[dpdk-dev] mbuf autotest fails with 19.11-rc3

[Olivier Matz]

Hi Jerin,

On Thu, Nov 21, 2019 at 12:24:24PM +0000, Jerin Jacob Kollanukkaran wrote:
> mbuf autotest fails with 19.11-rc3
> 
> $ echo "mbuf_autotest" | sudo ./build/app/test/dpdk-test -c 0x3
> 
> EAL: Detected 56 lcore(s)
> EAL: Detected 2 NUMA nodes
> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
> EAL: Selected IOVA mode 'PA'
> EAL: No available hugepages reported in hugepages-1048576kB
> EAL: Probing VFIO support...
> EAL: PCI device 0000:01:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> EAL: PCI device 0000:01:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> APP: HPET is not enabled, using TSC as default timer
> RTE>>mbuf_autotest
> Test mbuf dynamic fields and flags
> Reserved fields:
> Reserved flags:
> Free space in mbuf (0 = free, value = zone alignment):
>   0000: 00 00 00 00 00 00 00 00
>   0008: 00 00 00 00 00 00 00 00
>   0010: 00 00 00 00 00 00 00 00
>   0018: 00 00 00 00 00 00 00 00
>   0020: 00 00 00 00 00 00 00 00
>   0028: 00 00 00 00 00 00 00 00
>   0030: 00 00 00 00 00 00 00 00
>   0038: 00 00 00 00 00 00 00 00
>   0040: 00 00 00 00 00 00 00 00
>   0048: 00 00 00 00 00 00 00 00
>   0050: 00 00 00 00 00 00 00 00
>   0058: 00 00 00 00 00 00 00 00
>   0060: 00 00 00 00 00 00 00 00
>   0068: 00 00 00 00 00 00 00 00
>   0070: 10 10 10 10 10 10 10 10
>   0078: 10 10 10 10 10 10 10 10
> dynfield: offset=112, offset2=114, offset3=120
> dynflag: flag=23, flag2=24, flag3=40
> Reserved fields:
>   name=test-dynfield offset=112 size=1 align=1 flags=0
>   name=test-dynfield2 offset=114 size=2 align=2 flags=0
>   name=test-dynfield3 offset=120 size=1 align=1 flags=0
> Reserved flags:
>   name=test-dynflag bitnum=23 flags=0
>   name=test-dynflag2 bitnum=24 flags=0
>   name=test-dynflag3 bitnum=40 flags=0
> Free space in mbuf (0 = free, value = zone alignment):
>   0000: 00 00 00 00 00 00 00 00
>   0008: 00 00 00 00 00 00 00 00
>   0010: 00 00 00 00 00 00 00 00
>   0018: 00 00 00 00 00 00 00 00
>   0020: 00 00 00 00 00 00 00 00
>   0028: 00 00 00 00 00 00 00 00
>   0030: 00 00 00 00 00 00 00 00
>   0038: 00 00 00 00 00 00 00 00
>   0040: 00 00 00 00 00 00 00 00
>   0048: 00 00 00 00 00 00 00 00
>   0050: 00 00 00 00 00 00 00 00
>   0058: 00 00 00 00 00 00 00 00
>   0060: 00 00 00 00 00 00 00 00
>   0068: 00 00 00 00 00 00 00 00
>   0070: 00 01 00 00 04 04 04 04
>   0078: 00 01 02 02 04 04 04 04
> cannot allocate mbuf pool
> Test Failed

Could you please share some details about your configuration?
(amount of memory, arch, ...)

On my platform the test works, except if I use a very low amount
of memory (few MBs).

Thanks,
Olivier