c:3224 [inline] __do_sys_mount fs/namespace.c:3432 [inline] __se_sys_mount fs/namespace.c:3409 [inline] __arm64_sys_mount+0x2ec/0x520 fs/namespace.c:3409 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline] el0_svc_common.constprop.0+0x110/0x3c0 arch/arm64/kernel/syscall.c:159 do_el0_svc_compat+0x40/0x80 arch/arm64/kernel/syscall.c:204 el0_svc_compat+0x20/0x30 arch/arm64/kernel/entry-common.c:442 el0_sync_compat_handler+0x90/0x140 arch/arm64/kernel/entry-common.c:451 el0_sync_compat+0x178/0x180 arch/arm64/kernel/entry.S:708 INFO: task syz-executor.0:4553 blocked for more than 430 seconds. Not tainted 5.11.0-rc6-syzkaller-00274-g825b5991a46e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack: 0 pid: 4553 ppid: 4594 flags:0x00400009 Call trace: __switch_to+0x1f8/0x330 arch/arm64/kernel/process.c:564 context_switch kernel/sched/core.c:4327 [inline] __schedule+0x83c/0x1b70 kernel/sched/core.c:5078 schedule+0xac/0x230 kernel/sched/core.c:5157 rwsem_down_write_slowpath+0x704/0xf10 kernel/locking/rwsem.c:1106 __down_write_common kernel/locking/rwsem.c:1261 [inline] __down_write_common kernel/locking/rwsem.c:1258 [inline] __down_write kernel/locking/rwsem.c:1270 [inline] down_write+0x1e8/0x24c kernel/locking/rwsem.c:1407 inode_lock include/linux/fs.h:773 [inline] lock_mount+0x70/0x20c fs/namespace.c:2198 do_new_mount_fc fs/namespace.c:2824 [inline] do_new_mount fs/namespace.c:2883 [inline] path_mount+0x1304/0x2170 fs/namespace.c:3211 do_mount fs/namespace.c:3224 [inline] __do_sys_mount fs/namespace.c:3432 [inline] __se_sys_mount fs/namespace.c:3409 [inline] __arm64_sys_mount+0x2ec/0x520 fs/namespace.c:3409 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline] el0_svc_common.constprop.0+0x110/0x3c0 arch/arm64/kernel/syscall.c:159 do_el0_svc_compat+0x40/0x80 arch/arm64/kernel/syscall.c:204 el0_svc_compat+0x20/0x30 arch/arm64/kernel/entry-common.c:442 el0_sync_compat_handler+0x90/0x140 arch/arm64/kernel/entry-common.c:451 el0_sync_compat+0x178/0x180 arch/arm64/kernel/entry.S:708 INFO: task syz-executor.0:4557 blocked for more than 430 seconds. Not tainted 5.11.0-rc6-syzkaller-00274-g825b5991a46e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack: 0 pid: 4557 ppid: 4594 flags:0x00400001 Call trace: __switch_to+0x1f8/0x330 arch/arm64/kernel/process.c:564 context_switch kernel/sched/core.c:4327 [inline] __schedule+0x83c/0x1b70 kernel/sched/core.c:5078 schedule+0xac/0x230 kernel/sched/core.c:5157 rwsem_down_write_slowpath+0x704/0xf10 kernel/locking/rwsem.c:1106 __down_write_common kernel/locking/rwsem.c:1261 [inline] __down_write_common kernel/locking/rwsem.c:1258 [inline] __down_write kernel/locking/rwsem.c:1270 [inline] down_write+0x1e8/0x24c kernel/locking/rwsem.c:1407 inode_lock include/linux/fs.h:773 [inline] fuse_reverse_inval_entry+0x3c/0x3f0 fs/fuse/dir.c:1117 fuse_notify_inval_entry fs/fuse/dev.c:1487 [inline] fuse_notify fs/fuse/dev.c:1775 [inline] fuse_dev_do_write+0x1d34/0x1f20 fs/fuse/dev.c:1859 fuse_dev_write+0x11c/0x194 fs/fuse/dev.c:1943 call_write_iter include/linux/fs.h:1901 [inline] new_sync_write+0x2f0/0x500 fs/read_write.c:518 vfs_write+0x40c/0x570 fs/read_write.c:605 ksys_write+0xec/0x1d0 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __arm64_sys_write+0x6c/0xa0 fs/read_write.c:667 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline] el0_svc_common.constprop.0+0x110/0x3c0 arch/arm64/kernel/syscall.c:159 do_el0_svc_compat+0x40/0x80 arch/arm64/kernel/syscall.c:204 el0_svc_compat+0x20/0x30 arch/arm64/kernel/entry-common.c:442 el0_sync_compat_handler+0x90/0x140 arch/arm64/kernel/entry-common.c:451 el0_sync_compat+0x178/0x180 arch/arm64/kernel/entry.S:708 Showing all locks held in the system: no locks held by rcu_preempt/12. 1 lock held by khungtaskd/1477: #0: ffff80001936dc60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x70/0x2b0 kernel/locking/lockdep.c:6261 1 lock held by syslogd/4128: 1 lock held by klogd/4132: 2 locks held by getty/4405: #0: ffff000019322098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001e7ca2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x1a0/0x160c drivers/tty/n_tty.c:2155 3 locks held by kworker/u4:3/22061: 3 locks held by syz-executor.0/4541: 1 lock held by syz-executor.0/4547: #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:773 [inline] #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lock_mount+0x70/0x20c fs/namespace.c:2198 1 lock held by syz-executor.0/4553: #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:773 [inline] #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lock_mount+0x70/0x20c fs/namespace.c:2198 2 locks held by syz-executor.0/4557: #0: ffff00001633a338 (&fc->killsb){++++}-{3:3}, at: fuse_notify_inval_entry fs/fuse/dev.c:1486 [inline] #0: ffff00001633a338 (&fc->killsb){++++}-{3:3}, at: fuse_notify fs/fuse/dev.c:1775 [inline] #0: ffff00001633a338 (&fc->killsb){++++}-{3:3}, at: fuse_dev_do_write+0x1d20/0x1f20 fs/fuse/dev.c:1859 #1: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:773 [inline] #1: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: fuse_reverse_inval_entry+0x3c/0x3f0 fs/fuse/dir.c:1117 1 lock held by syz-executor.0/4564: #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:773 [inline] #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lock_mount+0x70/0x20c fs/namespace.c:2198 1 lock held by syz-executor.0/4567: #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:773 [inline] #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lock_mount+0x70/0x20c fs/namespace.c:2198 1 lock held by syz-executor.0/4569: #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:773 [inline] #0: ffff00003241a9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lock_mount+0x70/0x20c fs/namespace.c:2198 =============================================