Hello everyone, I am trying to implement a cache with two tag and data storage. E.g in base.hh BaseTags *tags1; BaseTags *tags2;
When a cache receives a request or response, it will always access tags1 first, and if tags1 is full, a cache block in tags1 will be moved to tags2, and a victim in tag2s will be write back. Currently I am receiving the following error message: build/X86/mem/snoop_filter.cc:146: panic: panic condition (sf_item.holder & req_port).none() occurred: requestor 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 is not a holder :( SF value 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 It seems that the snoop filter does not think my l1i cache has the specific cache block that it is trying to writeback. My questions is: How do inconsistency between the cache and snoop filter could happen? Regards, Zelong Li
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