Warning: Permanently added '10.128.1.53' (ED25519) to the list of known hosts.
executing program
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[ 187.491734][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 187.498823][ C0] (detected by 0, t=10502 jiffies, g=5849, q=173 ncpus=2)
[ 187.506030][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294955875-4294945372), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 187.519423][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g5849 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[ 187.530543][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 187.540556][ C0] rcu: RCU grace-period kthread stack dump:
[ 187.546450][ C0] task:rcu_preempt state:R running task stack:28016 pid:16 ppid:2 flags:0x00004000
[ 187.557350][ C0] Call Trace:
[ 187.560637][ C0]
[ 187.563580][ C0] __schedule+0x11d1/0x40e0
[ 187.568121][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 187.574035][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 187.579952][ C0] ? __sched_text_start+0x8/0x8
[ 187.584816][ C0] ? __mod_timer+0x91e/0xd00
[ 187.589536][ C0] schedule+0xb9/0x180
[ 187.593622][ C0] schedule_timeout+0x184/0x2d0
[ 187.598484][ C0] ? console_conditional_schedule+0x40/0x40
[ 187.604388][ C0] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 187.610386][ C0] ? update_process_times+0x1b0/0x1b0
[ 187.615774][ C0] ? prepare_to_swait_event+0x335/0x350
[ 187.621340][ C0] rcu_gp_fqs_loop+0x303/0x1340
[ 187.626221][ C0] ? rcu_gp_kthread+0x3b0/0x3b0
[ 187.631083][ C0] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 187.637081][ C0] ? rcu_gp_init+0x14e0/0x14e0
[ 187.641851][ C0] ? rcu_gp_cleanup+0xb41/0xc90
[ 187.646719][ C0] ? _raw_spin_unlock_irq+0x1f/0x40
[ 187.651924][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 187.657134][ C0] rcu_gp_kthread+0x99/0x3b0
[ 187.661738][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 187.666859][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 187.672759][ C0] ? __kthread_parkme+0x162/0x1c0
[ 187.677801][ C0] kthread+0x29d/0x330
[ 187.681888][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 187.687010][ C0] ? kthread_blkcg+0xd0/0xd0
[ 187.691610][ C0] ret_from_fork+0x1f/0x30
[ 187.696057][ C0]
[ 187.699093][ C0] rcu: Stack dump where RCU GP kthread last ran:
[ 187.705437][ C0] CPU: 0 PID: 4283 Comm: syz-executor301 Not tainted syzkaller #0
[ 187.713258][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 187.723323][ C0] RIP: 0010:lock_acquire+0xde/0x4a0
[ 187.728540][ C0] Code: 0c 0f 83 a2 01 00 00 45 89 f4 41 c1 ee 06 4a 8d 3c f5 e8 de 1f 8e be 08 00 00 00 e8 1c 44 6f 00 4c 0f a3 25 bc a1 bb 0c 73 0d 9d 32 08 00 84 c0 0f 84 2e 02 00 00 48 c7 c0 a4 13 20 8e 48 c1
[ 187.748168][ C0] RSP: 0018:ffffc900042a7a20 EFLAGS: 00000257
[ 187.754248][ C0] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81643d24
[ 187.762228][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1fdee8
[ 187.770210][ C0] RBP: ffffc900042a7b30 R08: ffffffff8e1fdeef R09: 1ffffffff1c3fbdd
[ 187.778189][ C0] R10: dffffc0000000000 R11: fffffbfff1c3fbde R12: 0000000000000000
[ 187.786168][ C0] R13: 1ffff92000854f50 R14: 0000000000000000 R15: dffffc0000000000
[ 187.794154][ C0] FS: 00007fd699d996c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
[ 187.803090][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 187.809685][ C0] CR2: 0000200000000058 CR3: 000000007581c000 CR4: 00000000003506f0
[ 187.817663][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 187.825635][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 187.833631][ C0] Call Trace:
[ 187.836932][ C0]
[ 187.839889][ C0] ? __might_sleep+0xd0/0xd0
[ 187.844495][ C0] ? read_lock_is_recursive+0x10/0x10
[ 187.849883][ C0] ? __lock_acquire+0x7d10/0x7d10
[ 187.854916][ C0] ? lock_chain_count+0x20/0x20
[ 187.859780][ C0] ? posixtimer_rearm+0x131/0x340
[ 187.864817][ C0] ? __might_fault+0xa6/0x120
[ 187.869503][ C0] __might_fault+0xc2/0x120
[ 187.874013][ C0] ? __might_fault+0xa6/0x120
[ 187.878708][ C0] __rseq_handle_notify_resume+0x545/0x11f0
[ 187.884618][ C0] ? __bpf_trace_rseq_ip_fixup+0x40/0x40
[ 187.890265][ C0] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 187.896258][ C0] ? lock_chain_count+0x20/0x20
[ 187.901123][ C0] ? arch_do_signal_or_restart+0x23e/0x1350
[ 187.907033][ C0] arch_do_signal_or_restart+0x275/0x1350
[ 187.912770][ C0] ? __ia32_sys_rt_sigreturn+0x619/0x760
[ 187.918422][ C0] ? load_gs_index+0x130/0x130
[ 187.923197][ C0] ? get_sigframe_size+0x10/0x10
[ 187.928161][ C0] ? exit_to_user_mode_loop+0x3b/0x110
[ 187.933642][ C0] exit_to_user_mode_loop+0x70/0x110
[ 187.938942][ C0] exit_to_user_mode_prepare+0xee/0x180
[ 187.944498][ C0] syscall_exit_to_user_mode+0x16/0x40
[ 187.949964][ C0] do_syscall_64+0x58/0xa0
[ 187.954393][ C0] ? clear_bhb_loop+0x60/0xb0
[ 187.959098][ C0] ? clear_bhb_loop+0x60/0xb0
[ 187.963800][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 187.969713][ C0] RIP: 0033:0x7fd699dba517
[ 187.974147][ C0] 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
[ 187.993757][ C0] RSP: 002b:00007fd699d99178 EFLAGS: 00000246
[ 187.999831][ C0] RAX: 00000000000000ca RBX: 00007fd699e69b28 RCX: 00007fd699dba519
[ 188.007805][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd699e69b28
[ 188.015782][ C0] RBP: 00007fd699e69b20 R08: 00007fd699d99cdc R09: 00007fd699d99cdc
[ 188.023770][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd699e69b2c
[ 188.031761][ C0] R13: 0000000000000000 R14: 00007ffecee7e290 R15: 00007ffecee7e378
[ 188.039860][ C0]