sched: DL replenish lagged too much
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4669/1:b..l P11/2:b..l
rcu: (detected by 0, t=10503 jiffies, g=17829, q=1236 ncpus=2)
task:kworker/u8:0 state:R running task stack:19704 pid:11 tgid:11 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6674
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6853
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6877
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0x179/0x200 kernel/softirq.c:389
local_bh_enable include/linux/bottom_half.h:33 [inline]
ip6t_do_table+0x1687/0x18a0 net/ipv6/netfilter/ip6_tables.c:375
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK include/linux/netfilter.h:312 [inline]
ndisc_send_skb+0x122f/0x1380 net/ipv6/ndisc.c:511
addrconf_dad_completed+0x76c/0xcd0 net/ipv6/addrconf.c:4362
addrconf_dad_work+0xdc2/0x16f0
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:klogd state:R running task stack:23072 pid:4669 tgid:4669 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6674
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6853
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6877
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
unwind_next_frame+0x18f8/0x22d0 arch/x86/kernel/unwind_orc.c:672
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1108 [inline]
free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638
discard_slab mm/slub.c:2678 [inline]
__put_partials+0xeb/0x130 mm/slub.c:3146
put_cpu_partial+0x17c/0x250 mm/slub.c:3221
__slab_free+0x2ea/0x3d0 mm/slub.c:4450
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:385
kasan_kmalloc include/linux/kasan.h:257 [inline]
__do_kmalloc_node mm/slub.c:4265 [inline]
__kmalloc_node_track_caller_noprof+0x225/0x440 mm/slub.c:4284
kmalloc_reserve+0x111/0x2a0 net/core/skbuff.c:609
__alloc_skb+0x1f3/0x440 net/core/skbuff.c:678
alloc_skb include/linux/skbuff.h:1322 [inline]
alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612
sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883
unix_dgram_sendmsg+0x6d3/0x1f80 net/unix/af_unix.c:2027
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x398/0x4f0 net/socket.c:2210
__do_sys_sendto net/socket.c:2222 [inline]
__se_sys_sendto net/socket.c:2218 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2218
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1e841729b5
RSP: 002b:00007ffc159f4428 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1e841729b5
RDX: 0000000000000088 RSI: 00005649eada1950 RDI: 0000000000000003
RBP: 00005649ead9b910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f1e84300212 R14: 00007ffc159f4528 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10573 jiffies! g17829 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:26144 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6674
__schedule_loop kernel/sched/core.c:6751 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6766
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 25 Comm: kworker/1:0 Not tainted 6.11.0-syzkaller-08833-gde5cb0dcb74c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: events_long defense_work_handler
RIP: 0010:lock_acquire+0x2a9/0x550 kernel/locking/lockdep.c:5826
Code: 66 43 c7 44 25 15 00 00 43 c6 44 25 17 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 00 01 00 00 0f 85 95 02 00 00 48 8d 65 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 65 8b 05 92 6c 92 7e 85
RSP: 0018:ffffc90000a17928 EFLAGS: 00000046
RAX: d4ec8c8898874600 RBX: 1ffff92000142f30 RCX: d4ec8c8898874600
RDX: dffffc0000000000 RSI: ffffffff8c0adbc0 RDI: ffffffff8c60ddc0
RBP: ffffc90000a17948 R08: ffffffff942597c7 R09: 1ffffffff284b2f8
R10: dffffc0000000000 R11: fffffbfff284b2f9 R12: 1ffff92000142f08
R13: dffffc0000000000 R14: ffffc90000a17860 R15: 0000000000000046
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f454d2ab440 CR3: 000000002d93c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
debug_object_deactivate+0x158/0x390 lib/debugobjects.c:763
debug_hrtimer_deactivate kernel/time/hrtimer.c:428 [inline]
debug_deactivate+0x1b/0x220 kernel/time/hrtimer.c:484
__run_hrtimer kernel/time/hrtimer.c:1659 [inline]
__hrtimer_run_queues+0x305/0xd50 kernel/time/hrtimer.c:1755
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1026 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1043
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_unaligned_le64 include/asm-generic/unaligned.h:28 [inline]
RIP: 0010:__siphash_unaligned+0x10d/0x3d0 lib/siphash.c:86
Code: 4c 24 28 31 ff 49 89 d5 49 8d 6d 07 4c 89 e8 48 c1 e8 03 0f b6 04 30 84 c0 0f 85 af 00 00 00 48 89 e8 48 c1 e8 03 0f b6 04 30 <84> c0 0f 85 d5 00 00 00 4d 01 f7 49 c1 c6 0d 48 8b 04 3a 4d 31 fe
RSP: 0018:ffffc90000a17e98 EFLAGS: 00000a07
RAX: 0000000000000000 RBX: 08e64a04d114f112 RCX: ffff88801d2f1e00
RDX: ffffc90000a17f60 RSI: dffffc0000000000 RDI: 0000000000000008
RBP: ffffc90000a17f6f R08: 0000000000000000 R09: 0100000000000000
R10: 0000000000000000 R11: 0100000000000000 R12: 9e7c022a76fa1497
R13: ffffc90000a17f68 R14: edc5cd811840af5e R15: 37ee8ecdddd25517
siphash include/linux/siphash.h:86 [inline]
cookie_hash net/ipv6/syncookies.c:59 [inline]
secure_tcp_syn_cookie net/ipv6/syncookies.c:71 [inline]
__cookie_v6_init_sequence+0x399/0x680 net/ipv6/syncookies.c:104
nf_ipv6_cookie_init_sequence include/linux/netfilter_ipv6.h:175 [inline]
synproxy_send_client_synack_ipv6+0x470/0xc30 net/netfilter/nf_synproxy_core.c:885
nft_synproxy_eval_v6 net/netfilter/nft_synproxy.c:90 [inline]
nft_synproxy_do_eval+0x739/0xa60 net/netfilter/nft_synproxy.c:145
expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
nft_do_chain_inet+0x418/0x6b0 net/netfilter/nft_chain_filter.c:161
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5662 [inline]
__netif_receive_skb+0x1ea/0x650 net/core/dev.c:5775
process_backlog+0x662/0x15b0 net/core/dev.c:6107
__napi_poll+0xcb/0x490 net/core/dev.c:6771
napi_poll net/core/dev.c:6840 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6962
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:nr_blockdev_pages+0x0/0x100 block/bdev.c:476
Code: 89 fb e8 93 bb fd fc 48 81 c3 58 06 00 00 48 89 df 5b e9 43 98 81 fd 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 41 57 41 56 41 55 41 54 53 50 48 bd 00 00 00 00 00
RSP: 0018:ffffc900001f7a10 EFLAGS: 00000246
RAX: 1ffff9200003ef59 RBX: 0000000000057756 RCX: ffffffff81df3fb7
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffc900001f7ac8
RBP: ffffc900001f7b88 R08: ffffffff8e6143c7 R09: 1ffffffff1cc2878
R10: dffffc0000000000 R11: fffffbfff1cc2879 R12: dffffc0000000000
R13: 1ffff9200003ef50 R14: 00000000000004cc R15: ffffc900001f7aa0
si_meminfo+0x10e/0x180 mm/show_mem.c:80
update_defense_level+0x99/0xcf0 net/netfilter/ipvs/ip_vs_ctl.c:102
defense_work_handler+0x22/0xd0 net/netfilter/ipvs/ip_vs_ctl.c:235
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244