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): P15449/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=96861, q=2743817 ncpus=2)
task:syz.4.2748 state:R running task stack:23728 pid:15449 tgid:15432 ppid:14190 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7004
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:stack_trace_consume_entry+0x2f/0x280 kernel/stacktrace.c:86
Code: 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 89 fb 48 ba 00 00 00 00 00 fc ff df 4c 8d 4f 10 4d 89 cf 49 c1 ef 03 41 0f b6 04 17 <84> c0 0f 85 06 01 00 00 44 8b 43 10 48 8d 6b 08 49 89 ec 49 c1 ec
RSP: 0018:ffffc9000ad07010 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffc9000ad07140 RCX: ffffffff917bd000
RDX: dffffc0000000000 RSI: ffffffff8209331b RDI: ffffc9000ad07140
RBP: ffffc9000ad070f0 R08: ffffc9000ad071d0 R09: ffffc9000ad07150
R10: ffffc9000ad070b0 R11: ffffffff8180a0e0 R12: ffff88801f3fda00
R13: ffffffff8180a0e0 R14: ffffc9000ad07140 R15: 1ffff920015a0e2a
arch_stack_walk+0x10e/0x150 arch/x86/kernel/stacktrace.c:27
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:2677 [inline]
__put_partials+0xeb/0x130 mm/slub.c:3145
put_cpu_partial+0x17c/0x250 mm/slub.c:3220
__slab_free+0x2ea/0x3d0 mm/slub.c:4449
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_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:247 [inline]
slab_post_alloc_hook mm/slub.c:4085 [inline]
slab_alloc_node mm/slub.c:4134 [inline]
kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141
mt_alloc_one lib/maple_tree.c:162 [inline]
mas_alloc_nodes+0x26c/0x840 lib/maple_tree.c:1241
mas_node_count_gfp lib/maple_tree.c:1321 [inline]
mas_preallocate+0x554/0x8c0 lib/maple_tree.c:5546
vma_iter_prealloc mm/vma.h:432 [inline]
mmap_region+0x1ea1/0x2990 mm/mmap.c:1508
do_mmap+0x8f0/0x1000 mm/mmap.c:496
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
ksys_mmap_pgoff+0x53e/0x720 mm/mmap.c:542
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: 0033:0x7f69ba57dff9
RSP: 002b:00007f69bb34b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f69ba7362e0 RCX: 00007f69ba57dff9
RDX: 0000000000000004 RSI: 00000000001e9000 RDI: 0000000020000000
RBP: 00007f69ba5f0296 R08: ffffffffffffffff R09: 0000000000000000
R10: 000200000006c832 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f69ba7362e0 R15: 00007ffe578f94c8
rcu: rcu_preempt kthread starved for 10254 jiffies! g96861 f0x2 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:25816 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
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:
CPU: 1 UID: 0 PID: 5326 Comm: kworker/1:8 Not tainted 6.12.0-rc2-syzkaller-00543-g6aac56631831 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
RIP: 0010:xt_write_recseq_end include/linux/netfilter/x_tables.h:397 [inline]
RIP: 0010:ipt_do_table+0x1526/0x1860 net/ipv4/netfilter/ip_tables.c:356
Code: e9 30 f7 ff ff e8 fa a7 47 f7 48 c7 c7 00 53 dc 8f 48 8b 74 24 18 e8 69 57 a7 fa e9 c8 fb ff ff e8 df a7 47 f7 44 8b 7c 24 54 <48> c7 c7 20 e4 19 8d e8 be 86 79 01 8b 84 24 a4 00 00 00 65 01 05
RSP: 0018:ffffc90000a17c60 EFLAGS: 00000246
RAX: ffffffff8a4d4037 RBX: 0000000000000001 RCX: ffff8880213b8000
RDX: 0000000000000100 RSI: 00000000fffffffe RDI: 00000000fffffffb
RBP: ffffc90000a17e48 R08: ffffffff8a4d3a87 R09: 0000000000000000
R10: ffffc90000a17dc0 R11: fffff52000142fbc R12: ffffffff901eb2e0
R13: dffffc0000000000 R14: ffffc90000a17dde R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe18708278 CR3: 00000000640ae000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
__ip_local_out+0x3d9/0x4e0 net/ipv4/ip_output.c:119
ip_local_out+0x26/0x70 net/ipv4/ip_output.c:128
synproxy_send_client_synack+0x8b8/0xf30 net/netfilter/nf_synproxy_core.c:484
nft_synproxy_eval_v4+0x3ca/0x610 net/netfilter/nft_synproxy.c:59
nft_synproxy_do_eval+0x362/0xa60 net/netfilter/nft_synproxy.c:141
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:5668 [inline]
__netif_receive_skb+0x2bf/0x650 net/core/dev.c:5781
process_backlog+0x662/0x15b0 net/core/dev.c:6113
__napi_poll+0xcb/0x490 net/core/dev.c:6777
napi_poll net/core/dev.c:6846 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6968
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline]
wg_packet_tx_worker+0x160/0x810 drivers/net/wireguard/send.c:276
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