INFO: task syz.0.952:6176 blocked for more than 435 seconds.
      Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.952       state:D stack:0     pid:6176  tgid:6175  ppid:3172   task_flags:0x40044c flags:0x0000000c
Call Trace:
[<ffffffff86307720>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff86307720>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff8630a856>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff8630a856>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff8630b1d8>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6935
[<ffffffff86314fbc>] rwsem_down_read_slowpath+0x57c/0x95e kernel/locking/rwsem.c:1084
[<ffffffff86315a3c>] __down_read_common kernel/locking/rwsem.c:1248 [inline]
[<ffffffff86315a3c>] __down_read kernel/locking/rwsem.c:1261 [inline]
[<ffffffff86315a3c>] down_read+0xe4/0x45e kernel/locking/rwsem.c:1526
[<ffffffff80156242>] mmap_read_lock include/linux/mmap_lock.h:412 [inline]
[<ffffffff80156242>] exit_mm kernel/exit.c:557 [inline]
[<ffffffff80156242>] do_exit+0x6bc/0x28ca kernel/exit.c:943
[<ffffffff801589b0>] do_group_exit+0xd4/0x26c kernel/exit.c:1104
[<ffffffff80190b0a>] get_signal+0x207c/0x22fc kernel/signal.c:3034
[<ffffffff80070c0e>] arch_do_signal_or_restart+0x5d8/0x24c6 arch/riscv/kernel/signal.c:431
[<ffffffff803b54e6>] exit_to_user_mode_loop+0x90/0x134 kernel/entry/common.c:111
[<ffffffff862fcc8c>] exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
[<ffffffff862fcc8c>] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
[<ffffffff862fcc8c>] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
[<ffffffff862fcc8c>] do_trap_ecall_u+0x3f0/0x530 arch/riscv/kernel/traps.c:355
[<ffffffff863250ca>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:197

Showing all locks held in the system:
1 lock held by kthreadd/2: