rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=0a54/1/0x4000000000000000 softirq=145134/145134 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P18676/1:b..l
rcu: (detected by 0, t=10506 jiffies, g=209533, q=72 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 18683 Comm: syz-executor.4 Not tainted 6.7.0-rc2-syzkaller-00147-gf1a09972a45a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:116 [inline]
RIP: 0010:lock_release+0xc7/0x690 kernel/locking/lockdep.c:5766
Code: 48 19 8f e8 4b 2a 76 00 48 0f a3 1d 63 3b b1 0d 0f 82 07 04 00 00 48 c7 c3 38 7c 19 8f 48 b8 00 00 00 00 00 fc ff df 48 89 da <48> c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84
RSP: 0018:ffffc900001f0c30 EFLAGS: 00000002
RAX: dffffc0000000000 RBX: ffffffff8f197c38 RCX: ffffffff81680ce5
RDX: ffffffff8f197c38 RSI: ffffffff8b2f0e80 RDI: ffffffff8ca73a68
RBP: 1ffff9200003e188 R08: 0000000000000000 R09: fffffbfff1e3290a
R10: ffffffff8f194857 R11: 0000000000000004 R12: ffffffff929eb0d8
R13: ffff888021b60340 R14: ffffffff8acf39e0 R15: 1ffff9200003e1a6
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc399090000 CR3: 000000000cd77000 CR4: 0000000000350ef0
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x1a/0x70 kernel/locking/spinlock.c:194
debug_object_activate+0x27f/0x490 lib/debugobjects.c:745
debug_hrtimer_activate kernel/time/hrtimer.c:422 [inline]
debug_activate kernel/time/hrtimer.c:477 [inline]
enqueue_hrtimer+0x23/0x310 kernel/time/hrtimer.c:1087
__run_hrtimer kernel/time/hrtimer.c:1705 [inline]
__hrtimer_run_queues+0xa12/0xc20 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
__sysvec_apic_timer_interrupt+0x105/0x400 arch/x86/kernel/apic/apic.c:1082
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:_compound_head+0x25/0x130 include/linux/page-flags.h:247
Code: 00 00 0f 1f 00 41 54 55 53 48 89 fb e8 04 a0 bf ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 e8 00 00 00 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee e8
RSP: 0018:ffffc9000e4f76b8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffea00011a5b00 RCX: ffffffff81c8cbb9
RDX: 1ffffd4000234b61 RSI: ffffffff81c7ea2c RDI: ffffea00011a5b08
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000000
R13: ffff88805fe7ead8 R14: dffffc0000000000 R15: 0000000000000007
PageAnon include/linux/page-flags.h:657 [inline]
mm_counter include/linux/mm.h:2596 [inline]
zap_pte_range mm/memory.c:1463 [inline]
zap_pmd_range mm/memory.c:1582 [inline]
zap_pud_range mm/memory.c:1611 [inline]
zap_p4d_range mm/memory.c:1632 [inline]
unmap_page_range+0x1265/0x2b50 mm/memory.c:1653
unmap_single_vma+0x194/0x2b0 mm/memory.c:1699
unmap_vmas+0x229/0x470 mm/memory.c:1743
exit_mmap+0x1ad/0xa70 mm/mmap.c:3308
__mmput+0x12a/0x4d0 kernel/fork.c:1349
mmput+0x62/0x70 kernel/fork.c:1371
exit_mm kernel/exit.c:567 [inline]
do_exit+0x9ad/0x2ae0 kernel/exit.c:858
do_group_exit+0xd4/0x2a0 kernel/exit.c:1021
get_signal+0x23be/0x2790 kernel/signal.c:2904
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x121/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f900a87cae9
Code: Unable to access opcode bytes at 0x7f900a87cabf.
RSP: 002b:00007f900b62e178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f900a99bf88 RCX: 00007f900a87cae9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f900a99bf8c
RBP: 00007f900a99bf80 R08: 0000000000000001 R09: 00007f900b62e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f900a99bf8c
R13: 000000000000000b R14: 00007ffd87006560 R15: 00007ffd87006648
task:syz-executor.5 state:R running task stack:28112 pid:18676 tgid:18674 ppid:5084 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7008
irqentry_exit+0x36/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:776 [inline]
RIP: 0010:count_memcg_event_mm.part.0+0xfc/0x340 include/linux/memcontrol.h:1111
Code: 01 00 00 00 44 89 e6 48 89 df e8 ff 7b 1d 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 5d 65 bf ff 48 85 db 0f 85 21 02 00 00 bf 69 bf ff e8 6a 6d b7 08 31 ff 89 c3 89 c6 e8 1f 65 bf ff 85
RSP: 0000:ffffc9000e49fe60 EFLAGS: 00000283
RAX: 000000000002beb6 RBX: 0000000000000000 RCX: ffffc900052f9000
RDX: 0000000000040000 RSI: ffffffff81c82267 RDI: 0000000000000007
RBP: 0000000000000200 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000017
R13: 0000000000000000 R14: ffff888029347e10 R15: 0000000000000000
count_memcg_event_mm include/linux/memcontrol.h:573 [inline]
mm_account_fault mm/memory.c:5213 [inline]
handle_mm_fault+0x1ba/0xa10 mm/memory.c:5360
do_user_addr_fault+0x30b/0x1000 arch/x86/mm/fault.c:1364
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x5d/0xc0 arch/x86/mm/fault.c:1561
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f6fc6a286e6
RSP: 002b:00007f6fc7762520 EFLAGS: 00010206
RAX: 00000000001a2001 RBX: 00007f6fc77625c0 RCX: 0000000000000091
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007f6fc7762660
RBP: 0000000000000102 R08: 00007f6fbd1ff000 R09: 00000000001a2000
R10: 0000000000000000 R11: 00007f6fc77625d0 R12: 0000000000000001
R13: 00007f6fc6aea5a0 R14: 0000000000000000 R15: 00007f6fc7762660
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g209533 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=228864
rcu: rcu_preempt kthread starved for 10506 jiffies! g209533 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26864 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_timeout+0x137/0x290 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x1ec/0xb10 kernel/rcu/tree.c:1631
rcu_gp_kthread+0x24b/0x380 kernel/rcu/tree.c:1830
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242