INFO: task syz-executor.1:6325 blocked for more than 143 seconds.
Not tainted 6.1.87-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28880 pid:6325 ppid:3560 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189
inode_lock_nested include/linux/fs.h:793 [inline]
filename_create+0x25c/0x530 fs/namei.c:3878
do_mkdirat+0xba/0x360 fs/namei.c:4123
__do_sys_mkdir fs/namei.c:4153 [inline]
__se_sys_mkdir fs/namei.c:4151 [inline]
__x64_sys_mkdir+0x6a/0x80 fs/namei.c:4151
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8f9547dea9
RSP: 002b:00007f8f9613e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f8f955ac050 RCX: 00007f8f9547dea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000300
RBP: 00007f8f954ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8f955ac050 R15: 00007ffee2bd49d8
</TASK>
INFO: task syz-executor.1:6326 blocked for more than 144 seconds.
Not tainted 6.1.87-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29096 pid:6326 ppid:3560 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189
inode_lock_nested include/linux/fs.h:793 [inline]
filename_create+0x25c/0x530 fs/namei.c:3878
do_mkdirat+0xba/0x360 fs/namei.c:4123
__do_sys_mkdir fs/namei.c:4153 [inline]
__se_sys_mkdir fs/namei.c:4151 [inline]
__x64_sys_mkdir+0x6a/0x80 fs/namei.c:4151
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8f9547dea9
RSP: 002b:00007f8f9611d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f8f955ac120 RCX: 00007f8f9547dea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000440
RBP: 00007f8f954ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8f955ac120 R15: 00007ffee2bd49d8
</TASK>
INFO: task syz-executor.1:6327 blocked for more than 144 seconds.
Not tainted 6.1.87-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27472 pid:6327 ppid:3560 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
rwsem_down_read_slowpath kernel/locking/rwsem.c:1094 [inline]
__down_read_common kernel/locking/rwsem.c:1261 [inline]
__down_read kernel/locking/rwsem.c:1274 [inline]
down_read+0x6ff/0xa30 kernel/locking/rwsem.c:1522
inode_lock_shared include/linux/fs.h:768 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1706
walk_component+0x2d0/0x400 fs/namei.c:1998
lookup_last fs/namei.c:2455 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2479
filename_lookup+0x251/0x600 fs/namei.c:2508
user_path_at_empty+0x3e/0x60 fs/namei.c:2907
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3391 [inline]
__do_sys_mount fs/namespace.c:3602 [inline]
__se_sys_mount+0x296/0x3c0 fs/namespace.c:3579
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8f9547dea9
RSP: 002b:00007f8f960fc0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8f955ac1f0 RCX: 00007f8f9547dea9
RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000
RBP: 00007f8f954ca4a4 R08: 0000000020000500 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8f955ac1f0 R15: 00007ffee2bd49d8
</TASK>
INFO: task syz-executor.1:6328 blocked for more than 145 seconds.
Not tainted 6.1.87-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28008 pid:6328 ppid:3560 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
rwsem_down_read_slowpath kernel/locking/rwsem.c:1094 [inline]
__down_read_common kernel/locking/rwsem.c:1261 [inline]
__down_read kernel/locking/rwsem.c:1274 [inline]
down_read+0x6ff/0xa30 kernel/locking/rwsem.c:1522
inode_lock_shared include/linux/fs.h:768 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1706
walk_component+0x2d0/0x400 fs/namei.c:1998
lookup_last fs/namei.c:2455 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2479
filename_lookup+0x251/0x600 fs/namei.c:2508
user_path_at_empty+0x3e/0x60 fs/namei.c:2907
user_path_at include/linux/namei.h:57 [inline]
__do_sys_chdir fs/open.c:514 [inline]
__se_sys_chdir+0xbb/0x220 fs/open.c:508
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8f9547dea9
RSP: 002b:00007f8f93bf20c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000050
RAX: ffffffffffffffda RBX: 00007f8f955ac2c0 RCX: 00007f8f9547dea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200001c0
RBP: 00007f8f954ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8f955ac2c0 R15: 00007ffee2bd49d8
</TASK>
INFO: task syz-executor.1:6330 blocked for more than 146 seconds.
