rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8810/1:b..l P8796/1:b..l P8593/1:b..l P6018/1:b..l P8772/1:b..l P8813/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=31697, q=247 ncpus=2)
task:syz.3.663       state:R  running task     stack:27264 pid:8813  tgid:8813  ppid:5822   task_flags:0x40004c flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:7078
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:392 [inline]
 zap_pte_range mm/memory.c:1884 [inline]
 zap_pmd_range mm/memory.c:1946 [inline]
 zap_pud_range mm/memory.c:1975 [inline]
 zap_p4d_range mm/memory.c:1996 [inline]
 unmap_page_range+0x38be/0x4170 mm/memory.c:2017
 unmap_single_vma mm/memory.c:2059 [inline]
 unmap_vmas+0x399/0x580 mm/memory.c:2101
 exit_mmap+0x239/0xb10 mm/mmap.c:1277
 __mmput+0x118/0x430 kernel/fork.c:1173
 exit_mm+0x169/0x230 kernel/exit.c:581
 do_exit+0x627/0x22f0 kernel/exit.c:959
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121
 x64_sys_call+0x2210/0x2210 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45bfd8f749
RSP: 002b:00007ffe10900ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f45bfd8f749
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffe10900b3c R08: 0000000910900bcf R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000095
R13: 00000000000927c0 R14: 0000000000059e80 R15: 00007ffe10900b90
 </TASK>
task:syz.4.657       state:R  running task     stack:25240 pid:8772  tgid:8771  ppid:5820   task_flags:0x400140 flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:7078
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 vprintk_emit+0x4bb/0x550 kernel/printk/printk.c:2429
 _printk+0xcf/0x120 kernel/printk/printk.c:2453
 _btrfs_printk+0x28c/0x310 fs/btrfs/messages.c:236
 btrfs_emit_options+0x3cef/0x4130 fs/btrfs/super.c:1496
 btrfs_fill_super fs/btrfs/super.c:987 [inline]
 btrfs_get_tree_super fs/btrfs/super.c:1944 [inline]
 btrfs_get_tree_subvol fs/btrfs/super.c:2087 [inline]
 btrfs_get_tree+0x107e/0x1930 fs/btrfs/super.c:2121
 vfs_get_tree+0x92/0x2a0 fs/super.c:1751
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3630 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3706
 do_mount fs/namespace.c:4029 [inline]
 __do_sys_mount fs/namespace.c:4218 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4195
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fea5a590eea
RSP: 002b:00007fea5b359e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fea5b359ef0 RCX: 00007fea5a590eea
RDX: 00002000000051c0 RSI: 0000200000005200 RDI: 00007fea5b359eb0
RBP: 00002000000051c0 R08: 00007fea5b359ef0 R09: 0000000001204408
R10: 0000000001204408 R11: 0000000000000246 R12: 0000200000005200
R13: 00007fea5b359eb0 R14: 00000000000051ab R15: 0000200000000340
 </TASK>
task:kworker/u8:14   state:R  running task     stack:21848 pid:6018  tgid:6018  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7221
 irqentry_exit+0x5e3/0x670 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_release+0x2d8/0x3b0 kernel/locking/lockdep.c:5893
Code: ae 03 11 00 00 00 00 eb b5 e8 c4 6a bf 09 f7 c3 00 02 00 00 74 b9 65 48 8b 05 e4 68 03 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 09 49 c2 09 cc 48 8d 3d 71 7f 07
RSP: 0018:ffffc90004e27560 EFLAGS: 00000286
RAX: 8810b26fe7a3a700 RBX: 0000000000000202 RCX: 0000000000000046
RDX: 0000000000000003 RSI: ffffffff8db845c0 RDI: ffffffff8be08c60
RBP: ffff888022324800 R08: ffffc90004e27d00 R09: 0000000000000000
R10: ffffc90004e276b8 R11: fffff520009c4ed9 R12: 0000000000000003
R13: 0000000000000003 R14: ffffffff8e13efa0 R15: ffff888022323c80
 rcu_lock_release include/linux/rcupdate.h:322 [inline]
 rcu_read_unlock include/linux/rcupdate.h:881 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1193 [inline]
 unwind_next_frame+0x1ab1/0x23d0 arch/x86/kernel/unwind_orc.c:695
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2556 [inline]
 slab_free mm/slub.c:6690 [inline]
 kmem_cache_free+0x197/0x620 mm/slub.c:6801
 kfree_skb_reason include/linux/skbuff.h:1322 [inline]
 kfree_skb include/linux/skbuff.h:1331 [inline]
 ieee80211_iface_work+0xb2a/0x12d0 net/mac80211/iface.c:1792
 cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438
 process_one_work+0x93a/0x15a0 kernel/workqueue.c:3279
 process_scheduled_works kernel/workqueue.c:3362 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3443
