We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 23790

10.1 EDK - "ERROR:MDT - ERROR FROM TCL:- lwip () - child process exited abnormally"


I am using lwip 2.0. When I try to compile my design, the following errors occur:

"ERROR:MDT - Error while running "execs_generate" for processor ppc405_0...

ERROR:MDT - ERROR FROM TCL:- lwip () - child process exited abnormally

while executing

"exec bash -c "cd src;make all \"COMPILER_FLAGS=$compiler_flags\"

\"EXTRA_COMPILER_FLAGS=$extra_compiler_flags\" >& logs""

(procedure "::sw_lwip_v2_00_a::execs_generate" line 51)

invoked from within

"::sw_lwip_v2_00_a::execs_generate 39167188"

ERROR:MDT - Error while running "execs_generate" for processor ppc405_0..."


To trouble-shoot this issue, follow these steps:

1. Check whether the Ethernet used is supported with lwip. Supported MACs are listed in the document at the following location:


2. Check whether the MAC address is correctly set; check the document referenced above.

3. Make sure a forward slash "/" is used instead of a backward slash "\".

4. Refer to (Xilinx Answer 21823) for a similar problem with the plb_ethernet.

AR# 23790
Date 12/15/2012
Status Active
Type General Article