我正在Azure上运行CentOS 7.2虚拟机并获得CPU卡住内核错误警告。 top表示CPU#0已100％正在使用中。
[admin@bench2 ~]$
Message from syslogd@bench2 at Feb 9 10:06:43 ...
kernel:BUG: soft lockup - CPU#0 stuck for 22s! [kworker/u128:1:13777]
这是top输出：
Tasks: 258 total, 7 running, 251 sleeping, 0 stopped, 0 zombie
%Cpu0 : 0.0 us,100.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu1 : 0.3 us, 0.3 sy, 0.0 ni, 99.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu2 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu3 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 28813448 total, 26938144 free, 653860 used, 1221444 buff/cache
KiB Swap: 0 total, 0 free, 0 used. 27557900 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
73 root 20 0 0 0 0 S 0.7 0.0 1:03.03 rcu_sched
1 root 20 0 43668 6204 3796 S 0.0 0.0 0:04.70 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.03 kthreadd
3 root 20 0 0 0 0 R 0.0 0.0 0:00.10 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
Centos +内核版本：
CentOS Linux release 7.1.1503 (Core)
Linux bench2 3.10.0-229.7.2.el7.x86_64 #1 SMP Tue Jun 23 22:06:11 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
如果发现此错误也出现在CentOS 7.2版本上。
[84176.089080] BUG: soft lockup - CPU#0 stuck for 23s! [kworker/u128:1:13777]
[84176.089080] Modules linked in: vfat fat isofs xfs libcrc32c iptable_filter ip_tables udf crc_itu_t hyperv_fb hyperv_keyboard hv_utils i2c_piix4 i2c_core serio_raw pcspkr crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd ext4 mbcache jbd2 sd_mod crc_t10dif crct10dif_common hv_netvsc hv_storvsc hid_hyperv sr_mod cdrom ata_generic pata_acpi ata_piix libata floppy hv_vmbus
[84176.089080] CPU: 0 PID: 13777 Comm: kworker/u128:1 Tainted: G W -------------- 3.10.0-229.7.2.el7.x86_64 #1
[84176.089080] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012
如果此版本在Azure上出现问题，则切换它没有问题。如果是这种情况，我想知道哪个CentOS版本最适合在Azure环境中运行。
