INFO: task syz.3.334:9474 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.334       state:D stack:27360 pid:9474  tgid:9471  ppid:8219   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
 __down_read_common kernel/locking/rwsem.c:1248 [inline]
 __down_read kernel/locking/rwsem.c:1261 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
 inode_lock_shared include/linux/fs.h:828 [inline]
 lookup_slow+0x45/0x70 fs/namei.c:1807
 walk_component+0x2e1/0x410 fs/namei.c:2112
 lookup_last fs/namei.c:2610 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2634
 filename_lookup+0x2a3/0x670 fs/namei.c:2663
 user_path_at+0x3a/0x60 fs/namei.c:3070
 do_mount fs/namespace.c:3844 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x297/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f9577ff19
RSP: 002b:00007f2f935f6058 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2f95946160 RCX: 00007f2f9577ff19
RDX: 0000000020000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f2f957f3986 R08: 0000000020000080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2f95946160 R15: 00007fffb1011b28
 </TASK>
INFO: task syz.3.334:9475 blocked for more than 145 seconds.
      Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.334       state:D stack:27360 pid:9475  tgid:9471  ppid:8219   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
 __down_read_common kernel/locking/rwsem.c:1248 [inline]
 __down_read kernel/locking/rwsem.c:1261 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
 inode_lock_shared include/linux/fs.h:828 [inline]
 lookup_slow+0x45/0x70 fs/namei.c:1807
 walk_component+0x2e1/0x410 fs/namei.c:2112
 lookup_last fs/namei.c:2610 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2634
 filename_lookup+0x2a3/0x670 fs/namei.c:2663
 user_path_at+0x3a/0x60 fs/namei.c:3070
 do_mount fs/namespace.c:3844 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x297/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f9577ff19
RSP: 002b:00007f2f931d3058 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2f95946240 RCX: 00007f2f9577ff19
RDX: 0000000020000240 RSI: 00000000200000c0 RDI: 0000000000000000
RBP: 00007f2f957f3986 R08: 0000000020000580 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f2f95946240 R15: 00007fffb1011b28
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: ffffffff8e937aa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #0: ffffffff8e937aa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e937aa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
3 locks held by kworker/1:2/972:
2 locks held by kworker/u8:5/1087:
 #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
 #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
 #1: ffff8880b8628948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
1 lock held by dhcpcd/5489:
2 locks held by getty/5574:
 #0: ffff8880354f20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz.3.334/9473:
1 lock held by syz.3.334/9474:
 #0: ffff888077eac180 (&type->i_mutex_dir_key#25){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:828 [inline]
 #0: ffff888077eac180 (&type->i_mutex_dir_key#25){++++}-{4:4}, at: lookup_slow+0x45/0x70 fs/namei.c:1807
1 lock held by syz.3.334/9475:
 #0: ffff888077eac180 (&type->i_mutex_dir_key#25){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:828 [inline]
 #0: ffff888077eac180 (&type->i_mutex_dir_key#25){++++}-{4:4}, at: lookup_slow+0x45/0x70 fs/namei.c:1807
1 lock held by syz-executor/10503:
1 lock held by syz-executor/10711:
2 locks held by syz.6.468/11023:
 #0: ffffffff8f03ee68 (bio_slab_lock){+.+.}-{4:4}, at: bio_put_slab block/bio.c:140 [inline]
 #0: ffffffff8f03ee68 (bio_slab_lock){+.+.}-{4:4}, at: bioset_exit+0x42f/0x650 block/bio.c:1755
 #1: ffffffff8e93ce80 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4565
2 locks held by syz.9.471/11076:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
 watchdog+0xff6/0x1040 kernel/hung_task.c:397
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9473 Comm: syz.3.334 Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:PageTail include/linux/page-flags.h:281 [inline]
RIP: 0010:const_folio_flags include/linux/page-flags.h:309 [inline]
RIP: 0010:folio_test_head include/linux/page-flags.h:824 [inline]
RIP: 0010:folio_test_large include/linux/page-flags.h:845 [inline]
RIP: 0010:folio_nr_pages include/linux/mm.h:2058 [inline]
RIP: 0010:charge_memcg+0x39/0x1e0 mm/memcontrol.c:4497
Code: 89 fb 49 bc 00 00 00 00 00 fc ff df 48 8d 6f 08 48 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 ef e8 3b ab f6 ff 48 8b 45 00 <a8> 01 0f 85 79 01 00 00 0f 1f 44 00 00 48 89 df be 08 00 00 00 e8
RSP: 0018:ffffc900042ff9f0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffea0000f6a900 RCX: ffffc900042ff903
RDX: 0000000000100cca RSI: ffff88805a1e8000 RDI: ffffea0000f6a900
RBP: ffffea0000f6a908 R08: ffffffff90181b77 R09: 1ffffffff203036e
R10: dffffc0000000000 R11: fffffbfff203036f R12: dffffc0000000000
R13: 1ffff9200085ff50 R14: ffff88805a1e8000 R15: 0000000000100cca
FS:  00007f2f964a26c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f592e563360 CR3: 000000007d0f6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:4512
 mem_cgroup_charge include/linux/memcontrol.h:646 [inline]
 filemap_add_folio+0xb3/0x650 mm/filemap.c:966
 do_read_cache_folio+0x341/0x850 mm/filemap.c:3793
 read_mapping_folio include/linux/pagemap.h:1011 [inline]
 dir_get_folio fs/sysv/dir.c:64 [inline]
 sysv_find_entry+0x16a/0x4b0 fs/sysv/dir.c:154
 sysv_inode_by_name+0x98/0x2a0 fs/sysv/dir.c:370
 sysv_lookup+0x6b/0xe0 fs/sysv/namei.c:38
 lookup_one_qstr_excl+0x11f/0x260 fs/namei.c:1692
 filename_create+0x297/0x540 fs/namei.c:4081
 do_mkdirat+0xbd/0x3a0 fs/namei.c:4326
 __do_sys_mkdir fs/namei.c:4354 [inline]
 __se_sys_mkdir fs/namei.c:4352 [inline]
 __x64_sys_mkdir+0x6c/0x80 fs/namei.c:4352
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f9577ff19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2f964a2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f2f95946080 RCX: 00007f2f9577ff19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000300
RBP: 00007f2f957f3986 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2f95946080 R15: 00007fffb1011b28
 </TASK>