[dpdk-dev] dpdk-2.0.0: crash in ixgbe_recv_scattered_pkts_vec->_recv_raw_pkts_vec->desc_to_olflags_v

Gopakumar Choorakkot Edakkunni gopakumar.c.e at gmail.com
Tue Jun 30 20:28:19 CEST 2015
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Hi Thomas, Bruce,

Thanks for the responses. Please find my answers as below.

Thomas>> "You mean you are using SR-IOV from Amazon, right? Do you
have more hardware details?"

That is correct. I am attaching three files cpuinfo.txt lcpci.txt and
portconf.txt (just the port config that I am using, nothing special,
yanked off of l2fwd example). The two 82599 VF interfaces seen in
lspci output are the ones of interest - I use one of them in dpdk
mode.

Thomas>> Did you try to disable CONFIG_RTE_IXGBE_INC_VECTOR?

Thanks for the suggestion, I made that change and was giving it some
time. Now the result of that is not entirely black and white:
previously (in vector mode) my app used to Rx/Tx packets nicely
without any hiccups, but would crash in 10 minutes :). Now with this
suggested change, its been running for a while and doesnt crash, but
the Tx latency and Tx loss is so high (around 10% tx loss) that the
app is not doing a great job - but that might just be something that I
need to adapt to when using non-vector mode ? I will experiment on
that a bit more. So I "think" its fair to say that with the vector
disabled, theres no crash, but I need to chase this latency/loss now.

Thomas>> Not needed. A DPDK application is fast enough to do the job
in 10 minutes ;)

Haha, good one :). Thats where I want to get to eventually, but right
now some distance from it.

Bruce>> Can you perhaps isolate any further the root cause of the
issue. For example, does it only occur when you get three packets at
the receive ring wraps back around to zero?

I will try some more experiments, will read and understand this Rx
code a bit more to be able to answer the qn about whether ring wraps
around when the problem happens etc..

Rgds,
Gopa.


On Tue, Jun 30, 2015 at 9:08 AM, Thomas Monjalon
<thomas.monjalon at 6wind.com> wrote:
> 2015-06-30 08:49, Gopakumar Choorakkot Edakkunni:
>> I am starting to tryout dpdk-2.0.0 with a simple Rx routine very
>> similar to the l2fwd example - I am running this on a c3.8xlarge aws
>> sr-iov enabled vpc instance (inside the vm it uses ixgbevf driver).
>
> You mean you are using SR-IOV from Amazon, right?
> Do you have more hardware details?
>
>> Once in every 10 minutes my application crashes in the recieve path.
>> And whenever I check the crash reason its because it always has three
>> packets in the burst array (I have provided array size of 32) instead
>> of the four that it tries to collect in one bunch. And inside
>> desc_to_olflags_v(), theres the assumption that there are four
>> packets, and obviously it crashes trying to access the fourth buffer.
>
> Did you try to disable CONFIG_RTE_IXGBE_INC_VECTOR?
>
>> With a brief look at the code, I really cant make out how its
>> guaranteed that we will always have four descriptors fully populated ?
>> After the first iteration, the loop does break out if (likely(var !=
>> RTE_IXGBE_DESCS_PER_LOOP)), but how about the very first iteration
>> where we might not have four ?
>>
>> Any thoughts will be helpful here, trying to get my app working for
>> more than 10 minutes :)
>
> Not needed. A DPDK application is fast enough to do the job in 10 minutes ;)
>
-------------- next part --------------
root at ip-10-0-0-155:/home/ubuntu# cat /proc/cpuinfo 
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 0
cpu cores	: 8
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 1
cpu cores	: 8
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 2
cpu cores	: 8
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 3
cpu cores	: 8
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 4
cpu cores	: 8
apicid		: 8
initial apicid	: 8
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 5
cpu cores	: 8
apicid		: 10
initial apicid	: 10
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 6
cpu cores	: 8
apicid		: 12
initial apicid	: 12
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 7
cpu cores	: 8
apicid		: 14
initial apicid	: 14
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 8
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 0
cpu cores	: 8
apicid		: 32
initial apicid	: 32
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 9
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 1
cpu cores	: 8
apicid		: 34
initial apicid	: 34
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 10
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 2
cpu cores	: 8
apicid		: 36
initial apicid	: 36
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 11
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 3
cpu cores	: 8
apicid		: 38
initial apicid	: 38
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 12
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 4
cpu cores	: 8
apicid		: 40
initial apicid	: 40
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 13
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 5
cpu cores	: 8
apicid		: 42
initial apicid	: 42
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 14
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 6
cpu cores	: 8
apicid		: 44
initial apicid	: 44
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 15
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 7
cpu cores	: 8
apicid		: 46
initial apicid	: 46
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 16
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 0
cpu cores	: 8
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 17
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 1
cpu cores	: 8
apicid		: 3
initial apicid	: 3
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 18
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 2
cpu cores	: 8
apicid		: 5
initial apicid	: 5
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 19
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 3
cpu cores	: 8
apicid		: 7
initial apicid	: 7
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 20
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 4
cpu cores	: 8
apicid		: 9
initial apicid	: 9
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 21
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 5
cpu cores	: 8
apicid		: 11
initial apicid	: 11
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 22
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 6
cpu cores	: 8
apicid		: 13
initial apicid	: 13
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 23
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 7
cpu cores	: 8
apicid		: 15
initial apicid	: 15
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5586.78
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 24
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 0
cpu cores	: 8
apicid		: 33
initial apicid	: 33
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 25
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 1
cpu cores	: 8
apicid		: 35
initial apicid	: 35
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 26
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 2
cpu cores	: 8
apicid		: 37
initial apicid	: 37
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 27
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 3
cpu cores	: 8
apicid		: 39
initial apicid	: 39
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 28
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 4
cpu cores	: 8
apicid		: 41
initial apicid	: 41
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 29
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 5
cpu cores	: 8
apicid		: 43
initial apicid	: 43
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 30
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 6
cpu cores	: 8
apicid		: 45
initial apicid	: 45
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 31
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping	: 4
microcode	: 0x428
cpu MHz		: 2793.394
cache size	: 25600 KB
physical id	: 1
siblings	: 16
core id		: 7
cpu cores	: 8
apicid		: 47
initial apicid	: 47
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm xsaveopt fsgsbase smep erms
bogomips	: 5656.88
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

root at ip-10-0-0-155:/home/ubuntu# 

-------------- next part --------------
root at ip-10-0-0-155:/home/ubuntu# lspci 
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01)
00:02.0 VGA compatible controller: Cirrus Logic GD 5446
00:03.0 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01)
00:04.0 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01)
00:1f.0 Unassigned class [ff80]: XenSource, Inc. Xen Platform Device (rev 01)
root at ip-10-0-0-155:/home/ubuntu# 
-------------- next part --------------
struct rte_eth_conf port_conf = {
    .rxmode = {
        .mq_mode = ETH_MQ_RX_NONE,
        .split_hdr_size = 0,
        .header_split   = 0, /**< Header Split disabled */
        .hw_ip_checksum = 0, /**< IP checksum offload disabled */
        .hw_vlan_filter = 0, /**< VLAN filtering disabled */
        .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
        .hw_strip_crc   = 1, /**< CRC stripped by hardware */
    },
    .txmode = {
        .mq_mode = ETH_MQ_TX_NONE,
    },
};
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