rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2733 jiffies s: 1653 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3795 Comm: syz.2.17 Not tainted 6.1.102-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline] RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline] RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:206 Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 1f ff 28 03 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc900001dfdc8 EFLAGS: 00000046 RAX: 00000000000000df RBX: ffffffff8cd87a20 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 00000000000000df RDI: 0000000000000838 RBP: 00000000000000df R08: ffffffff817ce29d R09: fffffbfff1d337ae R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b99271c0 R13: dffffc0000000000 R14: 00000000000000df R15: dffffc0000000000 FS: 00007f298982b6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f46ffb05f40 CR3: 0000000073d85000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:394 [inline] lapic_next_event+0x5b/0x70 arch/x86/kernel/apic/apic.c:478 clockevents_program_event+0x1c5/0x310 kernel/time/clockevents.c:334 hrtimer_interrupt+0x546/0x980 kernel/time/hrtimer.c:1825 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:ip6_ignore_linkdown include/net/addrconf.h:419 [inline] RIP: 0010:find_match+0x136/0xc10 net/ipv6/route.c:747 Code: e8 af 3c 25 f8 4d 85 e4 0f 84 8d 09 00 00 49 81 c4 44 06 00 00 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 0f 85 8e 09 00 00 41 8b 1c 24 31 ff 89 de e8 d5 3f 25 f8 85 RSP: 0018:ffffc900001e0020 EFLAGS: 00000a03 RAX: 0000000000000000 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: 0000000000000102 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888058f7b8a8 R08: ffffffff89655ed4 R09: ffffc900001e0350 R10: ffffc900001e0340 R11: dffffc0000000001 R12: ffff888078492644 R13: ffff888058f7b8bf R14: 1ffff1100b1ef717 R15: 1ffff1100b1ef715 __find_rr_leaf+0x271/0x8e0 net/ipv6/route.c:835 find_rr_leaf net/ipv6/route.c:856 [inline] rt6_select net/ipv6/route.c:900 [inline] fib6_table_lookup+0x40f/0xbb0 net/ipv6/route.c:2189 ip6_pol_route+0x207/0x14e0 net/ipv6/route.c:2225 pol_lookup_func include/net/ip6_fib.h:579 [inline] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116 ip6_route_input_lookup net/ipv6/route.c:2294 [inline] ip6_route_input+0x830/0xd90 net/ipv6/route.c:2590 ip6_rcv_finish+0x140/0x230 net/ipv6/ip6_input.c:77 NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302 __netif_receive_skb_one_core net/core/dev.c:5528 [inline] __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5642 process_backlog+0x381/0x760 net/core/dev.c:5970 __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 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__sanitizer_cov_trace_pc+0x41/0x60 kernel/kcov.c:212 Code: ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 <48> 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 RSP: 0018:ffffc900048bf4b8 EFLAGS: 00000246 RAX: ffffffff81cc1805 RBX: 0000000000000000 RCX: ffff88807cdd8000 RDX: ffffc90004fda000 RSI: 000000000001f2fc RDI: ffff888054512b38 RBP: ffffc900048bf870 R08: dffffc0000000000 R09: fffffbfff1d337ae R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888078d56600 R13: 0000000000000b20 R14: ffff88807f6be018 R15: 800000005e8fd007 copy_pte_range mm/memory.c:1099 [inline] copy_pmd_range mm/memory.c:1177 [inline] copy_pud_range mm/memory.c:1214 [inline] copy_p4d_range mm/memory.c:1238 [inline] copy_page_range+0x1c25/0x4660 mm/memory.c:1336 dup_mmap kernel/fork.c:696 [inline] dup_mm kernel/fork.c:1540 [inline] copy_mm+0xf42/0x1990 kernel/fork.c:1589 copy_process+0x19d5/0x4060 kernel/fork.c:2267 kernel_clone+0x222/0x920 kernel/fork.c:2682 __do_sys_clone kernel/fork.c:2823 [inline] __se_sys_clone kernel/fork.c:2807 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2807 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f29889773b9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f298982aff8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f2988b05f80 RCX: 00007f29889773b9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040020000 RBP: 00007f29889e48e6 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2988b05f80 R15: 00007fffbf6852a8