01-17-2017 02:50 AM
I'm experiencing some issues with ethernet in a ZC702 board.
The issue rises when I try to debug an application remotely.
When gdb in the host machine tries to read some files in the target through NFS, I get some error messages.
macb e000b000.ethernet eth0: DMA bus error: HRESP not OK macb e000b000.ethernet eth0: DMA bus error: HRESP not OK macb e000b000.ethernet eth0: DMA bus error: HRESP not OK ...
Then NFS stalls and any subsequent operation over nfs hangs.
I am using linux 4.6 from the 2016.3 xilinx release.
01-17-2017 05:59 AM
@afilgueras Just to make sure the Ethernet interface ion the board is fine, did you run the BIST test for Ethernet?
01-17-2017 06:58 AM
Check below Answer Records. They may help to find debug clues
https://www.xilinx.com/support/answers/54012.html (In case if board problems exists)
01-17-2017 08:38 AM
I've set up an older kernel (3.19) that I used some time ago.
When using this kernel, everything works fine so it does not look to me like a HW failure.
I'm using the same bitstream, device tree and bootloader. I only changed the linux image
I also checked the suggested answer records, but I could not see anything useful :(
01-18-2017 03:23 AM
I've been digging a little more in this problem.
Checking dmesg I found some suspicious messages
init: idmapd main process (1807) terminated with status 1 init: idmapd main process ended, respawning init: idmapd main process (1836) terminated with status 1 init: idmapd main process ended, respawning ... init: idmapd main process (2059) terminated with status 1 init: idmapd respawning too fast, stopped
The first time I access a nfs file (zc702 is the nfs server):
NFSD: unable to generate recoverydir name (-2). NFSD: disabling legacy clientid tracking. Reboot recovery will not function correctly!
I think this can be somehow related as the error seems to be triggered when gdb accesses some files through NFS.
09-21-2018 09:25 PM
I am using xillinx linux on with xc7z020clg400-1 part.
Kernel is Linux-4.9.0- xillinx.
when i try to download any file from ftp halts and below error is shown on console.
macb e000b000. ethernet eth0: DMA bus error: HRESP not ok.
i have already check with solution mentioned on below site
can you please help me out to resolve this issue.
02-12-2019 04:35 PM
02-13-2019 01:54 AM