Not tainted 6.1.87-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27776 pid:6330 ppid:3560 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189
inode_lock include/linux/fs.h:758 [inline]
open_last_lookups fs/namei.c:3549 [inline]
path_openat+0x7b6/0x2e60 fs/namei.c:3782
do_filp_open+0x230/0x480 fs/namei.c:3812
do_sys_openat2+0x13b/0x500 fs/open.c:1318
do_sys_open fs/open.c:1334 [inline]
__do_sys_creat fs/open.c:1410 [inline]
__se_sys_creat fs/open.c:1404 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1404
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8f9547dea9
RSP: 002b:00007f8f939cf0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f8f955ac390 RCX: 00007f8f9547dea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f8f954ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8f955ac390 R15: 00007ffee2bd49d8
</TASK>
Showing all locks held in the system:
2 locks held by kworker/u4:0/9:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d12ae50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d12b650 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494
2 locks held by getty/3306:
#0: ffff88802967a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188
3 locks held by kworker/1:3/3581:
#0: ffff8881426c0938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc9000400fd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffff88814438f190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#2: ffff88814438f190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5730 drivers/usb/core/hub.c:5789
3 locks held by kworker/u4:7/3696:
2 locks held by kworker/1:18/5617:
#0: ffff888012472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc9000459fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
3 locks held by syz-executor.1/6318:
2 locks held by syz-executor.1/6325:
#0: ffff888073b72460 (sb_writers#31){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888071680188 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff888071680188 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x25c/0x530 fs/namei.c:3878
2 locks held by syz-executor.1/6326:
#0: ffff888073b72460 (sb_writers#31){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888071680188 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff888071680188 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x25c/0x530 fs/namei.c:3878
1 lock held by syz-executor.1/6327:
#0: ffff888071680188 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888071680188 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1706
1 lock held by syz-executor.1/6328:
#0: ffff888071680188 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888071680188 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1706
2 locks held by syz-executor.1/6330:
#0: ffff888073b72460 (sb_writers#31){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888071680188 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888071680188 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: open_last_lookups fs/namei.c:3549 [inline]
#1: ffff888071680188 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: path_openat+0x7b6/0x2e60 fs/namei.c:3782
1 lock held by syz-executor.0/7378:
#0: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#0: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x360/0x930 kernel/rcu/tree_exp.h:962
1 lock held by syz-executor.3/8173:
2 locks held by syz-executor.3/8181:
#0: ffff888059988460 (sb_writers#31){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff8880716816a8 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff8880716816a8 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x25c/0x530 fs/namei.c:3878
1 lock held by syz-executor.3/8182:
#0: ffff8880716816a8 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff8880716816a8 (&type->i_mutex_dir_key#20){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1706
2 locks held by syz-executor.1/8668:
#0: ffff8880452b1410 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#0: ffff8880452b1410 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:653 [inline]
#0: ffff8880452b1410 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x98/0x230 net/socket.c:1400
#1: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#1: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f0/0x930 kernel/rcu/tree_exp.h:962
3 locks held by syz-executor.3/8682:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6449 Comm: syz-executor.1 Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__bpf_trace_mm_page_alloc+0xa9/0xe0 include/trace/events/kmem.h:177
Code: e8 3c 2e c3 08 8b 2c 24 44 89 7c 24 08 c7 04 24 00 00 00 00 48 89 e7 48 8d 74 24 08 ba 04 00 00 00 e8 1b 2e c3 08 44 8b 04 24 <4c> 89 f7 4c 89 e6 48 89 da 48 89 e9 e8 a6 99 cd ff 65 48 8b 04 25
RSP: 0018:ffffc90010cd75f8 EFLAGS: 00000292
RAX: ffffc90010cd75f8 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffffc90010cd7604 RDI: ffffc90010cd75fc
RBP: 0000000000140cca R08: 0000000000000001 R09: fffffbfff1ce6eee
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea00011ae100
R13: 0000000000140cca R14: ffffc9000e38b000 R15: 0000000000000001
FS: 0000555555aab480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555aabda8 CR3: 00000000293ed000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
trace_mm_page_alloc include/trace/events/kmem.h:177 [inline]
__alloc_pages+0x717/0x770 mm/page_alloc.c:5569
__folio_alloc+0xf/0x30 mm/page_alloc.c:5579
vma_alloc_folio+0x486/0x990 mm/mempolicy.c:2243
alloc_page_vma include/linux/gfp.h:284 [inline]
wp_page_copy+0x291/0x18c0 mm/memory.c:3134
handle_pte_fault mm/memory.c:5031 [inline]
__handle_mm_fault mm/memory.c:5155 [inline]
handle_mm_fault+0x2525/0x5340 mm/memory.c:5276
do_user_addr_fault arch/x86/mm/fault.c:1371 [inline]
handle_page_fault arch/x86/mm/fault.c:1462 [inline]
exc_page_fault+0x26f/0x660 arch/x86/mm/fault.c:1518
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:__put_user_nocheck_8+0x3/0x21
Code: 00 00 48 39 d9 73 34 0f 01 cb 89 01 31 c9 0f 01 ca c3 66 0f 1f 44 00 00 48 bb f9 ef ff ff ff 7f 00 00 48 39 d9 73 14 0f 01 cb <48> 89 01 31 c9 0f 01 ca c3 0f 1f 44 00 00 0f 01 ca b9 f2 ff ff ff
RSP: 0018:ffffc90010cd7d78 EFLAGS: 00050297
RAX: 0000000000000000 RBX: 00007fffffffeff9 RCX: 0000555555aabda8
RDX: 0000000000000000 RSI: ffffffff8aec1340 RDI: ffffffff8b3d4320
RBP: ffffc90010cd7ea8 R08: dffffc0000000000 R09: fffffbfff1ce6eee
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90010cd7e28
R13: dffffc0000000000 R14: 1ffff9200219affb R15: 0000000000000000
clear_rseq_cs kernel/rseq.c:228 [inline]
rseq_ip_fixup kernel/rseq.c:262 [inline]
__rseq_handle_notify_resume+0x5e6/0x1500 kernel/rseq.c:300
rseq_handle_notify_resume include/linux/sched.h:2329 [inline]
resume_user_mode_work include/linux/resume_user_mode.h:61 [inline]
exit_to_user_mode_loop+0xb4/0x100 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8dea87aed3
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffef782e488 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 000000000000013f RBX: 0000000000000000 RCX: 00007f8dea87aed3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000555555aab750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
</TASK>