rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6675/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=19201, q=808 ncpus=2)
task:syz.3.432       state:R  running task     stack:24016 pid:6675  tgid:6670  ppid:5095   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 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:variable_test_bit arch/x86/include/asm/bitops.h:227 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:239 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:571 [inline]
RIP: 0010:cpu_online include/linux/cpumask.h:1181 [inline]
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0xd4/0x550 kernel/locking/lockdep.c:5725
Code: 8b 05 bc 6c 91 7e 83 f8 08 0f 83 f4 02 00 00 89 c3 48 89 d8 48 c1 e8 06 48 8d 3c c5 28 49 ad 8f be 08 00 00 00 e8 0c 77 89 00 <48> 0f a3 1d ec e0 3a 0e 73 16 e8 1d ec 09 00 84 c0 75 0d 80 3d ad
RSP: 0018:ffffc90008f06fa0 EFLAGS: 00000256
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81726834
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fad4928
RBP: ffffc90008f070f0 R08: ffffffff8fad492f R09: 1ffffffff1f5a925
R10: dffffc0000000000 R11: fffffbfff1f5a926 R12: 1ffff920011e0dfc
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802ce2f200
 rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 rcu_read_lock include/linux/rcupdate.h:781 [inline]
 get_mem_cgroup_from_mm+0x55/0x2a0 mm/memcontrol.c:1265
 __mem_cgroup_charge+0x16/0x80 mm/memcontrol.c:7509
 mem_cgroup_charge include/linux/memcontrol.h:691 [inline]
 shmem_alloc_and_add_folio+0x394/0xdb0 mm/shmem.c:1677
 shmem_get_folio_gfp+0x82d/0x1f50 mm/shmem.c:2055
 shmem_fault+0x252/0x6f0 mm/shmem.c:2255
 __do_fault+0x137/0x460 mm/memory.c:4556
 do_read_fault mm/memory.c:4921 [inline]
 do_fault mm/memory.c:5051 [inline]
 do_pte_missing mm/memory.c:3897 [inline]
 handle_pte_fault+0x3d15/0x7090 mm/memory.c:5381
 __handle_mm_fault mm/memory.c:5524 [inline]
 handle_mm_fault+0x10df/0x1ba0 mm/memory.c:5689
 faultin_page mm/gup.c:1290 [inline]
 __get_user_pages+0x6ef/0x1590 mm/gup.c:1589
 populate_vma_page_range+0x264/0x330 mm/gup.c:2029
 __mm_populate+0x27a/0x460 mm/gup.c:2132
 mm_populate include/linux/mm.h:3469 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:578
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f388fd75bd9
RSP: 002b:00007f3890c02048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f388ff03f60 RCX: 00007f388fd75bd9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f388fde4e60 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f388ff03f60 R15: 00007ffc51cd6b68
 </TASK>
rcu: rcu_preempt kthread starved for 10399 jiffies! g19201 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:25328 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.10.0-rc7-syzkaller-00012-g34afb82a3c67 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 d4 03 00 48 f7 00 08 00 00 00 75 10 eb 07 0f 00 2d 55 5a a3 00 f3 0f 1e fa fb f4 <fa> e9 f4 23 2a 00 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffffff8e007ca8 EFLAGS: 00000246
RAX: ffffffff8e094680 RBX: ffff88801b6d2064 RCX: 0000000000075981
RDX: 0000000000000001 RSI: ffff88801b6d2000 RDI: ffff88801b6d2064
RBP: 000000000003a578 R08: ffff8880b9437ccb R09: 1ffff11017286f99
R10: dffffc0000000000 R11: ffffffff8b8618c0 R12: ffff888018367000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eacdc00
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcd47cda3c8 CR3: 000000005dfb0000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
 cpuidle_enter_state+0x114/0x480 drivers/cpuidle/cpuidle.c:267
 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x375/0x5d0 kernel/sched/idle.c:332
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:430
 rest_init+0x2dc/0x300 init/main.c:747
 start_kernel+0x47a/0x500 init/main.c:1103
 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
 x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
 common_startup_64+0x13e/0x147
 </TASK>