INFO: task syz-executor:20002 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11895-gcca7a0aae895-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21480 pid:20002 tgid:20002 ppid:1      task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 txBegin+0x26e/0xb10
 add_missing_indices+0xb0/0xce0
 jfs_readdir+0x1d8f/0x3ae0
 wrap_directory_iterator+0x96/0xe0
 iterate_dir+0x399/0x570
 __se_sys_getdents64+0xe4/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8922fc1553
RSP: 002b:00007ffc37c7eda8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 000055555d6b4640 RCX: 00007f8922fc1553
RDX: 0000000000008000 RSI: 000055555d6b4640 RDI: 0000000000000006
RBP: 000055555d6b4614 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffa8
R13: 0000000000000016 R14: 000055555d6b4610 R15: 00007ffc37c82150
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139ee0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5674:
 #0: ffff88810d3550a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
2 locks held by syz-executor/20002:
 #0: ffff888107923cf8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x247/0x320
 #1: ffff888111c7d870 (&type->i_mutex_dir_key#9){++++}-{4:4}, at: wrap_directory_iterator+0x5a/0xe0
9 locks held by syz-executor/32414:
 #0: ffff88810e9b0428 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x211/0xa90
 #1: ffff888032fd6488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1e0/0x4f0
 #2: ffff8881087ff788 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x203/0x4f0
 #3: ffffffff8edabba8 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x360
 #4: ffff88812b9530e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x800
 #5: ffff88812b954250 (&devlink->lock_key#10){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x160
 #6: ffffffff8f534688 (rtnl_mutex){+.+.}-{4:4}, at: nsim_destroy+0xe5/0x670
 #7: ffff888034888d28 (&dev_instance_lock_key#20){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x52f/0x1ff0
 #8: ffffffff8e13f978 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730
1 lock held by syz.7.9786/32460:
 #0: ffffffff8e13f978 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-syzkaller-11895-gcca7a0aae895-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8364 Comm: syz.4.800 Not tainted 6.16.0-syzkaller-11895-gcca7a0aae895-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:lock_release+0x27f/0x3e0
Code: 89 c5 7f d0 4c 89 ff 4c 89 f6 48 8b 54 24 18 e8 57 30 00 00 48 8b 5c 24 08 48 c7 c7 86 34 ba 8d e8 f6 43 db 09 b8 ff ff ff ff <65> 0f c1 05 99 a1 02 11 83 f8 01 75 51 48 c7 44 24 20 00 00 00 00
RSP: 0018:ffffc90004bee6b0 EFLAGS: 00000086
RAX: 00000000ffffffff RBX: 0000000000000002 RCX: 0a04a6645e666d00
RDX: 0000000000000004 RSI: ffffffff8dba3486 RDI: ffffffff8be32600
RBP: ffff888107cb61d0 R08: ffffc90004beeb50 R09: 0000000000000000
R10: ffffc90004bee838 R11: fffff5200097dd09 R12: 0000000000000004
R13: 0000000000000004 R14: ffffffff8e139ee0 R15: ffff888107cb5640
FS:  00007fc3a07e06c0(0000) GS:ffff8880b8623000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f7716f6e10 CR3: 000000010eec0000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c3/0x3d0
 fill_pool+0x100/0x570
 debug_object_activate+0x383/0x420
 call_rcu+0xaa/0x9c0
 xas_store+0xe88/0x1880
 __filemap_remove_folio+0x3c7/0x500
 filemap_remove_folio+0xe6/0x1f0
 truncate_inode_folio+0x5d/0x70
 shmem_undo_range+0x3a9/0x14b0
 shmem_evict_inode+0x272/0xa70
 evict+0x504/0x9c0
 __dentry_kill+0x209/0x660
 shrink_kill+0xa9/0x2c0
 shrink_dentry_list+0x2e0/0x5e0
 shrink_dcache_parent+0xa1/0x2c0
 do_one_tree+0x23/0xe0
 shrink_dcache_for_umount+0xa0/0x170
 generic_shutdown_super+0x67/0x2c0
 kill_litter_super+0x76/0xb0
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x425/0x4c0
 task_work_run+0x1d4/0x260
 do_exit+0x6b5/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc39f9c14a5
Code: Unable to access opcode bytes at 0x7fc39f9c147b.
RSP: 002b:00007fc3a07dff80 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007fc39fbb5fa0 RCX: 00007fc39f9c14a5
RDX: 00007fc3a07dffc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fc39fa11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fc39fbb6038 R14: 00007fc39fbb5fa0 R15: 00007fff60471658
 </TASK>
