rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5385/1:b..l P5406/1:b..l P5401/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=8825, q=930 ncpus=2)
task:syz.2.27 state:R running task stack:24960 pid:5401 tgid:5397 ppid:5219 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
follow_page_pte+0xeb2/0x1ee0 mm/gup.c:920
follow_pud_mask mm/gup.c:1006 [inline]
follow_p4d_mask mm/gup.c:1023 [inline]
follow_page_mask+0x739/0x2f90 mm/gup.c:1066
__get_user_pages+0x67b/0x16a0 mm/gup.c:1491
__get_user_pages_locked mm/gup.c:1760 [inline]
__gup_longterm_locked+0xed7/0x17d0 mm/gup.c:2489
pin_user_pages_remote+0x132/0x1f0 mm/gup.c:3528
process_vm_rw_single_vec mm/process_vm_access.c:106 [inline]
process_vm_rw_core mm/process_vm_access.c:216 [inline]
process_vm_rw+0x716/0xcf0 mm/process_vm_access.c:284
__do_sys_process_vm_readv mm/process_vm_access.c:296 [inline]
__se_sys_process_vm_readv mm/process_vm_access.c:292 [inline]
__x64_sys_process_vm_readv+0xe0/0x100 mm/process_vm_access.c:292
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: 0033:0x7f71f93779f9
RSP: 002b:00007f71f8dde038 EFLAGS: 00000246 ORIG_RAX: 0000000000000136
RAX: ffffffffffffffda RBX: 00007f71f9506058 RCX: 00007f71f93779f9
RDX: 0000000000000002 RSI: 0000000020008400 RDI: 000000000000001b
RBP: 00007f71f93e58ee R08: 0000000000000286 R09: 0000000000000000
R10: 0000000020008640 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f71f9506058 R15: 00007ffc73dbd828
task:syz.0.30 state:R running task stack:24504 pid:5406 tgid:5405 ppid:5218 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
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_is_held_type+0x13b/0x190
Code: 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc900044f73d8 EFLAGS: 00000206
RAX: 8435652781b4e800 RBX: 0000000000000000 RCX: 0000000080000000
RDX: ffffc90009209000 RSI: ffffffff8beae6e0 RDI: ffffffff8c3f8cc0
RBP: 0000000000000002 R08: ffffffff81de5759 R09: 1ffffffff269dd00
R10: dffffc0000000000 R11: fffffbfff269dd01 R12: 0000000000000246
R13: ffff888016743c00 R14: 00000000ffffffff R15: ffffffff8e765ee8
lock_is_held include/linux/lockdep.h:249 [inline]
task_css include/linux/cgroup.h:433 [inline]
mem_cgroup_from_task+0x62/0x120 mm/memcontrol.c:890
count_memcg_event_mm+0x195/0x420 include/linux/memcontrol.h:1019
mm_account_fault mm/memory.c:5699 [inline]
handle_mm_fault+0x149a/0x1880 mm/memory.c:5859
faultin_page mm/gup.c:1194 [inline]
__get_user_pages+0x6ec/0x16a0 mm/gup.c:1493
__get_user_pages_locked mm/gup.c:1760 [inline]
__gup_longterm_locked+0xed7/0x17d0 mm/gup.c:2489
pin_user_pages_remote+0x132/0x1f0 mm/gup.c:3528
process_vm_rw_single_vec mm/process_vm_access.c:106 [inline]
process_vm_rw_core mm/process_vm_access.c:216 [inline]
process_vm_rw+0x716/0xcf0 mm/process_vm_access.c:284
__do_sys_process_vm_readv mm/process_vm_access.c:296 [inline]
__se_sys_process_vm_readv mm/process_vm_access.c:292 [inline]
__x64_sys_process_vm_readv+0xe0/0x100 mm/process_vm_access.c:292
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: 0033:0x7fac349779f9
RSP: 002b:00007fac3573a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000136
RAX: ffffffffffffffda RBX: 00007fac34b05f80 RCX: 00007fac349779f9
RDX: 0000000000000002 RSI: 0000000020008400 RDI: 000000000000000f
RBP: 00007fac349e58ee R08: 0000000000000286 R09: 0000000000000000
R10: 0000000020008640 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fac34b05f80 R15: 00007fffd0309b68
task:syz.3.25 state:R running task stack:24672 pid:5385 tgid:5385 ppid:5217 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
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:jhash2 include/linux/jhash.h:129 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:514 [inline]
RIP: 0010:stack_depot_save_flags+0x7d/0x830 lib/stackdepot.c:614
Code: cd 7b 71 f5 75 83 fe 04 72 75 44 89 f3 44 89 f0 4c 8b 44 24 08 4c 89 c2 03 02 03 5a 04 44 03 72 08 44 89 f7 c1 c7 04 44 29 f0 <31> c7 41 01 de 29 fb 89 fd c1 c5 06 31 dd 44 01 f7 89 e9 c1 c1 08
RSP: 0018:ffffc900041d7340 EFLAGS: 00000202
RAX: 00000000053aa4f2 RBX: 00000000f60ef17f RCX: 00000000cdfa21d8
RDX: ffffc900041d7404 RSI: 0000000000000013 RDI: 0000000089aec73a
RBP: 00000000d3f6c0f1 R08: ffffc900041d73e0 R09: 000000000000000e
R10: dffffc0000000000 R11: fffffbfff1fed366 R12: dffffc0000000000
R13: 1ffff9200083ae78 R14: 00000000a89aec73 R15: 1ffff110058a1470
save_stack+0x109/0x1f0 mm/page_owner.c:157
__reset_page_owner+0x75/0x3f0 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_folios+0x100f/0x1ac0 mm/page_alloc.c:2660
folios_put_refs+0x76e/0x860 mm/swap.c:1039
free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
__tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465
exit_mmap+0x44f/0xc80 mm/mmap.c:3425
__mmput+0x115/0x380 kernel/fork.c:1345
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x27f0 kernel/exit.c:869
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
__do_sys_exit_group kernel/exit.c:1042 [inline]
__se_sys_exit_group kernel/exit.c:1040 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040
x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
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: 0033:0x7fb3fef779f9
RSP: 002b:00007ffd1c87fc28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb3fef779f9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffd1c87fc7c R08: 00007ffd1c87fd0f R09: 0000000000016993
R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000032
R13: 0000000000016993 R14: 0000000000015bdf R15: 00007ffd1c87fcd0
rcu: rcu_preempt kthread starved for 10567 jiffies! g8825 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:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
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:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d7 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d e5 be 9b 00 f3 0f 1e fa fb f4 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: ffff888017af0000 RBX: ffff88801b6ce864 RCX: 00000000000dd751
RDX: 0000000000000001 RSI: ffff88801b6ce800 RDI: ffff88801b6ce864
RBP: 000000000003a678 R08: ffff8880b9337c7b R09: 1ffff11017266f8f
R10: dffffc0000000000 R11: ffffffff8bad7c90 R12: ffff88801a7ae000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eeca740
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc5ce2dc866 CR3: 0000000020260000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702
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