Warning: Permanently added '10.128.1.34' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 220.436075][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 220.442857][ C1] rcu: 1-...!: (10500 ticks this GP) idle=6d3c/1/0x4000000000000000 softirq=14065/14065 fqs=0 [ 220.453563][ C1] rcu: (t=10502 jiffies g=7837 q=167 ncpus=2) [ 220.459772][ C1] rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g7837 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 220.472006][ C1] rcu: Possible timer handling issue on cpu=0 timer-softirq=3549 [ 220.479792][ C1] rcu: rcu_preempt kthread starved for 10505 jiffies! g7837 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 220.491057][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 220.501053][ C1] rcu: RCU grace-period kthread stack dump: [ 220.506943][ C1] task:rcu_preempt state:I stack:26688 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 [ 220.518878][ C1] Call Trace: [ 220.522144][ C1] [ 220.525064][ C1] __schedule+0x1b88/0x5240 [ 220.529592][ C1] ? _raw_spin_unlock_irqrestore+0x90/0x140 [ 220.535473][ C1] ? rcu_is_watching+0x15/0xb0 [ 220.540231][ C1] ? schedule+0x163/0x360 [ 220.544554][ C1] ? __pfx___schedule+0x10/0x10 [ 220.549423][ C1] ? schedule+0x90/0x360 [ 220.553652][ C1] ? schedule+0x90/0x360 [ 220.557879][ C1] schedule+0x163/0x360 [ 220.562032][ C1] schedule_timeout+0x15b/0x2b0 [ 220.566889][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 220.572360][ C1] ? __pfx_process_timeout+0x10/0x10 [ 220.577654][ C1] ? prepare_to_swait_event+0x1e5/0x340 [ 220.583197][ C1] ? prepare_to_swait_event+0x308/0x340 [ 220.588750][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 220.593959][ C1] rcu_gp_fqs_loop+0x2e1/0x1340 [ 220.598808][ C1] ? rcu_gp_init+0x1279/0x1690 [ 220.603566][ C1] ? __pfx_rcu_gp_init+0x10/0x10 [ 220.608487][ C1] ? __pfx_rcu_watching_snap_save+0x10/0x10 [ 220.614366][ C1] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 220.619636][ C1] ? _raw_spin_unlock_irqrestore+0xde/0x140 [ 220.625519][ C1] ? finish_swait+0xdb/0x200 [ 220.630109][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 220.635316][ C1] rcu_gp_kthread+0xa7/0x3b0 [ 220.639921][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 220.645114][ C1] ? __kthread_parkme+0x1a8/0x200 [ 220.650139][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 220.655344][ C1] kthread+0x7b7/0x940 [ 220.659426][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 220.664632][ C1] ? __pfx_kthread+0x10/0x10 [ 220.669224][ C1] ? __pfx_kthread+0x10/0x10 [ 220.673851][ C1] ? __pfx_kthread+0x10/0x10 [ 220.678456][ C1] ? __pfx_kthread+0x10/0x10 [ 220.683080][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 220.688288][ C1] ? lockdep_hardirqs_on+0x9d/0x150 [ 220.693483][ C1] ? __pfx_kthread+0x10/0x10 [ 220.698063][ C1] ret_from_fork+0x4b/0x80 [ 220.702466][ C1] ? __pfx_kthread+0x10/0x10 [ 220.707045][ C1] ret_from_fork_asm+0x1a/0x30 [ 220.711796][ C1] [ 220.714805][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 220.721119][ C1] Sending NMI from CPU 1 to CPUs 0: [ 220.726350][ C0] NMI backtrace for cpu 0 [ 220.726378][ C0] CPU: 0 UID: 0 PID: 5992 Comm: syz-executor271 Not tainted 6.15.0-rc2-syzkaller-00577-g8066e388be48 #0 PREEMPT(full) [ 220.726413][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 220.726430][ C0] RIP: 0010:__pv_queued_spin_lock_slowpath+0x785/0xdc0 [ 220.726459][ C0] Code: ff 42 0f b6 04 2b 84 c0 75 6c 66 c7 84 24 b0 00 00 00 00 01 48 8b 44 24 40 42 0f b6 04 28 84 c0 75 77 41 80 3e 00 74 0c f3 90 <41> ff c4 75 d2 e9 a0 00 00 00 4c 89 f7 be 02 00 00 00 e8 44 83 fd [ 220.726471][ C0] RSP: 0018:ffffc9000417f820 EFLAGS: 00000206 [ 220.726486][ C0] RAX: 0000000000000000 RBX: 1ffff9200082ff1a RCX: ffffc9000417f801 [ 220.726497][ C0] RDX: 0000000000000000 RSI: ffffffff8e646c74 RDI: ffffffff8ca1c5c0 [ 220.726507][ C0] RBP: ffffc9000417f958 R08: ffffffff905fdc77 R09: 1ffffffff20bfb8e [ 220.726518][ C0] R10: dffffc0000000000 R11: fffffbfff20bfb8f R12: 00000000ffffa949 [ 220.726529][ C0] R13: dffffc0000000000 R14: ffff888030f61ec0 R15: ffffc9000417f8e0 [ 220.726540][ C0] FS: 00007f69714ce6c0(0000) GS:ffff888124fab000(0000) knlGS:0000000000000000 [ 220.726552][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 220.726562][ C0] CR2: 0000200000000000 CR3: 000000007b852000 CR4: 00000000003526f0 [ 220.726575][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 220.726584][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 220.726593][ C0] Call Trace: [ 220.726602][ C0] [ 220.726615][ C0] ? __pfx___pv_queued_spin_lock_slowpath+0x10/0x10 [ 220.726643][ C0] ? __lock_acquire+0xad5/0xd80 [ 220.726665][ C0] queued_spin_lock_slowpath+0x42/0x50 [ 220.726683][ C0] do_raw_spin_lock+0x276/0x370 [ 220.726703][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 220.726720][ C0] ? lock_sock_nested+0x6a/0x100 [ 220.726743][ C0] lock_sock_nested+0x6a/0x100 [ 220.726765][ C0] ? __pfx_tipc_sendstream+0x10/0x10 [ 220.726793][ C0] tipc_sendstream+0x47/0x70 [ 220.726814][ C0] __sock_sendmsg+0x221/0x270 [ 220.726836][ C0] ____sys_sendmsg+0x523/0x860 [ 220.726857][ C0] ? __pfx_____sys_sendmsg+0x10/0x10 [ 220.726872][ C0] ? __fget_files+0x2a/0x420 [ 220.726892][ C0] ? __fget_files+0x2a/0x420 [ 220.726909][ C0] __sys_sendmsg+0x271/0x360 [ 220.726924][ C0] ? __lock_acquire+0xad5/0xd80 [ 220.726945][ C0] ? __pfx___sys_sendmsg+0x10/0x10 [ 220.726985][ C0] ? do_syscall_64+0xb6/0x210 [ 220.727001][ C0] do_syscall_64+0xf3/0x210 [ 220.727015][ C0] ? clear_bhb_loop+0x45/0xa0 [ 220.727032][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 220.727047][ C0] RIP: 0033:0x7f69715153e9 [ 220.727068][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 [ 220.727080][ C0] RSP: 002b:00007f69714ce218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 220.727095][ C0] RAX: ffffffffffffffda RBX: 000000000000002a RCX: 00007f69715153e9 [ 220.727105][ C0] RDX: 0000000000000000 RSI: 0000200000000500 RDI: 0000000000000004 [ 220.727114][ C0] RBP: 00007f697159f328 R08: 0000000000000000 R09: 0000000000000000 [ 220.727123][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000500 [ 220.727133][ C0] R13: 00007f697159f320 R14: 