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): P5182/1:b..l rcu: (detected by 0, t=10503 jiffies, g=49873, q=932590 ncpus=2) task:klogd state:R running task stack:23720 pid:5182 tgid:5182 ppid:1 task_flags:0x400100 flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__update_page_owner_free_handle+0x176/0x470 mm/page_owner.c:275 Code: ff 48 c7 c0 40 b7 80 99 48 c1 e8 03 48 89 44 24 18 4c 89 64 24 20 66 83 7c 24 04 1f 0f 87 8e 01 00 00 e8 1d ed 90 ff 4c 89 f7 <4c> 8b 6c 24 28 4c 89 ee e8 6d ef 90 ff 4d 39 f5 0f 84 2c 02 00 00 RSP: 0018:ffffc90003bcf8d8 EFLAGS: 00000293 RAX: ffffffff822f26b3 RBX: dffffc0000000000 RCX: ffff88807e558000 RDX: 0000000000000000 RSI: 0000000000006c75 RDI: 0000000000000005 RBP: ffff88801ca1e484 R08: ffff88801ca1e447 R09: 1ffff11003943c88 R10: dffffc0000000000 R11: ffffed1003943c89 R12: 000000000004ec71 R13: 000000000000143e R14: 0000000000000005 R15: ffff88801ca1e490 __reset_page_owner+0x85/0x1f0 mm/page_owner.c:312 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906 __slab_free+0x2e7/0x390 mm/slub.c:5966 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4974 [inline] slab_alloc_node mm/slub.c:5284 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5762 kmalloc_noprof include/linux/slab.h:957 [inline] syslog_print+0xd2/0x590 kernel/printk/printk.c:1580 do_syslog+0x544/0x760 kernel/printk/printk.c:1758 __do_sys_syslog kernel/printk/printk.c:1850 [inline] __se_sys_syslog kernel/printk/printk.c:1848 [inline] __x64_sys_syslog+0x7c/0x90 kernel/printk/printk.c:1848 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc8ce6a0a37 RSP: 002b:00007ffc80af8cd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000067 RAX: ffffffffffffffda RBX: 00007fc8ce840490 RCX: 00007fc8ce6a0a37 RDX: 00000000000003ff RSI: 00007fc8ce840490 RDI: 0000000000000002 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000206 R12: 00007fc8ce840490 R13: 00007fc8ce81ddfe R14: 00007fc8ce840520 R15: 00007fc8ce840520