Warning: Permanently added '10.128.1.12' (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 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 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 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 [ 110.452114][ T33] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2651 jiffies s: 941 root: 0x1/. [ 110.464610][ T33] rcu: blocking rcu_node structures (internal RCU debug): [ 110.471776][ T33] Sending NMI from CPU 1 to CPUs 0: [ 110.477112][ C0] NMI backtrace for cpu 0 [ 110.477135][ C0] CPU: 0 PID: 4471 Comm: syz-executor129 Not tainted syzkaller #0 [ 110.477152][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 110.477165][ C0] RIP: 0010:memset_erms+0xb/0x10 [ 110.477205][ C0] Code: 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 01 01 [ 110.477222][ C0] RSP: 0000:ffffc90003ee71f8 EFLAGS: 00000002 [ 110.477237][ C0] RAX: 0000000000000000 RBX: 1ffff920007dce48 RCX: 0000000000000000 [ 110.477248][ C0] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff8880b8e3b9c0 [ 110.477259][ C0] RBP: ffffc90003ee7300 R08: dffffc0000000000 R09: ffff8880b8e3b9b0 [ 110.477271][ C0] R10: ffffed10171c7738 R11: 1ffff110171c7736 R12: 0000000000000046 [ 110.477283][ C0] R13: dffffc0000000000 R14: ffff8880b8e3b980 R15: 1ffff110171c773a [ 110.477296][ C0] FS: 000055557611d380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 110.477311][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.477323][ C0] CR2: 00007fad672e1ce8 CR3: 000000007b6c0000 CR4: 00000000003506f0 [ 110.477338][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 110.477347][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 110.477357][ C0] Call Trace: [ 110.477363][ C0] [ 110.477369][ C0] rcu_read_unlock_special+0x34f/0x500 [ 110.477391][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 110.477408][ C0] ? __perf_cgroup_move+0x150/0x150 [ 110.477430][ C0] ? perf_callchain+0x190/0x190 [ 110.477452][ C0] ? perf_event_output_forward+0x96/0x2a0 [ 110.477476][ C0] __rcu_read_unlock+0x78/0xd0 [ 110.477492][ C0] perf_event_output_forward+0x237/0x2a0 [ 110.477515][ C0] ? perf_event_output_forward+0x96/0x2a0 [ 110.477544][ C0] ? perf_get_page_size+0x420/0x420 [ 110.477568][ C0] ? tracing_gen_ctx_irq_test+0xc9/0x150 [ 110.477592][ C0] ? __perf_event_account_interrupt+0x187/0x280 [ 110.477617][ C0] __perf_event_overflow+0x448/0x610 [ 110.477645][ C0] perf_tp_event+0x335/0xb60 [ 110.477668][ C0] ? __lock_acquire+0x13c0/0x7c50 [ 110.477692][ C0] ? perf_trace_run_bpf_submit+0x1c0/0x1c0 [ 110.477717][ C0] ? perf_tp_event+0xa4a/0xb60 [ 110.477762][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0 [ 110.477790][ C0] perf_trace_preemptirq_template+0x287/0x330 [ 110.477813][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 110.477833][ C0] ? trace_event_raw_event_preemptirq_template+0x1d0/0x1d0 [ 110.477855][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 110.477879][ C0] ? lock_chain_count+0x20/0x20 [ 110.477903][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 110.477920][ C0] trace_irq_enable_rcuidle+0xd3/0x140 [ 110.477943][ C0] trace_hardirqs_on+0x24/0x40 [ 110.477963][ C0] asm_sysvec_irq_work+0x16/0x20 [ 110.477980][ C0] RIP: 0010:rcu_read_unlock_special+0x84/0x500 [ 110.477997][ C0] Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 0d 93 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b [ 110.478010][ C0] RSP: 0000:ffffc90003ee7960 EFLAGS: 00000206 [ 110.478023][ C0] RAX: 0773974ddb68d400 RBX: 1ffff920007dcf34 RCX: 0773974ddb68d400 [ 110.478036][ C0] RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: ffffffff8adef3a0 [ 110.478048][ C0] RBP: ffffc90003ee7a58 R08: dffffc0000000000 R09: fffffbfff215c449 [ 110.478061][ C0] R10: fffffbfff215c449 R11: 1ffffffff215c448 R12: 0000000000000246 [ 110.478072][ C0] R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001 [ 110.478094][ C0] ? lock_downgrade+0x7b0/0x820 [ 110.478117][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 110.478134][ C0] ? page_ext_get+0x1e/0x2a0 [ 110.478156][ C0] ? page_ext_get+0x1de/0x2a0 [ 110.478178][ C0] __rcu_read_unlock+0x78/0xd0 [ 110.478194][ C0] page_ext_put+0x91/0xb0 [ 110.478214][ C0] ptep_clear_flush+0x15b/0x160 [ 110.478241][ C0] wp_page_copy+0xa4e/0x1640 [ 110.478257][ C0] ? do_wp_page+0xaf4/0x1680 [ 110.478290][ C0] ? fault_dirty_shared_page+0x3c0/0x3c0 [ 110.478316][ C0] handle_mm_fault+0x1ca6/0x3e60 [ 110.478341][ C0] ? mt_find+0x145/0x810 [ 110.478365][ C0] ? numa_migrate_prep+0x250/0x250 [ 110.478395][ C0] ? lock_chain_count+0x20/0x20 [ 110.478419][ C0] ? lock_mm_and_find_vma+0xae/0x2f0 [ 110.478446][ C0] do_user_addr_fault+0x51f/0xb10 [ 110.478475][ C0] exc_page_fault+0x60/0x100 [ 110.478498][ C0] ? clear_bhb_loop+0x60/0xb0 [ 110.478517][ C0] asm_exc_page_fault+0x22/0x30 [ 110.478540][ C0] RIP: 0033:0x7fad6723dfe0 [ 110.478559][ C0] Code: 41 54 55 48 89 f5 53 89 fb 48 83 ec 18 48 83 3d 0d 10 0a 00 00 89 54 24 0c 74 08 84 c9 0f 85 09 02 00 00 31 c0 ba 01 00 00 00 0f b1 15 00 3d 0a 00 0f 85 0f 02 00 00 4c 8d 25 f3 3c 0a 00 4c [ 110.478572][ C0] RSP: 002b:00007ffcf8d8f900 EFLAGS: 00010246 [ 110.478585][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 110.478594][ C0] RDX: 0000000000000001 RSI: 00007fad672df110 RDI: 0000000000000000 [ 110.478605][ C0] RBP: 00007fad672df110 R08: 00000000000000a0 R09: 00000000000000a0 [ 110.478615][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 110.478625][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 110.478643][ C0] [ 110.478649][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.541 msecs