00007f697159f32c R15: 0000200000000004 [ 220.727151][ C0] [ 220.727382][ C1] CPU: 1 UID: 0 PID: 5993 Comm: syz-executor271 Not tainted 6.15.0-rc2-syzkaller-00577-g8066e388be48 #0 PREEMPT(full) [ 220.727397][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 220.727404][ C1] RIP: 0010:__local_bh_enable_ip+0x170/0x200 [ 220.727425][ C1] Code: 8c e8 04 d9 a8 0a 65 66 8b 05 94 78 e3 11 66 85 c0 75 60 bf 01 00 00 00 e8 fd 2a 0c 00 e8 88 d4 46 00 fb 65 8b 05 70 78 e3 11 <85> c0 75 05 e8 77 71 a6 ff 48 c7 44 24 20 0e 36 e0 45 4b c7 44 25 [ 220.727435][ C1] RSP: 0018:ffffc9000418e3a0 EFLAGS: 00000282 [ 220.727445][ C1] RAX: 0000000000000201 RBX: 1ffff92000831c7c RCX: 0000000000000002 [ 220.727453][ C1] RDX: 0000000000000002 RSI: ffffffff8e646c74 RDI: ffffffff8ca1c5c0 [ 220.727461][ C1] RBP: ffffc9000418e450 R08: ffffffff905fdc77 R09: 1ffffffff20bfb8e [ 220.727470][ C1] R10: dffffc0000000000 R11: fffffbfff20bfb8f R12: 1ffff92000831c78 [ 220.727479][ C1] R13: dffffc0000000000 R14: ffffc9000418e3e0 R15: 0000000000000201 [ 220.727487][ C1] FS: 00007f69714ad6c0(0000) GS:ffff8881250ab000(0000) knlGS:0000000000000000 [ 220.727497][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 220.727506][ C1] CR2: 00007f69714add58 CR3: 000000007b852000 CR4: 00000000003526f0 [ 220.727517][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 220.727523][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 220.727536][ C1] Call Trace: [ 220.727541][ C1] [ 220.727547][ C1] ? tipc_sk_rcv+0x459/0x1d10 [ 220.727561][ C1] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 220.727580][ C1] ? __pfx_tipc_sk_lookup+0x10/0x10 [ 220.727598][ C1] ? tipc_sk_rcv+0x459/0x1d10 [ 220.727612][ C1] _raw_spin_trylock_bh+0x61/0x70 [ 220.727629][ C1] tipc_sk_rcv+0x459/0x1d10 [ 220.727646][ C1] ? is_bpf_text_address+0x26/0x2a0 [ 220.727669][ C1] ? is_bpf_text_address+0x288/0x2a0 [ 220.727684][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 220.727701][ C1] ? __pfx_tipc_sk_rcv+0x10/0x10 [ 220.727720][ C1] ? tipc_loopback_trace+0x48/0x1b0 [ 220.727731][ C1] ? __raw_spin_lock_init+0x45/0x100 [ 220.727742][ C1] tipc_node_xmit+0x1d1/0xf00 [ 220.727749][ C1] ? kasan_save_track+0x3f/0x80 [ 220.727761][ C1] ? kasan_save_free_info+0x40/0x50 [ 220.727770][ C1] ? kmem_cache_free+0x197/0x410 [ 220.727778][ C1] ? tipc_msg_reverse+0x6f2/0x9d0 [ 220.727786][ C1] ? tipc_node_xmit+0x1d1/0xf00 [ 220.727792][ C1] ? tipc_sk_push_backlog+0x513/0x930 [ 220.727803][ C1] ? tipc_sk_proto_rcv+0x9f5/0x19a0 [ 220.727813][ C1] ? tipc_sk_rcv+0x8b2/0x1d10 [ 220.727821][ C1] ? tipc_node_xmit+0x1d1/0xf00 [ 220.727829][ C1] ? __pfx_tipc_node_xmit+0x10/0x10 [ 220.727836][ C1] ? release_sock+0x61/0x1f0 [ 220.727847][ C1] ? sk_setsockopt+0xd10/0x3340 [ 220.727854][ C1] ? do_sock_setsockopt+0x2fe/0x710 [ 220.727862][ C1] ? __x64_sys_setsockopt+0x187/0x210 [ 220.727870][ C1] ? do_syscall_64+0xf3/0x210 [ 220.727878][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 220.727901][ C1] tipc_node_distr_xmit+0x311/0x450 [ 220.727915][ C1] ? __pfx_tipc_node_distr_xmit+0x10/0x10 [ 220.727934][ C1] tipc_sk_rcv+0x15e6/0x1d10 [ 220.727959][ C1] ? __pfx_tipc_sk_rcv+0x10/0x10 [ 220.727978][ C1] ? tipc_loopback_trace+0x48/0x1b0 [ 220.727988][ C1] ? __raw_spin_lock_init+0x45/0x100 [ 220.727999][ C1] tipc_node_xmit+0x1d1/0xf00 [ 220.728011][ C1] ? __pfx_tipc_node_xmit+0x10/0x10 [ 220.728024][ C1] ? __lock_acquire+0xad5/0xd80 [ 220.728046][ C1] tipc_sk_push_backlog+0x513/0x930 [ 220.728061][ C1] tipc_sk_proto_rcv+0x9f5/0x19a0 [ 220.728080][ C1] ? __pfx_tipc_sk_proto_rcv+0x10/0x10 [ 220.728098][ C1] tipc_sk_filter_rcv+0x36d4/0x3970 [ 220.728112][ C1] ? is_bpf_text_address+0x26/0x2a0 [ 220.728125][ C1] ? is_bpf_text_address+0x288/0x2a0 [ 220.728136][ C1] ? is_bpf_text_address+0x26/0x2a0 [ 220.728148][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 220.728158][ C1] ? kernel_text_address+0xa7/0xe0 [ 220.728173][ C1] ? __lock_acquire+0xad5/0xd80 [ 220.728195][ C1] ? __pfx_tipc_sk_filter_rcv+0x10/0x10 [ 220.728208][ C1] ? lockdep_hardirqs_on+0x9d/0x150 [ 220.728231][ C1] tipc_sk_rcv+0x8b2/0x1d10 [ 220.728257][ C1] ? __pfx_tipc_sk_rcv+0x10/0x10 [ 220.728275][ C1] ? tipc_loopback_trace+0x48/0x1b0 [ 220.728285][ C1] ? __raw_spin_lock_init+0x45/0x100 [ 220.728296][ C1] tipc_node_xmit+0x1d1/0xf00 [ 220.728308][ C1] ? __pfx_tipc_node_xmit+0x10/0x10 [ 220.728333][ C1] tipc_node_distr_xmit+0x311/0x450 [ 220.728346][ C1] ? __pfx_tipc_node_distr_xmit+0x10/0x10 [ 220.728365][ C1] tipc_sk_backlog_rcv+0x1a4/0x230 [ 220.728378][ C1] ? __pfx_tipc_sk_backlog_rcv+0x10/0x10 [ 220.728393][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 220.728407][ C1] ? __pfx_tipc_sk_backlog_rcv+0x10/0x10 [ 220.728417][ C1] __release_sock+0x243/0x350 [ 220.728433][ C1] release_sock+0x61/0x1f0 [ 220.728446][ C1] sk_setsockopt+0xd10/0x3340 [ 220.728460][ C1] ? __pfx_sk_setsockopt+0x10/0x10 [ 220.728472][ C1] ? aa_sk_perm+0x96f/0xac0 [ 220.728486][ C1] ? __pfx_aa_sk_perm+0x10/0x10 [ 220.728495][ C1] ? __lock_acquire+0xad5/0xd80 [ 220.728507][ C1] ? aa_sock_opt_perm+0x79/0x120 [ 220.728521][ C1] do_sock_setsockopt+0x2fe/0x710 [ 220.728538][ C1] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 220.728546][ C1] ? __fget_files+0x2a/0x420 [ 220.728554][ C1] ? __fget_files+0x39d/0x420 [ 220.728561][ C1] ? __fget_files+0x2a/0x420 [ 220.728573][ C1] __x64_sys_setsockopt+0x187/0x210 [ 220.728586][ C1] do_syscall_64+0xf3/0x210 [ 220.728594][ C1] ? clear_bhb_loop+0x45/0xa0 [ 220.728605][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 220.728613][ C1] RIP: 0033:0x7f69715153e9 [ 220.728621][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 [ 220.728627][ C1] RSP: 002b:00007f69714ad218 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 220.728635][ C1] RAX: ffffffffffffffda RBX: 00007f69714ad6c0 RCX: 00007f69715153e9 [ 220.728641][ C1] RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 [ 220.728646][ C1] RBP: 00007f697159f338 R08: 0000000000000004 R09: 0000000000000000 [ 220.728651][ C1] R10: 0000200000000540 R11: 0000000000000246 R12: 0000200000000500 [ 220.728657][ C1] R13: 00007f697159f330 R14: 00007f697159f33c R15: 0000200000000004 [ 220.728671][ C1]