I don't see wbs_cyc at the wb slave if the offset gets too big. Is that expected?

addr = 0x30000000 + 0;               // get cyc

addr = 0x30000000 + 0x000FFFFC;      // get cyc

addr = 0x30000000 + 0x000FFFFC + 4;  // no cyc

I can get around that but my bigger problem is that the slave ack isn't making it all the way back to VexRiscv. Able to get more ack's returned with this:

reg_wb_enable = -1;

Is this boundary special: 10000400? Seeing IFetch hung there with no ack.

This is probably the address bug in the management LiteX core

Yes, thanks. I did not see that issue in the repo. I will have to investigate the second issue with IFetch hanging.