openocd message Not full dbg stub table 1 of 2

[jsam589]

I am just starting to work with JTAG debugging. I am trying to demonstrate basic operation with command line. I now successfully get openocd and gdb running. I can reset and break at app_main, then step through lines of code. However, I see a warning in the openocd window:

Code: Select all

Info : Set GDB target to 'esp32.cpu0'
Info : esp32.cpu1: Target halted, PC=0x4020BDC2, debug_reason=00000000
Warn : Not full dbg stub table 1 of 2
Warn : Not full dbg stub table 1 of 2

What are those warnings and how can they be resolved?
Thanks.