INFO: task syz.0.133:7219 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:syz.0.133       state:D stack:0     pid:7219  tgid:7178  ppid:6418   flags:0x00000009
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
 io_schedule+0x8c/0x124 kernel/sched/core.c:7681
 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1308
 __folio_lock+0x2c/0x3c mm/filemap.c:1646
 folio_lock include/linux/pagemap.h:1151 [inline]
 invalidate_inode_pages2_range+0x524/0x11bc mm/truncate.c:627
 bch2_write_invalidate_inode_pages_range+0xc4/0x120 fs/bcachefs/fs-io-pagecache.c:68
 bchfs_fcollapse_finsert+0x1cc/0x4f8 fs/bcachefs/fs-io.c:558
 bch2_fallocate_dispatch+0x380/0x4e8
 vfs_fallocate+0x484/0x5c0 fs/open.c:327
 ksys_fallocate fs/open.c:351 [inline]
 __do_sys_fallocate fs/open.c:356 [inline]
 __se_sys_fallocate fs/open.c:354 [inline]
 __arm64_sys_fallocate+0xc0/0x110 fs/open.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task syz.0.133:7220 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:syz.0.133       state:D stack:0     pid:7220  tgid:7178  ppid:6418   flags:0x00000009
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
 __bch2_two_state_lock+0x1f0/0x260 fs/bcachefs/two_state_shared_lock.c:7
 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline]
 bch2_readahead+0xcc8/0xea8 fs/bcachefs/fs-io-buffered.c:258
 read_pages+0x158/0x688 mm/readahead.c:160
 page_cache_ra_order+0x848/0xa58 mm/readahead.c:512
 page_cache_sync_ra+0x568/0x70c mm/readahead.c:612
 page_cache_sync_readahead include/linux/pagemap.h:1397 [inline]
 filemap_get_pages+0x3b0/0x1a5c mm/filemap.c:2546
 filemap_splice_read+0x4c8/0xbdc mm/filemap.c:2922
 do_splice_read fs/splice.c:985 [inline]
 splice_file_to_pipe+0x378/0x634 fs/splice.c:1295
 do_sendfile+0x420/0x768 fs/read_write.c:1369
 __do_sys_sendfile64 fs/read_write.c:1424 [inline]
 __se_sys_sendfile64 fs/read_write.c:1410 [inline]
 __arm64_sys_sendfile64+0x148/0x3a4 fs/read_write.c:1410
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

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/6177:
 #0: ffff0000d81d10a0 (&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
1 lock held by syz-executor/6407:
 #0: ffff0000c87bb868 (&pipe->mutex){+.+.}-{4:4}, at: pipe_release+0x54/0x308 fs/pipe.c:727
2 locks held by syz.0.133/7219:
 #0: ffff0000dbd98420 (sb_writers#12){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
 #0: ffff0000dbd98420 (sb_writers#12){.+.+}-{0:0}, at: vfs_fallocate+0x428/0x5c0 fs/open.c:326
 #1: ffff0000f13588c8 (&sb->s_type->i_mutex_key#31){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #1: ffff0000f13588c8 (&sb->s_type->i_mutex_key#31){+.+.}-{4:4}, at: bch2_fallocate_dispatch+0x1b0/0x4e8 fs/bcachefs/fs-io.c:771
2 locks held by syz.0.133/7220:
 #0: ffff0000c87bb868 (&pipe->mutex){+.+.}-{4:4}, at: pipe_lock+0x68/0x98 fs/pipe.c:92
 #1: ffff0000f1358a68 (mapping.invalidate_lock#6){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
 #1: ffff0000f1358a68 (mapping.invalidate_lock#6){.+.+}-{4:4}, at: page_cache_ra_order+0x354/0xa58 mm/readahead.c:488

=============================================