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# Detailed Routing abort on libc.so.6
Tool: Detailed Routing
Subcategory: Crash report
## Conversation
### marcopoles
Hi ,
I'm working on tsmc 40nm porting and the flow stops to work on detailed routing with this error:
Do you have any suggestion about the problem?
Thanks
PS: working on not open source PDK I can't submit a testcase
### maliberty
@osamahammad21 any guesses?
### osamahammad21
@marcopoles Could you build openroad in DEBUG mode so that I can locate exactly at which line does this happen?
### marcopoles
Hi, here the new output:
<img width="883" alt="image" src="https://github.com/The-OpenROAD-Project/OpenROAD/assets/24896919/bcd2041d-b033-47e4-a166-9304b0c63bfc">
### osamahammad21
@refaay Could you start a PR to ignore via definitions that include masterslice layers in DRT?
### refaay
Submitted PR #4149 to ignore masterslice vias in drt.
PR #4149 merged.
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