rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=21657, q=149187 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10103 (4294968865-4294958762), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10104 jiffies! g21657 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:24240 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 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+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
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: 32 Comm: kworker/R-write Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:__lock_acquire+0x12a9/0x2050 kernel/locking/lockdep.c:5199
Code: 10 8b 18 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 00 98 2c 94 be 08 00 00 00 e8 cf 40 8e 00 48 0f a3 1d 07 39 bc 12 <73> 1d 48 69 c3 c8 00 00 00 48 8d 98 c0 16 c4 93 48 ba 00 00 00 00
RSP: 0018:ffffc90000a172f0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000028 RCX: ffffffff81705ef1
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff942c9800
RBP: 20167da2e6d05874 R08: ffffffff942c9807 R09: 1ffffffff2859300
R10: dffffc0000000000 R11: fffffbfff2859301 R12: 0000000000000000
R13: ffff88801e2e0ad8 R14: 1ffff11003c5c17e R15: ffff88801e2e0bf0
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff721bbe80 CR3: 0000000029bbe000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 seqcount_lockdep_reader_access+0xed/0x1e0 include/linux/seqlock.h:72
 read_seqbegin include/linux/seqlock.h:757 [inline]
 zone_span_seqbegin include/linux/memory_hotplug.h:103 [inline]
 page_outside_zone_boundaries mm/page_alloc.c:437 [inline]
 bad_range+0x5f/0x270 mm/page_alloc.c:456
 expand+0x65/0x1a0 mm/page_alloc.c:1383
 page_del_and_expand mm/page_alloc.c:1409 [inline]
 steal_suitable_fallback mm/page_alloc.c:1970 [inline]
 __rmqueue_fallback mm/page_alloc.c:2230 [inline]
 __rmqueue mm/page_alloc.c:2270 [inline]
 rmqueue_bulk mm/page_alloc.c:2290 [inline]
 __rmqueue_pcplist+0xe6f/0x2640 mm/page_alloc.c:2983
 rmqueue_pcplist mm/page_alloc.c:3025 [inline]
 rmqueue mm/page_alloc.c:3056 [inline]
 get_page_from_freelist+0x872/0x3190 mm/page_alloc.c:3454
 __alloc_pages_slowpath+0x414/0x1020 mm/page_alloc.c:4269
 __alloc_pages_noprof+0x493/0x710 mm/page_alloc.c:4746
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_slab_page+0x6a/0x120 mm/slub.c:2412
 allocate_slab+0x5a/0x2f0 mm/slub.c:2578
 new_slab mm/slub.c:2631 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818
 __slab_alloc+0x58/0xa0 mm/slub.c:3908
 __slab_alloc_node mm/slub.c:3961 [inline]
 slab_alloc_node mm/slub.c:4122 [inline]
 kmem_cache_alloc_node_noprof+0x1fe/0x320 mm/slub.c:4186
 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668
 alloc_skb include/linux/skbuff.h:1322 [inline]
 synproxy_send_client_synack_ipv6+0x1ba/0xc30 net/netfilter/nf_synproxy_core.c:873
 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+0x4af/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+0xc5/0x220 net/netfilter/core.c:626
 nf_hook include/linux/netfilter.h:269 [inline]
 NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312
 NF_HOOK+0x3a6/0x450 include/linux/netfilter.h:314
 __netif_receive_skb_one_core net/core/dev.c:5666 [inline]
 __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5779
 process_backlog+0x662/0x15b0 net/core/dev.c:6111
 __napi_poll+0xcd/0x490 net/core/dev.c:6775
 napi_poll net/core/dev.c:6844 [inline]
 net_rx_action+0x89b/0x1240 net/core/dev.c:6966
 handle_softirqs+0x2c7/0x980 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:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 9a 46 a0 f5 48 89 df e8 b2 8c a1 f5 e8 9d 78 cc f5 fb bf 01 00 00 00 <e8> c2 07 93 f5 65 8b 05 93 b1 33 74 85 c0 74 06 5b e9 cc 1a 20 00
RSP: 0018:ffffc90000a878b0 EFLAGS: 00000282
RAX: f651cf1e92d31b00 RBX: ffff888024d46370 RCX: ffffffff8170be0a
RDX: dffffc0000000000 RSI: ffffffff8c0acb40 RDI: 0000000000000001
RBP: ffffc90000a87b30 R08: ffffffff942c98b7 R09: 1ffffffff2859316
R10: dffffc0000000000 R11: fffffbfff2859317 R12: ffff888024d463c0
R13: dffffc0000000000 R14: ffff888024d46370 R15: 0000000002000000
 wb_workfn+0xeed/0x1090
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
 rescuer_thread+0x63f/0x10a0 kernel/workqueue.c:3487
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
kworker/R-write: page allocation failure: order:0, mode:0x40820(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1
CPU: 1 UID: 0 PID: 32 Comm: kworker/R-write Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 warn_alloc+0x278/0x410 mm/page_alloc.c:3531
 __alloc_pages_slowpath+0xf37/0x1020 mm/page_alloc.c:4465
 __alloc_pages_noprof+0x493/0x710 mm/page_alloc.c:4746
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_slab_page+0x6a/0x120 mm/slub.c:2412
