syzbot

INFO: task syz-executor.3:8979 blocked for more than 143 seconds.
      Not tainted 6.9.0-syzkaller-10729-gb6394d6f7159 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:28016 pid:8979  tgid:8919  ppid:8248   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x4a00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
 bch2_remap_file_range+0x36f/0xe90 fs/bcachefs/fs-io.c:874
 vfs_copy_file_range+0xc1f/0x1510 fs/read_write.c:1522
 __do_sys_copy_file_range fs/read_write.c:1612 [inline]
 __se_sys_copy_file_range+0x3f2/0x5d0 fs/read_write.c:1575
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbdb107cee9
RSP: 002b:00007fbdb1e000c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fbdb11ac050 RCX: 00007fbdb107cee9
RDX: 0000000000000004 RSI: 00000000200001c0 RDI: 0000000000000005
RBP: 00007fbdb10c949e R08: ffffffffa003e45b R09: 0700000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fbdb11ac050 R15: 00007ffd06a635e8
 </TASK>