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): P22228/1:b..l rcu: (detected by 0, t=10502 jiffies, g=198849, q=1230 ncpus=1) task:syz.6.3799 state:R running task stack:26792 pid:22228 tgid:22228 ppid:12460 task_flags:0x40004c flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5510 [inline] __schedule+0x125c/0x6730 kernel/sched/core.c:7234 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7556 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa00 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:unwind_next_frame+0x1673/0x2090 arch/x86/kernel/unwind_orc.c:694 Code: 00 00 fc ff df 80 3c 02 00 0f 84 42 f9 ff ff 4c 89 e7 e8 50 73 c2 00 e9 35 f9 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8b 14 24 <48> c1 ea 03 80 3c 02 00 0f 85 29 06 00 00 49 8d 7d 08 49 8b 5d 38 RSP: 0018:ffffc9000e0af010 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff91d1d382 RDX: ffffc9000e0af0b8 RSI: ffffc9000e0af9b0 RDI: ffffc9000e0af0c0 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000007 R10: 0000000000000200 R11: 0000000000015ee1 R12: ffffc9000e0af0d0 R13: ffffc9000e0af080 R14: ffffc9000e0af9e0 R15: ffffc9000e0af0b4 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 __reset_page_owner+0x84/0x190 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1406 [inline] free_unref_folios+0xa44/0x1710 mm/page_alloc.c:3011 folios_put_refs+0x585/0xaa0 mm/swap.c:1057 free_pages_and_swap_cache+0x22d/0x3b0 mm/swap_state.c:586 __tlb_batch_free_encoded_pages+0xe9/0x280 mm/mmu_gather.c:138 tlb_batch_pages_flush mm/mmu_gather.c:151 [inline] tlb_flush_mmu_free mm/mmu_gather.c:417 [inline] tlb_flush_mmu+0xe9/0x590 mm/mmu_gather.c:424 zap_pte_range mm/memory.c:1973 [inline] zap_pmd_range mm/memory.c:2020 [inline] zap_pud_range mm/memory.c:2048 [inline] zap_p4d_range mm/memory.c:2069 [inline] __zap_vma_range+0x223f/0x4a30 mm/memory.c:2109 unmap_vmas+0x299/0x5f0 mm/memory.c:2178 exit_mmap+0x1ef/0xa00 mm/mmap.c:1300 __mmput+0x12a/0x410 kernel/fork.c:1187 mmput+0x67/0x80 kernel/fork.c:1210 exit_mm kernel/exit.c:615 [inline] do_exit+0x8b1/0x2ae0 kernel/exit.c:997 do_group_exit+0xd5/0x2a0 kernel/exit.c:1152 __do_sys_exit_group kernel/exit.c:1163 [inline] __se_sys_exit_group kernel/exit.c:1161 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1161 x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f46b5b9e019 RSP: 002b:00007ffd0dd42468 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f46b5b9e019 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffd0dd424cc R08: 0000000000000000 R09: 00000000000927c0 R10: 00007f46b5e26038 R11: 0000000000000246 R12: 00000000000001d1 R13: 00000000000927c0 R14: 0000000000186eb3 R15: 00007ffd0dd42520