rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=a7c4/1/0x4000000000000000 softirq=59810/59811 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P16072/1:b..l
rcu: 	(detected by 0, t=10505 jiffies, g=64237, q=520 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 16065 Comm: syz.9.2620 Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_preemption_disabled+0x7/0x120 lib/smp_processor_id.c:13
Code: c6 e0 c2 5e 8c eb 1c 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 41 54 53 <48> 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d 1c
RSP: 0018:ffffc90000a18af8 EFLAGS: 00000046
RAX: ffffffff93ddd750 RBX: 0000000000000046 RCX: ffffffff817ac0d0
RDX: 0000000000000000 RSI: ffffffff8c0aa4a0 RDI: ffffffff8c5ec300
RBP: ffffc90000a18c50 R08: ffffffff90183af7 R09: 1ffffffff203075e
R10: dffffc0000000000 R11: fffffbfff203075f R12: 1ffff92000143170
R13: ffffffff89c57054 R14: ffffc90000a18bd0 R15: dffffc0000000000
FS:  00007f4b6ef1a6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c330aa3 CR3: 0000000072372000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lockdep_recursion_inc kernel/locking/lockdep.c:462 [inline]
 lock_release+0x1bc/0xa30 kernel/locking/lockdep.c:5869
 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
 _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 advance_sched+0x9b4/0xca0 net/sched/sch_taprio.c:981
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_rdp_cpu_online kernel/rcu/tree.c:4744 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0x74/0x120 kernel/rcu/tree.c:4785
Code: ff df 48 8d 1c dd 90 ea 2c 8e 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 16 dc 7d 00 48 8b 03 48 8d 98 00 f7 03 00 <48> 8d b8 20 f7 03 00 48 89 f8 48 c1 e8 03 42 80 3c 30 00 74 05 e8
RSP: 0018:ffffc900052ae810 EFLAGS: 00000246
RAX: ffff8880b8700000 RBX: ffff8880b873f700 RCX: 0000000080000000
RDX: 0000000000000000 RSI: ffffffff8c5ec2e0 RDI: ffffffff8c5ec2a0
RBP: 00000000000002e0 R08: ffffffff820eb46e R09: 1ffffffff284db10
R10: dffffc0000000000 R11: fffffbfff284db11 R12: 00000000000b86d7
R13: ffffea0002e1b5c0 R14: dffffc0000000000 R15: ffff88801d280000
 rcu_read_lock_held_common kernel/rcu/update.c:113 [inline]
 rcu_read_lock_held+0x1e/0x50 kernel/rcu/update.c:349
 lookup_page_ext mm/page_ext.c:254 [inline]
 page_ext_get+0x192/0x2a0 mm/page_ext.c:526
 __reset_page_owner+0x30/0x430 mm/page_owner.c:290
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_folios+0xe23/0x1890 mm/page_alloc.c:2704
 shrink_folio_list+0x41b1/0x57e0 mm/vmscan.c:1483
 reclaim_folio_list+0x142/0x600 mm/vmscan.c:2143
 reclaim_pages+0x49e/0x5e0 mm/vmscan.c:2180
 madvise_cold_or_pageout_pte_range+0x1ea8/0x2360 mm/madvise.c:558
 walk_pmd_range mm/pagewalk.c:130 [inline]
 walk_pud_range mm/pagewalk.c:226 [inline]
 walk_p4d_range mm/pagewalk.c:264 [inline]
 walk_pgd_range+0xc3d/0x17e0 mm/pagewalk.c:305
 __walk_page_range+0x15f/0x700 mm/pagewalk.c:412
 walk_page_range_mm+0x58f/0x7c0 mm/pagewalk.c:505
 madvise_pageout_page_range mm/madvise.c:617 [inline]
 madvise_pageout mm/madvise.c:644 [inline]
 madvise_vma_behavior mm/madvise.c:1261 [inline]
 madvise_walk_vmas mm/madvise.c:1497 [inline]
 do_madvise+0x391c/0x4d10 mm/madvise.c:1684
 __do_sys_madvise mm/madvise.c:1700 [inline]
 __se_sys_madvise mm/madvise.c:1698 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1698
 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: 0033:0x7f4b6e17ff19
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:00007f4b6ef1a058 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f4b6e346080 RCX: 00007f4b6e17ff19
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007f4b6e1f3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4b6e346080 R15: 00007ffe863863b8
 </TASK>
task:cmp             state:R  running task     stack:22416 pid:16072 tgid:16072 ppid:16046  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 zap_pte_range mm/memory.c:1705 [inline]
 zap_pmd_range mm/memory.c:1753 [inline]
 zap_pud_range mm/memory.c:1782 [inline]
 zap_p4d_range mm/memory.c:1803 [inline]
 unmap_page_range+0x36c3/0x4040 mm/memory.c:1824
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1914
 exit_mmap+0x275/0xc20 mm/mmap.c:1668
 __mmput+0x115/0x3b0 kernel/fork.c:1353
 exit_mm+0x220/0x310 kernel/exit.c:570
 do_exit+0x9b2/0x28e0 kernel/exit.c:925
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7fd8602b7a90
RSP: 002b:00007ffd22322128 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fd8603a8860 RCX: 00007fd8602b7a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00007fd8603a8860 R08: 00007ffd22321fa0 R09: 00007ffd22322080
R10: 00007ffd22321fe0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd8603ac658 R15: 0000000000000001
 </TASK>
rcu: rcu_preempt kthread starved for 10505 jiffies! g64237 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:25976 pid:17    tgid:17    ppid:2      flags:0x00004000
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_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 16058 Comm: syz.2.2621 Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f3/0x2c60 kernel/smp.c:884
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 56 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 01 e5 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 e5 e4
RSP: 0018:ffffc9000446f900 EFLAGS: 00000293
RAX: ffffffff8193790b RBX: 1ffff110170e88b9 RCX: ffff88802c875a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000446fb00 R08: ffffffff819378da R09: 1ffffffff284db10
R10: dffffc0000000000 R11: fffffbfff284db11 R12: dffffc0000000000
R13: ffff8880b87445c8 R14: ffff8880b863f940 R15: 0000000000000001
FS:  0000555593edb500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd8601f9440 CR3: 0000000057b82000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324
 text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 __static_key_slow_dec_cpuslocked+0xc4/0x110 kernel/jump_label.c:315
 __static_key_slow_dec kernel/jump_label.c:321 [inline]
 static_key_slow_dec+0x51/0xa0 kernel/jump_label.c:336
 kvm_destroy_vm virt/kvm/kvm_main.c:1316 [inline]
 kvm_put_kvm+0xd6a/0xf60 virt/kvm/kvm_main.c:1340
 kvm_vm_release+0x43/0x50 virt/kvm/kvm_main.c:1363
 __fput+0x23c/0xa50 fs/file_table.c:450
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4787d7ff19
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:00007ffcce5433e8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000f32f4 RCX: 00007f4787d7ff19
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f4787f47ba0 R08: 0000000000000001 R09: 00007ffcce5436cf
R10: 00007f4787c00000 R11: 0000000000000246 R12: 00000000000f338b
R13: 00007f4787f45fa0 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>