INFO: task syz-executor:6518 blocked for more than 143 seconds. Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:6518 tgid:6518 ppid:1 task_flags:0x400140 flags:0x00000019 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 __bch2_fs_stop+0x5f8/0x800 fs/bcachefs/super.c:697 bch2_put_super+0x40/0x50 fs/bcachefs/fs.c:2366 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643 bch2_kill_sb+0x40/0x58 fs/bcachefs/fs.c:2618 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x16c/0x1ec arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 INFO: task syz-executor:6519 blocked for more than 143 seconds. Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:6519 tgid:6519 ppid:1 task_flags:0x400140 flags:0x00000019 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 __bch2_fs_stop+0x5f8/0x800 fs/bcachefs/super.c:697 bch2_put_super+0x40/0x50 fs/bcachefs/fs.c:2366 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643 bch2_kill_sb+0x40/0x58 fs/bcachefs/fs.c:2618 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x16c/0x1ec arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 INFO: task syz-executor:6530 blocked for more than 143 seconds. Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:6530 tgid:6530 ppid:1 task_flags:0x400140 flags:0x00000019 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 __bch2_fs_stop+0x5f8/0x800 fs/bcachefs/super.c:697 bch2_put_super+0x40/0x50 fs/bcachefs/fs.c:2366 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643 bch2_kill_sb+0x40/0x58 fs/bcachefs/fs.c:2618 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x16c/0x1ec arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Showing all locks held in the system: 3 locks held by kworker/u8:1/13: #0: ffff0000d2863148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff800097a57bc0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by khungtaskd/32: #0: ffff80008f819e40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 2 locks held by kworker/u8:10/2216: 2 locks held by kworker/u8:11/4432: 2 locks held by getty/6289: #0: ffff0000d66110a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b9be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 1 lock held by udevd/6512: 1 lock held by syz-executor/6518: #0: ffff0000c25140e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000c25140e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000c25140e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 1 lock held by syz-executor/6519: #0: ffff0000d31820e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000d31820e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000d31820e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 1 lock held by syz-executor/6525: #0: ffff0000d05a20e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000d05a20e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000d05a20e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 1 lock held by syz-executor/6530: #0: ffff0000c72d00e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000c72d00e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000c72d00e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 1 lock held by syz-executor/7728: #0: ffff0000ce8280e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000ce8280e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000ce8280e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 3 locks held by syz-executor/10210: =============================================