INFO: task bch-reclaim/loo:6788 blocked for more than 143 seconds. Not tainted 6.11.0-rc7-syzkaller-g5f5673607153 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:bch-reclaim/loo state:D stack:0 pid:6788 tgid:6788 ppid:2 flags:0x00000008 Call trace: __switch_to+0x420/0x6dc arch/arm64/kernel/process.c:603 context_switch kernel/sched/core.c:5188 [inline] __schedule+0x13d4/0x2418 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6621 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6678 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:684 __mutex_lock kernel/locking/mutex.c:752 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804 bch2_journal_reclaim_thread+0x144/0x4b8 fs/bcachefs/journal_reclaim.c:738 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffff80008f74dfa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:325 2 locks held by kworker/u8:3/44: 2 locks held by getty/6191: #0: ffff0000d28c10a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b54b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 4 locks held by syz-executor/6425: 1 lock held by bch-reclaim/loo/6788: #0: ffff0000f57caf28 (&j->reclaim_lock){+.+.}-{3:3}, at: bch2_journal_reclaim_thread+0x144/0x4b8 fs/bcachefs/journal_reclaim.c:738 1 lock held by syz.1.603/9246: 2 locks held by syz.3.602/9247: #0: ffff0000d094e0e0 (&type->s_umount_key#31){++++}-{3:3}, at: do_remount fs/namespace.c:3009 [inline] #0: ffff0000d094e0e0 (&type->s_umount_key#31){++++}-{3:3}, at: path_mount+0xbdc/0xe04 fs/namespace.c:3791 #1: ffff0000f08bab98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_write fs/ext4/ext4.h:1784 [inline] #1: ffff0000f08bab98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: __ext4_remount fs/ext4/super.c:6451 [inline] #1: ffff0000f08bab98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_reconfigure+0x8b4/0x2bf4 fs/ext4/super.c:6711 1 lock held by syz.4.604/9250: =============================================