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rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P3824 1-.... } 4746 jiffies s: 1593 root: 0x2/T rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3780 Comm: syz.4.17 Not tainted 6.1.106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:lockdep_hardirqs_on_prepare+0xea/0x7a0 kernel/locking/lockdep.c:4296 Code: 03 0f b6 04 10 84 c0 0f 85 42 05 00 00 83 3d bc f6 88 10 00 0f 85 a8 00 00 00 4c 8d 74 24 40 4c 89 f3 48 c1 eb 03 80 3c 13 00 <74> 12 4c 89 f7 e8 8c e4 77 00 48 ba 00 00 00 00 00 fc ff df 48 c7 RSP: 0018:ffffc900001df900 EFLAGS: 00000046 RAX: 0000000000000004 RBX: 1ffff9200003bf28 RCX: ffffffff91f33103 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8ac00d46 RBP: ffffc900001df9b0 R08: ffffffff9013e040 R09: ffffffff9013e048 R10: ffffffff9013e058 R11: ffffffff9013e050 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc900001df940 R15: 1ffff9200003bf24 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3a739f3394 CR3: 000000001c345000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:lock_is_held_type+0x137/0x180 Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffffc900001dfa78 EFLAGS: 00000206 RAX: 3d8e1ed6e3160200 RBX: 0000000000000003 RCX: ffff888028f39dc0 RDX: ffff888028f39dc0 RSI: ffffffff8b0c13e0 RDI: ffffffff8b5d62c0 RBP: 0000000000000001 R08: ffffffff89269e0e R09: ffffc900001dfd40 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246 R13: ffff888028f39dc0 R14: 00000000ffffffff R15: ffff88807a7b00b0 lock_is_held include/linux/lockdep.h:283 [inline] lockdep_sock_is_held include/net/sock.h:1741 [inline] sock_owned_by_me include/net/sock.h:1835 [inline] tcp_snd_una_update net/ipv4/tcp_input.c:3571 [inline] tcp_ack_update_window net/ipv4/tcp_input.c:3624 [inline] tcp_ack+0x153b/0x6e80 net/ipv4/tcp_input.c:3892 tcp_rcv_established+0xc51/0x1f00 net/ipv4/tcp_input.c:6053 tcp_v4_do_rcv+0x487/0xb00 net/ipv4/tcp_ipv4.c:1678 tcp_v4_rcv+0x29e0/0x3250 net/ipv4/tcp_ipv4.c:2109 ip_protocol_deliver_rcu+0x381/0x740 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x304/0x580 net/ipv4/ip_input.c:233 NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302 dst_input include/net/dst.h:454 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:580 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:631 [inline] ip_sublist_rcv+0xaf9/0xe70 net/ipv4/ip_input.c:639 ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:674 __netif_receive_skb_list_ptype net/core/dev.c:5571 [inline] __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5619 __netif_receive_skb_list net/core/dev.c:5671 [inline] netif_receive_skb_list_internal+0xa0d/0xe20 net/core/dev.c:5762 gro_normal_list include/net/gro.h:433 [inline] napi_complete_done+0x352/0x820 net/core/dev.c:6103 virtqueue_napi_complete drivers/net/virtio_net.c:403 [inline] virtnet_poll+0xc85/0x1470 drivers/net/virtio_net.c:1687 __napi_poll+0xc7/0x470 net/core/dev.c:6537 napi_poll net/core/dev.c:6604 [inline] net_rx_action+0x70f/0xeb0 net/core/dev.c:6718 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:preempt_schedule+0x0/0xe0 kernel/sched/core.c:6744 Code: f7 eb a2 0f 1f 80 00 00 00 00 bf 01 00 00 00 e8 06 5a b0 f6 e8 e1 fd ff ff bf 01 00 00 00 e8 77 58 b0 f6 c3 66 0f 1f 44 00 00 <55> 48 89 e5 41 57 41 56 41 54 53 48 83 e4 e0 48 83 ec 60 65 48 8b RSP: 0018:ffffc90004ea72f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888072c4f720 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 RBP: ffffc90004ea7340 R08: dffffc0000000000 R09: ffffed100e589ee5 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880282725e8 R13: 8000000062038007 R14: 00007f16cc2bd000 R15: dffffc0000000000 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1515 [inline] zap_pmd_range mm/memory.c:1574 [inline] zap_pud_range mm/memory.c:1603 [inline] zap_p4d_range mm/memory.c:1624 [inline] unmap_page_range+0x2190/0x2740 mm/memory.c:1645 unmap_vmas+0x48b/0x640 mm/memory.c:1730 exit_mmap+0x252/0x9f0 mm/mmap.c:3227 __mmput+0x115/0x3c0 kernel/fork.c:1199 exit_mm+0x226/0x300 kernel/exit.c:565 do_exit+0x9f6/0x26a0 kernel/exit.c:858 do_group_exit+0x202/0x2b0 kernel/exit.c:1021 get_signal+0x16f7/0x17d0 kernel/signal.c:2870 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:316 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0033:0x7f16cd779ef9 Code: Unable to access opcode bytes at 0x7f16cd779ecf. RSP: 002b:00007f16ce56b0e8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 00007f16cd915f88 RCX: 00007f16cd779ef9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f16cd915f8c RBP: 00007f16cd915f80 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000000000006 R11: 0000000000000246 R12: 00007f16cd915f8c R13: 0000000000000000 R14: 00007ffc91a55bc0 R15: 00007ffc91a55ca8 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/28 18:02 | linux-6.1.y | ee5e09825b81 | ef3de9e8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in ip_list_rcv |