 allocate_slab+0x1c0/0x2f0 mm/slub.c:2586
 new_slab mm/slub.c:2631 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818
 __slab_alloc+0x58/0xa0 mm/slub.c:3908
 __slab_alloc_node mm/slub.c:3961 [inline]
 slab_alloc_node mm/slub.c:4122 [inline]
 __do_kmalloc_node mm/slub.c:4263 [inline]
 __kmalloc_noprof+0x25a/0x400 mm/slub.c:4276
 kmalloc_noprof include/linux/slab.h:882 [inline]
 kzalloc_noprof include/linux/slab.h:1014 [inline]
 cfg80211_inform_single_bss_data+0xb2d/0x2090 net/wireless/scan.c:2305
 cfg80211_inform_bss_data+0x3ce/0x5e70 net/wireless/scan.c:3184
 cfg80211_inform_bss_frame_data+0x3b8/0x720 net/wireless/scan.c:3279
 ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
 ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5225 [inline]
 ieee80211_rx_list+0x2b02/0x3780 net/mac80211/rx.c:5462
 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485
 ieee80211_rx include/net/mac80211.h:5138 [inline]
 ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439
 tasklet_action_common+0x323/0x4d0 kernel/softirq.c:784
 handle_softirqs+0x2c7/0x980 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:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 9a 46 a0 f5 48 89 df e8 b2 8c a1 f5 e8 9d 78 cc f5 fb bf 01 00 00 00 <e8> c2 07 93 f5 65 8b 05 93 b1 33 74 85 c0 74 06 5b e9 cc 1a 20 00
RSP: 0018:ffffc90000a87b30 EFLAGS: 00000286
RAX: f651cf1e92d31b00 RBX: ffff88801ac98000 RCX: ffffffff9a3d0903
RDX: dffffc0000000000 RSI: ffffffff8c0acb40 RDI: 0000000000000001
RBP: ffffc90000a87d30 R08: ffffffff901cfeef R09: 1ffffffff2039fdd
R10: dffffc0000000000 R11: fffffbfff2039fde R12: ffff888024d463c0
R13: dffffc0000000000 R14: ffff88801daaa808 R15: 0000000002000000
 process_one_work kernel/workqueue.c:3198 [inline]
 process_scheduled_works+0x859/0x1850 kernel/workqueue.c:3310
 rescuer_thread+0x63f/0x10a0 kernel/workqueue.c:3487
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Mem-Info:
active_anon:19199 inactive_anon:0 isolated_anon:1253
 active_file:2107 inactive_file:37777 isolated_file:0
 unevictable:768 dirty:0 writeback:1
 slab_reclaimable:10704 slab_unreclaimable:1399473
 mapped:30812 shmem:17600 pagetables:798
 sec_pagetables:0 bounce:0
 kernel_misc_reclaimable:0
 free:15575 free_pcp:66 free_cma:0
Node 0 active_anon:76796kB inactive_anon:0kB active_file:8428kB inactive_file:151032kB unevictable:1536kB isolated(anon):5012kB isolated(file):0kB mapped:123248kB dirty:0kB writeback:4kB shmem:68864kB shmem_thp:4096kB shmem_pmdmapped:4096kB anon_thp:0kB writeback_tmp:0kB kernel_stack:11664kB pagetables:3192kB sec_pagetables:0kB all_unreclaimable? no
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:16kB pagetables:0kB sec_pagetables:0kB all_unreclaimable? no
Node 0 DMA free:9948kB boost:0kB min:208kB low:260kB high:312kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2465 2466 0 0
Node 0 DMA32 free:17932kB boost:76944kB min:111144kB low:119692kB high:128240kB reserved_highatomic:8192KB active_anon:76756kB inactive_anon:0kB active_file:7856kB inactive_file:150532kB unevictable:1536kB writepending:4kB present:3129332kB managed:2552500kB mlocked:0kB bounce:0kB free_pcp:340kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 Normal free:16kB boost:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:40kB inactive_anon:0kB active_file:772kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048580kB managed:876kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:24392kB boost:10240kB min:65928kB low:79848kB high:93768kB reserved_highatomic:38912KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB writepending:0kB present:4194300kB managed:4111164kB mlocked:0kB bounce:0kB free_pcp:8272kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 1*1024kB (U) 2*2048kB (UM) 1*4096kB (M) = 9820kB
Node 0 DMA32: 766*4kB (ME) 492*8kB (M) 0*16kB 3*32kB (H) 5*64kB (H) 2*128kB (H) 0*256kB 2*512kB (H) 1*1024kB (H) 0*2048kB 0*4096kB = 9720kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 8*4kB (MEH) 11*8kB (UMEH) 8*16kB (MEH) 23*32kB (UMEH) 12*64kB (MEH) 12*128kB (UMEH) 12*256kB (MH) 13*512kB (H) 11*1024kB (H) 0*2048kB 0*4096kB = 24280kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=1 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
57407 total pagecache pages
0 pages in swap cache
Free swap  = 124984kB
Total swap = 124996kB
2097051 pages RAM
0 pages HighMem/MovableOnly
427076 pages reserved
0 pages cma reserved
SLUB: Unable to allocate memory on CPU 1 (of node 0) on node -1, gfp=0x920(GFP_ATOMIC|__GFP_ZERO)
  cache: kmalloc-96, object size: 96, buffer size: 128, default order: 0, min order: 0
  node 0: slabs: 449, objs: 14368, free: 0
  node 1: slabs: 431, objs: 13792, free: 9