rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=406c/1/0x4000000000000000 softirq=150037/150038 fqs=5
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P13795/2:b..l
(detected by 1, t=10502 jiffies, g=244109, q=43 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18054 Comm: syz-executor.1 Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:check_preemption_disabled+0x2a/0x170 lib/smp_processor_id.c:16
Code: 41 56 41 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 7d 70 73 76 65 8b 1d de c5 73 76 81 e3 ff ff ff 7f 31 ff <89> de 0f 1f 44 00 00 85 db 74 11 0f 1f 44 00 00 44 89 e0 5b 5d 41
RSP: 0018:ffffc90000007bd8 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000010005 RCX: ffffffff815ef0cc
RDX: dffffc0000000000 RSI: ffffffff8a498fa0 RDI: 0000000000000000
RBP: ffffffff8a498fe0 R08: 0000000000000000 R09: ffffffff8de178d7
R10: fffffbfff1bc2f1a R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8a498fa0 R14: ffffffff913fc8f8 R15: 0000000000000000
FS: 00005555564fa400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c1ddad988 CR3: 0000000032b34000 CR4: 00000000003506f0
Call Trace:
rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:121 [inline]
rcu_is_watching+0xe/0xb0 kernel/rcu/tree.c:719
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x4fc/0x630 kernel/locking/lockdep.c:5639
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
debug_object_deactivate lib/debugobjects.c:732 [inline]
debug_object_deactivate+0x101/0x300 lib/debugobjects.c:720
debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
debug_deactivate kernel/time/hrtimer.c:481 [inline]
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0x422/0xfb0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x17c/0x640 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:6815
Code: 55 53 65 48 8b 1c 25 80 6f 02 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 12 85 c1 f7 e8 bd d0 f1 f7 fb bf 01 00 00 00 52 9f ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 a0 6f c1
RSP: 0018:ffffc9000350f9c8 EFLAGS: 00000206
RAX: 0000000000bc995f RBX: ffff88807c2ac280 RCX: 1ffffffff1bc2929
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed100f855850 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f556017 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
irqentry_exit+0x31/0x80 kernel/entry/common.c:432
asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:657
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:207
Code: 48 89 ef 5d e9 e1 a2 33 00 5d be 03 00 00 00 e9 86 68 88 02 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 c9 9a 86 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc9000350fa90 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000000
RDX: ffff88807c2ac280 RSI: ffffffff814dd85d RDI: 0000000000000007
RBP: 0000000000000008 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: ffff888011861c00 R15: ffff88803ca76400
queue_work_on+0xb3/0x110 kernel/workqueue.c:1550
queue_work include/linux/workqueue.h:503 [inline]
schedule_work include/linux/workqueue.h:564 [inline]
vmpressure mm/vmpressure.c:282 [inline]
vmpressure+0x287/0x310 mm/vmpressure.c:239
vmpressure_prio+0x3d/0x50 mm/vmpressure.c:343
do_try_to_free_pages+0xc5f/0x17a0 mm/vmscan.c:6402
try_to_free_mem_cgroup_pages+0x3a0/0xa70 mm/vmscan.c:6720
reclaim_high.constprop.0+0x182/0x230 mm/memcontrol.c:2389
mem_cgroup_handle_over_high+0x18c/0x510 mm/memcontrol.c:2574
resume_user_mode_work include/linux/resume_user_mode.h:58 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x18c/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:296
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f482ee8a597
Code: 73 01 c3 48 c7 c1 b8 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 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff2d1e2068 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
RAX: 0000000000000000 RBX: 00007fff2d1e20f0 RCX: 00007f482ee8a597
RDX: 00000000000001ff RSI: 00007fff2d1e20f0 RDI: 00000000ffffff9c
RBP: 00007fff2d1e20cc R08: 0000000000000000 R09: 0000000000000005
R10: 00007fff2d1e1e05 R11: 0000000000000202 R12: 0000000000000032
R13: 0000000000314bfb R14: 000000000000000d R15: 00007fff2d1e2130
task:syz-executor.4 state:R running task stack:24752 pid:13795 ppid:13781 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6815
irqentry_exit+0x31/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x223/0x630 kernel/locking/lockdep.c:5636
Code: 87 a3 7e 83 f8 01 0f 85 3a 03 00 00 9c 58 f6 c4 02 0f 85 25 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000370f738 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920006e1eea RCX: 8b1501463db95092
RDX: 1ffff11007685d69 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff90929947
R10: fffffbfff2125328 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8bf85b40 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:304 [inline]
rcu_read_lock include/linux/rcupdate.h:738 [inline]
percpu_ref_tryget_many include/linux/percpu-refcount.h:241 [inline]
percpu_ref_tryget include/linux/percpu-refcount.h:266 [inline]
obj_cgroup_tryget include/linux/memcontrol.h:774 [inline]
__get_obj_cgroup_from_memcg+0x55/0x270 mm/memcontrol.c:3000
get_obj_cgroup_from_current+0x116/0x250 mm/memcontrol.c:3020
memcg_slab_pre_alloc_hook mm/slab.h:485 [inline]
slab_pre_alloc_hook mm/slab.h:715 [inline]
slab_alloc_node mm/slab.c:3241 [inline]
slab_alloc mm/slab.c:3265 [inline]
__kmem_cache_alloc_lru mm/slab.c:3442 [inline]
kmem_cache_alloc+0x80/0x450 mm/slab.c:3461
anon_vma_chain_alloc mm/rmap.c:141 [inline]
anon_vma_clone+0xd7/0x5e0 mm/rmap.c:287
anon_vma_fork+0x76/0x630 mm/rmap.c:350
dup_mmap+0xbb8/0x10b0 kernel/fork.c:657
dup_mm+0x91/0x370 kernel/fork.c:1526
copy_mm kernel/fork.c:1575 [inline]
copy_process+0x3bc6/0x7190 kernel/fork.c:2253
kernel_clone+0xe7/0x980 kernel/fork.c:2671
__do_sys_clone+0xba/0x100 kernel/fork.c:2812
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2561c892ab
RSP: 002b:00007ffe12c3b150 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2561c892ab
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 00005555574cc400
R10: 00005555574cc6d0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe12c3b230
rcu: rcu_preempt kthread starved for 10492 jiffies! g244109 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:28792 pid:15 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1660
rcu_gp_kthread+0x236/0x360 kernel/rcu/tree.c:1859
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:113 [inline]
RIP: 0010:acpi_idle_do_entry+0x1fd/0x2a0 drivers/acpi/processor_idle.c:572
Code: 89 de e8 86 0b ea f7 84 db 75 ac e8 ed 0e ea f7 e8 a8 85 f0 f7 66 90 e8 e1 0e ea f7 0f 00 2d 2a d1 c2 00 e8 d5 0e ea f7 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 b0 0b ea f7 48 85 db
RSP: 0018:ffffc9000037fd10 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888012070180 RSI: ffffffff8991c59b RDI: 0000000000000000
RBP: ffff8881459a2864 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: ffff8881459a2800 R14: ffff8881459a2864 R15: ffff88801bec4004
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f588b663990 CR3: 0000000077bb2000 CR4: 00000000003506e0
Call Trace:
acpi_idle_enter+0x364/0x500 drivers/acpi/processor_idle.c:709
cpuidle_enter_state+0x1ab/0xd30 drivers/cpuidle/cpuidle.c:239
cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:356
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3f7/0x590 kernel/sched/idle.c:303
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400
start_secondary+0x252/0x300 arch/x86/kernel/smpboot.c:262
secondary_startup_64_no_verify+0xce/0xdb
vkms_vblank_simulate: vblank timer overrun