[gem5-users] GEM5 SE mode with HMC memory and cache run fails with "panic condition !(pkt->isRead() || pkt->isWrite()) occurred: Should only see read and writes at memory controller"

[yangyuqing--- via gem5-users]

If i use this command, problem happens: 
./build/X86/gem5.opt configs/example/se.py --fast-forward 22900000 -I 
1000000000 --cpu-type=TimingSimpleCPU --cpu-clock=1GHz --caches --l2cache 
--l1d_size=64kB --l1i_size=32kB --l2_size=256kB --l1d_assoc=8 --l1i_assoc=8 
--mem-type=HMC_2500_1x32 --hmc-dev-vault-size=256MB -c 
./tests/test-progs/pagerank/pagerank

While I change l2 cache size to 2MB, it runs correctly:
./build/X86/gem5.opt configs/example/se.py --fast-forward 22900000 -I 
1000000000 --cpu-type=TimingSimpleCPU --cpu-clock=1GHz --caches --l2cache 
--l1d_size=64kB --l1i_size=32kB --l2_size=2MB --l1d_assoc=8 --l1i_assoc=8 
--mem-type=HMC_2500_1x32 --hmc-dev-vault-size=256MB -c 
./tests/test-progs/pagerank/pagerank

It seems that cache size is the point, but who can tell me why?

Note: pagerank is my own test program, it runs successfully when the system has 
no cache.
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