rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (1 GPs behind) idle=fd74/1/0x4000000000000000 softirq=15438/15440 fqs=2
rcu: 	(t=10500 jiffies g=7725 q=318 ncpus=2)
rcu: rcu_preempt kthread starved for 10495 jiffies! g7725 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:27128 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6191 Comm: syz.2.138 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:native_queued_spin_lock_slowpath+0xb7/0x8e0
Code: 00 00 00 0f 1f 44 00 00 4c 8d 74 24 60 49 89 df 49 c1 ef 03 41 bd 01 00 00 00 eb 06 89 44 24 60 f3 90 48 89 df be 04 00 00 00 <e8> c4 1d b2 f6 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0
RSP: 0018:ffffc9000421f7c0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff88801d2bc588 RCX: ffffffff8b71260c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801d2bc588
RBP: ffffc9000421f8b8 R08: ffff88801d2bc58b R09: 1ffff11003a578b1
R10: dffffc0000000000 R11: ffffed1003a578b2 R12: 1ffff92000843f00
R13: 0000000000000001 R14: ffffc9000421f820 R15: 1ffff11003a578b1
FS:  000055558ffd9500(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000004e4000 CR3: 000000002790e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 queued_spin_lock_slowpath+0x43/0x50
 do_raw_spin_lock+0x21f/0x290
 futex_wait_setup+0xa5/0x460
 __futex_wait+0x148/0x3e0
 futex_wait+0x104/0x360
 do_futex+0x333/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98b5b8e9a9
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:00007ffe90236658 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000001077d RCX: 00007f98b5b8e9a9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f98b5db5fac
RBP: 0000000000000032 R08: 7fffffffffffffff R09: 0000000a9023694f
R10: 00007ffe90236750 R11: 0000000000000246 R12: 00007f98b5db5fac
R13: 00007ffe90236750 R14: 00000000000107af R15: 00007ffe90236770
 </TASK>
CPU: 1 UID: 0 PID: 6192 Comm: syz.2.138 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 e2 d0 86 03 66
RSP: 0018:ffffc900001dfa28 EFLAGS: 00000246
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc900001dfb00 R08: ffffc900001dfa87 R09: 1ffff9200003bf50
R10: dffffc0000000000 R11: fffff5200003bf51 R12: ffff88802f6f9701
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881366314f0
FS:  00007f98b6a116c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000029c0 CR3: 000000002790e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_irq_work_raise+0x6d/0x80
 __irq_work_queue_local+0x1d7/0x550
 irq_work_queue+0x99/0x140
 __perf_event_overflow+0x87f/0xe10
 perf_swevent_event+0x4f8/0x5e0
 perf_tp_event+0x4f6/0x1380
 perf_trace_run_bpf_submit+0xee/0x170
 perf_trace_lock_acquire+0x335/0x410
 lock_acquire+0x311/0x360
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 ref_tracker_alloc+0x133/0x460
 dst_init+0xd9/0x450
 dst_alloc+0x12a/0x170
 icmp6_dst_alloc+0x75/0x420
 ndisc_send_skb+0x41f/0x1400
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_release+0x2b5/0x3e0
Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 5b cc 01 11 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90006cefb68 EFLAGS: 00000206
RAX: cc8f1af7b5a39300 RBX: 0000000000000206 RCX: cc8f1af7b5a39300
RDX: 0000000000000000 RSI: ffffffff8db863e2 RDI: ffffffff8be29f80
RBP: ffff8881051cc470 R08: ffff8881051ca717 R09: 1ffff11020a394e2
R10: dffffc0000000000 R11: ffffed1020a394e3 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88801d2bc5a0 R15: ffff8881051cb980
 _raw_spin_unlock+0x16/0x50
 futex_wake+0x44b/0x500
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98b5b8e9a9
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:00007f98b6a110e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f98b5db5fa8 RCX: 00007f98b5b8e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f98b5db5fac
RBP: 00007f98b5db5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f98b5db5fac
R13: 0000000000000000 R14: 00007ffe90236410 R15: 00007ffe902364f8
 </TASK>
sched: DL replenish lagged too much
