rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=c974/1/0x4000000000000000 softirq=53455/53456 fqs=5
rcu: 	(detected by 1, t=10506 jiffies, g=88097, q=487 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2450 Comm: kworker/u8:8 Not tainted 6.9.0-rc4-syzkaller-00329-g48cf398f15fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: netns cleanup_net
RIP: 0010:kasan_check_range+0x12/0x1a0 mm/kasan/generic.c:188
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 50 01 00 00 48 89 f8 41 54 <44> 0f b6 c2 48 01 f0 55 53 0f 82 c6 00 00 00 48 b8 ff ff ff ff ff
RSP: 0018:ffffc90000007cd8 EFLAGS: 00000002
RAX: ffffc90000007d10 RBX: ffff88806353b2e8 RCX: ffffffff816c538d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc90000007d10
RBP: 1ffff92000000f9e R08: 0000000000000001 R09: ffffed100c6a765d
R10: ffff88806353b2eb R11: 0000000000000004 R12: ffff88806353b2f0
R13: ffff88806353b2f8 R14: ffff88806353b340 R15: ffffffff88ee2910
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff090e31f78 CR3: 000000006666c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1301 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
 do_raw_spin_lock+0x12d/0x2c0 kernel/locking/spinlock_debug.c:116
 spin_lock include/linux/spinlock.h:351 [inline]
 advance_sched+0xd8/0xc60 net/sched/sch_taprio.c:924
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x90/0xb0 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:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x24/0xc0 kernel/rcu/tree.c:700
Code: 90 90 90 90 90 90 f3 0f 1e fa 55 53 65 ff 05 3b a7 8f 7e e8 ae 01 67 09 48 c7 c3 e8 7e 03 00 83 f8 07 89 c5 0f 87 82 00 00 00 <48> 8d 3c ed 40 0b 26 8d 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48
RSP: 0018:ffffc90009b879d0 EFLAGS: 00000297
RAX: 0000000000000000 RBX: 0000000000037ee8 RCX: ffffffff816bdb09
RDX: fffffbfff1f3e613 RSI: ffffffff8b6f56a0 RDI: ffffffff8b6f56e0
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1f3e612
R10: ffffffff8f9f3097 R11: 0000000000000003 R12: ffffffff8d7b0e20
R13: 00000000000712d6 R14: 000000000003d78c R15: 00000000000712d5
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x4cc/0x6c0 kernel/locking/lockdep.c:5765
 rcu_lock_release include/linux/rcupdate.h:339 [inline]
 rcu_read_unlock include/linux/rcupdate.h:814 [inline]
 inet_twsk_purge+0x579/0x8f0 net/ipv4/inet_timewait_sock.c:318
 ops_exit_list+0x128/0x180 net/core/net_namespace.c:175
 cleanup_net+0x5b7/0xbf0 net/core/net_namespace.c:637
 process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3254
 process_scheduled_works kernel/workqueue.c:3335 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: rcu_preempt kthread starved for 10480 jiffies! g88097 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:27664 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6838
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1862
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 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 PID: 12165 Comm: syz-executor.3 Not tainted 6.9.0-rc4-syzkaller-00329-g48cf398f15fc #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+0x4e7/0x1420 kernel/smp.c:855
Code: 0c 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 5b 07 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 f7 0c 00 00 8b 43 08 31
RSP: 0018:ffffc9000366f5f0 EFLAGS: 00000246
RAX: 0000000000040000 RBX: ffff8880b9446860 RCX: ffffc9000abbf000
RDX: 0000000000040000 RSI: ffffffff8181baf5 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffed1017288d0d
R13: 0000000000000001 R14: ffff8880b9446868 R15: ffff8880b953fc00
FS:  00007f59ec6bd6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2de2b000 CR3: 000000006467c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
 __purge_vmap_area_lazy+0x4f5/0xc10 mm/vmalloc.c:2245
 _vm_unmap_aliases+0x29c/0xbd0 mm/vmalloc.c:2843
 change_page_attr_set_clr+0x24c/0x490 arch/x86/mm/pat/set_memory.c:1842
 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1890 [inline]
 set_memory_ro+0x7c/0xb0 arch/x86/mm/pat/set_memory.c:2076
 bpf_prog_lock_ro include/linux/filter.h:895 [inline]
 bpf_prog_select_runtime+0x4fb/0x640 kernel/bpf/core.c:2406
 bpf_prog_load+0xf0f/0x2660 kernel/bpf/syscall.c:2899
 __sys_bpf+0x9b4/0x4b40 kernel/bpf/syscall.c:5660
 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5765 [inline]
 __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5765
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f59eb87dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f59ec6bd0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f59eb9abf80 RCX: 00007f59eb87dea9
RDX: 0000000000000090 RSI: 0000000020000b00 RDI: 0000000000000005
RBP: 00007f59eb8ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f59eb9abf80 R15: 00007fff4ca7b518
 </TASK>
vkms_vblank_simulate: vblank timer overrun