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): P1355/1:b..l rcu: (detected by 0, t=10502 jiffies, g=164185, q=1161 ncpus=1) task:syz.2.11803 state:R running task stack:26976 pid:1355 tgid:1352 ppid:5827 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5298 [inline] __schedule+0xfee/0x6120 kernel/sched/core.c:6911 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_next_frame+0xaf1/0x1ea0 arch/x86/kernel/unwind_orc.c:598 Code: 00 0f b6 41 05 4c 89 44 24 18 83 e0 07 3c 03 0f 84 8d 03 00 00 3c 04 0f 84 47 04 00 00 48 89 4c 24 20 3c 02 0f 85 4a f8 ff ff <49> 8d 76 f8 ba 08 00 00 00 4d 8d 7d 34 4c 89 ef 48 89 74 24 28 e8 RSP: 0018:ffffc90005716f00 EFLAGS: 00000246 RAX: 0000000000000002 RBX: 0000000000000001 RCX: ffffffff918600be RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90005716fb8 R08: ffffffff918600c2 R09: 0000000000000007 R10: 0000000000000200 R11: 0000000000016599 R12: ffffc90005716fc0 R13: ffffc90005716f70 R14: ffffc900057173e8 R15: ffffc900057172b8 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x162/0x1e0 mm/page_owner.c:165 __set_page_owner+0x8c/0x540 mm/page_owner.c:341 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x153/0x170 mm/page_alloc.c:1889 prep_new_page mm/page_alloc.c:1897 [inline] get_page_from_freelist+0x111d/0x3140 mm/page_alloc.c:3962 __alloc_frozen_pages_noprof+0x27c/0x2ba0 mm/page_alloc.c:5250 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2484 folio_alloc_mpol_noprof+0x36/0x340 mm/mempolicy.c:2503 vma_alloc_folio_noprof+0xed/0x1d0 mm/mempolicy.c:2538 folio_prealloc mm/memory.c:1204 [inline] alloc_anon_folio mm/memory.c:5209 [inline] do_anonymous_page+0xb3a/0x1fb0 mm/memory.c:5266 do_pte_missing mm/memory.c:4475 [inline] handle_pte_fault mm/memory.c:6317 [inline] __handle_mm_fault+0x1d42/0x2b60 mm/memory.c:6455 handle_mm_fault+0x36d/0xa20 mm/memory.c:6624 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0xf9c/0x34d0 mm/gup.c:1428 populate_vma_page_range+0x267/0x3f0 mm/gup.c:1860 __mm_populate+0x107/0x3a0 mm/gup.c:1963 mm_populate include/linux/mm.h:3894 [inline] vm_mmap_pgoff+0x37f/0x470 mm/util.c:586 ksys_mmap_pgoff+0xe1/0x650 mm/mmap.c:605 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f884f99c799 RSP: 002b:00007f8850943028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f884fc15fa0 RCX: 00007f884f99c799 RDX: 00000000000000df RSI: 0000000000400008 RDI: 0000000000000000 RBP: 00007f884fa32c99 R08: 0000000000000002 R09: 0000000000008000 R10: 0000000000009b72 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f884fc16038 R14: 00007f884fc15fa0 R15: 00007fffdc74cb48