INFO: task bch-reclaim/loo:8109 blocked for more than 145 seconds. Not tainted 6.15.0-rc6-syzkaller-ga82e92598ab1 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:bch-reclaim/loo state:D stack:0 pid:8109 tgid:8109 ppid:2 task_flags:0x200040 flags:0x00000010 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (T) context_switch kernel/sched/core.c:5382 [inline] __schedule+0x13b0/0x28d4 kernel/sched/core.c:6767 __schedule_loop kernel/sched/core.c:6845 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6860 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6917 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:678 __mutex_lock kernel/locking/mutex.c:746 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:798 bch2_journal_reclaim_thread+0x12c/0x480 fs/bcachefs/journal_reclaim.c:765 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847 Showing all locks held in the system: 1 lock held by khungtaskd/32: #0: ffff80008f5088a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 3 locks held by kworker/u8:3/45: 2 locks held by getty/6255: #0: ffff0000d8f480a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b60b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa0 drivers/tty/n_tty.c:2222 6 locks held by syz-executor/6494: #0: ffff0000ce9d40e0 (&type->s_umount_key#73){+.+.}-{4:4}, at: __super_lock fs/super.c:56 [inline] #0: ffff0000ce9d40e0 (&type->s_umount_key#73){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff0000ce9d40e0 (&type->s_umount_key#73){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:505 #1: ffff0000f7e00278 (&c->state_lock){+.+.}-{4:4}, at: __bch2_fs_stop+0xf8/0x564 fs/bcachefs/super.c:627 #2: ffff0000f7e4ad28 (&j->reclaim_lock){+.+.}-{4:4}, at: journal_flush_done+0x90/0x678 fs/bcachefs/journal_reclaim.c:876 #3: ffff0000f7e04228 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:160 #4: ffff0000f7e045d0 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x1008/0x1144 fs/bcachefs/btree_write_buffer.c:569 #5: ffff0000f7e26590 (&c->gc_lock){.+.+}-{4:4}, at: bch2_btree_update_start+0x3d4/0x1890 fs/bcachefs/btree_update_interior.c:1179 2 locks held by kworker/u8:9/7447: 1 lock held by bch-reclaim/loo/8109: #0: ffff0000f7e4ad28 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x12c/0x480 fs/bcachefs/journal_reclaim.c:765 2 locks held by syz-executor/9688: 1 lock held by syz.5.1195/10650: 4 locks held by syz.0.1201/10667: =============================================