ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9/1:b..l
rcu: (detected by 1, t=10505 jiffies, g=78569, q=328 ncpus=2)
task:kworker/0:0 state:R running task stack:22456 pid:9 tgid:9 ppid:2 task_flags:0x4288060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1295/0x67a0 kernel/sched/core.c:7189
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7513
irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline]
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x205/0x970 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_preempt_read_exit kernel/rcu/tree_plugin.h:396 [inline]
RIP: 0010:__rcu_read_unlock+0x1d/0x5e0 kernel/rcu/tree_plugin.h:435
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 53 65 48 8b 1d d2 e5 1b 12 48 8d bb c4 04 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48
RSP: 0018:ffffc900000e7688 EFLAGS: 00000296
RAX: 0000000000000000 RBX: ffff88801e28ca80 RCX: ffffc900000e7684
RDX: 0000000000000007 RSI: ffffffff8dee9f9e RDI: ffff88801e28cf44
RBP: ffff88801c6a7800 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888072fb1000
rcu_read_unlock include/linux/rcupdate.h:871 [inline]
class_rcu_destructor include/linux/rcupdate.h:1181 [inline]
kernfs_root+0xf8/0x2a0 fs/kernfs/kernfs-internal.h:74
kernfs_next_descendant_post+0x61/0x4b0 fs/kernfs/dir.c:1411
__kernfs_remove+0x193/0xb80 fs/kernfs/dir.c:1561
kernfs_remove_by_name_ns+0x7c/0x120 fs/kernfs/dir.c:1798
kernfs_remove_by_name include/linux/kernfs.h:639 [inline]
sysfs_unmerge_group+0xe7/0x170 fs/sysfs/group.c:408
remove_power_attributes drivers/usb/core/sysfs.c:675 [inline]
usb_remove_sysfs_dev_files+0x6d/0xf0 drivers/usb/core/sysfs.c:1100
usb_bus_notify+0xe7/0x110 drivers/usb/core/usb.c:1185
notifier_call_chain+0x99/0x400 kernel/notifier.c:85
blocking_notifier_call_chain kernel/notifier.c:380 [inline]
blocking_notifier_call_chain+0x69/0xa0 kernel/notifier.c:368
bus_notify+0x56/0x80 drivers/base/bus.c:1079
device_del+0x178/0x9b0 drivers/base/core.c:3868
usb_disconnect+0x5b5/0x9a0 drivers/usb/core/hub.c:2376
hub_port_connect drivers/usb/core/hub.c:5407 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
port_event drivers/usb/core/hub.c:5871 [inline]
hub_event+0x1d0c/0x4af0 drivers/usb/core/hub.c:5953
process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314
process_scheduled_works kernel/workqueue.c:3397 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: rcu_preempt kthread timer wakeup didn't happen for 10504 jiffies! g78569 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=43137
rcu: rcu_preempt kthread starved for 10505 jiffies! g78569 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28216 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1295/0x67a0 kernel/sched/core.c:7189
__schedule_loop kernel/sched/core.c:7268 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7283
schedule_timeout+0x127/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1a9/0x900 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x179/0x230 kernel/rcu/tree.c:2297
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 13344 Comm: syz.0.1992 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__lock_acquire+0x19d/0x2630 kernel/locking/lockdep.c:5174
Code: 45 0f b7 ff 41 c1 e6 10 44 89 c2 c1 e0 0d 41 81 e6 00 00 03 00 c1 e2 12 44 09 f8 81 e2 00 00 04 00 41 c1 e1 13 44 09 f0 09 d0 <8b> 94 24 c8 00 00 00 44 09 c8 c1 e2 14 09 d0 8b 94 24 b8 00 00 00
RSP: 0018:ffffc90000007c40 EFLAGS: 00000006
RAX: 0000000000044000 RBX: ffff88802638b120 RCX: 0000000000000002
RDX: 0000000000040000 RSI: 0000000000000000 RDI: ffffffff9b446db0
RBP: ffff88802638a540 R08: 0000000000000001 R09: 0000000000080000
R10: ffffffff9b446db0 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000555560f07500(0000) GS:ffff888124383000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f983040c948 CR3: 00000000290bd000 CR4: 00000000003526f0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x1b1/0x370 kernel/locking/lockdep.c:5825
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:166
debug_object_deactivate+0x135/0x3b0 lib/debugobjects.c:900
debug_hrtimer_deactivate kernel/time/hrtimer.c:490 [inline]
__run_hrtimer kernel/time/hrtimer.c:1898 [inline]
__hrtimer_run_queues+0x2f0/0xa00 kernel/time/hrtimer.c:1994
hrtimer_interrupt+0x3e5/0x940 kernel/time/hrtimer.c:2113
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
__sysvec_apic_timer_interrupt+0x10b/0x460 arch/x86/kernel/apic/apic.c:1067
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0x9e/0xc0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7513
Code: 00 00 00 fc ff df 48 89 eb 48 c1 eb 03 48 01 d3 f6 c4 02 75 47 bf 01 00 00 00 e8 20 6a 4a f6 e8 6b 50 86 f6 fb bf 01 00 00 00 60 90 ff ff 9c 58 fa f6 c4 02 75 1e bf 01 00 00 00 e8 4e 08 4a
RSP: 0018:ffffc900058af9e8 EFLAGS: 00000202
RAX: 0000000000000d8f RBX: ffffed1004c714a8 RCX: 0000000000000080
RDX: 0000000000000000 RSI: ffffffff8df0f4f8 RDI: 0000000000000001
RBP: ffff88802638a540 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline]
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x205/0x970 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__rcu_read_unlock+0x79/0x5e0 kernel/rcu/tree_plugin.h:437
Code: 3b 48 8d bb c8 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 <84> d2 0f 85 da 01 00 00 8b 83 c8 04 00 00 85 c0 75 51 48 8d bb c4
RSP: 0018:ffffc900058afaf0 EFLAGS: 00000206
RAX: 0000000000000003 RBX: ffff88802638a540 RCX: ffffc900058afadc
RDX: 0000000000000000 RSI: ffffffff8dee9f9e RDI: ffff88802638aa08
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888065c96060
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
pte_unmap include/linux/pgtable.h:117 [inline]
wp_page_copy mm/memory.c:3976 [inline]
do_wp_page+0x13d7/0x4350 mm/memory.c:4336
handle_pte_fault mm/memory.c:6443 [inline]
__handle_mm_fault+0x1ab6/0x2a00 mm/memory.c:6565
handle_mm_fault+0x37b/0xa30 mm/memory.c:6734
do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1334
handle_page_fault arch/x86/mm/fault.c:1474 [inline]
exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f98300507fc
Code: 23 83 c0 01 44 39 d0 75 dc 48 89 f0 25 ff 1f 00 00 49 89 34 c1 41 88 3c 00 31 c0 c3 66 90 41 38 3c 10 74 0b 41 88 3c 10 31 c0 <49> 89 34 d1 c3 b8 01 00 00 00 c3 66 0f 1f 84 00 00 00 00 00 48 83
RSP: 002b:00007ffff9bec098 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff84b51529 RCX: 0000000000000000
RDX: 0000000000001529 RSI: ffffffff84b51529 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00007f9830400000 R09: 00007f9830402000
R10: 0000000084b5152d R11: 0000000000000000 R12: 00007f9830416038
R13: 0000000000000048 R14: ffffffff84b51b27 R15: 00007f9830f45720