sched: DL replenish lagged too much
ip6_tunnel: K 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): P14123/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=135225, q=783 ncpus=1)
task:syz.8.2406 state:R running task stack:27568 pid:14123 tgid:14122 ppid:10596 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x17dd/0x5940 kernel/sched/core.c:7270
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7592
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_release+0x2e1/0x3c0 kernel/locking/lockdep.c:5934
Code: 37 f2 11 00 00 00 00 eb b5 e8 0b e7 42 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 63 f2 f1 11 48 3b 44 24 28 75 48 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 40 f4 45 0a cc 48 8d 3d 38 39 da
RSP: 0018:ffffc90004077588 EFLAGS: 00000286
RAX: ac7b5d7fc189aa00 RBX: 0000000000000206 RCX: 0000000000000046
RDX: ffffc90004077601 RSI: ffffffff8e703742 RDI: ffffffff8c6db080
RBP: ffff888025490c00 R08: ffffc90004077910 R09: 0000000000000000
R10: ffffc900040776b8 R11: fffff5200080eed9 R12: 0000000000000002
R13: 0000000000000002 R14: ffffffff8ed5c9a0 R15: ffff888025490000
rcu_lock_release include/linux/rcupdate.h:319 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
class_rcu_destructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0x1baa/0x2550 arch/x86/kernel/unwind_orc.c:709
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:183
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1400 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2944
__slab_free+0x274/0x2c0 mm/slub.c:5815
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
__do_kmalloc_node mm/slub.c:5413 [inline]
__kmalloc_noprof+0x307/0x720 mm/slub.c:5439
_kmalloc_noprof include/linux/slab.h:995 [inline]
tomoyo_realpath_from_path+0xef/0x640 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_number_perm+0x246/0x5f0 security/tomoyo/file.c:728
security_file_ioctl+0xc3/0x2a0 security/security.c:2525
__do_sys_ioctl fs/ioctl.c:591 [inline]
__se_sys_ioctl+0x47/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffaa399ddeb
RSP: 002b:00007ffaa490a050 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffaa3c26038 RCX: 00007ffaa399ddeb
RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffaa490a6c0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffaa3c26038 R14: 00007ffd01458780 R15: 00007ffd01458868
rcu: rcu_preempt kthread starved for 213 jiffies! g135225 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:26848 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x17dd/0x5940 kernel/sched/core.c:7270
__schedule_loop kernel/sched/core.c:7347 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7362
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x1240 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 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: 3226 Comm: kworker/R-bat_e Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: bat_events batadv_dat_purge
RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5913
Code: ff ff ff e8 10 1a 43 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 62 25 f2 11 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 3f 27 46 0a cc 48 8d 3d c7 68 da
RSP: 0018:ffffc90000007620 EFLAGS: 00000292
RAX: b4242b3c9e202e00 RBX: 0000000000000000 RCX: 8000000000000101
RDX: 00000000105209fd RSI: ffffffff8e703742 RDI: ffffffff8c6db080
RBP: ffff88803255be80 R08: 2f00000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8ed5c9a0 R12: ffffffff8ed5c9a0
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff888124ccb000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08d2e51821 CR3: 000000007fa0e000 CR4: 00000000003526f0
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
__skb_ext_alloc net/core/skbuff.c:7114 [inline]
skb_ext_add+0x148/0x8e0 net/core/skbuff.c:7218
can_skb_ext_add include/linux/can/skb.h:43 [inline]
bcm_can_tx+0x308/0xb10 net/can/bcm.c:354
bcm_tx_timeout_handler+0x16c/0x550 net/can/bcm.c:519
__run_hrtimer kernel/time/hrtimer.c:2067 [inline]
__hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2124
hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2141
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
__batadv_dat_purge net/batman-adv/distributed-arp-table.c:252 [inline]
batadv_dat_purge+0x2d7/0x3c0 net/batman-adv/distributed-arp-table.c:271
process_one_work kernel/workqueue.c:3399 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3482
rescuer_thread+0x7c5/0x10e0 kernel/workqueue.c:3706
kthread+0x38b/0x480 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