INFO: task syz.0.2662:13571 blocked for more than 429 seconds.
      Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2662      state:D stack:0     pid:13571 tgid:13570 ppid:12022  flags:0x00000004
Call Trace:
[<ffffffff85fe3a74>] context_switch kernel/sched/core.c:5315 [inline]
[<ffffffff85fe3a74>] __schedule+0xd5a/0x3886 kernel/sched/core.c:6675
[<ffffffff85fe6664>] __schedule_loop kernel/sched/core.c:6752 [inline]
[<ffffffff85fe6664>] schedule+0xc4/0x324 kernel/sched/core.c:6767
[<ffffffff85fe6fac>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6824
[<ffffffff85feea50>] rwsem_down_write_slowpath+0x4e0/0xe4a kernel/locking/rwsem.c:1176
[<ffffffff85fef53a>] __down_write_common kernel/locking/rwsem.c:1304 [inline]
[<ffffffff85fef53a>] __down_write kernel/locking/rwsem.c:1313 [inline]
[<ffffffff85fef53a>] down_write+0x180/0x19c kernel/locking/rwsem.c:1578
[<ffffffff81278882>] filemap_invalidate_lock include/linux/fs.h:860 [inline]
[<ffffffff81278882>] blkdev_fallocate+0x1ac/0x30a block/fops.c:808
[<ffffffff80a172c8>] vfs_fallocate+0x3f6/0x966 fs/open.c:333
[<ffffffff80a1a3ae>] ksys_fallocate fs/open.c:356 [inline]
[<ffffffff80a1a3ae>] __do_sys_fallocate fs/open.c:364 [inline]
[<ffffffff80a1a3ae>] __se_sys_fallocate fs/open.c:362 [inline]
[<ffffffff80a1a3ae>] __riscv_sys_fallocate+0xc4/0x126 fs/open.c:362
[<ffffffff8000f2d4>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90
[<ffffffff85fd9c4a>] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331
[<ffffffff85ffcac6>] _new_vmalloc_restore_context_a0+0xc2/0xce

Showing all locks held in the system:
1 lock held by khungtaskd/38:
 #0: ffffffff87fcc100 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6716
1 lock held by syslogd/2995:
1 lock held by klogd/2999:
2 locks held by getty/3149:
 #0: ff6000001c62b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ff2000000008b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd7c/0x129a drivers/tty/n_tty.c:2211
2 locks held by sshd/3173:
2 locks held by syz.1.2412/12470:
1 lock held by syz-executor/12498:
1 lock held by syz.0.2662/13571:
 #0: ff600000157114c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:860 [inline]
 #0: ff600000157114c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1ac/0x30a block/fops.c:808
2 locks held by syz.0.2716/14069:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80010a14>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85f7c3cc>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85fd797a>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff85fd797a>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:120
[<ffffffff85fd7a0a>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff85f3faae>] nmi_cpu_backtrace+0x39c/0x39e lib/nmi_backtrace.c:113
[<ffffffff85f3fd66>] nmi_trigger_cpumask_backtrace+0x2b6/0x456 lib/nmi_backtrace.c:62
[<ffffffff80019974>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:347
[<ffffffff80432c3c>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff80432c3c>] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
[<ffffffff80432c3c>] watchdog+0xcfa/0x1178 kernel/hung_task.c:379
[<ffffffff80154e14>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85ffcbde>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 9404 Comm: syz.0.1751 Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
Hardware name: riscv-virtio,qemu (DT)
epc : lock_acquire.part.0+0x36c/0x81c kernel/locking/lockdep.c:5790
 ra : lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
 ra : lock_acquire.part.0+0x2d6/0x81c kernel/locking/lockdep.c:5827
epc : ffffffff80249f5c ra : ffffffff80249ec6 sp : ff200000018d76e0
 gp : ffffffff897bea80 tp : ff6000001a619a40 t0 : ff6000001a61a560
 t1 : ff6000001a61a560 t2 : 00000000000005fa s0 : ff200000018d7840
 s1 : ff6000006ec3a708 a0 : ffffffff90b60b08 a1 : ffffffff8643e8a0
 a2 : 0000000000000014 a3 : ffffffff898bbd80 a4 : 0000000000000000
 a5 : 0000000000000000 a6 : ffffffff8cfb54e0 a7 : ffffffff9988ee9b
 s2 : ffffffff90b60b08 s3 : 0000000000000000 s4 : ff60000012bf40a8
 s5 : 1fe400000031aee4 s6 : 0000000000000000 s7 : ffffffff813c1700
 s8 : 0000000000000000 s9 : ffffffff86258708 s10: ffffffff90b60b00
 s11: 0000000000000002 t3 : 1fec0000034c34ab t4 : 0000000000000006
 t5 : d63c119d223f5333 t6 : 1fec0000034c34b0
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80249f5c>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff80249f5c>] lock_acquire.part.0+0x36c/0x81c kernel/locking/lockdep.c:5828
[<ffffffff8024a480>] lock_acquire+0x74/0x98 kernel/locking/lockdep.c:5798
[<ffffffff85fea10e>] __mutex_lock_common kernel/locking/mutex.c:608 [inline]
[<ffffffff85fea10e>] __mutex_lock+0x150/0x1022 kernel/locking/mutex.c:752
[<ffffffff85feaff4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:804
[<ffffffff813c1700>] io_cqring_do_overflow_flush io_uring/io_uring.c:670 [inline]
[<ffffffff813c1700>] io_cqring_wait+0x1212/0x1696 io_uring/io_uring.c:2617
[<ffffffff813c7c18>] __do_sys_io_uring_enter io_uring/io_uring.c:3384 [inline]
[<ffffffff813c7c18>] __se_sys_io_uring_enter io_uring/io_uring.c:3276 [inline]
[<ffffffff813c7c18>] __riscv_sys_io_uring_enter+0x4b6/0x10ae io_uring/io_uring.c:3276
[<ffffffff8000f2d4>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90
[<ffffffff85fd9c4a>] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331
[<ffffffff85ffcac6>] _new_vmalloc_restore_context_a0+0xc2/0xce