rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P22163/1:b..l P20250/1:b..l
(detected by 0, t=10503 jiffies, g=97437, q=70 ncpus=2)
task:kworker/0:16 state:R running task stack:24416 pid:20250 ppid:2 flags:0x00004000
Workqueue: events_power_efficient gc_worker
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 af a2 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90015f7f9a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92002beff40 RCX: 1ffff92002befee0
RDX: dffffc0000000000 RSI: ffffffff8aebf620 RDI: ffffffff8b3cf3c0
RBP: ffffc90015f7fae8 R08: dffffc0000000000 R09: fffffbfff2091c45
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92002beff3c
R13: dffffc0000000000 R14: ffffc90015f7fa00 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
rcu_read_lock include/linux/rcupdate.h:747 [inline]
gc_worker+0x29b/0x1530 net/netfilter/nf_conntrack_core.c:1501
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
task:syz-executor.2 state:R running task stack:26248 pid:22163 ppid:20419 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 af a2 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0000:ffffc9000f6f7100 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001edee2c RCX: 1ffff92001ededcc
RDX: dffffc0000000000 RSI: ffffffff8aebf620 RDI: ffffffff8b3cf3c0
RBP: ffffc9000f6f7250 R08: dffffc0000000000 R09: fffffbfff2091c45
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001edee28
R13: dffffc0000000000 R14: ffffc9000f6f7160 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
rcu_read_lock include/linux/rcupdate.h:747 [inline]
is_bpf_text_address+0x3e/0x2a0 kernel/bpf/core.c:718
kernel_text_address+0x9f/0xd0 kernel/extable.c:125
__kernel_text_address+0x9/0x40 kernel/extable.c:79
unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323
arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:127
__set_page_owner+0x26/0x390 mm/page_owner.c:190
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513
prep_new_page mm/page_alloc.c:2520 [inline]
get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279
__alloc_pages+0x28d/0x770 mm/page_alloc.c:5545
__folio_alloc+0xf/0x30 mm/page_alloc.c:5577
vma_alloc_folio+0x486/0x990 mm/mempolicy.c:2243
alloc_page_vma include/linux/gfp.h:284 [inline]
wp_page_copy+0x291/0x18c0 mm/memory.c:3134
handle_pte_fault mm/memory.c:5011 [inline]
__handle_mm_fault mm/memory.c:5135 [inline]
handle_mm_fault+0x2525/0x5340 mm/memory.c:5256
do_user_addr_fault arch/x86/mm/fault.c:1380 [inline]
handle_page_fault arch/x86/mm/fault.c:1471 [inline]
exc_page_fault+0x26f/0x660 arch/x86/mm/fault.c:1527
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f72ad427189
RSP: 002b:00007ffed3b0b510 EFLAGS: 00010246
RAX: 0000001b2fc60000 RBX: 0000000000600000 RCX: 00007f72ad47cb23
RDX: 0000000000000003 RSI: 00000000005c0000 RDI: 0000001b2fc60000
RBP: 0000001b2fc60000 R08: 0000000000000004 R09: 0000000000040000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
rcu: rcu_preempt kthread starved for 10577 jiffies! g97437 f0x0 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:26680 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x2d2/0x1120 kernel/rcu/tree.c:1674
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1873
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22155 Comm: syz-executor.1 Not tainted 6.1.65-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:restore_regs_and_return_to_kernel+0x8/0x22
Code: 89 e7 65 48 8b 24 25 04 a0 00 00 ff 77 30 ff 77 28 ff 77 20 ff 77 18 ff 77 10 ff 37 5f 0f 01 f8 eb 1b 41 5f 41 5e 41 5d 41 5c <5d> 5b 41 5b 41 5a 41 59 41 58 58 59 5a 5e 5f 48 83 c4 08 f6 44 24
RSP: 0018:ffffc9000e4dfaa8 EFLAGS: 00000046
RAX: 36b3d516b9e29d00 RBX: 0000000000000000 RCX: ffffffff91c86103
RDX: dffffc0000000000 RSI: ffffffff8aebe4a0 RDI: ffffffff8b3cf3c0
RBP: 0000000000000000 R08: ffffffff815ba7a6 R09: ffffed10024e4981
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110101742e3
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888080ba1718
FS: 0000555556e57480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd9c41ddd58 CR3: 0000000076e07000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 41 b8 f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 fe 80 d6 f6 48 89 df e8 66 be d7 f6 e8 a1 66 fd f6 fb bf 01 00 00 00 46 4d ca f6 65 8b 05 f7 7e 6e 75 85 c0 74 02 5b c3 e8 34 9d 6c
RSP: 0018:ffffc9000e4dfb30 EFLAGS: 00000286
RAX: 36b3d516b9e29d00 RBX: ffff888080ba1280 RCX: ffffffff91c86103
RDX: dffffc0000000000 RSI: ffffffff8aebe4a0 RDI: 0000000000000001
RBP: ffffc9000e4dfc70 R08: dffffc0000000000 R09: ffffed1010174251
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110101742e3
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888080ba1718