rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6324/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=19445, q=421154 ncpus=2)
task:syz.0.145       state:R  running task     stack:24776 pid:6324  tgid:6308  ppid:5634   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5526 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7277
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7599
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_release+0x2e1/0x3c0 kernel/locking/lockdep.c:5968
Code: 02 f2 11 00 00 00 00 eb b5 e8 bb 62 42 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 13 be f1 11 48 3b 44 24 28 75 48 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 78 29 da
RSP: 0018:ffffc9000e6d68c8 EFLAGS: 00000282
RAX: 4b48f77878e38200 RBX: 0000000000000206 RCX: 0000000000000046
RDX: ffffc9000e6d6901 RSI: ffffffff8e69d180 RDI: ffffffff8c6da780
RBP: ffff88802a2dca30 R08: ffffc9000e6d6ad0 R09: 0000000000000000
R10: ffffc9000e6d69f8 R11: fffff52001cdad41 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8ed5c8e0 R15: ffff88802a2dbe80
 rcu_lock_release include/linux/rcupdate.h:319 [inline]
 rcu_read_unlock include/linux/rcupdate.h:880 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1216 [inline]
 unwind_next_frame+0x1baa/0x2550 arch/x86/kernel/unwind_orc.c:709
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:183
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:338
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
 __folio_put+0x4b3/0x590 mm/folio.c:106
 folio_put_refs include/linux/mm.h:2180 [inline]
 collapse_file mm/khugepaged.c:2643 [inline]
 collapse_scan_file+0x41d8/0x5180 mm/khugepaged.c:2772
 collapse_single_pmd+0x2a2/0x3c50 mm/khugepaged.c:2807
 madvise_collapse+0x2cf/0x790 mm/khugepaged.c:3231
 madvise_vma_behavior+0x1174/0x41d0 mm/madvise.c:1372
 madvise_walk_vmas+0x576/0xb00 mm/madvise.c:1721
 madvise_do_behavior+0x385/0x540 mm/madvise.c:1916
 do_madvise+0x327/0x3a0 mm/madvise.c:2014
 __do_sys_madvise mm/madvise.c:2023 [inline]
 __se_sys_madvise mm/madvise.c:2021 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:2021
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f3cf9e159
RSP: 002b:00007f2f3dd84028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f2f3d226180 RCX: 00007f2f3cf9e159
RDX: 0000000000000019 RSI: 0000000000600000 RDI: 0000200000000000
RBP: 00007f2f3d03506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2f3d226218 R14: 00007f2f3d226180 R15: 00007f2f3d34fa48
 </TASK>
ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!