rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10502 jiffies, g=79661, q=1139)
rcu: All QSes seen, last rcu_preempt kthread activity 10501 (4295005054-4294994553), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g79661 f0x2 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:28688 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
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: 12284 Comm: syz-executor.3 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 b1 22 46 00 5d be 03 00 00 00 e9 96 36 63 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 99 c4 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90000007b70 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888016c90000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8f16d00f
R10: ffffffff817defe8 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007fa681017700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ea23000 CR3: 0000000043d2f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_on+0x6e/0x1c0 kernel/trace/trace_preemptirq.c:44
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x2d/0x60 kernel/kcov.c:200
Code: 99 c4 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 a4 15 00 00 <85> c0 74 2b 8b 82 80 15 00 00 83 f8 02 75 20 48 8b 8a 88 15 00 00
RSP: 0018:ffffc90000007c48 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff88804e0cc710 RCX: 0000000000000100
RDX: ffff888016c90000 RSI: ffffffff875db236 RDI: 0000000000000003
RBP: 0000000225c17d04 R08: 0019999999999998 R09: 0000000000000000
R10: ffffffff875db21e R11: 0000000000000000 R12: 00000015798ee228
R13: ffff888019f18300 R14: 0000000000000000 R15: 0000000000000000
pie_calculate_probability+0x206/0x7c0 net/sched/sch_pie.c:344
fq_pie_timer+0x170/0x2a0 net/sched/sch_fq_pie.c:383
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch.isra.0+0x323/0xb80 kernel/sched/core.c:4852
Code: 93 b8 f3 07 85 c0 75 02 0f 0b 48 85 db 0f 85 25 01 00 00 4c 89 f7 e8 fc f7 ff ff e8 57 47 2d 00 fb 65 48 8b 1c 25 40 70 02 00 <48> 8d bb 80 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc9000381fa68 EFLAGS: 00000202
RAX: 00000000000001ad RBX: ffff888016c90000 RCX: 1ffffffff1b22179
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000381fab0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817defe8 R11: 0000000000000000 R12: ffff8880b9c3a7d8
R13: ffff88807a87d700 R14: ffff8880b9c39a80 R15: ffff8880b9c3a4b8
context_switch kernel/sched/core.c:4975 [inline]
__schedule+0xaa2/0x4940 kernel/sched/core.c:6253
preempt_schedule_notrace+0x5b/0xd0 kernel/sched/core.c:6498
preempt_schedule_notrace_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:36
rcu_read_unlock_sched_notrace include/linux/rcupdate.h:810 [inline]
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x538/0x720 kernel/locking/lockdep.c:5648
rcu_lock_release include/linux/rcupdate.h:273 [inline]
rcu_read_unlock include/linux/rcupdate.h:721 [inline]
percpu_ref_tryget_many include/linux/percpu-refcount.h:250 [inline]
percpu_ref_tryget include/linux/percpu-refcount.h:266 [inline]
obj_cgroup_tryget include/linux/memcontrol.h:820 [inline]
get_obj_cgroup_from_current+0x1c2/0x530 mm/memcontrol.c:2918
memcg_slab_pre_alloc_hook mm/slab.h:283 [inline]
slab_pre_alloc_hook mm/slab.h:497 [inline]
slab_alloc_node mm/slub.c:3148 [inline]
slab_alloc mm/slub.c:3242 [inline]
kmem_cache_alloc+0x78/0x3a0 mm/slub.c:3247
sock_alloc_inode+0x18/0x1c0 net/socket.c:303
alloc_inode+0x61/0x230 fs/inode.c:235
new_inode_pseudo+0x14/0xe0 fs/inode.c:944
sock_alloc+0x3c/0x260 net/socket.c:626
__sock_create+0xb9/0x790 net/socket.c:1428
sock_create net/socket.c:1515 [inline]
__sys_socket+0xef/0x200 net/socket.c:1557
__do_sys_socket net/socket.c:1566 [inline]
__se_sys_socket net/socket.c:1564 [inline]
__x64_sys_socket+0x6f/0xb0 net/socket.c:1564
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+0x44/0xae
RIP: 0033:0x7fa6826a1e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa681017168 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fa6827b4f60 RCX: 00007fa6826a1e99
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 000000000000001e
RBP: 00007fa6826fc031 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa682ce8b1f R14: 00007fa681017300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 48 89 ef mov %rbp,%rdi
3: 5d pop %rbp
4: e9 b1 22 46 00 jmpq 0x4622ba
9: 5d pop %rbp
a: be 03 00 00 00 mov $0x3,%esi
f: e9 96 36 63 02 jmpq 0x26336aa
14: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
1a: 48 8b be b0 01 00 00 mov 0x1b0(%rsi),%rdi
21: e8 b4 ff ff ff callq 0xffffffda
26: 31 c0 xor %eax,%eax
28: c3 retq
29: 90 nop
* 2a: 65 8b 05 99 c4 8a 7e mov %gs:0x7e8ac499(%rip),%eax # 0x7e8ac4ca <-- trapping instruction
31: 89 c1 mov %eax,%ecx
33: 48 8b 34 24 mov (%rsp),%rsi
37: 81 e1 00 01 00 00 and $0x100,%ecx
3d: 65 gs
3e: 48 rex.W
3f: 8b .byte 0x8b