INFO: task syz.1.1077:8159 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.1.1077      state:D stack:0     pid:8159  tgid:8158  ppid:7261   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/2997:
2 locks held by getty/3148:
 #0: ff6000001caa60a0 (&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
1 lock held by syz-executor/3174:
1 lock held by syz.1.155/4274:
3 locks held by syz-executor/5661:
3 locks held by kworker/1:3/7051:
1 lock held by syz.1.1077/8159:
 #0: ff600000156742c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
 #0: ff600000156742c8 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xe8/0x528 mm/readahead.c:226
2 locks held by kworker/u9:5/8232:
1 lock held by syz.1.1170/8757:

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

NMI backtrace for cpu 0
CPU: 0 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2997 Comm: klogd Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
Hardware name: riscv-virtio,qemu (DT)
epc : __sanitizer_cov_trace_pc+0x0/0x7a kernel/kcov.c:210
 ra : linear_mapping_va_to_pa arch/riscv/mm/physaddr.c:39 [inline]
 ra : __virt_to_phys+0x19c/0x262 arch/riscv/mm/physaddr.c:18
epc : ffffffff80430902 ra : ffffffff8002fb04 sp : ff20000007b374d0
 gp : ffffffff897bea80 tp : ff60000017f39a40 t0 : ff60000017f3a560
 t1 : ffebffff02200138 t2 : 000000000000001a s0 : ff20000007b37510
 s1 : ff60000036a88000 a0 : 0000000000000006 a1 : ffe0000000000000
 a2 : ff60000036a88000 a3 : ffffffff8002faf8 a4 : 0000000000000000
 a5 : ff60000017f3aa40 a6 : 0000000000000003 a7 : 1fec000002fe74b0
 s2 : ffe0000000000000 s3 : ffffffff87922580 s4 : 0080000000000000
 s5 : ffe0000000000000 s6 : ff20000007b37580 s7 : 00000000000000f5
 s8 : ffffffff879225b8 s9 : ffffffff87922578 s10: ffffffff87922580
 s11: ff6000003439ba00 t3 : 1fec000002fe74ab t4 : ffebffff02200138
 t5 : ffebffff02200139 t6 : 1fec000002fe74b5
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80430902>] __sanitizer_cov_trace_pc+0x0/0x7a kernel/kcov.c:442
[<ffffffff80972d92>] virt_to_folio include/linux/mm.h:1282 [inline]
[<ffffffff80972d92>] virt_to_slab mm/slab.h:206 [inline]
[<ffffffff80972d92>] qlink_to_cache mm/kasan/quarantine.c:131 [inline]
[<ffffffff80972d92>] qlist_free_all+0xa2/0x16c mm/kasan/quarantine.c:176
[<ffffffff80973412>] kasan_quarantine_reduce+0x158/0x1ba mm/kasan/quarantine.c:286
[<ffffffff8096f768>] __kasan_slab_alloc+0x5c/0x82 mm/kasan/common.c:329
[<ffffffff808db43a>] kasan_slab_alloc include/linux/kasan.h:247 [inline]
[<ffffffff808db43a>] slab_post_alloc_hook mm/slub.c:4086 [inline]
[<ffffffff808db43a>] slab_alloc_node mm/slub.c:4135 [inline]
[<ffffffff808db43a>] kmem_cache_alloc_node_noprof+0xfc/0x34e mm/slub.c:4187
[<ffffffff84c95094>] __alloc_skb+0x32c/0x42a net/core/skbuff.c:668
[<ffffffff84cade38>] alloc_skb include/linux/skbuff.h:1322 [inline]
[<ffffffff84cade38>] alloc_skb_with_frags+0xe2/0x836 net/core/skbuff.c:6612
[<ffffffff84c720fa>] sock_alloc_send_pskb+0x6e2/0x82a net/core/sock.c:2883
[<ffffffff85707fa6>] unix_dgram_sendmsg+0x3b8/0x15bc net/unix/af_unix.c:2027
[<ffffffff84c5e82a>] sock_sendmsg_nosec net/socket.c:729 [inline]
[<ffffffff84c5e82a>] __sock_sendmsg+0xcc/0x160 net/socket.c:744
[<ffffffff84c653a6>] __sys_sendto+0x230/0x320 net/socket.c:2209
[<ffffffff84c65556>] __do_sys_sendto net/socket.c:2221 [inline]
[<ffffffff84c65556>] __se_sys_sendto net/socket.c:2217 [inline]
[<ffffffff84c65556>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2217
[<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