Hey! Welcome to the project! This is not enough information for us to answer your question. How exactly are you building PyPy? What's the precise command line? What do you mean by "a different GC"? One of PyPy's GCs? Or one you wrote yourself? Can you point us to your fork with your code changes? Cheers, Carl Friedrich On 26.02.22 14:26, Elijah Okello wrote:

Hello Pypy Team,

I am trying to build pypy from Source and I keep on getting an Assertion error whenever I try to build it with a different gc other than the default.

The error I get is this [translation:ERROR] AssertionError Processing block:  block@62[index_362...] is a <class 'rpython.flowspace.flowcontext.SpamBlock'>  in (rpython.memory.support:262)AddressDeque.popleft  containing the following operations:        v3921 = getattr(self_10008, ('oldest_chunk'))        v3922 = getattr(v3921, ('items'))        result_37 = getitem(v3922, index_362)        v3923 = add(index_362, (1))        v3924 = setattr(self_10008, ('index_in_oldest'), v3923)  --end— How can I solve this issue? Please help me. Is there something I am not doing right??

Regards Okello Ivan Elijah Software Engineer

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