INFO: task syz.2.3:6535 blocked for more than 143 seconds.
      Tainted: G        W          6.10.0-rc2-syzkaller-g8867bbd4a056 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.3         state:D stack:0     pid:6535  tgid:6470  ppid:6384   flags:0x0000000d
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x14b8/0x24e8 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6837
 __closure_sync+0x198/0x29c lib/closure.c:135
 closure_sync include/linux/closure.h:194 [inline]
 bch2_extent_fallocate+0x1194/0x1a28 fs/bcachefs/io_misc.c:129
 __bchfs_fallocate fs/bcachefs/fs-io.c:673 [inline]
 bchfs_fallocate fs/bcachefs/fs-io.c:736 [inline]
 bch2_fallocate_dispatch+0x19b8/0x2d50 fs/bcachefs/fs-io.c:783
 vfs_fallocate+0x480/0x5bc fs/open.c:330
 ioctl_preallocate+0x288/0x334 fs/ioctl.c:291
 do_vfs_ioctl+0x1d98/0x2ab0 fs/ioctl.c:886
 __do_sys_ioctl fs/ioctl.c:905 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:893
 __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:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 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: ffff80008f597820 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328
2 locks held by udevd/5992:
2 locks held by getty/6133:
 #0: ffff0000d26410a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009821b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
3 locks held by kworker/0:5/6429:
 #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x62c/0x15e8 kernel/workqueue.c:3205
 #1: ffff800099217c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x15e8 kernel/workqueue.c:3205
 #2: ffff0000d24f0240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489
3 locks held by syz.2.3/6535:
 #0: ffff0000f3662420 (sb_writers#11){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline]
 #0: ffff0000f3662420 (sb_writers#11){.+.+}-{0:0}, at: vfs_fallocate+0x40c/0x5bc fs/open.c:329
 #1: ffff0000eeda08b8 (&sb->s_type->i_mutex_key#19){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
 #1: ffff0000eeda08b8 (&sb->s_type->i_mutex_key#19){+.+.}-{3:3}, at: bch2_fallocate_dispatch+0x2dc/0x2d50 fs/bcachefs/fs-io.c:774
 #2: ffff0000efb842d0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:115
1 lock held by syz-executor/7557:
3 locks held by syz.3.334/8297:

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