rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 3556 jiffies s: 2173 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4402 Comm: syz.2.21 Not tainted 6.1.127-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 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 9f 9f 34 03 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0000:ffffc90000007650 EFLAGS: 00000046 RAX: 0000000000000091 RBX: ffffffff8cda6b30 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 0000000000000091 RDI: 0000000000000838 RBP: 0000000000000091 R08: ffffffff817ce0dd R09: fffffbfff1d364e6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b8e271c0 R13: dffffc0000000000 R14: 0000000000000091 R15: dffffc0000000000 FS: 00007f3ed6d066c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d7feff8 CR3: 0000000024dce000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 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:1828 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x158/0x5b0 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:rcu_read_unlock_special+0xd/0x540 kernel/rcu/tree_plugin.h:627 Code: c1 0f 8c 77 ff ff ff 4c 89 ff e8 6e d9 6d 00 e9 6a ff ff ff 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 <48> 83 e4 e0 48 81 ec a0 00 00 00 65 48 8b 04 25 28 00 00 00 48 89 RSP: 0000:ffffc900000078b0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 1ffff11004ad543f RCX: ffff8880256a9dc0 RDX: 0000000000000100 RSI: ffffffff8b5e67a0 RDI: ffff8880256a9dc0 RBP: ffffc900000078d8 R08: ffffffff896cba0d R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8880256aa1fc R14: ffff8880256a9dc0 R15: ffff8880256aa200 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] ipv6_get_ifaddr+0x6f3/0x770 net/ipv6/addrconf.c:2061 ndisc_send_rs+0x92/0x6a0 net/ipv6/ndisc.c:690 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3982 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 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 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:exit_to_user_mode_loop+0x3d/0x100 kernel/entry/common.c:164 Code: 49 89 fe eb 1c e8 e3 89 3c 09 65 48 8b 05 2b 0b 8c 7e 48 8b 18 f7 c3 0e 30 02 00 0f 84 be 00 00 00 e8 07 f9 1a 00 fb f6 c3 08 <74> 05 e8 cc 18 45 09 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 fc 34 3f RSP: 0000:ffffc900044f7f10 EFLAGS: 00000202 RAX: ab3d204a0b133a00 RBX: 0000000000000008 RCX: ffffffff97357103 RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5e67c0 RBP: 0000000000000000 R08: ffffffff90165000 R09: ffffffff90165008 R10: ffffffff90165018 R11: ffffffff90165010 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc900044f7f58 R15: ffff8880256a9dc0 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:691 RIP: 0033:0x7f3ed5e5cd4e Code: ff ff 48 8d 3d 27 23 1b 00 e8 9e 12 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 41 54 55 53 48 83 ec 68 48 63 57 28 <48> 89 3c 24 48 8d 74 24 20 bf 01 00 00 00 48 8d 04 d5 00 00 00 00 RSP: 002b:00007f3ed6d06060 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 00007f3ed61a5fa8 RCX: 00007f3ed5f8cd29 RDX: 0000000000000840 RSI: 0000000000000080 RDI: 00007f3ed61a5fa0 RBP: 00007f3ed61a5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3ed61a5fac R13: 0000000000000000 R14: 00007ffe2ad25600 R15: 00007ffe2ad256e8