[dpdk-dev] intel x540-at2
Jose Gavine Cueto
pepedocs at gmail.com
Sun Jan 5 15:31:24 CET 2014
On Fri, Jan 3, 2014 at 9:43 PM, Venkatesan, Venky <
venky.venkatesan at intel.com> wrote:
> Pepe ,
> Was the DPDK library compiled on a different machine and the used in the
> VM? It looks like it has been compiled for native AVX (hence the
> vzeroupper). Could you dump cpuinfo in the VM and see what instruction set
> the VM supports?
Yes, it was compiled in a different machine and it was used in my VM. I
don't have cpuinfo prog as of the moment so I've pasted my VM's cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Core(TM) i5-3340M CPU @ 2.70GHz
stepping : 9
cpu MHz : 2658.957
cache size : 6144 KB
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc
rep_good nopl pni monitor ssse3 lahf_lm
bogomips : 5317.91
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
It seems that there is no avx here, does this mean this doesn't support
avx instructions ?
> Sent from my iPhone
> > On Jan 3, 2014, at 2:32 AM, "Jose Gavine Cueto" <pepedocs at gmail.com>
> > I haven't added it yet, because as of the moment I do not have an access
> > the built DPDK library I was using. I was just linking it with my DPDK
> > application.
> > I tried to debug it with GDB and disassembled it, the invalid instruction
> > was "vzeroupper" which occurs at rte_eal_init, somewhere when
> > pthreads.
> > Ok, I'll to debug more and get more information.
> > Thanks again,
> > Pepe
> > On Fri, Jan 3, 2014 at 6:26 PM, Thomas Monjalon
> > <thomas.monjalon at 6wind.com>wrote:
> >> 03/01/2014 11:09, Jose Gavine Cueto :
> >>> I am running a DPDK application in a guest VM which uses one VF. This
> >>> runs on top of the host that has an x540-at2 NIC and uses the ixgbe
> >> driver.
> >>> The issue was that every time I run the DPDK application in the VM it
> >>> errors an invalid instruction and stops there.
> >> First, have you added x540-at2 in ixgbe_type.h, ixgbe_api.c and
> >> rte_pci_dev_ids.h ?
> >> What is the invalid instruction ? Have you tried to debug it ?
> >> I don't know this NIC so I'm afraid you should debug it by yourself.
> >> Please, keep us informed if you make it working.
> >> --
> >> Thomas
> > --
> > To stop learning is like to stop loving.
To stop learning is like to stop loving.
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