INFO: task syz.0.1846:10636 blocked for more than 430 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.0.1846      state:D stack:0     pid:10636 tgid:10634 ppid:9820   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
[<ffffffff85feff86>] rwsem_down_read_slowpath+0x56a/0x91e kernel/locking/rwsem.c:1084
[<ffffffff85ff09dc>] __down_read_common kernel/locking/rwsem.c:1248 [inline]
[<ffffffff85ff09dc>] __down_read kernel/locking/rwsem.c:1261 [inline]
[<ffffffff85ff09dc>] down_read+0xe4/0x460 kernel/locking/rwsem.c:1526
[<ffffffff8072fec2>] filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
[<ffffffff8072fec2>] page_cache_ra_unbounded+0xe8/0x528 mm/readahead.c:226
[<ffffffff807303f2>] do_page_cache_ra+0xf0/0x134 mm/readahead.c:320
[<ffffffff80730eea>] page_cache_ra_order+0xea/0x17c mm/readahead.c:520
[<ffffffff807313de>] page_cache_sync_ra+0x462/0x9e0 mm/readahead.c:608
[<ffffffff80701b98>] page_cache_sync_readahead include/linux/pagemap.h:1394 [inline]
[<ffffffff80701b98>] filemap_get_pages+0xc3c/0x1b30 mm/filemap.c:2547
[<ffffffff8070aad2>] filemap_splice_read+0x4bc/0xb56 mm/filemap.c:2921
[<ffffffff80b0901a>] do_splice_read fs/splice.c:985 [inline]
[<ffffffff80b0901a>] do_splice_read+0x1b2/0x260 fs/splice.c:959
[<ffffffff80b093a8>] splice_direct_to_actor+0x266/0x948 fs/splice.c:1089
[<ffffffff80b0a1ec>] do_splice_direct_actor fs/splice.c:1207 [inline]
[<ffffffff80b0a1ec>] do_splice_direct+0x162/0x218 fs/splice.c:1233
[<ffffffff80a23aba>] do_sendfile+0x96e/0xbf0 fs/read_write.c:1388
[<ffffffff80a29a8c>] __do_sys_sendfile64 fs/read_write.c:1455 [inline]
[<ffffffff80a29a8c>] __se_sys_sendfile64 fs/read_write.c:1441 [inline]
[<ffffffff80a29a8c>] __riscv_sys_sendfile64+0x1fc/0x220 fs/read_write.c:1441
[<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/36:
 #0: ffffffff87fcc100 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6716
1 lock held by klogd/3001:
2 locks held by getty/3165:
 #0: ff600000182ac0a0 (&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 syz-executor/3201:
2 locks held by syz.0.334/4779:
3 locks held by syz.0.1844/9796:
3 locks held by kworker/0:3/9836:
1 lock held by syz.0.1846/10636:
 #0: ff60000015572bc8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
 #0: ff60000015572bc8 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xe8/0x528 mm/readahead.c:226
2 locks held by syz.0.1935/11296:
2 locks held by syz.1.1937/11298:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 36 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 11298 Comm: syz.1.1937 Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
Hardware name: riscv-virtio,qemu (DT)
epc : obj_cgroup_put include/linux/memcontrol.h:827 [inline]
epc : mod_objcg_state+0x2c0/0x8a0 mm/memcontrol.c:2743
 ra : mod_objcg_state+0x4da/0x8a0 mm/memcontrol.c:2742
epc : ffffffff809a3b60 ra : ffffffff809a3d7a sp : ff200000034c7850
 gp : ffffffff897bea80 tp : ff6000002cf8cec0 t0 : ff6000002cf8d9e0
 t1 : ff6000002cf8da08 t2 : 0000000000000583 s0 : ff200000034c78e0
 s1 : ff6000006ec294a8 a0 : 0000000000000000 a1 : 0000000000000000
 a2 : 0000000000000000 a3 : ffffffff814a8fc2 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : 0000000000000003 a7 : 1fec0000059f1b40
 s2 : ffffffff898bca80 s3 : ffffffff90b60b00 s4 : ff6000006ec29480
 s5 : ff60000017bc2100 s6 : 0000000000000002 s7 : 0000000000000000
 s8 : ff60000072fed7c0 s9 : 0000000000000006 s10: fffffffffffffe20
 s11: ff6000006ec294d8 t3 : 1fec0000059f1b3b t4 : 000000000000000d
 t5 : 159459a3fb1f299a t6 : 1fec0000059f1b45
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff809a3b60>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff809a3b60>] mod_objcg_state+0x2c0/0x8a0 mm/memcontrol.c:2742
[<ffffffff809abf16>] __memcg_slab_free_hook+0x278/0x6d4 mm/memcontrol.c:3011
[<ffffffff808da4a4>] memcg_slab_free_hook mm/slub.c:2183 [inline]
[<ffffffff808da4a4>] slab_free mm/slub.c:4577 [inline]
[<ffffffff808da4a4>] kmem_cache_free+0x4e2/0x5f4 mm/slub.c:4682
[<ffffffff800b8570>] __vm_area_free+0xea/0x144 kernel/fork.c:515
[<ffffffff808a18fc>] remove_vma+0x138/0x17a mm/vma.c:335
[<ffffffff8084be76>] exit_mmap+0x452/0xbea mm/mmap.c:1888
[<ffffffff800b5f16>] __mmput kernel/fork.c:1347 [inline]
[<ffffffff800b5f16>] mmput+0x122/0x3e2 kernel/fork.c:1369
[<ffffffff800d8e02>] exit_mm kernel/exit.c:571 [inline]
[<ffffffff800d8e02>] do_exit+0x902/0x2986 kernel/exit.c:926
[<ffffffff800db3e6>] do_group_exit+0xd4/0x26c kernel/exit.c:1088
[<ffffffff800db5c8>] __do_sys_exit_group kernel/exit.c:1099 [inline]
[<ffffffff800db5c8>] __se_sys_exit_group kernel/exit.c:1097 [inline]
[<ffffffff800db5c8>] __riscv_sys_exit_group+0x4a/0x54 kernel/exit.c:1097
[<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