INFO: task syz.4.80:6894 blocked for more than 143 seconds.
      Not tainted 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.80        state:D stack:0     pid:6894  tgid:6874  ppid:6492   task_flags:0x400140 flags:0x00000011
Call trace:
 __switch_to+0x404/0x778 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x13b0/0x28d4 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6860
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6917
 rwsem_down_write_slowpath+0xa80/0x10f0 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0xb4/0xc0 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:867 [inline]
 do_truncate+0x164/0x1f0 fs/open.c:63
 handle_truncate fs/namei.c:3501 [inline]
 do_open fs/namei.c:3884 [inline]
 path_openat+0x25a0/0x2c40 fs/namei.c:4039
 do_filp_open+0x18c/0x36c fs/namei.c:4066
 do_sys_openat2+0x11c/0x1b4 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1455
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffff80008f4e7d20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
3 locks held by kworker/u8:3/45:
2 locks held by getty/6248:
 #0: ffff0000ccbff0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b5db2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa0 drivers/tty/n_tty.c:2222
3 locks held by syz-executor/6499:
4 locks held by kworker/u8:10/6629:
 #0: ffff0000c20e9948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212
 #1: ffff8000a35a7bc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c kernel/workqueue.c:3212
 #2: ffff0000cb4e20e0 (&type->s_umount_key#69){++++}-{4:4}, at: super_trylock_shared+0x24/0xdc fs/super.c:562
 #3: ffff0001031f53b0 (&sbi->gc_lock){+.+.}-{4:4}, at: f2fs_down_write fs/f2fs/f2fs.h:2213 [inline]
 #3: ffff0001031f53b0 (&sbi->gc_lock){+.+.}-{4:4}, at: f2fs_balance_fs+0x458/0x6b4 fs/f2fs/segment.c:454
2 locks held by syz.4.80/6894:
 #0: ffff0000cb4e2420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:556
 #1: ffff000109370148 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline]
 #1: ffff000109370148 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: do_truncate+0x164/0x1f0 fs/open.c:63
5 locks held by syz.4.80/6895:
2 locks held by kworker/u8:14/7428:
2 locks held by syz.6.671/9173:
1 lock held by syz.3.673/9179:
 #0: ffff0000c2a57050 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:146 [inline]
 #0: ffff0000c2a57050 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x180/0x43c mm/util.c:577
1 lock held by syz.3.673/9181:
4 locks held by syz.1.677/9196:

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