我在“crash”实用程序命令行使用“log”命令获得以下输出：
[9176.888659] perf interrupt took too long (5011 > 5000), lowering kernel.perf_event_max_sample_rate to 25000.
[92733.329430] BUG: unable to handle kernel paging request at 0000000081b66158
[92733.329496] IP: [<0000000081b66158>] 0x81b66158.
[92733.329533] PGD 1057674067 PUD 0
[92733.329561] Oops: 0010 [#1] SMP
[92733.329589] Modules linked in: ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack iptable_filter xt_tcpudp xt_CT nf_conntrack iptable_raw ip_tables x_tables intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ipmi_devintf ipmi_ssif bonding ablk_helper cryptd dm_multipath sb_edac edac_core 8250_fintek shpchp lpc_ich mac_hid acpi_power_meter ipmi_si ipmi_msghandler iTCO_wdt iTCO_vendor_support raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 ast ttm drm_kms_helper mxm_wmi syscopyarea ixgbe sysfillrect igb vxlan sysimgblt ip6_udp_tunnel fb_sys_fops dca udp_tunnel ptp drm ahci pps_core i2c_algo_bit.
[92733.330174] libahci mdio fjes wmi.
[92733.330198] CPU: 24 PID: 24797 Comm: java Not tainted 4.4.0-31-generic #50~14.04.1-Ubuntu.
[92733.330250] Hardware name: Quanta Computer Inc. P-100.Scaler.01/S2PC-MB(Dual 1G LOM), BIOS S2P_3B04.HGT04 04/12/2017.
[92733.330316] task: ffff88104aa7ee00 ti: ffff88104c940000 task.ti: ffff88104c940000.
[92733.330364] RIP: 0010:[<0000000081b66158>] [<0000000081b66158>] 0x81b66158.
[92733.330411] RSP: 0018:ffff88104c943d50 EFLAGS: 00010246.
[92733.330445] RAX: 0000000000000000 RBX: ffff88104c943dc0 RCX: 0000000000000013.
[92733.330490] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 000000007a3e56da.
[92733.330536] RBP: ffffffff8137c2b8 R08: 0000000000000003 R09: ffffc90007b4d6e0.
[92733.330581] R10: 000000002b300067 R11: 0000000000000067 R12: ffffffff8173f1cb.
[92733.330626] R13: 000000000000fe88 R14: ffff88104c943e30 R15: 0000000000000025
[92733.330671] FS: 00007f93e36f6700(0000) GS:ffff88105f400000(0000) knlGS:0000000000000000.
[92733.330723] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033.
[92733.330760] CR2: 0000000081b66158 CR3: 000000104f5d4000 CR4: 00000000003406e0.
[92733.330806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000.
[92733.330851] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400.
[92733.330895] Stack:
[92733.330911] ffff880707f74600 ffff88104aa7ee00 ff01ffff00000000 0000000000000025.
[92733.330965] ffff880b00000000 000005a800000000 0000000000000025 ffffffff0000fe88.
[92733.331019] 7fffffffffffffff ffff880b7dd618c0 ffff880707f74600 0000000000000000.
[92733.331073] Call Trace:
[92733.331097] [<ffffffff81769937>] ? inet_sendmsg+0x67/0xa0.
[92733.331137] [<ffffffff816d6d58>] ? sock_sendmsg+0x38/0x50.
[92733.331174] [<ffffffff816d71f2>] ? SYSC_sendto+0x102/0x190.
[92733.331213] [<ffffffff8137ccb4>] ? aa_sock_opt_perm+0x54/0x110.
[92733.331254] [<ffffffff8173d00c>] ? tcp_getsockopt+0x2c/0x30.
[92733.331293] [<ffffffff816d7d3e>] ? SyS_sendto+0xe/0x10.
[92733.331330] [<ffffffff817f6f36>] ? entry_SYSCALL_64_fastpath+0x16/0x75.
[92733.331372] Code: Bad RIP value.
[92733.331397] RIP [<0000000081b66158>] 0x81b66158.
[92733.331429] RSP <ffff88104c943d50>.
[92733.331453] CR2: 0000000081b66158.
根据内核文档“kernel.org/doc/gorman/html/understand/understand007.html”第 4.6 节的内容如下：
内核模式下用户空间区域发生故障 - 错误 - 如果发生故障，则意味着内核系统未正确从用户空间复制并导致页面错误。这是一个内核错误，处理起来相当严肃。
因此，我提出这个问题，看看我是否错过了任何建议的修复，或者这个问题是否已经在处理中？
硬件：
CPU 详细信息（cat /proc/cpuinfo 中的最后一个处理器）。
processor : 31 vendor_id : GenuineIntel cpu family : 6. model : 79. model name : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz. stepping : 1. microcode : 0xb000021.内存
Memory Device. Array Handle: 0x0037. Error Information Handle: Not Provided. Total Width: 72 bits. Data Width: 64 bits. Size: 16384 MB. Form Factor: DIMM. Set: None. Locator: DIMM_A0. Bank Locator: _Node0_Channel0_Dimm0. Type: <OUT OF SPEC>. Type Detail: Synchronous. Speed: 2133 MHz. Manufacturer: Samsung. Serial Number: 4156465A. Asset Tag: DIMM_A0_AssetTag. Part Number: M393A2K40BB0-CPB Rank: 1. Configured Clock Speed: 2133 MHz. Minimum voltage: 1.200 V. Maximum voltage: 1.200 V. Configured voltage: 1.200 V.