You can try immediately dropping a new checkpoint right after the old
checkpoint is loaded. i.e. call m5.checkpoint() before you even run
m5.simualte.
I must admit that I've never done this, but in theory it should work, and
any differences between the two might shed some light on the problem.
When I take a checkpoint in AtomicSimpleCPU at curTick=100015476500 (approx.
200,000,000 insts into the binary) in mcf, and resume execution in any CPU
model, I get an exit syscall (syscall trace included below) at cycle
100522711000 (approx 1014345 insts into execution). What is strange is that
if I run AtomicSimpleCPU through this point, I have no problems. Any ideas on
either the problem or how to debug?
-Richard
:syscall trace
100519102000: system.cpu: syscall read called w/arguments 3,5368799240,8192,7
100519102000: system.cpu: syscall read returns 18446744073709551615
100521401500: system.cpu: syscall obreak called w/arguments
5374902272,0,0,1048576
100521401500: global: Break Point changed to: 0X1405E8000
100521401500: system.cpu: syscall obreak returns 5374902272
100521680500: system.cpu: syscall close called w/arguments
0,4831387472,1,1048576
100521680500: system.cpu: syscall close returns 0
100521846000: system.cpu: syscall write called w/arguments
1,5368778616,119,1048576
100521846000: system.cpu: syscall write returns 119
100521893000: system.cpu: syscall close called w/arguments 1,4831387472,119,0
100521893000: system.cpu: syscall close returns 0
100522014000: system.cpu: syscall close called w/arguments
2,4831387472,0,1048576
100522014000: system.cpu: syscall close returns 18446744073709551615
100522187500: system.cpu: syscall close called w/arguments
3,4831387472,1,1048576
100522187500: system.cpu: syscall close returns 0
100522357000: system.cpu: syscall obreak called w/arguments
5368815616,0,0,1048576
100522357000: global: Break Point changed to: 0X14001A000
100522357000: system.cpu: syscall obreak returns 5368815616
100522623500: system.cpu: syscall sigprocmask called w/arguments
1,18446744073709547831,0,0
warn: ignoring syscall sigprocmask(1, 18446744073709547831, ...)
100522623500: system.cpu: syscall sigprocmask returns 0
100522711000: system.cpu: syscall exit called w/arguments
18446744073709551615,5368739848,2,0
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