rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P23338/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=200521, q=95 ncpus=2)
task:syz-executor.3  state:R  running task     stack:27168 pid:23338 tgid:23337 ppid:15394  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x3ba/0x6c0 kernel/locking/lockdep.c:5762
Code: 7e 83 f8 01 0f 85 f5 01 00 00 9c 58 f6 c4 02 0f 85 e0 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c5 48 c7 45 00 00 00 00 00 c7 45 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90003277540 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 24349432358cc39f RCX: ffffc90003277590
RDX: 1ffff110042f78da RSI: ffffffff8b2cae60 RDI: ffffffff8b8feec0
RBP: 1ffff9200064eeaa R08: 0000000000000000 R09: fffffbfff1fc88ba
R10: ffffffff8fe445d7 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000002 R14: ffff8880217bc6d8 R15: ffff8880217bbc00
 rcu_lock_release include/linux/rcupdate.h:339 [inline]
 rcu_read_unlock+0x1c/0x60 include/linux/rcupdate.h:812
 percpu_ref_get_many include/linux/percpu-refcount.h:209 [inline]
 percpu_ref_get include/linux/percpu-refcount.h:222 [inline]
 css_get include/linux/cgroup_refcnt.h:11 [inline]
 css_get include/linux/cgroup_refcnt.h:8 [inline]
 mem_cgroup_commit_charge+0x1bf/0x2d0 mm/memcontrol.c:3132
 charge_memcg mm/memcontrol.c:7501 [inline]
 __mem_cgroup_charge+0xb0/0x280 mm/memcontrol.c:7512
 mem_cgroup_charge include/linux/memcontrol.h:691 [inline]
 shmem_alloc_and_add_folio+0x1dd/0x790 mm/shmem.c:1677
 shmem_get_folio_gfp+0x687/0x13d0 mm/shmem.c:2055
 shmem_fault+0x205/0xaf0 mm/shmem.c:2255
 __do_fault+0x10a/0x490 mm/memory.c:4562
 do_read_fault mm/memory.c:4926 [inline]
 do_fault mm/memory.c:5056 [inline]
 do_pte_missing mm/memory.c:3903 [inline]
 handle_pte_fault mm/memory.c:5380 [inline]
 __handle_mm_fault+0x39e2/0x53f0 mm/memory.c:5523
 handle_mm_fault+0x476/0xa00 mm/memory.c:5688
 faultin_page mm/gup.c:1290 [inline]
 __get_user_pages+0x473/0x1490 mm/gup.c:1589
 populate_vma_page_range+0x27f/0x3a0 mm/gup.c:2029
 __mm_populate+0x1d6/0x380 mm/gup.c:2132
 mm_populate include/linux/mm.h:3464 [inline]
 vm_mmap_pgoff+0x293/0x360 mm/util.c:578
 ksys_mmap_pgoff+0x7d/0x5d0 mm/mmap.c:1433
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56ffc7cee9
RSP: 002b:00007f5700a150c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f56ffdabf80 RCX: 00007f56ffc7cee9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f56ffcc949e R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f56ffdabf80 R15: 00007ffea4c46678
 </TASK>
rcu: rcu_preempt kthread starved for 10543 jiffies! g200521 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:27680 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 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:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 23327 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 65 48 8b 15 e4 ec 75 7e 65 8b 05 e5 ec 75 7e a9 00 01
RSP: 0018:ffffc900032a7778 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff888022244120 RCX: 1ffff11017267ef3
RDX: 1ffff11004448824 RSI: ffffffff8ad9903c RDI: ffff8880b933f570
RBP: ffff8880b933f568 R08: ffff8880b933f790 R09: ffffed1017267eb2
R10: ffff8880b933f593 R11: 0000000000000001 R12: ffff8880b933f568
R13: ffff888022244120 R14: ffff8880b933f568 R15: ffff8880b933f568
FS:  0000555580b63480(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30b3a000 CR3: 000000007d8d8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 plist_check_prev_next+0x12a/0x1a0 lib/plist.c:35
 plist_check_list lib/plist.c:52 [inline]
 plist_check_head+0xcc/0x140 lib/plist.c:60
 plist_del+0x29/0x480 lib/plist.c:114
 enqueue_pushable_task+0x29/0x3b0 kernel/sched/rt.c:389
 put_prev_task kernel/sched/sched.h:2329 [inline]
 put_prev_task_balance kernel/sched/core.c:6008 [inline]
 __pick_next_task kernel/sched/core.c:6050 [inline]
 pick_next_task kernel/sched/core.c:6119 [inline]
 __schedule+0x3ca7/0x5d00 kernel/sched/core.c:6701
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:preempt_count_add+0x0/0x150 kernel/sched/core.c:5860
Code: 5d c3 cc cc cc cc e8 4f 85 8b 09 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 c7 c0 a0 fb b4 94 55 48 ba 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900032a7ae0 EFLAGS: 00000202
RAX: 000000000000400e RBX: ffff888040311e00 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b2cab60 RDI: 0000000000000001
RBP: ffffed10080623c0 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8fe445d7 R11: 0000000000000000 R12: ffff888040311e2c
R13: ffff888040311e00 R14: ffffffff81815931 R15: dffffc0000000000
 __schedule_loop kernel/sched/core.c:6821 [inline]
 schedule+0xe0/0x350 kernel/sched/core.c:6837
 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex kernel/futex/syscalls.c:160 [inline]
 __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe764a7cee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd402d4ba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000017c55f RCX: 00007fe764a7cee9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe764bac05c
RBP: 00007ffd402d4cb0 R08: 00007fe765709080 R09: 0000000000000bdf
R10: 00007ffd402d4c90 R11: 0000000000000246 R12: 000000000017c591
R13: 00007fe764bac05c R14: 00007ffd402d4c90 R15: 0000000000000032
 </TASK>