rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2628 jiffies s: 1469 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: 5259 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:memcpy_orig+0x9f/0x140 arch/x86/lib/memcpy_64.S:120
Code: 8d 76 e0 4c 89 47 f8 4c 89 4f f0 4c 89 57 e8 4c 89 5f e0 48 8d 7f e0 73 d2 83 c2 20 48 29 d6 48 29 d7 83 fa 10 72 34 4c 8b 06 <4c> 8b 4e 08 4c 8b 54 16 f0 4c 8b 5c 16 f8 4c 89 07 4c 89 4f 08 4c
RSP: 0018:ffffc90000007a90 EFLAGS: 00000246
RAX: ffffc90000007b40 RBX: ffff88802eb4e800 RCX: ffffffff8a0fb2dc
RDX: 0000000000000010 RSI: ffff88802eb4e800 RDI: ffffc90000007b40
RBP: 0000000000000000 R08: 00000000000080fe R09: 1ffff92000000f69
R10: dffffc0000000000 R11: fffff52000000f6a R12: ffff888029e1e568
R13: 0000000000000040 R14: dffffc0000000000 R15: ffff888029e1e010
FS:  00007f753543a6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6734ad66e4 CR3: 000000001e998000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __ipv6_get_lladdr net/ipv6/addrconf.c:1915 [inline]
 ipv6_get_lladdr+0x38c/0x3d0 net/ipv6/addrconf.c:1933
 addrconf_rs_timer+0x25d/0x660 net/ipv6/addrconf.c:4036
 call_timer_fn+0x17e/0x600 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers kernel/time/timer.c:2408 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2419
 run_timer_base kernel/time/timer.c:2428 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2438
 __do_softirq+0x2bc/0x943 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0xaad/0xfd0 kernel/printk/printk.c:2979
Code: ff ff e8 86 6e 1f 00 90 0f 0b 90 e9 d8 f8 ff ff e8 78 6e 1f 00 e8 03 0e f6 09 4d 85 f6 74 b6 e8 69 6e 1f 00 fb 48 8b 44 24 70 <42> 0f b6 04 38 84 c0 48 8b 7c 24 30 0f 85 22 02 00 00 0f b6 1f 31
RSP: 0018:ffffc90004c37140 EFLAGS: 00000246
RAX: 1ffff92000986e74 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc900043e9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90004c372f0 R08: ffffffff81758584 R09: 1ffffffff2595ca0
R10: dffffc0000000000 R11: fffffbfff2595ca1 R12: ffffffff8e8e61f8
R13: ffffffff8e8e61a0 R14: 0000000000000200 R15: dffffc0000000000
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3042
 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2342
 _printk+0xd5/0x120 kernel/printk/printk.c:2367
 tty_init_dev+0x43c/0x4c0 drivers/tty/tty_io.c:1463
 tty_open_by_driver drivers/tty/tty_io.c:2088 [inline]
 tty_open+0x9e5/0xdf0 drivers/tty/tty_io.c:2135
 chrdev_open+0x5b0/0x630 fs/char_dev.c:414
 do_dentry_open+0x907/0x15a0 fs/open.c:955
 do_open fs/namei.c:3642 [inline]
 path_openat+0x2860/0x3240 fs/namei.c:3799
 do_filp_open+0x235/0x490 fs/namei.c:3826
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406
 do_sys_open fs/open.c:1421 [inline]
 __do_sys_openat fs/open.c:1437 [inline]
 __se_sys_openat fs/open.c:1432 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1432
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f753467ca60
Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 09 82 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 5c 82 02 00 8b 44
RSP: 002b:00007f7535439c00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f753467ca60
RDX: 0000000000000002 RSI: 00007f7535439ca0 RDI: 00000000ffffff9c
RBP: 00007f7535439ca0 R08: 0000000000000000 R09: 00007f7535439a16
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007f75347abf80 R15: 00007ffd243b5cd8
 </TASK>
vkms_vblank_simulate: vblank timer overrun