 kthread+0x389/0x480 kernel/kthread.c:467
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:syz.1.609       state:R  running task     stack:22304 pid:8593  tgid:8593  ppid:5819   task_flags:0x40064c flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7221
 irqentry_exit+0x5e3/0x670 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x222/0x340 kernel/locking/lockdep.c:5872
Code: ff ff ff e8 60 9c bf 09 f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 7a 9a 03 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 97 ad 07
RSP: 0018:ffffc90014feed98 EFLAGS: 00000282
RAX: 2d0391529f20ad00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 000000005a44979c RSI: ffffffff8db845c0 RDI: ffffffff8be08c60
RBP: ffffffff8173fd75 R08: ffffffff8173fd75 R09: ffffffff8e13efa0
R10: ffffc90014feeef8 R11: ffffffff81acb2b0 R12: 0000000000000002
R13: ffffffff8e13efa0 R14: 0000000000000000 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
 unwind_next_frame+0xc2/0x23d0 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 save_stack+0xf5/0x1f0 mm/page_owner.c:165
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1436 [inline]
 free_unref_folios+0xcc0/0x13e0 mm/page_alloc.c:3033
 folios_put_refs+0x584/0x670 mm/swap.c:1002
 folio_batch_release include/linux/pagevec.h:101 [inline]
 shmem_undo_range+0x49e/0x1490 mm/shmem.c:1137
 shmem_truncate_range mm/shmem.c:1249 [inline]
 shmem_evict_inode+0x26e/0xa70 mm/shmem.c:1379
 evict+0x5f4/0xae0 fs/inode.c:837
 __dentry_kill+0x209/0x660 fs/dcache.c:670
 finish_dput+0xc9/0x480 fs/dcache.c:879
 __fput+0x68e/0xa70 fs/file_table.c:476
 task_work_run+0x1d4/0x260 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x694/0x22f0 kernel/exit.c:971
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
 get_signal+0x1285/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:75 [inline]
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline]
 irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline]
 irqentry_exit+0x178/0x670 kernel/entry/common.c:196
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fe9df38f751
RSP: 002b:fffffffffffffe70 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fe9df5e5fa0 RCX: 00007fe9df38f749
RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000008000
RBP: 00007fe9df413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fe9df5e6038 R14: 00007fe9df5e5fa0 R15: 00007ffd838e6308
 </TASK>
task:udevadm         state:R  running task     stack:24280 pid:8796  tgid:8796  ppid:5997   task_flags:0x400000 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7221
 irqentry_exit+0x5e3/0x670 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__lookup_mnt+0xb0/0x150 fs/namespace.c:795
Code: 46 02 e5 ff 4d 8b 3f 4d 85 ff 74 7f 4d 8d 67 10 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 24 02 e5 ff 49 8b 04 24 <48> 83 c0 20 4c 39 f0 74 07 e8 42 31 7e ff eb 25 4d 8d 67 18 4c 89
RSP: 0018:ffffc90004d07700 EFLAGS: 00000246
RAX: ffff888140447180 RBX: ffff88823bf9cec8 RCX: 000000000000000e
RDX: 0000000000000000 RSI: 000000000000000e RDI: 0000000000000040
RBP: ffff88823bf9cec8 R08: ffff88823bf9cf38 R09: 1ffff110477f39e7
R10: dffffc0000000000 R11: ffffed10477f39e8 R12: ffff88803472a710
R13: dffffc0000000000 R14: ffff8881404471a0 R15: ffff88803472a700
 __follow_mount_rcu+0x150/0x560 fs/namei.c:1651
 handle_mounts fs/namei.c:1683 [inline]
 step_into_slowpath+0x4bc/0x7d0 fs/namei.c:2049
 step_into fs/namei.c:2097 [inline]
 walk_component fs/namei.c:2233 [inline]
 link_path_walk+0xd50/0x18d0 fs/namei.c:2595
 path_openat+0x2b0/0x3840 fs/namei.c:4789
 do_filp_open+0x1fa/0x410 fs/namei.c:4820
 do_sys_openat2+0x121/0x200 fs/open.c:1391
 do_sys_open fs/open.c:1397 [inline]
 __do_sys_openat fs/open.c:1413 [inline]
 __se_sys_openat fs/open.c:1408 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1408
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0a9b2a7407
RSP: 002b:00007ffed5608840 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0a9ba9f880 RCX: 00007f0a9b2a7407
RDX: 0000000000080000 RSI: 00007ffed56089b0 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055e8f9437ee0
R13: 000055e8f9437ee0 R14: 0000000000000001 R15: 000055e8fd84be60
 </TASK>
task:syz.2.661       state:R  running task     stack:26368 pid:8810  tgid:8801  ppid:5818   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7221
