INFO: task syz-executor:18564 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:24104 pid:18564 tgid:18564 ppid:5841   task_flags:0x400508 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 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: 0033:0x7f48d7184e13
RSP: 002b:00007fff82353708 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000000000004886 RCX: 00007f48d7184e13
RDX: 0000000040000000 RSI: 00007fff8235371c RDI: 00000000ffffffff
RBP: 00007fff8235371c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
 </TASK>
INFO: task syz.2.14847:26107 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.14847     state:D stack:25096 pid:26107 tgid:26107 ppid:23187  task_flags:0x400048 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 do_group_exit+0x21c/0x2d0
 __x64_sys_exit_group+0x3f/0x40
 x64_sys_call+0x21f7/0x2200
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6ab578ebe9
RSP: 002b:00007ffe4b264ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6ab578ebe9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffe4b264b3c R08: 0000001e4b264bcf R09: 00000000000927c0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000122
R13: 00000000000927c0 R14: 00000000002a4f6e R15: 00007ffe4b264b90
 </TASK>
INFO: task syz.2.14847:26108 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.14847     state:D stack:26480 pid:26108 tgid:26107 ppid:23187  task_flags:0x400548 flags:0x00004002
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 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: 0033:0x7f6ab578ebe9
RSP: 002b:00007f6ab66c3038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: fffffffffffffe00 RBX: 00007f6ab59b5fa0 RCX: 00007f6ab578ebe9
RDX: 0000000000000000 RSI: 0000200000000400 RDI: 0000000000000004
RBP: 00007f6ab5811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6ab59b6038 R14: 00007f6ab59b5fa0 R15: 00007ffe4b264778
 </TASK>
INFO: task syz.2.14847:26111 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.14847     state:D stack:25432 pid:26111 tgid:26107 ppid:23187  task_flags:0x400548 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 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: 0033:0x7f6ab578ebe9
RSP: 002b:00007f6ab66a20e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6ab59b6098 RCX: 00007f6ab578ebe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6ab59b6098
RBP: 00007f6ab59b6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6ab59b6128 R14: 00007ffe4b264690 R15: 00007ffe4b264778
 </TASK>
INFO: task syz.4.14855:26132 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.14855     state:D stack:24976 pid:26132 tgid:26132 ppid:18573  task_flags:0x400448 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 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: 0033:0x7f974238ebe9
RSP: 002b:00007ffe00e88dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f97425b7da0 RCX: 00007f974238ebe9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f97425b7da0 R08: 0000000000000000 R09: 0000001e00e890cf
R10: 00007f97425b7cb0 R11: 0000000000000246 R12: 00000000002a53cf
R13: 00007f97425b6180 R14: ffffffffffffffff R15: 00007ffe00e88ef0
 </TASK>
INFO: task syz.4.14855:26133 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.14855     state:D stack:27256 pid:26133 tgid:26132 ppid:18573  task_flags:0x400548 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 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: 0033:0x7f974238ebe9
RSP: 002b:00007f974329a038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: fffffffffffffe00 RBX: 00007f97425b5fa0 RCX: 00007f974238ebe9
RDX: 0000000000000000 RSI: 0000200000000400 RDI: 0000000000000004
RBP: 00007f9742411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f97425b6038 R14: 00007f97425b5fa0 R15: 00007ffe00e88c78
 </TASK>
INFO: task syz.4.14855:26135 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.14855     state:D stack:24504 pid:26135 tgid:26132 ppid:18573  task_flags:0x400548 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 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: 0033:0x7f974238ebe9
RSP: 002b:00007f97432790e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f97425b6098 RCX: 00007f974238ebe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f97425b6098
RBP: 00007f97425b6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f97425b6128 R14: 00007ffe00e88b90 R15: 00007ffe00e88c78
 </TASK>
INFO: task syz.4.14855:26137 blocked for more than 144 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.14855     state:D stack:24656 pid:26137 tgid:26132 ppid:18573  task_flags:0x400548 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 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: 0033:0x7f974238ebe9
RSP: 002b:00007f97432580e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f97425b6188 RCX: 00007f974238ebe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f97425b6188
RBP: 00007f97425b6180 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f97425b6218 R14: 00007ffe00e88b90 R15: 00007ffe00e88c78
 </TASK>
INFO: task syz.8.14854:26134 blocked for more than 144 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.14854     state:D stack:21520 pid:26134 tgid:26134 ppid:18566  task_flags:0x400648 flags:0x00004002
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 irqentry_exit_to_user_mode+0x81/0x120
 exc_page_fault+0x9f/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f48d704f927
RSP: 002b:00007f48d7f6c0e0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007f48d718ebe9
RDX: 00007f48d7f6c100 RSI: 00007f48d7f6c230 RDI: 000000000000000b
RBP: 00007f48d7211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f48d73b6038 R14: 00007f48d73b5fa0 R15: 00007fff823531b8
 </TASK>
INFO: task syz.8.14856:26142 blocked for more than 144 seconds.
      Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.14856     state:D stack:28368 pid:26142 tgid:26142 ppid:26141  task_flags:0x400048 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 percpu_rwsem_wait+0x2e3/0x330
 __percpu_down_read+0xf0/0x130
 exit_signals+0x42e/0x580
 do_exit+0x352/0x2300
 __x64_sys_exit+0x40/0x40
 x64_sys_call+0x21da/0x2200
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f48d718ebe9
RSP: 002b:00007f48d7f48fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 00007f48d73b6180 RCX: 00007f48d718ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f48d7211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f48d73b6218 R14: 00007f48d73b6180 R15: 00007fff823531b8
 </TASK>
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139e60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5673:
 #0: ffff888108dd30a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by kworker/u9:21/6400:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
2 locks held by kworker/u9:28/6791:
 #0: ffff88801a489148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90006897bc0 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
2 locks held by kworker/u9:7/17302:
 #0: ffff88801a489148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900001efbc0 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
1 lock held by syz-executor/18564:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by kworker/u11:3/18571:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by kworker/u10:13/19987:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
2 locks held by kworker/u10:15/19989:
 #0: ffff88801a489148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90007e87bc0 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
1 lock held by syz.2.14847/26107:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by syz.2.14847/26108:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by syz.2.14847/26111:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by syz.4.14855/26132:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by syz.4.14855/26133:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by syz.4.14855/26135:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by syz.4.14855/26137:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
1 lock held by syz.8.14854/26134:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300
10 locks held by syz.8.14856/26141:
1 lock held by syz.8.14856/26142:
 #0: ffffffff8e1712d0 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: do_exit+0x352/0x2300

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #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: 26141 Comm: syz.8.14856 Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #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:hrtimer_interrupt+0x893/0xaa0
Code: fc ff ff f3 0f 1e fa e8 5b f7 11 00 bf 08 00 00 00 e8 c1 59 d7 ff e9 c0 fb ff ff e8 47 f7 11 00 48 8b 44 24 18 42 0f b6 04 30 <84> c0 0f 85 63 01 00 00 48 8b 04 24 80 20 fb e9 be 00 00 00 4c 8d
RSP: 0018:ffffc90000007098 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff88804b027a80 RCX: ffff888022313980
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88804b027ad4 R08: 0000000000000000 R09: ffffffff81adfebe
R10: 0000000000000003 R11: ffffffff81703490 R12: 0000000000000000
R13: 000002ac0e913a5b R14: dffffc0000000000 R15: 0000000000000008
FS:  00007f48d7f496c0(0000) GS:ffff8880b862a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555559ef45c8 CR3: 00000001145fc000 CR4: 00000000000006f0
DR0: 00000000000000fd DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_acquire+0x2e1/0x360
Code: 8b 7c 24 28 4c 8b 64 24 20 48 8b ac 24 98 00 00 00 4c 8b 6c 24 18 0f 83 6b fd ff ff 65 ff 05 e6 04 02 11 48 8b 05 f7 07 f0 0d <48> 85 c0 74 2f 48 8b 78 08 48 8b 74 24 18 8b 54 24 08 8b 4c 24 04
RSP: 0018:ffffc900000072b8 EFLAGS: 00000203
RAX: ffff88801c359c10 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e139e60
RBP: ffffffff8172c025 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000007478 R11: ffffffff81ac34b0 R12: 0000000000000002
R13: ffffffff8e139e60 R14: 0000000000000000 R15: 0000000000000000
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 dst_alloc+0x105/0x170
 icmp6_dst_alloc+0x75/0x420
 ndisc_send_skb+0x41f/0x1440
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 4b 6e 17 f6 e8 46 b1 4e f6 fb bf 01 00 00 00 <e8> 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc9000a3e6e80 EFLAGS: 00000282
RAX: f5fc6c3837d9d200 RBX: 0000000000000000 RCX: f5fc6c3837d9d200
RDX: 0000000000000007 RSI: ffffffff8d9b1618 RDI: 0000000000000001
RBP: ffffc9000a3e6f30 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200147cdd0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_release+0x2b5/0x3e0
Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 cb f3 01 11 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc9000a3e6ff0 EFLAGS: 00000206
RAX: f5fc6c3837d9d200 RBX: 0000000000000202 RCX: f5fc6c3837d9d200
RDX: 0000000000000007 RSI: ffffffff8dba01e6 RDI: ffffffff8be2fd00
RBP: ffff888022314588 R08: ffffc9000a3e7448 R09: 0000000000000000
R10: ffffc9000a3e7178 R11: fffff5200147ce31 R12: 0000000000000007
R13: 0000000000000007 R14: ffffffff8e139e60 R15: ffff888022313980
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xbc4/0xd30
 __put_partials+0x156/0x1a0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2d5/0x3c0
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 __kmalloc_cache_noprof+0x1be/0x3d0
 allocate_cgrp_cset_links+0xc9/0x320
 find_css_set+0x9dd/0x1560
 cgroup_migrate_prepare_dst+0x130/0x700
 cgroup_attach_task+0x5ae/0x970
 __cgroup1_procs_write+0x2cd/0x3c0
 cgroup_file_write+0x39e/0x740
 kernfs_fop_write_iter+0x378/0x4f0
 vfs_write+0x54b/0xa90
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f48d718ebe9
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:00007f48d7f49038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f48d73b6180 RCX: 00007f48d718ebe9
RDX: 0000000000000012 RSI: 00002000000001c0 RDI: 0000000000000012
RBP: 00007f48d7211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f48d73b6218 R14: 00007f48d73b6180 R15: 00007fff823531b8
 </TASK>
