rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=b31c/1/0x4000000000000000 softirq=51174/51175 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P15794/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=74081, q=130 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 15802 Comm: syz-executor.1 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:raw_atomic_try_cmpxchg_acquire include/linux/atomic/atomic-arch-fallback.h:2170 [inline]
RIP: 0010:atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1302 [inline]
RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
RIP: 0010:do_raw_spin_lock+0x16f/0x370 kernel/locking/spinlock_debug.c:116
Code: be 04 00 00 00 e8 91 0c 87 00 41 0f b6 44 1d 00 84 c0 48 89 da 0f 85 8d 01 00 00 8b 44 24 60 b9 01 00 00 00 f0 41 0f b1 0c 24 <0f> 85 df 00 00 00 65 8b 1d 50 df 8f 7e 41 0f b6 04 17 84 c0 0f 85
RSP: 0018:ffffc90000a18ba0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc90000a18c00
RBP: ffffc90000a18c80 R08: 0000000000000003 R09: fffff52000143180
R10: dffffc0000000000 R11: fffff52000143180 R12: ffff88807a53b2e8
R13: 1ffff92000143180 R14: ffffc90000a18c00 R15: 1ffff1100f4a765e
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffccee86c78 CR3: 000000006f546000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 spin_lock include/linux/spinlock.h:351 [inline]
 advance_sched+0xab/0xca0 net/sched/sch_taprio.c:924
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:obj_cgroup_put include/linux/memcontrol.h:838 [inline]
RIP: 0010:refill_obj_stock+0x40e/0x6c0 mm/memcontrol.c:3509
Code: 60 42 80 3c 2b 00 74 08 4c 89 ff e8 9c fe f7 ff f6 44 24 61 02 0f 85 bc 00 00 00 41 f7 c4 00 02 00 00 74 01 fb 48 8b 7c 24 18 <48> 85 ff 74 05 e8 98 b4 00 00 45 85 f6 74 4f 48 8b 7c 24 08 e8 b9
RSP: 0018:ffffc9002622f560 EFLAGS: 00000206
RAX: 3956b0e641f22000 RBX: 1ffff92004c45eb8 RCX: ffffffff8173045a
RDX: dffffc0000000000 RSI: ffffffff8bcad7c0 RDI: 0000000000000000
RBP: ffffc9002622f648 R08: ffffffff92f6c5d7 R09: 1ffffffff25ed8ba
R10: dffffc0000000000 R11: fffffbfff25ed8bb R12: 0000000000000246
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9002622f5c0
 obj_cgroup_uncharge mm/memcontrol.c:3561 [inline]
 __memcg_slab_free_hook+0x1df/0x310 mm/memcontrol.c:3648
 memcg_slab_free_hook mm/slub.c:2129 [inline]
 slab_free mm/slub.c:4390 [inline]
 kmem_cache_free+0x1cf/0x340 mm/slub.c:4468
 anon_vma_chain_free mm/rmap.c:147 [inline]
 unlink_anon_vmas+0x5a0/0x5f0 mm/rmap.c:448
 free_pgtables+0x4ca/0x730 mm/memory.c:402
 exit_mmap+0x447/0xc80 mm/mmap.c:3323
 __mmput+0x115/0x3c0 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:569
 do_exit+0x99e/0x27e0 kernel/exit.c:865
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 get_signal+0x16a1/0x1740 kernel/signal.c:2911
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7f34d6e7de69
Code: Unable to access opcode bytes at 0x7f34d6e7de3f.
RSP: 002b:00007f34d7ca1178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f34d6fabf88 RCX: 00007f34d6e7de69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f34d6fabf88
RBP: 00007f34d6fabf80 R08: 00007f34d7ca16c0 R09: 00007f34d7ca16c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f34d6fabf8c
R13: 000000000000000b R14: 00007ffde9810bf0 R15: 00007ffde9810cd8
 </TASK>
task:syz-executor.2  state:R  running task     stack:23728 pid:15794 tgid:15790 ppid:5098   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6925
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6949
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.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:1681 [inline]
 zap_pmd_range mm/memory.c:1729 [inline]
 zap_pud_range mm/memory.c:1758 [inline]
 zap_p4d_range mm/memory.c:1779 [inline]
 unmap_page_range+0x484b/0x5380 mm/memory.c:1800
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1890
 exit_mmap+0x264/0xc80 mm/mmap.c:3312
 __mmput+0x115/0x3c0 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:569
 do_exit+0x99e/0x27e0 kernel/exit.c:865
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 get_signal+0x16a1/0x1740 kernel/signal.c:2911
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7f3585e7de69
RSP: 002b:00007f3586cb4178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f3585fabf88 RCX: 00007f3585e7de69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f3585fabf88
RBP: 00007f3585fabf80 R08: 00007f3586cb46c0 R09: 00007f3586cb46c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3585fabf8c
R13: 000000000000000b R14: 00007fffe9fbe3c0 R15: 00007fffe9fbe4a8
 </TASK>
rcu: rcu_preempt kthread starved for 10502 jiffies! g74081 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:26320 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:2030
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2232
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 15804 Comm: syz-executor.0 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1894/0x2a00 kernel/smp.c:855
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 65 da 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 10 d6 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 f4 d5
RSP: 0018:ffffc90026107920 EFLAGS: 00000293
RAX: ffffffff818a4f0c RBX: 1ffff110172a8861 RCX: ffff888026620000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90026107b20 R08: ffffffff818a4edb R09: 1ffffffff25ed8b4
R10: dffffc0000000000 R11: fffffbfff25ed8b5 R12: dffffc0000000000
R13: ffff8880b9544308 R14: ffff8880b943f740 R15: 0000000000000001
FS:  00005555637be480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc70c2f2d2b CR3: 000000001ea86000 CR4: 00000000003506f0
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:1023
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2296
 text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2494
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 __static_key_slow_dec_cpuslocked+0x10b/0x170 kernel/jump_label.c:276
 __static_key_slow_dec kernel/jump_label.c:283 [inline]
 static_key_slow_dec+0x51/0xa0 kernel/jump_label.c:298
 __cgroup_bpf_detach+0x9e0/0xa50 kernel/bpf/cgroup.c:1004
 bpf_cgroup_link_release+0x9d/0x260 kernel/bpf/cgroup.c:1201
 bpf_link_free+0x10e/0x2d0 kernel/bpf/syscall.c:3052
 bpf_link_put_direct kernel/bpf/syscall.c:3093 [inline]
 bpf_link_release+0x7b/0x90 kernel/bpf/syscall.c:3100
 __fput+0x406/0x8b0 fs/file_table.c:422
 __do_sys_close fs/open.c:1556 [inline]
 __se_sys_close fs/open.c:1541 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1541
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7fc70c27cd5a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007ffeff67db50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc70c27cd5a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 0000000000000226 R08: 0000001b31e20000 R09: 000000000000002c
R10: 0000000081363c62 R11: 0000000000000293 R12: 00007fc70be02f68
R13: ffffffffffffffff R14: 00007fc70be00000 R15: 000000000006a7c2
 </TASK>