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perf buffer not large enough. entry_SYSCALL_64_after_hwframe+0x41/0xa6

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Имеется виртуалка в OpenStack с Ubuntu у заказчика.

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.5 LTS
Release:        18.04
Codename:       bionic

Ядро

uname -r
4.15.0-159-generic

Сегодня увидел в dmesg такие логи. Что это может быть? Что можно еще посмотреть?

[Wed Oct 20 14:28:18 2021] ------------[ cut here ]------------
[Wed Oct 20 14:28:18 2021] perf buffer not large enough
[Wed Oct 20 14:28:18 2021] WARNING: CPU: 0 PID: 12288 at /build/linux-teTg6M/linux-4.15.0/kernel/trace/trace_event_perf.c:288 perf_trace_buf_alloc+0x86/0xa0
[Wed Oct 20 14:28:18 2021] Modules linked in: ip6table_filter ip6_tables xt_nat veth vsock_diag vsock sctp_diag sctp dccp_diag dccp raw_diag unix_diag af_packet_diag netlink_diag udp_diag tcp_diag inet_diag ipt_REJECT nf_reject_ipv4 xt_tcpudp xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack br_netfilter bridge stp llc overlay aufs nls_iso8859_1 input_leds kvm_intel kvm irqbypass joydev serio_raw sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath
[Wed Oct 20 14:28:18 2021]  linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc hid_generic aesni_intel aes_x86_64 crypto_simd glue_helper cryptd usbhid psmouse ahci libahci virtio_scsi hid virtio_net
[Wed Oct 20 14:28:18 2021] CPU: 0 PID: 12288 Comm: dockerd Not tainted 4.15.0-159-generic #167-Ubuntu
[Wed Oct 20 14:28:18 2021] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.10.2-1ubuntu1 04/01/2014
[Wed Oct 20 14:28:18 2021] RIP: 0010:perf_trace_buf_alloc+0x86/0xa0
[Wed Oct 20 14:28:18 2021] RSP: 0018:ffffa60a42453cd0 EFLAGS: 00010282
[Wed Oct 20 14:28:18 2021] RAX: 0000000000000000 RBX: 000000000000109c RCX: 0000000000000000
[Wed Oct 20 14:28:18 2021] RDX: 000000000000001c RSI: ffffffffa2d63c3c RDI: 0000000000000246
[Wed Oct 20 14:28:18 2021] RBP: ffffa60a42453ce8 R08: 000013084d9fabc3 R09: ffffffffa2d63c20
[Wed Oct 20 14:28:18 2021] R10: 000000000000104e R11: 0000000000000001 R12: 000000000000104e
[Wed Oct 20 14:28:18 2021] R13: ffffa60a42453e28 R14: 000000000000000f R15: ffff9a3a8e0d5000
[Wed Oct 20 14:28:18 2021] FS:  00007fca2e7fc700(0000) GS:ffff9a3d3fc00000(0000) knlGS:0000000000000000
[Wed Oct 20 14:28:18 2021] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Wed Oct 20 14:28:18 2021] CR2: 000000000000000f CR3: 000000042adfc004 CR4: 00000000007606f0
[Wed Oct 20 14:28:18 2021] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[Wed Oct 20 14:28:18 2021] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[Wed Oct 20 14:28:18 2021] PKRU: 55555554
[Wed Oct 20 14:28:18 2021] Call Trace:
[Wed Oct 20 14:28:18 2021]  kprobe_perf_func+0xb4/0x250
[Wed Oct 20 14:28:18 2021]  ? do_execveat_common.isra.34+0x5/0x7d0
[Wed Oct 20 14:28:18 2021]  kprobe_dispatcher+0x34/0x50
[Wed Oct 20 14:28:18 2021]  aggr_pre_handler+0x45/0x80
[Wed Oct 20 14:28:18 2021]  ? do_execveat_common.isra.34+0x1/0x7d0
[Wed Oct 20 14:28:18 2021]  kprobe_ftrace_handler+0x8f/0xf0
[Wed Oct 20 14:28:18 2021]  ftrace_ops_assist_func+0xa9/0x130
[Wed Oct 20 14:28:18 2021]  0xffffffffc07c80d5
[Wed Oct 20 14:28:18 2021]  ? do_execveat_common.isra.34+0x1/0x7d0
[Wed Oct 20 14:28:18 2021]  do_execveat_common.isra.34+0x5/0x7d0
[Wed Oct 20 14:28:18 2021]  SyS_execve+0x31/0x40
[Wed Oct 20 14:28:18 2021]  ? do_execveat_common.isra.34+0x5/0x7d0
[Wed Oct 20 14:28:18 2021]  ? copy_oldmem_page+0xb0/0xb0
[Wed Oct 20 14:28:18 2021]  do_syscall_64+0x73/0x130
[Wed Oct 20 14:28:18 2021]  entry_SYSCALL_64_after_hwframe+0x41/0xa6
[Wed Oct 20 14:28:18 2021] RIP: 0033:0x555a8ebc944b
[Wed Oct 20 14:28:18 2021] RSP: 002b:000000c000fd3bb8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
[Wed Oct 20 14:28:18 2021] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000555a8ebc944b
[Wed Oct 20 14:28:18 2021] RDX: 000000c000f34740 RSI: 000000c0014cb6d0 RDI: 000000c0014882a0
[Wed Oct 20 14:28:18 2021] RBP: 000000c000fd3d58 R08: 0000000000000000 R09: 0000000000000000
[Wed Oct 20 14:28:18 2021] R10: 0000000000000000 R11: 0000000000000202 R12: 0000555a8ebbda50
[Wed Oct 20 14:28:18 2021] R13: 0000000000000018 R14: 0000000000000017 R15: 0000000000000100
[Wed Oct 20 14:28:18 2021] Code: c7 44 18 f8 00 00 00 00 5b 41 5c 41 5d 5d c3 80 3d a2 06 48 01 00 75 15 48 c7 c7 9b 60 4e a2 c6 05 92 06 48 01 01 e8 4a de ef ff <0f> 0b 5b 31 c0 41 5c 41 5d 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 
[Wed Oct 20 14:28:18 2021] ---[ end trace 4571369f97795a2f ]---

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