KNI Kernal crash while release the resouces

Question

Hi ,

  I am using dpdkV20.05 version. I am getting the below error while releasing the KNI resources before closing the application. Can you please help here to resolve the kernel crash .?

  Error:

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Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.141196] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.150715] Mem abort info:
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.153922]   ESR = 0x96000004
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.156967]   Exception class = DABT (current EL), IL = 32 bits
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.163242]   SET = 0, FnV = 0
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.166447]   EA = 0, S1PTW = 0
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.169918] Data abort info:
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.172790]   ISV = 0, ISS = 0x00000004
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.177325]   CM = 0, WnR = 0
Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.180524] user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000a08a76fa

Jul 21 14:12:31 Ramanujan-64-1F-B9R8F31-36 user.alert kernel: [55963.187128] [0000000000000010] pgd=0000000000000000

Answer 1

执行KNI Release的时候，流量停了吗？

Comments

in exit handkler below things handled
1)rte_kni_release ()
2)rte_eth_dev_stop()
3)rte_kni_close()
   Please let me know if anything needs to add . Thanks !!!

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Traffic is flowing continuously in between call the exit hanlder to relese the kni resources .