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

[Liu, Jijiang]

You are using Xen 4.1.5, and try to do  following change In dpdk/config/defconfig_x86_64-native-linuxapp-gcc(assuming you use x86_64-native-linuxapp-gcc to compile).

Change
CONFIG_RTE_MACHINE="native" 
To
CONFIG_RTE_MACHINE="default"


> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Murillo
> Sent: Thursday, October 30, 2014 11:11 PM
> To: dev at dpdk.org
> Subject: Re: [dpdk-dev] DPDK xen-dom0 not working at all
> 
> I am sorry, I missed it during the redaction of the email. I executed it correcly.
> When I do "cat /sys/kernel/mm/dom0-mm/memsize-mB/memsize" it prints
> 2048.
> 
> Thank you for your answer and your time.
> 
> El 30/10/14 a las 13:59, Liu, Jijiang escribió:
> > ">" 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:00000000:00000001:000002
> >> 81
> >>
> >> 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.
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>