https://community.nxp.com/t5/i-MX-Processors/Linux-kernel-debugging-on-i-MX8-Quad-Max-MEK-board-using/m-p/1759531#M215936 <P>pls refer to the enclosed file and check if your debug steps are correct or not</P> Mon, 20 Nov 2023 04:32:04 GMT joanxie 2023-11-20T04:32:04Z https://community.nxp.com/t5/i-MX-Processors/Linux-kernel-debugging-on-i-MX8-Quad-Max-MEK-board-using/m-p/1757444#M215749 <P>Hello<BR /><BR />I am trying to debug Linux kernel on IMX8QaudMax MEK board. I built image using Yocto Project. I am using Kirkstone 5.15. I have configured kernel to enable debug symbols (works fine with simulator, but I can only load vmlinux to simulator since I don't have license for simulator). I connected Lauterbach to JTAG connector over JTAG- GEN2 Adapter Card that came with my board. I am using ARMv8-A/R probe.<BR /><BR />The problem happens when I try to attach. Board just reboots and I get next warning:<BR /><STRONG><SPAN class="">Warning: CO:0 Erros occurred during initialization of master core, error=0x8c </SPAN></STRONG><SPAN class=""><BR /><BR /></SPAN>I tried to attach to the board when board is set to boot from SD card, but SD card is not inserted. I would expect to get bus error, but I am getting this same warning...<BR />I have also custom board that uses imx8qm and I can use same image, and on custom board I am able to debug, everything works fine.<BR /><BR />My question is, should I apply some HW patch to IMX8QuadMax MEK board to enable debugging using JTAG? I have two MEK boards and I have same behavior with both boards...<BR />I really have never seen this warning. Does anyone have any hints? Thanks!<BR />Best regards,<BR />Vanja</P> Wed, 15 Nov 2023 08:12:55 GMT https://community.nxp.com/t5/i-MX-Processors/Linux-kernel-debugging-on-i-MX8-Quad-Max-MEK-board-using/m-p/1757444#M215749 vzeric 2023-11-15T08:12:55Z https://community.nxp.com/t5/i-MX-Processors/Linux-kernel-debugging-on-i-MX8-Quad-Max-MEK-board-using/m-p/1759531#M215936 <P>pls refer to the enclosed file and check if your debug steps are correct or not</P> Mon, 20 Nov 2023 04:32:04 GMT https://community.nxp.com/t5/i-MX-Processors/Linux-kernel-debugging-on-i-MX8-Quad-Max-MEK-board-using/m-p/1759531#M215936 joanxie 2023-11-20T04:32:04Z https://community.nxp.com/t5/i-MX-Processors/Linux-kernel-debugging-on-i-MX8-Quad-Max-MEK-board-using/m-p/1763094#M216315 <P>I followed all steps from document you sent me and still I have same issue. But I made some progress with updating Trace32 to last supported version for my license. Warning disappeared.<BR />Anyway thank you, I appreciate your help, this document is really helpful!<BR />Best regards,<BR />Vanja</P> Fri, 24 Nov 2023 06:15:55 GMT https://community.nxp.com/t5/i-MX-Processors/Linux-kernel-debugging-on-i-MX8-Quad-Max-MEK-board-using/m-p/1763094#M216315 vzeric 2023-11-24T06:15:55Z