rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10500 ticks this GP) idle=0cfc/1/0x4000000000000000 softirq=15849/15849 fqs=0
rcu: 	(t=10500 jiffies g=16125 q=62 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g16125 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=6137
rcu: rcu_preempt kthread starved for 10500 jiffies! g16125 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26536 pid:15    tgid:15    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x1a0b/0x4be0 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/0x1360 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
 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:244
 </TASK>
CPU: 0 PID: 10191 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
RIP: 0010:kvm_wait+0x250/0x2c0 arch/x86/kernel/kvm.c:1060
Code: 3b 45 0f b6 f6 44 89 ff 44 89 f6 e8 aa 70 53 00 e8 f5 ae 5a 00 45 38 f7 75 15 66 90 e8 19 70 53 00 0f 00 2d a2 76 27 0a fb f4 <e9> 50 fe ff ff e8 06 70 53 00 fb e9 45 fe ff ff 89 d9 80 e1 07 38
RSP: 0018:ffffc9000b1677e0 EFLAGS: 000002d3
RAX: ffffffff814097d7 RBX: ffff888016e88880 RCX: ffff88807eb33c00
RDX: 0000000000000000 RSI: ffffffff8b6a9f00 RDI: ffffffff8bbad040
RBP: ffffc9000b1678b0 R08: ffffffff9274a507 R09: 1ffffffff24e94a0
R10: dffffc0000000000 R11: fffffbfff24e94a1 R12: 1ffff9200162cf00
R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000003
FS:  00007fc3223496c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc322349d58 CR3: 0000000019ec8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 pv_wait arch/x86/include/asm/paravirt.h:596 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x6ff/0xc60 kernel/locking/qspinlock.c:511
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x29c/0x3b0 kernel/locking/spinlock_debug.c:116
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x6a/0x100 net/core/sock.c:3538
 lock_sock include/net/sock.h:1671 [inline]
 tipc_sendstream+0x47/0x70 net/tipc/socket.c:1549
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x88/0x170 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fc32167dda9
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:00007fc3223490c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc3217ac050 RCX: 00007fc32167dda9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 00007fc3216ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc3217ac050 R15: 00007ffcf118a338
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 10190 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:rhashtable_lookup include/linux/rhashtable.h:646 [inline]
RIP: 0010:tipc_sk_lookup+0x3c4/0x940 net/tipc/socket.c:3003
Code: 4c 89 f8 48 c1 e8 03 48 89 44 24 50 42 0f b6 04 28 84 c0 0f 85 3a 01 00 00 41 0f b7 07 48 89 44 24 28 48 8b 54 24 10 48 89 d0 <48> c1 e8 03 42 0f b6 04 28 84 c0 4c 89 eb 0f 85 32 01 00 00 44 0f
RSP: 0018:ffffc9000b086580 EFLAGS: 00000246
RAX: ffff88801fe6914c RBX: 0000000000000001 RCX: ffff88807abc1e00
RDX: ffff88801fe6914c RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000b086670 R08: ffffffff8ac00a3d R09: 1ffffffff24e9480
R10: dffffc0000000000 R11: fffffbfff24e9481 R12: ffff888016e88c48
R13: dffffc0000000000 R14: ffff88801fe6914a R15: ffff88801fe6914e
FS:  00007fc32236a6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc3217ad988 CR3: 0000000019ec8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 tipc_sk_rcv+0x434/0x1d10 net/tipc/socket.c:2494
 tipc_node_xmit+0x1e1/0x1010 net/tipc/node.c:1701
 tipc_node_xmit_skb net/tipc/node.c:1766 [inline]
 tipc_node_distr_xmit+0x30d/0x450 net/tipc/node.c:1781
 tipc_sk_rcv+0x15e4/0x1d10 net/tipc/socket.c:2503
 tipc_node_xmit+0x1e1/0x1010 net/tipc/node.c:1701
 tipc_sk_push_backlog net/tipc/socket.c:1316 [inline]
 tipc_sk_filter_connect net/tipc/socket.c:2257 [inline]
 tipc_sk_filter_rcv+0x1c87/0x3940 net/tipc/socket.c:2366
 tipc_sk_enqueue net/tipc/socket.c:2447 [inline]
 tipc_sk_rcv+0x8b3/0x1d10 net/tipc/socket.c:2499
 tipc_node_xmit+0x1e1/0x1010 net/tipc/node.c:1701
 tipc_node_xmit_skb net/tipc/node.c:1766 [inline]
 tipc_node_distr_xmit+0x30d/0x450 net/tipc/node.c:1781
 tipc_sk_backlog_rcv+0x1a2/0x230 net/tipc/socket.c:2414
 __release_sock net/core/sock.c:2984 [inline]
 release_sock+0xe3/0x2d0 net/core/sock.c:3550
 sk_setsockopt+0xb19/0x3380
 do_sock_setsockopt+0x2fb/0x720 net/socket.c:2307
 __sys_setsockopt net/socket.c:2334 [inline]
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt+0x13b/0x1e0 net/socket.c:2340
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x88/0x170 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fc32167dda9
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:00007fc32236a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fc3217abf80 RCX: 00007fc32167dda9
RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003
RBP: 00007fc3216ca47a R08: 0000000000000004 R09: 0000000000000000
R10: 0000000020000540 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc3217abf80 R15: 00007ffcf118a338
 </TASK>