[dpdk-dev] DPDK xen-dom0 not working at all

[Liu, Jijiang]

">" was missed in the following command.

echo 2048 > /sys/kernel/mm/dom0-mm/memsize-mB/memsize

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Murillo
> Sent: Thursday, October 30, 2014 6:27 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] DPDK xen-dom0 not working at all
> 
> English is not my native language; please excuse typing errors.
> 
> 
> I am new to DPDK with Xen, but I am able to run DPDK applications without xen
> using hugepages. But when I try to do it in xen-dom0 it does not work. Let me
> explain:
> 
> 
> I have followed the intructions on the Getting Started Guide, so I execute the next
> steps:
> 
> 
> Dpdk/config/common_linuxapp
> 
> CONFIG_RTE_LIBRTE_XEN_DOM0=y
> 
> make config T=x86_64-native-linuxapp-gcc
> 
> make install T=x86_64-native-linuxapp-gcc
> 
> sudo modprobe uio
> 
> sudo insmod x86_64-native-linuxapp-gcc/kmod/igb_uio.ko
> 
> sudo insmod x86_64-native-linuxapp-gcc/kmod/rte_dom0_mm.ko
> rsv_memsize=2048
> 
> echo 2048 /sys/kernel/mm/dom0-mm/memsize-mB/memsize
> 
> tools/dpdk_nic_bind.py --bind=igb_uio $(tools/dpdk_nic_bind.py --status
> | sed -rn 's,.* if=([^ ]*).*igb_uio *$,\1,p')
> 
> 
> 
> The main problem appears when I try to execute helloworld for example.
> 
> Sudo ./build/helloworld -c 0xf -n 2 –xen-dom0
> 
> Output:
> 
> EAL: Detected lcore 0 as core 0 on socket 0
> 
> EAL: Detected lcore 1 as core 0 on socket 0
> 
> EAL: Detected lcore 2 as core 1 on socket 0
> 
> …
> 
> EAL: Detected lcore 39 as core 12 on socket 0
> 
> EAL: Support maximum 64 logical core(s) by configuration.
> 
> EAL: Detected 40 lcore(s)
> 
> And it stops.
> 
> 
> 
> If I execute dmegs I get the following:
> 
> [ 1098.120193] helloworld[20116] trap invalid opcode ip:45adb7
> sp:7fff4cf7e150 error:0 in helloworld[400000+115000]
> 
> 
> 
> Here are the characteristics of the server:
> 
> DPDK 1.7.1
> 
> xm info:
> 
> host : vh05
> 
> release : 3.5.0-47-generic
> 
> version : #71~precise1-Ubuntu SMP Wed Feb 19 22:02:52 UTC 2014
> 
> machine : x86_64
> 
> nr_cpus : 40
> 
> nr_nodes : 2
> 
> cores_per_socket : 10
> 
> threads_per_core : 2
> 
> cpu_mhz : 3000
> 
> hw_caps :
> bfebfbff:2c100800:00000000:00007f40:73bee3ff:00000000:00000001:00000281
> 
> virt_caps : hvm hvm_directio
> 
> total_memory : 32722
> 
> free_memory : 28196
> 
> free_cpus : 0
> 
> xen_major : 4
> 
> xen_minor : 1
> 
> xen_extra : .5
> 
> xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
> hvm-3.0-x86_64
> 
> xen_scheduler : credit
> 
> xen_pagesize : 4096
> 
> platform_params : virt_start=0xffff800000000000
> 
> xen_changeset : unavailable
> 
> xen_commandline : placeholder dom0_mem=4096M max_loop=64
> 
> cc_compiler : gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
> 
> cc_compile_by : stefan.bader
> 
> cc_compile_domain : canonical.com
> 
> cc_compile_date : Wed Feb 19 15:32:59 UTC 2014
> 
> xend_config_format : 4
> 
> 
> 
> Thank you in anvanced.
> 
> 
> 
> 
> 
> 
> 
> 
> 
>