rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6757/1:b..l P6759/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=10917, q=873 ncpus=2)
task:dhcpcd state:R running task stack:26752 pid:6759 tgid:6759 ppid:5499 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959
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:1127 [inline]
free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2657
discard_slab mm/slub.c:2673 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3142
put_cpu_partial+0x17c/0x250 mm/slub.c:3217
__slab_free+0x290/0x380 mm/slub.c:4468
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:250 [inline]
slab_post_alloc_hook mm/slub.c:4104 [inline]
slab_alloc_node mm/slub.c:4153 [inline]
__do_kmalloc_node mm/slub.c:4282 [inline]
__kmalloc_noprof+0x236/0x4c0 mm/slub.c:4295
kmalloc_noprof include/linux/slab.h:905 [inline]
sk_prot_alloc+0xe0/0x210 net/core/sock.c:2165
sk_alloc+0x38/0x370 net/core/sock.c:2218
packet_create+0xf9/0x780 net/packet/af_packet.c:3417
__sock_create+0x4c0/0xa30 net/socket.c:1558
sock_create net/socket.c:1616 [inline]
__sys_socket_create net/socket.c:1653 [inline]
__sys_socket+0x150/0x3c0 net/socket.c:1700
__do_sys_socket net/socket.c:1714 [inline]
__se_sys_socket net/socket.c:1712 [inline]
__x64_sys_socket+0x7a/0x90 net/socket.c:1712
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: 0033:0x7fb1fdc89bd7
RSP: 002b:00007ffc23911168 EFLAGS: 00000202 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000564dbe36bca3 RCX: 00007fb1fdc89bd7
RDX: 0000000000000300 RSI: 0000000000080803 RDI: 0000000000000011
RBP: 0000000000000000 R08: 0000564de4778a70 R09: 0000000020000000
R10: 000000000000006d R11: 0000000000000202 R12: 0000564de4776a20
R13: 0000564de4778958 R14: 00007ffc23931a5c R15: 0000564de4778924
task:dhcpcd state:R running task stack:26752 pid:6757 tgid:6757 ppid:5499 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
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:lock_release+0x658/0xa30 kernel/locking/lockdep.c:5874
Code: 3c 3b 00 74 08 4c 89 f7 e8 85 f8 8a 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc9001b23f8e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92003647f2e RCX: ffffc9001b23f903
RDX: 0000000000000001 RSI: ffffffff8c0aa960 RDI: ffffffff8c5f9780
RBP: ffffc9001b23fa18 R08: ffffffff901963f7 R09: 1ffffffff2032c7e
R10: dffffc0000000000 R11: fffffbfff2032c7f R12: 1ffff92003647f28
R13: 0000000000000246 R14: ffffc9001b23f970 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
page_ext_put+0xa3/0xc0 mm/page_ext.c:550
page_table_check_free include/linux/page_table_check.h:41 [inline]
free_pages_prepare mm/page_alloc.c:1128 [inline]
free_unref_page+0xd53/0x1010 mm/page_alloc.c:2657
discard_slab mm/slub.c:2673 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3142
put_cpu_partial+0x17c/0x250 mm/slub.c:3217
__slab_free+0x290/0x380 mm/slub.c:4468
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:250 [inline]
slab_post_alloc_hook mm/slub.c:4104 [inline]
slab_alloc_node mm/slub.c:4153 [inline]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4160
lsm_inode_alloc security/security.c:755 [inline]
security_inode_alloc+0x37/0x310 security/security.c:1691
inode_init_always_gfp+0xa0f/0xd90 fs/inode.c:306
inode_init_always include/linux/fs.h:3121 [inline]
alloc_inode+0x9f/0x1a0 fs/inode.c:343
sock_alloc net/socket.c:615 [inline]
__sock_create+0x127/0xa30 net/socket.c:1522
sock_create net/socket.c:1616 [inline]
__sys_socket_create net/socket.c:1653 [inline]
__sys_socket+0x150/0x3c0 net/socket.c:1700
__do_sys_socket net/socket.c:1714 [inline]
__se_sys_socket net/socket.c:1712 [inline]
__x64_sys_socket+0x7a/0x90 net/socket.c:1712
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: 0033:0x7fb1fdc89bd7
RSP: 002b:00007ffc23911168 EFLAGS: 00000202 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000564dbe36bca3 RCX: 00007fb1fdc89bd7
RDX: 0000000000000300 RSI: 0000000000080803 RDI: 0000000000000011
RBP: 0000000000000000 R08: 0000564de4778720 R09: 0000000000040000
R10: 000000000000006d R11: 0000000000000202 R12: 0000564de4776a20
R13: 0000564de4778118 R14: 00007ffc23931a5c R15: 0000564de47780e4
rcu: rcu_preempt kthread starved for 3928 jiffies! g10917 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:25072 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
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: 24 Comm: ksoftirqd/1 Not tainted 6.13.0-rc2-syzkaller-00163-g954a2b40719a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:nf_hook_state_init include/linux/netfilter.h:170 [inline]
RIP: 0010:nf_hook include/linux/netfilter.h:266 [inline]
RIP: 0010:NF_HOOK+0x5b0/0x7c0 include/linux/netfilter.h:312
Code: e8 55 c7 69 f7 4c 8b 75 10 4c 89 6c 24 68 49 8d 7c 24 10 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 35 c7 69 f7 4c 89 74 24 70 <49> 8d 7c 24 18 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 19 c7 69
RSP: 0018:ffffc900001e65c0 EFLAGS: 00000246
RAX: 1ffff9200003ccc6 RBX: dffffc0000000000 RCX: ffff88801d2f8000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: ffffc900001e6630
RBP: ffffc900001e66d8 R08: ffffffff8a9bf594 R09: ffffffff8a9bf48c
R10: 0000000000000004 R11: ffff88801d2f8000 R12: ffffc900001e6620
R13: 0000000000000000 R14: ffff8881443ec000 R15: 1ffff9200003ccc0
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f698baa56c0 CR3: 000000003113a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
br_nf_post_routing+0xa20/0xe80 net/bridge/br_netfilter_hooks.c:997
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+0x2a7/0x460 include/linux/netfilter.h:312
br_forward_finish+0xd8/0x130 net/bridge/br_forward.c:66
br_nf_forward_finish+0xb49/0xfb0 net/bridge/br_netfilter_hooks.c:693
NF_HOOK+0x700/0x7c0 include/linux/netfilter.h:314
br_nf_forward_ip+0x61e/0x7b0 net/bridge/br_netfilter_hooks.c:747
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+0x2a7/0x460 include/linux/netfilter.h:312
__br_forward+0x489/0x660 net/bridge/br_forward.c:115
br_handle_frame_finish+0x18ba/0x1fe0 net/bridge/br_input.c:215
br_nf_hook_thresh+0x472/0x590
br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424
__netif_receive_skb_core+0x14eb/0x4690 net/core/dev.c:5566
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
process_backlog+0x662/0x15b0 net/core/dev.c:6117
__napi_poll+0xcb/0x490 net/core/dev.c:6883
napi_poll net/core/dev.c:6952 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:7074
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
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