[dpdk-dev] Helloworld dpdk app is crashing

["Shravan Raj (shrraj)" <shrraj@cisco.com>]

Hi All,

    I compiled helloworld app in dpdk-19.11.1 stable version and tried to run . The app is crashing with panic message.

  Logs:


Linux(debug)# ./helloworld -l 0-3 -n 4
EAL: Detected 8 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: Probing VFIO support...
EAL: Cannot get a virtual area: Cannot allocate memory
EAL: Cannot reserve memory
EAL: Cannot allocate VA space for memseg list, retrying with different page size
EAL: Cannot allocate VA space on socket 0
EAL: FATAL: Cannot init memory
EAL: Cannot init memory
PANIC in main():
Cannot init EAL
5: [./helloworld() [0x81b9a12]]
4: [/lib/libc.so.6(__libc_start_main+0xdd) [0x4d677d0d]]
3: [./helloworld() [0x80c30e5]]
2: [./helloworld(__rte_panic+0x2f) [0x80b1ea9]]
1: [./helloworld(rte_dump_stack+0x17) [0x8384887]]
Aborted


   Below are my configs


  1.  Compiled app for 32 bit.
  2.  GCC version is 4.9

Created hugepages as below,

echo 1024 | sudo tee /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
sudo sysctl -w vm.nr_hugepages=1024
mkdir -p /mnt/huge_2mb
sudo mount -t hugetlbfs nodev /mnt/huge_2mb -o pagesize=2MB

Linux(debug)# cat /proc/meminfo | grep Huge
HugePages_Total:    1024
HugePages_Free:     1024
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB

Thanks and Regards
   Shravan S