rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=4a0c/1/0x4000000000000002 softirq=65734/65734 fqs=1
rcu: 	(detected by 0, t=10506 jiffies, g=55573, q=503 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:_static_cpu_has arch/x86/include/asm/cpufeature.h:101 [inline]
RIP: 0010:addr_has_metadata mm/kasan/kasan.h:334 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:177 [inline]
RIP: 0010:kasan_check_range+0x32/0x1b0 mm/kasan/generic.c:189
Code: 84 64 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 0f 82 d7 00 00 00 eb 0f cc cc cc 48 b8 00 00 00 00 00 00 00 ff eb 0a <48> b8 00 00 00 00 00 80 ff ff 48 39 c7 0f 82 b3 00 00 00 4c 8d 54
RSP: 0018:ffffc90000a08d48 EFLAGS: 00000096
RAX: ffff88805d8a9160 RBX: ffff88805d8a9000 RCX: ffffffff895fdcc3
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88805d8a9158
RBP: ffff8880281c0000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 185d9be408000000
R13: 185d9be408000000 R14: 0000000000000002 R15: ffff88805bda9410
FS:  0000000000000000(0000) GS:ffff888124818000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2afda0fe9c CR3: 0000000046e86000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:71 [inline]
 __netif_schedule+0x23/0x2f0 net/core/dev.c:3379
 advance_sched+0x6c1/0xc80 net/sched/sch_taprio.c:986
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x1ff/0xad0 kernel/time/hrtimer.c:1825
 hrtimer_interrupt+0x397/0x8e0 kernel/time/hrtimer.c:1887
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
 __sysvec_apic_timer_interrupt+0x108/0x3f0 arch/x86/kernel/apic/apic.c:1056
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline]
RIP: 0010:tif_test_bit include/linux/thread_info.h:192 [inline]
RIP: 0010:tif_need_resched include/linux/thread_info.h:208 [inline]
RIP: 0010:need_resched include/linux/sched.h:2172 [inline]
RIP: 0010:schedule_idle+0x5c/0x90 kernel/sched/core.c:6910
Code: 85 c0 75 3a 65 48 8b 2d da 39 47 08 48 b8 00 00 00 00 00 fc ff df 48 89 eb 48 c1 eb 03 48 01 c3 bf ff ff ff ff e8 84 9a ff ff <80> 3b 00 75 1c 48 8b 45 00 a8 08 75 e9 5b 5d c3 cc cc cc cc 90 0f
RSP: 0018:ffffc90000197df8 EFLAGS: 00000296
RAX: 0000000000000000 RBX: ffffed1003c5c488 RCX: ffffffff81890db1
RDX: 0000000000000000 RSI: fffff52000032fa0 RDI: ffffffff8df3eda8
RBP: ffff88801e2e2440 R08: 0000000000000000 R09: fffffbfff2152e6a
R10: ffffffff90a97357 R11: 0000000000000001 R12: 0000000000000001
R13: ffff88801e2e2440 R14: ffffffff90a97350 R15: 0000000000000000
 do_idle+0x2b6/0x510 kernel/sched/idle.c:353
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423
 start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:315
 common_startup_64+0x13e/0x148
 </TASK>
rcu: rcu_preempt kthread starved for 10500 jiffies! g55573 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:27784 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5401 [inline]
 __schedule+0x116a/0x5de0 kernel/sched/core.c:6790
 __schedule_loop kernel/sched/core.c:6868 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6883
 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1ea/0xb00 kernel/rcu/tree.c:2054
 rcu_gp_kthread+0x270/0x380 kernel/rcu/tree.c:2256
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 13442 Comm: syz.1.1923 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_single+0x1f4/0x6b0 kernel/smp.c:679
Code: 00 00 00 66 44 89 ac 24 ce 00 00 00 48 89 de e8 82 fa ff ff 41 89 c5 0f 1f 44 00 00 e8 65 09 0c 00 eb 07 e8 5e 09 0c 00 f3 90 <8b> 9c 24 c8 00 00 00 31 ff 83 e3 01 89 de e8 89 04 0c 00 85 db 75
RSP: 0018:ffffc9000c6e7b40 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81afdd67
RDX: ffff88803385c880 RSI: ffffffff81afdd52 RDI: 0000000000000005
RBP: ffffc9000c6e7c90 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 1ffff920018dcf70
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  000055555ec48500(0000) GS:ffff888124718000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32effff8 CR3: 0000000046e86000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000097 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_barrier kernel/rcu/tree.c:3838 [inline]
 rcu_barrier+0x28d/0x6e0 kernel/rcu/tree.c:3775
 kvm_mmu_uninit_vm+0x5b/0x60 arch/x86/kvm/mmu/mmu.c:6714
 kvm_arch_destroy_vm+0x207/0x2f0 arch/x86/kvm/x86.c:12965
 kvm_destroy_vm virt/kvm/kvm_main.c:1308 [inline]
 kvm_put_kvm+0x4f2/0xb40 virt/kvm/kvm_main.c:1344
 kvm_vm_release+0x3c/0x50 virt/kvm/kvm_main.c:1367
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5fd878e929
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:00007fff06a142b8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000092f66 RCX: 00007f5fd878e929
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f5fd89b7ba0 R08: 0000000000000001 R09: 0000000d06a145af
R10: 00007f5fd8600000 R11: 0000000000000246 R12: 00007f5fd89b5fac
R13: 00007f5fd89b5fa0 R14: ffffffffffffffff R15: 00007fff06a143d0
 </TASK>
vkms_vblank_simulate: vblank timer overrun