rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P14173/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=79985, q=441 ncpus=2)
task:syz-executor.1 state:R running task stack:24400 pid:14173 tgid:14172 ppid:12623 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 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:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:debug_lockdep_rcu_enabled+0x18/0x40 kernel/rcu/update.c:321
Code: 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d a7 36 2e 04 00 74 1e 83 3d e6 67 2e 04 00 74 15 <65> 48 8b 0c 25 c0 d4 03 00 31 c0 83 b9 dc 0a 00 00 00 0f 94 c0 c3
RSP: 0018:ffffc90009d27498 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff920013a4e94 RCX: ffff888021283c00
RDX: dffffc0000000000 RSI: ffffffff8bcacd00 RDI: ffff888059afda00
RBP: ffffc90009d27530 R08: ffffffff92f74587 R09: 1ffffffff25ee8b0
R10: dffffc0000000000 R11: fffffbfff25ee8b1 R12: 0000000000000000
R13: dffffc0000000000 R14: dffffc0000000000 R15: dffffc0000000000
rcu_read_lock_held_common kernel/rcu/update.c:105 [inline]
rcu_read_lock_sched_held+0x63/0x130 kernel/rcu/update.c:124
task_css include/linux/cgroup.h:434 [inline]
mem_cgroup_from_task+0x4d/0x120 mm/memcontrol.c:1214
get_mem_cgroup_from_mm+0xd7/0x2a0 mm/memcontrol.c:1267
__mem_cgroup_charge+0x16/0x80 mm/memcontrol.c:7509
mem_cgroup_charge include/linux/memcontrol.h:691 [inline]
folio_prealloc+0x52/0x170 mm/memory.c:1056
alloc_anon_folio mm/memory.c:4403 [inline]
do_anonymous_page mm/memory.c:4461 [inline]
do_pte_missing mm/memory.c:3901 [inline]
handle_pte_fault+0x2f4a/0x7130 mm/memory.c:5380
__handle_mm_fault mm/memory.c:5523 [inline]
handle_mm_fault+0xfb0/0x19d0 mm/memory.c:5688
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:3464 [inline]
__do_sys_mlockall mm/mlock.c:777 [inline]
__se_sys_mlockall+0x3e3/0x4d0 mm/mlock.c:753
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: 0033:0x7f8ae087cea9
RSP: 002b:00007f8ae03ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000097
RAX: ffffffffffffffda RBX: 00007f8ae09b3f80 RCX: 00007f8ae087cea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 00007f8ae08ebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8ae09b3f80 R15: 00007ffea3f5bc28
rcu: rcu_preempt kthread starved for 10538 jiffies! g79985 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:26448 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 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_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:__schedule_loop kernel/sched/core.c:6821 [inline]
RIP: 0010:schedule+0x13a/0x320 kernel/sched/core.c:6837
Code: 00 00 00 e8 b8 ee ff f8 48 c7 c7 60 10 1f 8e 4c 89 f6 e8 e9 64 eb f5 48 89 eb 48 c1 eb 03 eb 0a 48 f7 45 00 08 00 00 00 74 2c 01 00 00 00 e8 ec 72 de f5 31 ff e8 d5 b4 ff ff bf 01 00 00 00
RSP: 0018:ffffc90000167b68 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff11002e59000 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcabb80 RDI: 0000000000000001
RBP: ffff8880172c8000 R08: ffffffff8fac246f R09: 1ffffffff1f5848d
R10: dffffc0000000000 R11: fffffbfff1f5848e R12: dffffc0000000000
R13: 1ffff9200002cf74 R14: ffffffff8b872520 R15: ffff8880172c9278
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+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
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: 14206 Comm: syz-executor.2 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline]
RIP: 0010:lock_release+0x125/0x9f0 kernel/locking/lockdep.c:5767
Code: 7e 85 c0 0f 85 23 05 00 00 65 48 8b 04 25 c0 d4 03 00 48 89 44 24 18 48 8d 98 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 d8 05 00 00 83 3b 00 0f 85 f1 04 00 00 4c 8d b4 24 b0
RSP: 0018:ffffc9000d80fa20 EFLAGS: 00000807
RAX: 0000000000000000 RBX: ffff8880213746dc RCX: ffffffff81728b50
RDX: 0000000000000000 RSI: ffffffff8c1f2460 RDI: ffffffff8c1f2420
RBP: ffffc9000d80fb60 R08: ffffffff8fac246f R09: 1ffffffff1f5848d
R10: dffffc0000000000 R11: fffffbfff1f5848e R12: 1ffff92001b01f50
R13: ffffffff815d0d60 R14: 0000000100000000 R15: dffffc0000000000
FS: 00007f9b14a096c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b14a29f80 CR3: 000000006a33a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:157 [inline]
_raw_spin_unlock_irq+0x16/0x50 kernel/locking/spinlock.c:202
spin_unlock_irq include/linux/spinlock.h:401 [inline]
__set_current_blocked+0x310/0x380 kernel/signal.c:3099
set_current_blocked kernel/signal.c:3083 [inline]
signal_delivered kernel/signal.c:2945 [inline]
signal_setup_done+0x39e/0x600 kernel/signal.c:2957
handle_signal arch/x86/kernel/signal.c:285 [inline]
arch_do_signal_or_restart+0x51f/0x860 arch/x86/kernel/signal.c:312
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9b13ca4630
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 5a 9b 04 00 e8 35 78 fa ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007f9b14a08bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007f9b13db4058 RCX: 00007f9b13c7cea9
RDX: 00007f9b14a08bc0 RSI: 00007f9b14a08cf0 RDI: 0000000000000021
RBP: 00007f9b13db4050 R08: 00007f9b14a096c0 R09: 00007f9b14a096c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9b13db405c
R13: 000000000000006e R14: 00007ffdeebe1640 R15: 00007ffdeebe1728