INFO: task syz.1.170:5563 blocked for more than 432 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.1.170       state:D stack:0     pid:5563  tgid:5559  ppid:3191   flags:0x00000006
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
[<ffffffff85fe693c>] io_schedule+0x78/0xd4 kernel/sched/core.c:7552
[<ffffffff806fac7c>] folio_wait_bit_common+0x398/0x944 mm/filemap.c:1309
[<ffffffff80705210>] __folio_lock mm/filemap.c:1647 [inline]
[<ffffffff80705210>] folio_lock include/linux/pagemap.h:1148 [inline]
[<ffffffff80705210>] folio_lock include/linux/pagemap.h:1144 [inline]
[<ffffffff80705210>] __filemap_get_folio+0x470/0x866 mm/filemap.c:1900
[<ffffffff807454d2>] truncate_inode_pages_range+0x344/0xd78 mm/truncate.c:351
[<ffffffff80745f28>] truncate_inode_pages+0x22/0x2e mm/truncate.c:423
[<ffffffff8126feca>] kill_bdev block/bdev.c:91 [inline]
[<ffffffff8126feca>] blkdev_flush_mapping+0xf8/0x28a block/bdev.c:671
[<ffffffff8127012a>] blkdev_put_whole+0xce/0xee block/bdev.c:678
[<ffffffff81273af4>] bdev_release+0x3fe/0x600 block/bdev.c:1103
[<ffffffff81274ad6>] blkdev_release+0x1a/0x26 block/fops.c:639
[<ffffffff80a2c758>] __fput+0x378/0x9e6 fs/file_table.c:431
[<ffffffff80a2ce6c>] ____fput+0x1c/0x26 fs/file_table.c:459
[<ffffffff8014fb7c>] task_work_run+0x16a/0x25e kernel/task_work.c:228
[<ffffffff8010be48>] get_signal+0x1aa/0x23b0 kernel/signal.c:2690
[<ffffffff8000bb06>] arch_do_signal_or_restart+0x8d6/0x1190 arch/riscv/kernel/signal.c:437
[<ffffffff85fdac04>] exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
[<ffffffff85fdac04>] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
[<ffffffff85fdac04>] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
[<ffffffff85fdac04>] syscall_exit_to_user_mode+0x2a6/0x31e kernel/entry/common.c:218
[<ffffffff85fd9b26>] do_trap_ecall_u+0x86/0x216 arch/riscv/kernel/traps.c:345
[<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/2998:
2 locks held by dhcpcd/3042:
 #0: ff6000002e46c6c8 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x140/0x83e net/netlink/af_netlink.c:2404
 #1: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #1: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x1a2/0x1f6 net/core/rtnetlink.c:6505
2 locks held by getty/3149:
 #0: ff600000186240a0 (&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/3174:
4 locks held by kworker/u8:2/3546:
2 locks held by kworker/1:5/3901:
4 locks held by kworker/u10:15/4206:
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:593 [inline]
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1505 [inline]
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1804 [inline]
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x280/0x3886 kernel/sched/core.c:6575
 #1: ff6000006ec3a648 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x23e/0x732 kernel/sched/psi.c:989
 #2: ffffffff90a708f0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x16a/0x378 lib/debugobjects.c:708
 #3: ffffffff90a68aa8 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x16a/0x378 lib/debugobjects.c:708
1 lock held by syz.1.170/5563:
 #0: ff6000001a2504c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x12c/0x600 block/bdev.c:1087
3 locks held by kworker/u10:0/5632:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff20000001837c90 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
 #2: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79
3 locks held by kworker/u8:3/6433:
 #0: ff6000001c7ab948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff20000003577c90 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
 #2: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79
4 locks held by syz-executor/6536:
1 lock held by syz-executor/6549:
 #0: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e2/0xdbe net/core/rtnetlink.c:6643

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

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: 6510 Comm: kworker/1:2 Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events nsim_dev_trap_report_work
epc : __sbi_ecall+0x4c/0x76 arch/riscv/kernel/sbi_ecall.c:41
 ra : __sbi_ecall+0x38/0x76 arch/riscv/kernel/sbi_ecall.c:27
epc : ffffffff8001fb16 ra : ffffffff8001fb02 sp : ff20000003bf7260
 gp : ffffffff897bea80 tp : ff600000111c4ec0 t0 : ff20000003bf77a0
 t1 : ffebffff0dd8a6fa t2 : 000000000000052e s0 : ff20000003bf72c0
 s1 : 0000000000735049 a0 : 0000000000000000 a1 : 0000000000000000
 a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000
 a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000000735049
 s2 : 0000000000000000 s3 : 0000000000000000 s4 : 0000000000000000
 s5 : 0000000000000000 s6 : 0000000000000000 s7 : 0000000000000000
 s8 : 0000000000000001 s9 : ffffffff898bcf00 s10: 0000000000000000
 s11: 0000000000000001 t3 : 1fec000002238b3b t4 : ffebffff0dd8a6fa
 t5 : ffebffff0dd8a6fb t6 : 1fec000002238b4f
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff8001fb16>] __sbi_ecall+0x4c/0x76 arch/riscv/kernel/sbi_ecall.c:37
[<ffffffff8001de04>] __sbi_send_ipi_v02+0xbc/0x20e arch/riscv/kernel/sbi.c:195
[<ffffffff8001da9e>] sbi_send_ipi+0x20/0x2a arch/riscv/kernel/sbi.c:319
[<ffffffff802a2796>] ipi_mux_send_mask+0x2d0/0x358 kernel/irq/ipi-mux.c:87
[<ffffffff802a1bf8>] __ipi_send_mask+0x7a/0x5bc kernel/irq/ipi.c:285
[<ffffffff80018c8e>] send_ipi_single arch/riscv/kernel/smp.c:108 [inline]
[<ffffffff80018c8e>] arch_irq_work_raise+0x52/0x78 arch/riscv/kernel/smp.c:114
[<ffffffff804c69a8>] irq_work_raise kernel/irq_work.c:84 [inline]
[<ffffffff804c69a8>] __irq_work_queue_local+0x104/0x474 kernel/irq_work.c:112
[<ffffffff804c6d68>] irq_work_queue kernel/irq_work.c:124 [inline]
[<ffffffff804c6d68>] irq_work_queue+0x50/0xfe kernel/irq_work.c:116
[<ffffffff80977a28>] __kfence_alloc+0x1202/0x1660 mm/kfence/core.c:1112
[<ffffffff808db514>] kfence_alloc include/linux/kfence.h:129 [inline]
[<ffffffff808db514>] slab_alloc_node mm/slub.c:4119 [inline]
[<ffffffff808db514>] kmem_cache_alloc_node_noprof+0x1d6/0x34e mm/slub.c:4187
[<ffffffff84c95094>] __alloc_skb+0x32c/0x42a net/core/skbuff.c:668
[<ffffffff83319c78>] alloc_skb include/linux/skbuff.h:1322 [inline]
[<ffffffff83319c78>] nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
[<ffffffff83319c78>] nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
[<ffffffff83319c78>] nsim_dev_trap_report_work+0x24a/0xbfa drivers/net/netdevsim/dev.c:850
[<ffffffff80135b72>] process_one_work+0x956/0x1dae kernel/workqueue.c:3229
[<ffffffff80137588>] process_scheduled_works kernel/workqueue.c:3310 [inline]
[<ffffffff80137588>] worker_thread+0x5be/0xdc6 kernel/workqueue.c:3391
[<ffffffff80154e14>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85ffcbde>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326