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

[Murillo <imurillo006@ehu.es>]

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@dpdk.org] On Behalf Of Murillo
>> Sent: Thursday, October 30, 2014 6:27 PM
>> To: dev@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.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>