 irqentry_exit+0x5e3/0x670 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:debug_lockdep_rcu_enabled+0x16/0x40 kernel/rcu/update.c:320
Code: cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d 13 c7 44 04 00 74 1e 83 3d 0a f6 44 04 00 <74> 15 65 48 8b 0c 25 08 90 a1 92 31 c0 83 b9 04 0b 00 00 00 0f 94
RSP: 0018:ffffc90004b9ee50 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff90442f01 RCX: ffffc90004b9f2e8
RDX: ffffc90004b9ef01 RSI: dffffc0000000000 RDI: ffffc90004b9ef30
RBP: dffffc0000000000 R08: ffffc90004b9f2d0 R09: 0000000000000000
R10: ffffc90004b9ef78 R11: fffff52000973df1 R12: ffffc90004b9f2e0
R13: ffffc90004b98000 R14: ffffc90004b9ef28 R15: ffffffff8173fd75
 rcu_read_unlock include/linux/rcupdate.h:879 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1193 [inline]
 unwind_next_frame+0x1a64/0x23d0 arch/x86/kernel/unwind_orc.c:695
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2556 [inline]
 slab_free mm/slub.c:6690 [inline]
 kmem_cache_free+0x197/0x620 mm/slub.c:6801
 skb_release_data+0x62d/0x7c0 net/core/skbuff.c:1107
 skb_release_all net/core/skbuff.c:1182 [inline]
 __kfree_skb net/core/skbuff.c:1196 [inline]
 consume_skb+0x9e/0xf0 net/core/skbuff.c:1428
 netlink_broadcast_filtered+0xec7/0x1000 net/netlink/af_netlink.c:1535
 nlmsg_multicast_filtered include/net/netlink.h:1165 [inline]
 nlmsg_multicast include/net/netlink.h:1184 [inline]
 nlmsg_notify+0xf0/0x1a0 net/netlink/af_netlink.c:2593
 inet6_ifmcaddr_notify+0x134/0x1d0 net/ipv6/mcast.c:923
 __ipv6_dev_mc_inc+0x8a9/0xa50 net/ipv6/mcast.c:973
 ipv6_add_dev+0xe52/0x13c0 net/ipv6/addrconf.c:472
 addrconf_notify+0x771/0x1050 net/ipv6/addrconf.c:3650
 notifier_call_chain+0x19d/0x3a0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2268 [inline]
 call_netdevice_notifiers net/core/dev.c:2282 [inline]
 register_netdevice+0x15bd/0x1a70 net/core/dev.c:11431
 __ip_tunnel_create+0x3d7/0x550 net/ipv4/ip_tunnel.c:268
 ip_tunnel_init_net+0x2ba/0x800 net/ipv4/ip_tunnel.c:1147
 ops_init+0x35c/0x5c0 net/core/net_namespace.c:137
 setup_net+0x110/0x330 net/core/net_namespace.c:446
 copy_net_ns+0x3e3/0x570 net/core/net_namespace.c:581
 create_new_namespaces+0x3e7/0x6a0 kernel/nsproxy.c:130
 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:226
 ksys_unshare+0x4c8/0x8c0 kernel/fork.c:3168
 __do_sys_unshare kernel/fork.c:3239 [inline]
 __se_sys_unshare kernel/fork.c:3237 [inline]
 __x64_sys_unshare+0x38/0x50 kernel/fork.c:3237
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d43b8f749
RSP: 002b:00007f5d41dd5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f5d43de6180 RCX: 00007f5d43b8f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000062040200
RBP: 00007f5d43c13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5d43de6218 R14: 00007f5d43de6180 R15: 00007fff104f3518
 </TASK>
rcu: rcu_preempt kthread starved for 10661 jiffies! g31697 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28080 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 __schedule_loop kernel/sched/core.c:6976 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6991
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x11b0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9b/0x2d0 kernel/rcu/tree.c:2297
 kthread+0x389/0x480 kernel/kthread.c:467
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:82
Code: cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 43 be 2a 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffffff8de07dc0 EFLAGS: 000002c2
RAX: 00000000007c233d RBX: ffffffff8197161e RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8d9a0b7f RDI: ffffffff8be08c60
RBP: ffffffff8de07eb0 R08: ffff8880b863375b R09: 1ffff110170c66eb
R10: dffffc0000000000 R11: ffffed10170c66ec R12: ffffffff8fa25d70
R13: 1ffffffff1bd29b8 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125c07000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1cca6344bd CR3: 000000007934e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x73/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x1be/0x4d0 kernel/sched/idle.c:332
 cpu_startup_entry+0x44/0x60 kernel/sched/idle.c:430
 rest_init+0x2de/0x300 init/main.c:757
 start_kernel+0x386/0x3d0 init/main.c:1207
 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
 x86_64_start_kernel+0x143/0x1c0 arch/x86/kernel/head64.c:291
 common_startup_64+0x13e/0x147
 </TASK>