rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10727/2:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=54909, q=317 ncpus=2)
task:syz-executor.1  state:R  running task     stack:25264 pid:10727 tgid:10716 ppid:10022  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5249 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6916
 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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5820
Code: 2b 00 74 08 4c 89 f7 e8 6a 82 8a 00 f6 44 24 61 02 0f 85 85 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:ffffc9000d0975a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001a12ec0 RCX: 3909d91a19bf6f00
RDX: dffffc0000000000 RSI: ffffffff8bcada20 RDI: ffffffff8c206c80
RBP: ffffc9000d0976f0 R08: ffffffff92fe4747 R09: 1ffffffff25fc8e8
R10: dffffc0000000000 R11: fffffbfff25fc8e9 R12: 1ffff92001a12ebc
R13: dffffc0000000000 R14: ffffc9000d097600 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
 rcu_read_lock include/linux/rcupdate.h:845 [inline]
 percpu_ref_tryget_many include/linux/percpu-refcount.h:241 [inline]
 percpu_ref_tryget+0x31/0x180 include/linux/percpu-refcount.h:266
 css_tryget include/linux/cgroup_refcnt.h:45 [inline]
 get_mem_cgroup_from_mm+0x103/0x2a0 mm/memcontrol.c:1271
 __mem_cgroup_charge+0x16/0x80 mm/memcontrol.c:7544
 mem_cgroup_charge include/linux/memcontrol.h:692 [inline]
 shmem_alloc_and_add_folio+0x85a/0x14e0 mm/shmem.c:1792
 shmem_get_folio_gfp+0xa22/0x2660 mm/shmem.c:2188
 shmem_get_folio mm/shmem.c:2293 [inline]
 shmem_write_begin+0x170/0x4d0 mm/shmem.c:2898
 generic_perform_write+0x322/0x640 mm/filemap.c:4016
 shmem_file_write_iter+0xfc/0x120 mm/shmem.c:3074
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa72/0xc90 fs/read_write.c:590
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 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: 0033:0x7fec49a7bdef
RSP: 002b:00007fec4a7cde80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000013bd7ef RCX: 00007fec49a7bdef
RDX: 00000000013bd7ef RSI: 00007fec3f800000 RDI: 000000000000000c
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000054f3
R10: 000000002000ab42 R11: 0000000000000293 R12: 000000000000000c
R13: 00007fec4a7cdf80 R14: 00007fec4a7cdf40 R15: 00007fec3f800000
 </TASK>
rcu: rcu_preempt kthread starved for 10532 jiffies! g54909 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:26576 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5249 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
 __schedule_loop kernel/sched/core.c:6671 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6686
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2020
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2222
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.10.0-rc4-next-20240621-syzkaller #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:92 [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 00 d6 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d d5 66 9c 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff8880176b0000 RBX: ffff88801928e864 RCX: 0000000000d310a9
RDX: 0000000000000001 RSI: ffff88801928e800 RDI: ffff88801928e864
RBP: 000000000003a6b8 R08: ffff8880b9537ccb R09: 1ffff110172a6f99
R10: dffffc0000000000 R11: ffffffff8b8d9ba0 R12: ffff88801a793800
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8ead7e20
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006b000 CR3: 000000002d2da000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
 cpuidle_enter_state+0x112/0x480 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:230 [inline]
 do_idle+0x375/0x5d0 kernel/sched/idle.c:326
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
 start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
 common_startup_64+0x13e/0x147
 </TASK>