ip6_tunnel: ip6erspan0 xmit: Local address not yet configured!
ip6_tunnel: ip6erspan0 xmit: Local address not yet configured!
ip6_tunnel: ip6gre2 xmit: Local address not yet configured!
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (5 ticks this GP) idle=ca3c/1/0x4000000000000000 softirq=91827/91829 fqs=10
rcu: (detected by 0, t=10502 jiffies, g=111589, q=564 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 20466 Comm: syz.4.3898 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
RIP: 0010:rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:752
Code: 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 53 65 ff 05 10 0c 8c 11 e8 bb 0d f8 09 <89> c3 83 f8 08 73 65 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 90
RSP: 0018:ffffc90000a08d38 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 0000000000000046 RCX: 0000000000010204
RDX: 0000000000010000 RSI: ffffffff8c289980 RDI: ffffffff8c289940
RBP: ffff88807e633300 R08: ffff88807e633327 R09: 0000000000000000
R10: ffff88807e633318 R11: ffffed100fcc6665 R12: ffff8880b8728280
R13: ffffffff81b20c8f R14: ffff8880b8728298 R15: 1ffff110170e509a
FS: 00007f75d4d706c0(0000) GS:ffff8881253b9000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f75d3fea540 CR3: 000000007a3ae000 CR4: 00000000003526f0
Call Trace:
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x4b/0x3c0 kernel/locking/lockdep.c:5879
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:176 [inline]
_raw_spin_unlock_irqrestore+0x1b/0x80 kernel/locking/spinlock.c:198
__run_hrtimer kernel/time/hrtimer.c:1926 [inline]
__hrtimer_run_queues+0x2bf/0xa10 kernel/time/hrtimer.c:1994
hrtimer_interrupt+0x448/0x910 kernel/time/hrtimer.c:2113
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
__sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1067
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198
Code: f7 e8 4d e0 fc f5 f7 c3 00 02 00 00 74 05 e8 c0 66 28 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 94 6d ee f5 65 8b 05 cd 67 91 07 85 c0 74 18 5b 41 5e c3 cc cc
RSP: 0018:ffffc9000cf2eee8 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000282 RCX: 0000000000000202
RDX: 0000000000000002 RSI: ffffffff8dfa1aa8 RDI: 0000000000000001
RBP: ffffc9000cf2f1d0 R08: ffffffff902f89f7 R09: 1ffffffff205f13e
R10: dffffc0000000000 R11: fffffbfff205f13f R12: ffff88807e6332f8
R13: dffffc0000000000 R14: ffff88807e6332a8 R15: ffff88807e6332a8
spin_unlock_irqrestore include/linux/spinlock.h:408 [inline]
taprio_change+0x31e2/0x3e30 net/sched/sch_taprio.c:1986
taprio_init+0x994/0xc00 net/sched/sch_taprio.c:2125
qdisc_create+0x7b5/0xf00 net/sched/sch_api.c:1319
__tc_modify_qdisc net/sched/sch_api.c:1753 [inline]
tc_modify_qdisc+0x17af/0x2390 net/sched/sch_api.c:1817
rtnetlink_rcv_msg+0x7b9/0xc00 net/core/rtnetlink.c:7006
netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2555
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1899
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x9b9/0xa20 net/socket.c:2699
___sys_sendmsg+0x2a5/0x360 net/socket.c:2753
__sys_sendmsg net/socket.c:2785 [inline]
__do_sys_sendmsg net/socket.c:2790 [inline]
__se_sys_sendmsg net/socket.c:2788 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2788
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f75d3f9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75d4d70028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f75d4216090 RCX: 00007f75d3f9ce59
RDX: 0000000000008010 RSI: 00002000000012c0 RDI: 0000000000000006
RBP: 00007f75d4032d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f75d4216128 R14: 00007f75d4216090 R15: 00007ffcccadf738
rcu: rcu_preempt kthread starved for 10482 jiffies! g111589 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:27688 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1840/0x57a0 kernel/sched/core.c:7189
__schedule_loop kernel/sched/core.c:7268 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7283
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
kthread+0x389/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 17851 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline]
RIP: 0010:smp_call_function_many_cond+0x10b0/0x14b0 kernel/smp.c:892
Code: c0 75 73 41 8b 1e 89 de 83 e6 01 31 ff e8 58 02 0c 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 07 e8 04 fe 0b 00 eb 37 f3 90 <41> 0f b6 04 1c 84 c0 75 10 41 f7 06 01 00 00 00 74 1e e8 e9 fd 0b
RSP: 0000:ffffc90003857580 EFLAGS: 00000293
RAX: ffffffff81b94247 RBX: dffffc0000000000 RCX: ffff88805053dd00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900038576a8 R08: ffffffff902f89f7 R09: 1ffffffff205f13e
R10: dffffc0000000000 R11: fffffbfff205f13f R12: 1ffff110170e81b1
R13: ffff8880b863c388 R14: ffff8880b8740d88 R15: 0000000000000001
FS: 000055558db8a500(0000) GS:ffff8881252b9000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3893456b8 CR3: 000000002bcd8000 CR4: 00000000003526f0
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1057
__flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
flush_tlb_mm_range+0x5c4/0x1090 arch/x86/mm/tlb.c:1451
dup_mmap+0x1786/0x1d90 mm/mmap.c:1905
dup_mm kernel/fork.c:1534 [inline]
copy_mm+0x13b/0x4a0 kernel/fork.c:1586
copy_process+0x1dc7/0x4380 kernel/fork.c:2264
kernel_clone+0x2d7/0x940 kernel/fork.c:2722
__do_sys_clone kernel/fork.c:2863 [inline]
__se_sys_clone kernel/fork.c:2847 [inline]
__x64_sys_clone+0x1b6/0x230 kernel/fork.c:2847
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff3885c58d2
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffea2bc67d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffea2bc67d0 RCX: 00007ff3885c58d2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffea2bc695c R08: 0000000000000000 R09: 0000000000000001
R10: 000055558db8a7d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 00000000000a3a1e R15: 00007ffea2bc69b0