rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10564/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=54289, q=92 ncpus=2)
task:syz-executor.1 state:R running task stack:28544 pid:10564 ppid:5070 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6864
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1525 [inline]
zap_pmd_range mm/memory.c:1573 [inline]
zap_pud_range mm/memory.c:1602 [inline]
zap_p4d_range mm/memory.c:1623 [inline]
unmap_page_range+0x1475/0x2c10 mm/memory.c:1644
unmap_single_vma+0x194/0x2b0 mm/memory.c:1690
unmap_vmas+0x1e2/0x330 mm/memory.c:1731
exit_mmap+0x1ad/0xa60 mm/mmap.c:3210
__mmput+0x12a/0x4d0 kernel/fork.c:1349
mmput+0x62/0x70 kernel/fork.c:1371
exit_mm kernel/exit.c:567 [inline]
do_exit+0x9ad/0x2a20 kernel/exit.c:861
do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
get_signal+0x23ba/0x2790 kernel/signal.c:2892
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+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4ff947cae9
RSP: 002b:00007f4ffa1b3178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f4ff959bf88 RCX: 00007f4ff947cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4ff959bf88
RBP: 00007f4ff959bf80 R08: 00007f4ffa1b36c0 R09: 00007f4ffa1b36c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4ff959bf8c
R13: 000000000000000b R14: 00007fffd30b00a0 R15: 00007fffd30b0188
rcu: rcu_preempt kthread timer wakeup didn't happen for 10500 jiffies! g54289 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=54289
rcu: rcu_preempt kthread starved for 10501 jiffies! g54289 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:28480 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1613
rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1812
kthread+0x33c/0x440 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:304
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10567 Comm: syz-executor.3 Not tainted 6.6.0-rc3-syzkaller-00225-gec8c298121e3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__lock_acquire+0x2c2/0x5de0 kernel/locking/lockdep.c:5070
Code: 00 41 0f b7 45 20 49 8d 7d 08 66 25 00 e0 09 d0 48 89 fa 66 41 89 45 20 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 <0f> 85 89 3e 00 00 48 8b 84 24 50 01 00 00 49 89 45 08 49 8d 45 10
RSP: 0018:ffffc90000007bd0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000000066 RCX: 1ffff1101097699a
RDX: 1ffff11010976997 RSI: 00000000000001b3 RDI: ffff888084bb4cb8
RBP: 0000000000000001 R08: 1ffff11010976995 R09: 0000000000000001
R10: ffff8880b982b958 R11: ffffc90000007ff8 R12: 0000000000000000
R13: ffff888084bb4cb0 R14: 0000000000000000 R15: 0000000000000000
FS: 0000555556d53480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f358179bf84 CR3: 00000000216ae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5753 [inline]
lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x2bd/0xc10 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
__sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__sanitizer_cov_trace_cmp8+0x8/0x20 kernel/kcov.c:283
Code: 00 00 f3 0f 1e fa 48 8b 0c 24 89 f2 89 fe bf 04 00 00 00 e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 <48> 89 f2 48 89 fe bf 06 00 00 00 e9 f8 fe ff ff 0f 1f 84 00 00 00
RSP: 0018:ffffc900037ef4a8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffc900037ef530 RCX: ffffffff813a585c
RDX: ffff888084bb41c0 RSI: ffffc900037ef660 RDI: ffffc900037ef5d0
RBP: ffffc900037ef660 R08: 0000000000000004 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc900037e8000
R13: ffffc900037f0000 R14: ffffc900037ef668 R15: ffffc900037ef5d0
unwind_next_frame+0x122c/0x2390 arch/x86/kernel/unwind_orc.c:665
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
kmem_cache_alloc_bulk+0x32e/0x400 mm/slab.c:3481
mt_alloc_bulk lib/maple_tree.c:165 [inline]
mas_alloc_nodes+0x39c/0x830 lib/maple_tree.c:1271
mas_node_count_gfp+0x105/0x130 lib/maple_tree.c:1329
mas_preallocate+0x2d7/0xda0 lib/maple_tree.c:5467
vma_iter_prealloc mm/internal.h:1077 [inline]
__split_vma+0x435/0x1070 mm/mmap.c:2355
split_vma+0xc8/0x110 mm/mmap.c:2414
mprotect_fixup+0xa10/0xdf0 mm/mprotect.c:644
do_mprotect_pkey+0x852/0xd60 mm/mprotect.c:819
__do_sys_mprotect mm/mprotect.c:840 [inline]
__se_sys_mprotect mm/mprotect.c:837 [inline]
__x64_sys_mprotect+0x78/0xb0 mm/mprotect.c:837
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f358167cba7
Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 00 00 00 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:00007ffeee57d5d8 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007f358247c6c0 RCX: 00007f358167cba7
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f358245d000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000021000 R11: 0000000000000206 R12: 00007ffeee57d880
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000