Aplication appear edma error used dm8168 , Can you help me !!!

Hi Zhigang,

Are you using EZSDK 5.05.02.00? Are you using DM816x TI EVM or custom board? Are you using the default edma test or you made some changes?

ti-ezsdk_dm816x-evm_5_05_02_00/example-applications/linux-driver-examples-psp04.04.00.01/edma/

processors.wiki.ti.com/.../TI81XX_PSP_EDMA_Driver_User_Guide

Regards,
Pavel

Hi, Pavel:

Yes , we used the newest ezsdk 5.05.02.00(downloaded from ti website) , we used the board desiged by us similar to to TI EVM board, Our aplication is used ti edma demo in ti-ezsdk_dm816x-evm_5_05_02_00/example-applications/linux-driver-examples-psp04.04.00.01/edma/ , the error is not appear always, we run the aplication in 48 hour, Maybe appear one time. So very hard to find the reason.

thank you!

Zhigang,

Can you try to reproduce this issue on the DM816x TI EVM?

Can you also try with the latest version of the linux kernel code base?

Make sure that you are removing the module by doing rmmod edma_test before doing insmod again. Also verify whether rmmod is successful. 

Regards,
Pavel

Hi, Pavel
verify whether rmmod is successful.

root@dm816x-evm:~# lsmod
Module Size Used by
cmemk 20287 0
edma_test 2414 0
sii9022a 5386 0
ti81xxhdmi 17685 0
ti81xxvin 22529 0
gv7601 3542 2
sii9135 3867 0
tvp7002 8089 0
ti81xxvo 21210 0
ti81xxfb 21979 0
vpss 75009 5 sii9022a,ti81xxhdmi,ti81xxvin,ti81xxvo,ti81xxfb
syslink 1128719 0
ipv6 209855 12
root@dm816x-evm:~# rmmod edma_test.ko
ti81xx_edma: Exiting TI81XX EDMA3 Module
root@dm816x-evm:~# insmod edma_test.ko
root@dm816x-evm:~# lsmod
Module Size Used by
edma_test 2414 0
cmemk 20287 0
sii9022a 5386 0
ti81xxhdmi 17685 0
ti81xxvin 22529 0
gv7601 3542 2
sii9135 3867 0
tvp7002 8089 0
ti81xxvo 21210 0
ti81xxfb 21979 0
vpss 75009 5 sii9022a,ti81xxhdmi,ti81xxvin,ti81xxvo,ti81xxfb
syslink 1128719 0
ipv6 209855 12
root@dm816x-evm:~#