INFO: task syz-executor.4:15077 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc1-syzkaller-00027-g4a4be1ad3a6e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:25632 pid:15077 tgid:15044 ppid:14724  flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 __bch2_two_state_lock+0x171/0x200 fs/bcachefs/two_state_shared_lock.c:7
 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:56 [inline]
 bch2_page_fault+0x2a9/0x560 fs/bcachefs/fs-io-pagecache.c:571
 __do_fault+0x135/0x460 mm/memory.c:4562
 do_read_fault mm/memory.c:4926 [inline]
 do_fault mm/memory.c:5056 [inline]
 do_pte_missing mm/memory.c:3903 [inline]
 handle_pte_fault+0x3d8d/0x7130 mm/memory.c:5380
 __handle_mm_fault mm/memory.c:5523 [inline]
 handle_mm_fault+0xfb0/0x19d0 mm/memory.c:5688
 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:rep_movs_alternative+0x30/0x70 arch/x86/lib/copy_user_64.S:57
Code: f9 40 73 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 <48> 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08
RSP: 0018:ffffc9000328fd70 EFLAGS: 00050216
RAX: ffffffff84a6ab01 RBX: 0000000020000120 RCX: 0000000000000020
RDX: 0000000000000001 RSI: 0000000020000100 RDI: ffffc9000328fe60
RBP: ffffc9000328ff00 R08: ffffc9000328fe7f R09: 1ffff92000651fcf
R10: dffffc0000000000 R11: fffff52000651fd0 R12: 0000000020000100
R13: 0000000000000000 R14: ffffc9000328fe60 R15: 0000000000000020
 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline]
 _copy_from_user+0x8c/0xe0 lib/usercopy.c:28
 copy_from_user include/linux/uaccess.h:183 [inline]
 copy_struct_from_user include/linux/uaccess.h:367 [inline]
 __do_sys_mount_setattr fs/namespace.c:4672 [inline]
 __se_sys_mount_setattr+0x239/0x1b10 fs/namespace.c:4647
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdf4ee7cee9
RSP: 002b:00007fdf4fb9d0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001ba
RAX: ffffffffffffffda RBX: 00007fdf4efb4070 RCX: 00007fdf4ee7cee9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
RBP: 00007fdf4eec947f R08: 0000000000000020 R09: 0000000000000000