[dpdk-users] DPDK build failed in virtual machine

wuzhouhui wuzhouhui14 at mails.ucas.ac.cn
Fri Dec 28 10:27:09 CET 2018


> -----Original Messages-----
> From: "Tom Barbette" <barbette at kth.se>
> Sent Time: 2018-12-27 18:20:30 (Thursday)
> To: wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn>, "users at dpdk.org" <users at dpdk.org>
> Cc: 
> Subject: RE: [dpdk-users] DPDK build failed in virtual machine
> 
> Hi,
> 
> By default DPDK build for the current CPU.
> 
> I guess in your virtual machine configuration you enabled emulation of a CPU instead of CPU passthrough. This is the default of libvirt I think. The default emulated CPU has no fancy insturctions by default, and is, it seems from your error log, set in 32bit mode.
> 

What do you mean "set in 32bit mode"? The arch of virtual machine is x86_64, so the cpu should
be in 64 bit mode.

Thanks.
Wu

> Tom
> 
> ________________________________________
> De : users <users-bounces at dpdk.org> de la part de wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn>
> Envoyé : lundi 24 décembre 2018 03:51
> À : users at dpdk.org
> Objet : [dpdk-users] DPDK build failed in virtual machine
> 
> Hi,
> 
> A naive question, but I couldn't find any clue when searching Internet.
> 
> When I build DPDK in a CentOS-6.3 virtual machine, I got some errors:
> 
> [wzh at CentOS6-compiler dpdk-stable-18.05.1]$ make config T=x86_64-native-linuxapp-gcc
> Configuration done using x86_64-native-linuxapp-gcc
> [wzh at CentOS6-compiler dpdk-stable-18.05.1]$ make
> cc1: error: CPU you selected does not support x86-64 instruction set
> == Build lib
> cc1: error: CPU you selected does not support x86-64 instruction set
> == Build lib/librte_compat
> cc1: error: CPU you selected does not support x86-64 instruction set
>   SYMLINK-FILE include/rte_compat.h
> == Build lib/librte_eal
> cc1: error: CPU you selected does not support x86-64 instruction set
> ^Cmake[2]: *** [librte_eal] Interrupt
> make[1]: *** [lib] Interrupt
> make: *** [all] Interrupt
> 
> [wzh at CentOS6-compiler dpdk-stable-18.05.1]$ gcc --version
> gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4)
> Copyright (C) 2010 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> But build in host (CentOS-6.3) seems fine. Does it means that DPDP cannot be
> build in virtual machine?
> 
> Thanks.


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