Hi,
I am trying to get checkpoints working with ALPHA_SE and have run into some
problems. When I try to resume a checkpoint I get a fatal message in
src/mem/page_table.cc:110 fatal("PageTable::allocate: address 0x%x already
mapped", vaddr);. It appears that an address has already been mapped in the
page table Why would this happen? Has anyone at least tried making
checkpoint for a spec2000 benchmark and resuming it for ALPHA_SE? Perhaps I
am running code at the start of the binary after I restore the checkpoint?
-Richard
I make a checkpoint using:
./build/ALPHA_SE/m5.debug configs/example/se.py --max_checkpoints=2
--take_checkpoints="10000,100" --checkpoint_dir=./checkpoints
I then try to resume a checkpoint with a AtomicSimpleCPU by the command:
$m5-2.0b3*11:57:44=>./build/ALPHA_SE/m5.debug configs/example/se.py -r 1
--checkpoint_dir=./checkpoints
M5 Simulator System
Copyright (c) 2001-2006
The Regents of The University of Michigan
All Rights Reserved
M5 compiled Oct 23 2007 11:57:34
M5 started Tue Oct 23 12:15:07 2007
M5 executing on rickshin-2.local
command line: ./build/ALPHA_SE/m5.debug configs/example/se.py -r 1
--checkpoint_dir=./checkpoints
Global frequency set at 1000000000000 ticks per second
Restoring from checkpoint
fatal: PageTable::allocate: address 0x11ff92000 already mapped
@ cycle 10000
[allocate:build/ALPHA_SE/mem/page_table.cc, line 110]
Memory Usage: 0 KBytes
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