INFO: task syz-executor:8264 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc6-syzkaller-gfdd6064ff31c #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:8264  tgid:8264  ppid:1      flags:0x00000009
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x14ac/0x24d8 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6894
 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1178
 __down_write_common kernel/locking/rwsem.c:1306 [inline]
 __down_write kernel/locking/rwsem.c:1315 [inline]
 down_write+0xb4/0xc0 kernel/locking/rwsem.c:1580
 inode_lock include/linux/fs.h:791 [inline]
 vfs_unlink+0xd8/0x534 fs/namei.c:4332
 do_unlinkat+0x4d0/0x700 fs/namei.c:4407
 __do_sys_unlinkat fs/namei.c:4450 [inline]
 __se_sys_unlinkat fs/namei.c:4443 [inline]
 __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4443
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffff80008f387960 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328
1 lock held by udevd/5901:
2 locks held by getty/6041:
 #0: ffff0000d28d90a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800097f9b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/6288:
 #0: ffff80008f38ccb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
 #0: ffff80008f38ccb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x354/0x678 kernel/rcu/tree_exp.h:939
3 locks held by syz-executor/8264:
 #0: ffff0000eafc0420 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409
 #1: ffff0000eba10150 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
 #1: ffff0000eba10150 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: do_unlinkat+0x2dc/0x700 fs/namei.c:4394
 #2: ffff0000eba11020 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
 #2: ffff0000eba11020 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: vfs_unlink+0xd8/0x534 fs/namei.c:4332
2 locks held by bch-copygc/loop/8542:
4 locks held by syz.0.776/8544:
 #0: ffff0000eba11020 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
 #0: ffff0000eba11020 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:63
 #1: ffff0000df800ab8 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x134/0x274 fs/bcachefs/io_misc.c:290
 #2: ffff0000df8042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:115
 #3: ffff0000df826750 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x590/0x15a0 fs/bcachefs/btree_update_interior.c:1195
4 locks held by kworker/u8:20/9567:
2 locks held by syz-executor/11190:
2 locks held by udevd/11830:
1 lock held by udevd/11867:
2 locks held by syz.2.1897/13118:

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