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): P5849/1:b..l P6497/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=9353, q=1370634 ncpus=2)
task:syz.0.177 state:R running task stack:21664 pid:6497 tgid:6497 ppid:5847 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7012
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:__kasan_check_write+0x0/0x20 mm/kasan/shadow.c:36
Code: 48 8b 0c 24 31 d2 e9 6f e6 ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 89 f6 48 8b 0c 24 ba 01 00 00 00 e9 3c e6 ff ff 66 2e
RSP: 0018:ffffc9000c697670 EFLAGS: 00000293
RAX: ffffffff820935a5 RBX: 0000000000000008 RCX: ffff888025e55a00
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88801dd015d0
RBP: 0000000000001961 R08: ffffffff82093586 R09: 1ffff11003ba02b0
R10: dffffc0000000000 R11: ffffed1003ba02b1 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88801dd015d8 R15: ffff88801dd015d0
instrument_write include/linux/instrumented.h:40 [inline]
___clear_bit include/asm-generic/bitops/instrumented-non-atomic.h:44 [inline]
__update_page_owner_free_handle mm/page_owner.c:272 [inline]
__reset_page_owner+0x152/0x430 mm/page_owner.c:298
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_node_noprof+0x16b/0x320 mm/slub.c:4186
alloc_task_struct_node kernel/fork.c:180 [inline]
dup_task_struct+0x57/0x8c0 kernel/fork.c:1107
copy_process+0x5d1/0x3d50 kernel/fork.c:2203
kernel_clone+0x226/0x8f0 kernel/fork.c:2784
__do_sys_clone3 kernel/fork.c:3088 [inline]
__se_sys_clone3+0x2cb/0x350 kernel/fork.c:3067
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: 0033:0x7f79575b2779
RSP: 002b:00007ffc39e5c708 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f79575350a0 RCX: 00007f79575b2779
RDX: 00007f79575350a0 RSI: 0000000000000058 RDI: 00007ffc39e5c750
RBP: 00007f79583396c0 R08: 00007f79583396c0 R09: 00007ffc39e5c837
R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffffa8
R13: 000000000000006e R14: 00007ffc39e5c750 R15: 00007ffc39e5c838
task:syz-executor state:R running task stack:19888 pid:5849 tgid:5849 ppid:5837 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7012
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:5850
Code: 3c 3b 00 74 08 4c 89 f7 e8 a5 29 8e 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:ffffc90003dbf400 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920007b7e92 RCX: ffffc90003dbf403
RDX: 0000000000000004 RSI: ffffffff8c0adcc0 RDI: ffffffff8c6102e0
RBP: ffffc90003dbf540 R08: ffffffff901d002f R09: 1ffffffff203a005
R10: dffffc0000000000 R11: fffffbfff203a006 R12: 1ffff920007b7e8c
R13: 0000000000000246 R14: ffffc90003dbf490 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
__reset_page_owner+0x2de/0x430 mm/page_owner.c:300
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
vma_lock_alloc kernel/fork.c:446 [inline]
vm_area_dup+0x61/0x290 kernel/fork.c:499
dup_mmap kernel/fork.c:696 [inline]
dup_mm kernel/fork.c:1674 [inline]
copy_mm+0xc94/0x1f40 kernel/fork.c:1723
copy_process+0x1845/0x3d50 kernel/fork.c:2372
kernel_clone+0x226/0x8f0 kernel/fork.c:2784
__do_sys_clone kernel/fork.c:2927 [inline]
__se_sys_clone kernel/fork.c:2911 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2911
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: 0033:0x7fb8c4974f93
RSP: 002b:00007ffd35993598 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb8c4974f93
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055556609d7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000001362d R14: 0000000000013577 R15: 00007ffd35993720
rcu: rcu_preempt kthread starved for 4388 jiffies! g9353 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:25328 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
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+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 6.12.0-rc4-syzkaller-00189-g6b3f18a76be6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:spin_lock_bh include/linux/spinlock.h:356 [inline]
RIP: 0010:rt_add_uncached_list net/ipv4/route.c:1494 [inline]
RIP: 0010:rt_set_nexthop+0x1c3/0xa50 net/ipv4/route.c:1596
Code: e1 75 4c 8d b8 c0 05 04 00 49 8d be 80 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 74 a3 dd f7 4d 89 be 80 00 00 00 <4c> 89 ff e8 65 a9 af 01 4c 89 34 24 49 8d 6e 70 4d 8d 67 40 4d 8d
RSP: 0018:ffffc900001e6960 EFLAGS: 00000246
RAX: 1ffff1103cfa61f0 RBX: 0000000000000000 RCX: ffff88801d2e8000
RDX: 0000000000000100 RSI: 000000000100007f RDI: ffff8881e7d30f80
RBP: ffffc900001e6aa0 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8881e7d30f9a R11: ffffed103cfa61f5 R12: dffffc0000000000
R13: 000000000100007f R14: ffff8881e7d30f00 R15: ffff8880b87405c0
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4c50f062d8 CR3: 000000007860a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__mkroute_output net/ipv4/route.c:2599 [inline]
ip_route_output_key_hash_rcu+0x17d2/0x2390 net/ipv4/route.c:2795
ip_route_output_key_hash+0x193/0x2b0 net/ipv4/route.c:2624
__ip_route_output_key include/net/route.h:141 [inline]
ip_route_output_flow+0x29/0x140 net/ipv4/route.c:2852
ip_route_output_key include/net/route.h:151 [inline]
ip_route_me_harder+0x80d/0x1300 net/ipv4/netfilter.c:53
synproxy_send_tcp+0x356/0x6c0 net/netfilter/nf_synproxy_core.c:431
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:5666 [inline]
__netif_receive_skb+0x2bf/0x650 net/core/dev.c:5779
process_backlog+0x662/0x15b0 net/core/dev.c:6111
__napi_poll+0xcb/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+0x2c5/0x980 kernel/softirq.c:554
run_ksoftirqd+0xca/0x130 kernel/softirq.c:927
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