INFO: task syz.3.196:7164 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.196       state:D stack:0     pid:7164  tgid:7114  ppid:6301   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
 __bch2_two_state_lock+0x198/0x20c fs/bcachefs/two_state_shared_lock.c:7
 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:56 [inline]
 bch2_readahead+0x840/0xeb8 fs/bcachefs/fs-io-buffered.c:269
 read_pages+0x160/0x694 mm/readahead.c:160
 page_cache_ra_order+0x6dc/0xa10 mm/readahead.c:535
 ondemand_readahead+0x600/0xaf4 mm/readahead.c:669
 page_cache_sync_ra+0x130/0x180 mm/readahead.c:696
 page_cache_sync_readahead include/linux/pagemap.h:1306 [inline]
 filemap_get_pages+0x368/0x1630 mm/filemap.c:2529
 filemap_splice_read+0x4c4/0xc50 mm/filemap.c:2894
 do_splice_read fs/splice.c:985 [inline]
 splice_direct_to_actor+0x38c/0xa0c fs/splice.c:1089
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x1e4/0x304 fs/splice.c:1233
 do_sendfile+0x46c/0xbd0 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64 fs/read_write.c:1348 [inline]
 __arm64_sys_sendfile64+0x164/0x270 fs/read_write.c:1348
 __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: ffff80008f2d7a60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328
2 locks held by kworker/u8:5/470:
2 locks held by kworker/u8:11/691:
 #0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222
 #1: ffff800098dd7c20 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222
2 locks held by getty/6048:
 #0: ffff0000d22b50a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800097eae2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
3 locks held by syz.3.196/7118:
 #0: ffff0000f0e5e420 (sb_writers#12){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline]
 #0: ffff0000f0e5e420 (sb_writers#12){.+.+}-{0:0}, at: vfs_fallocate+0x40c/0x5bc fs/open.c:329
 #1: ffff0000ec5e1020 (&sb->s_type->i_mutex_key#20){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
 #1: ffff0000ec5e1020 (&sb->s_type->i_mutex_key#20){+.+.}-{3:3}, at: bch2_fallocate_dispatch+0x2dc/0x2d50 fs/bcachefs/fs-io.c:774
 #2: ffff0000ebc042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:115
1 lock held by syz.3.196/7164:
 #0: ffff0000ec5e11c0 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:846 [inline]
 #0: ffff0000ec5e11c0 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: page_cache_ra_order+0x23c/0xa10 mm/readahead.c:514
1 lock held by syz-executor/9678:
 #0: ffff80008f2dcdb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
 #0: ffff80008f2dcdb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x354/0x678 kernel/rcu/tree_exp.h:939

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