rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=c73c/1/0x4000000000000000 softirq=36798/36798 fqs=2
rcu: (detected by 0, t=10502 jiffies, g=54817, q=152 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5100 Comm: syz-executor.4 Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xc/0x60 kernel/kcov.c:207
Code: 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 48 8b 15 f4 ae 7b 7e <65> 8b 05 f5 ae 7b 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74
RSP: 0018:ffffc900001f0d78 EFLAGS: 00000002
RAX: 0000000080010000 RBX: 0000000000000000 RCX: ffffffff8877a74a
RDX: ffff88802c9b3b80 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff888023c6c010 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff8acf3060 R12: 0000000000000002
R13: ffff888023c6c000 R14: ffff8880822d5340 R15: ffff888023c6c800
FS: 0000555555696480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fce46577198 CR3: 0000000071b51000 CR4: 00000000003506f0
Call Trace:
advance_sched+0x6a7/0xc60 net/sched/sch_taprio.c:997
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x20c/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+0x10c/0x410 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:649
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 36 76 e0 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 48 8b 15 f4 ae 7b 7e 65 8b 05 f5 ae 7b 7e a9 00 01
RSP: 0018:ffffc90004a17310 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff813a5732
RDX: ffff88802c9b3b80 RSI: 0000000000000000 RDI: 0000000000000005
RBP: ffffc90004a17ce8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000040 R12: ffffc90004a10000
R13: ffffc90004a18000 R14: ffffc90004a17cf0 R15: ffffc90004a17c38
unwind_next_frame+0x51/0x2390 arch/x86/kernel/unwind_orc.c:476
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
kasan_set_track+0x24/0x30 mm/kasan/common.c:61
unpoison_slab_object mm/kasan/common.c:282 [inline]
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:308
kasan_slab_alloc include/linux/kasan.h:200 [inline]
slab_post_alloc_hook mm/slub.c:3817 [inline]
slab_alloc_node mm/slub.c:3864 [inline]
kmem_cache_alloc_node+0x177/0x340 mm/slub.c:3907
preload_this_cpu_lock mm/vmalloc.c:1570 [inline]
alloc_vmap_area+0xda2/0x2080 mm/vmalloc.c:1614
__get_vm_area_node+0x132/0x3d0 mm/vmalloc.c:2595
__vmalloc_node_range+0x279/0x1530 mm/vmalloc.c:3280
__vmalloc_node mm/vmalloc.c:3385 [inline]
vzalloc+0x6b/0x80 mm/vmalloc.c:3458
alloc_counters net/ipv4/netfilter/arp_tables.c:660 [inline]
copy_entries_to_user net/ipv4/netfilter/arp_tables.c:681 [inline]
get_entries net/ipv4/netfilter/arp_tables.c:867 [inline]
do_arpt_get_ctl+0x676/0x9a0 net/ipv4/netfilter/arp_tables.c:1453
nf_getsockopt+0x76/0xe0 net/netfilter/nf_sockopt.c:116
ip_getsockopt+0x186/0x1d0 net/ipv4/ip_sockglue.c:1780
tcp_getsockopt+0x97/0xf0 net/ipv4/tcp.c:4361
do_sock_getsockopt+0x2e1/0x6c0 net/socket.c:2371
__sys_getsockopt+0x1a1/0x270 net/socket.c:2400
__do_sys_getsockopt net/socket.c:2410 [inline]
__se_sys_getsockopt net/socket.c:2407 [inline]
__x64_sys_getsockopt+0xbd/0x150 net/socket.c:2407
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fce4647e88a
Code: c4 c1 e0 1a 0d 00 00 04 00 89 01 e9 e0 fe ff ff e8 3b 05 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 b0 ff ff ff f7
RSP: 002b:00007ffd605c0c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fce4647e88a
RDX: 0000000000000061 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffd605c0cc0 R08: 00007ffd605c0c6c R09: 00007ffd605c1057
R10: 00007ffd605c0cc0 R11: 0000000000000212 R12: 00007ffd605c0c6c
R13: 00000000000a1aef R14: 00000000000a1ae0 R15: 0000000000000002
rcu: rcu_preempt kthread starved for 10498 jiffies! g54817 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:29320 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5c80 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe7/0x270 kernel/sched/core.c:6817
schedule_timeout+0x136/0x290 kernel/time/timer.c:2183
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1631
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1830
kthread+0x2c1/0x3a0 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
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 11389 Comm: kworker/u4:20 Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__sanitizer_cov_trace_pc+0x33/0x60 kernel/kcov.c:207
Code: ae 7b 7e 65 8b 05 f5 ae 7b 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 fc 15 00 00 85 c0 74 2b 8b 82 d8 15 00 00 <83> f8 02 75 20 48 8b 8a e0 15 00 00 8b 92 dc 15 00 00 48 8b 01 48
RSP: 0018:ffffc9000ac2f918 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880b9942060 RCX: ffffffff817c4e68
RDX: ffff88801e653b80 RSI: ffffffff817c4e42 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed101732840d
R13: 0000000000000001 R14: ffff8880b9942068 R15: ffff8880b983dec0
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae5df98000 CR3: 000000000cf78000 CR4: 00000000003506f0
Call Trace:
rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
csd_lock_wait kernel/smp.c:311 [inline]
smp_call_function_many_cond+0x4e2/0x1570 kernel/smp.c:855
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
text_poke_bp_batch+0x22b/0x750 arch/x86/kernel/alternative.c:2296
text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2484 [inline]
text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2494
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x1d7/0x400 kernel/jump_label.c:829
static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:205
static_key_enable+0x1a/0x20 kernel/jump_label.c:218
toggle_allocation_gate mm/kfence/core.c:826 [inline]
toggle_allocation_gate+0xf4/0x250 mm/kfence/core.c:818
process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787
kthread+0x2c1/0x3a0 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