INFO: task bch-reclaim/loo:6440 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:bch-reclaim/loo state:D stack:0     pid:6440  tgid:6440  ppid:2      flags:0x00000008
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905
 __mutex_lock_common+0xeec/0x28f4 kernel/locking/mutex.c:665
 __mutex_lock kernel/locking/mutex.c:735 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787
 btree_write_buffer_flush_seq+0x10fc/0x1254 fs/bcachefs/btree_write_buffer.c:516
 bch2_btree_write_buffer_journal_flush+0xcc/0x154 fs/bcachefs/btree_write_buffer.c:533
 journal_flush_pins+0x524/0xa10 fs/bcachefs/journal_reclaim.c:565
 __bch2_journal_reclaim+0x728/0xfb0 fs/bcachefs/journal_reclaim.c:698
 bch2_journal_reclaim_thread+0x154/0x4b8 fs/bcachefs/journal_reclaim.c:740
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffff80008fb82560 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
2 locks held by getty/6174:
 #0: ffff0000d311f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009ba2b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
7 locks held by syz-executor282/6431:
3 locks held by bch-reclaim/loo/6440:
 #0: ffff0000e1c4b0a8 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x144/0x4b8 fs/bcachefs/journal_reclaim.c:739
 #1: ffff0000e1c04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:157
 #2: ffff0000e1c04740 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x10fc/0x1254 fs/bcachefs/btree_write_buffer.c:516

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