rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5806/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=18173, q=393 ncpus=2)
task:syz-executor    state:R  running task     stack:20272 pid:5806  tgid:5806  ppid:5804   task_flags:0x400100 flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5366 [inline]
 __schedule+0x1ac3/0x5090 kernel/sched/core.c:6747
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7069
 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:__kernel_text_address+0x5/0x40 kernel/extable.c:78
Code: c3 48 c7 c7 80 7e 3b 90 e8 28 3d 9c 00 eb b5 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 53 <48> 89 fb e8 43 00 00 00 85 c0 0f 95 c0 48 c7 c1 00 70 98 91 48 39
RSP: 0018:ffffc9000404f730 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000404f7a8 RCX: 0000000080000000
RDX: dffffc0000000000 RSI: ffffc90004048000 RDI: ffffffff822915aa
RBP: ffffc9000404f7f0 R08: ffffc9000404fc28 R09: 0000000000000000
R10: ffffc9000404f7b0 R11: fffff52000809ef8 R12: ffff888029ab3c00
R13: ffffffff81aed9f0 R14: dffffc0000000000 R15: 1ffff92000809ef5
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369
 arch_stack_walk+0xff/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfc/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x79/0x440 mm/page_owner.c:297
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 discard_slab mm/slub.c:2707 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3176
 put_cpu_partial+0x17e/0x250 mm/slub.c:3251
 __slab_free+0x294/0x390 mm/slub.c:4503
 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:250 [inline]
 slab_post_alloc_hook mm/slub.c:4138 [inline]
 slab_alloc_node mm/slub.c:4187 [inline]
 __do_kmalloc_node mm/slub.c:4317 [inline]
 __kmalloc_noprof+0x238/0x4d0 mm/slub.c:4330
 kmalloc_noprof include/linux/slab.h:906 [inline]
 kmalloc_array_noprof include/linux/slab.h:945 [inline]
 alloc_pipe_info+0x1ff/0x4d0 fs/pipe.c:816
 get_pipe_inode fs/pipe.c:895 [inline]
 create_pipe_files+0x86/0x7d0 fs/pipe.c:927
 __do_pipe_flags+0x48/0x2d0 fs/pipe.c:984
 do_pipe2+0xd6/0x310 fs/pipe.c:1035
 __do_sys_pipe2 fs/pipe.c:1053 [inline]
 __se_sys_pipe2 fs/pipe.c:1051 [inline]
 __x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1051
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbe0258be89
RSP: 002b:00007ffc7d482878 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
RAX: ffffffffffffffda RBX: 00005555593cdc70 RCX: 00007fbe0258be89
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00007ffc7d482888
RBP: 00007ffc7d482c40 R08: 0000000000000007 R09: 00005555593cb5c0
R10: b9b45b26c92340ab R11: 0000000000000246 R12: 00007ffc7d482ca0
R13: 00005555593cf390 R14: 00007ffc7d4829c0 R15: 00005555593cd6a0
 </TASK>
rcu: rcu_preempt kthread starved for 6810 jiffies! g18173 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:26976 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5366 [inline]
 __schedule+0x1ac3/0x5090 kernel/sched/core.c:6747
 __schedule_loop kernel/sched/core.c:6824 [inline]
 schedule+0x163/0x360 kernel/sched/core.c:6839
 schedule_timeout+0x15b/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111