Warning: Permanently added '10.128.0.72' (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 [ 74.319255][ T4341] sched: RT throttling activated [ 179.412362][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 179.419421][ C1] (detected by 1, t=10502 jiffies, g=7757, q=3 ncpus=2) [ 179.426474][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294955091-4294944588), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 179.439875][ C1] rcu: rcu_preempt kthread starved for 10504 jiffies! g7757 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 179.451191][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 179.461189][ C1] rcu: RCU grace-period kthread stack dump: [ 179.467116][ C1] task:rcu_preempt state:I stack:26864 pid:16 ppid:2 flags:0x00004000 [ 179.476403][ C1] Call Trace: [ 179.479739][ C1] [ 179.482702][ C1] __schedule+0x11d1/0x40e0 [ 179.487303][ C1] ? alloc_object+0x640/0x640 [ 179.492024][ C1] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 179.498050][ C1] ? __sched_text_start+0x8/0x8 [ 179.502949][ C1] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 179.509006][ C1] ? lock_chain_count+0x20/0x20 [ 179.513906][ C1] ? preempt_schedule+0xbc/0xd0 [ 179.518804][ C1] preempt_schedule_common+0x82/0xd0 [ 179.524144][ C1] preempt_schedule+0xbc/0xd0 [ 179.528875][ C1] ? schedule_preempt_disabled+0x20/0x20 [ 179.534556][ C1] ? asm_sysvec_reschedule_ipi+0x16/0x20 [ 179.540235][ C1] preempt_schedule_thunk+0x16/0x18 [ 179.545550][ C1] _raw_spin_unlock_irqrestore+0x10d/0x120 [ 179.551399][ C1] ? _raw_spin_unlock+0x40/0x40 [ 179.556277][ C1] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 179.562293][ C1] ? update_process_times+0x1b0/0x1b0 [ 179.567701][ C1] prepare_to_swait_event+0x335/0x350 [ 179.573122][ C1] rcu_gp_fqs_loop+0x2ce/0x1340 [ 179.578018][ C1] ? rcu_gp_kthread+0x3b0/0x3b0 [ 179.582910][ C1] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 179.588942][ C1] ? rcu_gp_init+0x14e0/0x14e0 [ 179.593749][ C1] ? rcu_gp_cleanup+0xb41/0xc90 [ 179.598640][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 179.603890][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 179.609187][ C1] rcu_gp_kthread+0x99/0x3b0 [ 179.613839][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 179.619001][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 179.624939][ C1] ? __kthread_parkme+0x162/0x1c0 [ 179.630014][ C1] kthread+0x29d/0x330 [ 179.634113][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 179.639256][ C1] ? kthread_blkcg+0xd0/0xd0 [ 179.643908][ C1] ret_from_fork+0x1f/0x30 [ 179.648378][ C1] [ 179.651429][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 179.657797][ C1] CPU: 1 PID: 4346 Comm: syz-executor113 Not tainted syzkaller #0 [ 179.665624][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 179.675719][ C1] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 179.681573][ C1] Code: 00 00 00 66 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 1e 21 2c f7 48 89 df e8 66 e9 2c f7 e8 41 40 50 f7 fb bf 01 00 00 00 b6 4d 20 f7 65 8b 05 b7 bf c9 75 85 c0 74 02 5b c3 e8 04 d4 c7 [ 179.701214][ C1] RSP: 0018:ffffc90003dd7b98 EFLAGS: 00000282 [ 179.707320][ C1] RAX: 4f57d81448600d00 RBX: ffff88801a24dc80 RCX: 4f57d81448600d00 [ 179.715332][ C1] RDX: dffffc0000000000 RSI: ffffffff8a8c19a0 RDI: 0000000000000001 [ 179.723432][ C1] RBP: ffff88801a24e118 R08: ffff88801a24dc83 R09: 1ffff11003449b90 [ 179.731451][ C1] R10: dffffc0000000000 R11: ffffed1003449b91 R12: 1ffff11003449c23 [ 179.739487][ C1] R13: 0000000000000021 R14: dffffc0000000000 R15: 0000000000000000 [ 179.747504][ C1] FS: 00007fda572c56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 179.756489][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 179.763105][ C1] CR2: 00005555813fe328 CR3: 000000007783f000 CR4: 00000000003506e0 [ 179.771113][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 179.779142][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 179.787145][ C1] Call Trace: [ 179.790456][ C1] [ 179.793415][ C1] get_signal+0x1163/0x1350 [ 179.798001][ C1] arch_do_signal_or_restart+0xc4/0x1350 [ 179.803692][ C1] ? __ia32_sys_rt_sigreturn+0x619/0x760 [ 179.809365][ C1] ? load_gs_index+0x130/0x130 [ 179.814187][ C1] ? get_sigframe_size+0x10/0x10 [ 179.819187][ C1] ? exit_to_user_mode_loop+0x3b/0x110 [ 179.824696][ C1] exit_to_user_mode_loop+0x70/0x110 [ 179.830024][ C1] exit_to_user_mode_prepare+0xee/0x180 [ 179.835613][ C1] syscall_exit_to_user_mode+0x16/0x40 [ 179.841110][ C1] do_syscall_64+0x58/0xa0 [ 179.845555][ C1] ? clear_bhb_loop+0x60/0xb0 [ 179.850276][ C1] ? clear_bhb_loop+0x60/0xb0 [ 179.855015][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 179.860947][ C1] RIP: 0033:0x7fda572e6d87 [ 179.865426][ C1] Code: 00 85 c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 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 d0 ff ff ff f7 d8 64 89 [ 179.885083][ C1] RSP: 002b:00007fda572c5178 EFLAGS: 00000246 [ 179.891183][ C1] RAX: 00000000000000ca RBX: 00007fda57397b28 RCX: 00007fda572e6d89 [ 179.899183][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fda57397b28 [ 179.907181][ C1] RBP: 00007fda57397b20 R08: 00007fda572c5cdc R09: 00007fda572c5cdc [ 179.915179][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fda57397b2c [ 179.923284][ C1] R13: 0000000000000016 R14: 00007ffc85243290 R15: 00007ffc85243378 [ 179.931306][ C1]