rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=e4cc/1/0x4000000000000000 softirq=25629/25642 fqs=1
rcu: 	(detected by 1, t=10506 jiffies, g=21501, q=239 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8153 Comm: syz.0.374 Not tainted 6.12.0-next-20241128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:div64_u64 include/linux/math64.h:69 [inline]
RIP: 0010:taprio_set_budgets+0x1e1/0x370 net/sched/sch_taprio.c:669
Code: 32 31 f8 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 e7 2f 31 f8 48 89 e8 31 d2 48 f7 33 <48> 89 c5 bf 11 00 00 00 4c 89 fe e8 0f 43 c6 f7 49 83 ff 10 0f 87
RSP: 0018:ffffc90000007c10 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8880282292e0 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880282292e0
RBP: 0000000000000000 R08: ffff8880282292e7 R09: 1ffff1100504525c
R10: dffffc0000000000 R11: ffffed100504525d R12: 0000000000000004
R13: ffff8880724c8408 R14: ffff8880724c8400 R15: 0000000000000001
FS:  00007f33926c36c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3ec851 CR3: 0000000011a3e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 advance_sched+0x98d/0xca0 net/sched/sch_taprio.c:977
 __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:obj_cgroup_charge+0x350/0x5d0 mm/memcontrol.c:2905
Code: 44 24 60 42 80 3c 23 00 74 08 4c 89 ff e8 b8 fa f6 ff f6 44 24 61 02 0f 85 ca 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 45 31 f6 <80> 7c 24 0c 00 75 4f 48 8b 5c 24 20 48 89 d8 48 c1 e8 0c 31 d2 89
RSP: 0018:ffffc90004da7b20 EFLAGS: 00000246
RAX: 4481abaeac43ae00 RBX: 1ffff920009b4f70 RCX: ffffffff9a3cb903
RDX: dffffc0000000000 RSI: ffffffff8c0a96a0 RDI: ffffffff8c5f8da0
RBP: ffffc90004da7c20 R08: ffffffff90199eb7 R09: 1ffffffff20333d6
R10: dffffc0000000000 R11: fffffbfff20333d7 R12: dffffc0000000000
R13: 1ffff920009b4f6c R14: 0000000000000000 R15: ffffc90004da7b80
 __memcg_slab_post_alloc_hook+0x1b1/0x7e0 mm/memcontrol.c:2998
 memcg_slab_post_alloc_hook mm/slub.c:2152 [inline]
 slab_post_alloc_hook mm/slub.c:4114 [inline]
 slab_alloc_node mm/slub.c:4153 [inline]
 __kmalloc_cache_noprof+0x29a/0x390 mm/slub.c:4309
 kmalloc_noprof include/linux/slab.h:901 [inline]
 kzalloc_noprof include/linux/slab.h:1037 [inline]
 kvm_create_vm_debugfs virt/kvm/kvm_main.c:1048 [inline]
 kvm_create_vm virt/kvm/kvm_main.c:1193 [inline]
 kvm_dev_ioctl_create_vm virt/kvm/kvm_main.c:5353 [inline]
 kvm_dev_ioctl+0x1f3c/0x2460 virt/kvm/kvm_main.c:5395
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 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: 0033:0x7f3391980849
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:00007f33926c3058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3391b45fa0 RCX: 00007f3391980849
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000006
RBP: 00007f33919f3986 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3391b45fa0 R15: 00007ffde3dfa4e8
 </TASK>
rcu: rcu_preempt kthread starved for 10500 jiffies! g21501 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:26032 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 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: 1 UID: 0 PID: 8154 Comm: syz.0.374 Not tainted 6.12.0-next-20241128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:variable_ffs arch/x86/include/asm/bitops.h:321 [inline]
RIP: 0010:handle_softirqs+0x1ef/0x9b0 kernel/softirq.c:542
Code: 00 00 00 45 0f b7 e4 48 c7 c7 c0 91 09 8c e8 e8 2f 72 0a 65 66 c7 05 46 08 a2 7e 00 00 e8 f9 70 45 00 fb 49 c7 c6 c0 b0 60 8e <b8> ff ff ff ff 41 0f bc c4 41 89 c7 41 ff c7 0f 84 0a 04 00 00 44
RSP: 0018:ffffc90000a18e20 EFLAGS: 00000282
RAX: 8b551be9a144ad00 RBX: ffffc90000a18ee0 RCX: ffffffff817b270a
RDX: dffffc0000000000 RSI: ffffffff8c0a96a0 RDI: ffffffff8c5f8da0
RBP: ffffc90000a18f50 R08: ffffffff942c48b7 R09: 1ffffffff2858916
R10: dffffc0000000000 R11: fffffbfff2858917 R12: 0000000000000100
R13: 0000000000000000 R14: ffffffff8e60b0c0 R15: 1ffff110057d3000
FS:  00007f33926a26c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c34e0aa CR3: 0000000011a3e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 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: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 66 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 11 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 f5 e4
RSP: 0018:ffffc900047df8e0 EFLAGS: 00000246
RAX: ffffffff8193900b RBX: 1ffff110170c8c89 RCX: 0000000000080000
RDX: ffffc9000ddcc000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900047dfae0 R08: ffffffff81938fda R09: 1ffffffff2858916
R10: dffffc0000000000 R11: fffffbfff2858917 R12: dffffc0000000000
R13: ffff8880b8646448 R14: ffff8880b873fac0 R15: 0000000000000000
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:939 [inline]
 flush_tlb_mm_range+0x329/0x5c0 arch/x86/mm/tlb.c:1025
 tlb_flush arch/x86/include/asm/tlb.h:20 [inline]
 tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:465 [inline]
 tlb_flush_mmu+0x1aa/0x680 mm/mmu_gather.c:372
 tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465
 do_mprotect_pkey+0xaf0/0xde0 mm/mprotect.c:848
 __do_sys_mprotect mm/mprotect.c:861 [inline]
 __se_sys_mprotect mm/mprotect.c:858 [inline]
 __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:858
 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: 0033:0x7f3391980849
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:00007f33926a2058 EFLAGS: 00000246 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007f3391b46080 RCX: 00007f3391980849
RDX: 0000000000000001 RSI: 0000000000004000 RDI: 0000000020000000
RBP: 00007f33919f3986 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3391b46080 R15: 00007ffde3dfa4e8
 </TASK>