snoop_filter.cc:122: panic: panic condition (sf_item.requested & req_port).any() occurred: double request

[qqli579]

Hello：
I simulate the following architecture using Gem5's classic cache:
There are 2 clusters；
Each cluster has 4 O3CPU cores；
Each core has private L1ICache, L1DCache, and L2Cache， they are mostly_incl；
Each L2Cache has 2 banks， each bank is interleaved according to the low order address；
Two clusters share L3cache, which has 8 banks， each bank is interleaved according to the low order address，they are mostly_excl.
Each cluster has only one port connected to L3Bus。
When I simulated, the following exception occurred：
src/mem/snoop_filter.cc:122: panic: panic condition (sf_item.requested & req_port).any() occurred: double request :( SF value 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Has anyone encountered this situation before？