rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P3556/2:b..l
(detected by 1, t=10502 jiffies, g=8889, q=72 ncpus=2)
task:syz-executor state:R running task stack:19864 pid:3556 ppid:3544 flags:0x00004000
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:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 1f ae 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:ffffc9000397f0e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200072fe28 RCX: 1ffff9200072fdc8
RDX: dffffc0000000000 RSI: ffffffff8aec13c0 RDI: ffffffff8b3d4760
RBP: ffffc9000397f230 R08: dffffc0000000000 R09: fffffbfff2093845
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200072fe24
R13: dffffc0000000000 R14: ffffc9000397f140 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
rcu_read_lock include/linux/rcupdate.h:791 [inline]
percpu_ref_tryget_many include/linux/percpu-refcount.h:241 [inline]
percpu_ref_tryget+0x31/0x170 include/linux/percpu-refcount.h:266
css_tryget include/linux/cgroup.h:357 [inline]
get_mem_cgroup_from_objcg+0xc8/0x150 include/linux/memcontrol.h:523
obj_cgroup_charge_pages mm/memcontrol.c:3094 [inline]
__memcg_kmem_charge_page+0x233/0x3b0 mm/memcontrol.c:3122
__alloc_pages+0x2c4/0x770 mm/page_alloc.c:5568
__get_free_pages mm/page_alloc.c:5601 [inline]
get_zeroed_page+0x13/0x30 mm/page_alloc.c:5610
__pud_alloc_one include/asm-generic/pgalloc.h:156 [inline]
pud_alloc_one include/asm-generic/pgalloc.h:171 [inline]
__pud_alloc+0x8b/0x220 mm/memory.c:5447
pud_alloc include/linux/mm.h:2333 [inline]
copy_pud_range mm/memory.c:1194 [inline]
copy_p4d_range mm/memory.c:1238 [inline]
copy_page_range+0x41fa/0x4660 mm/memory.c:1336
dup_mmap kernel/fork.c:696 [inline]
dup_mm kernel/fork.c:1540 [inline]
copy_mm+0xf42/0x1990 kernel/fork.c:1589
copy_process+0x19d5/0x4060 kernel/fork.c:2267
kernel_clone+0x222/0x920 kernel/fork.c:2682
__do_sys_clone kernel/fork.c:2823 [inline]
__se_sys_clone kernel/fork.c:2807 [inline]
__x64_sys_clone+0x231/0x280 kernel/fork.c:2807
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f350a56c4d3
RSP: 002b:00007ffe2ecfc668 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f350a56c4d3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055555675a7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10163 jiffies! g8889 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:27160 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:1965
rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.97-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:113 [inline]
RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:572
Code: 34 f5 f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 a4 f3 fb f6 0f 1f 44 00 00 e8 fa 30 f5 f6 0f 00 2d 83 03 b2 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 4b b4 4c f7
RSP: 0018:ffffc90000177b80 EFLAGS: 000002d3
RAX: ffffffff8a956316 RBX: 0000000000000000 RCX: ffff88813fee1dc0
RDX: 0000000000000000 RSI: ffffffff8aec0240 RDI: ffffffff8b3d4760
RBP: ffffc90000177c10 R08: ffffffff8a9562f8 R09: ffffed1027fdc3b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200002ef70
R13: ffff8880153fe004 R14: ffffc90000177ba0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555cd15c8 CR3: 0000000073afd000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:709
cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239
cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3ce/0x680 kernel/sched/idle.c:303
cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:401
start_secondary+0xe4/0xf0 arch/x86/kernel/smpboot.c:281
secondary_startup_64_no_verify+0xcf/0xdb