Hi all, Just to follow up, because I can see that there have been some issues with not including all of the requisite issues in other threads, here is the full output from what I described above.
gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 version 21.1.0.0 gem5 compiled Sep 7 2021 19:28:16 gem5 started Sep 8 2021 09:09:11 gem5 executing on sam-Precision-Tower-5810, pid 445665 command line: build/X86/gem5.opt -d $CURR_DIR/debug $CURR_DIR/configs/example/fs.py --caches --l2cache --mem-type DDR3_1600_8x8 --mem-size 2GB --meta-size 512kB --num-cpus 4 --disk-image $DISK_PATH --kernel $KERNEL_PATH --cpu-type $CPU_TYPE --script=$SCRIPT_PATH --l2_size=1MB --take-checkpoints=10000,20000 warn: iobus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: bridge.master is deprecated. `master` is now called `mem_side_port` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: bridge.slave is deprecated. `slave` is now called `cpu_side_port` warn: iobus.master is deprecated. `master` is now called `mem_side_ports` warn: apicbridge.slave is deprecated. `slave` is now called `cpu_side_port` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: apicbridge.master is deprecated. `master` is now called `mem_side_port` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: iobus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.master is deprecated. `master` is now called `mem_side_ports` warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` Global frequency set at 1000000000000 ticks per second warn: system.workload.acpi_description_table_pointer.rsdt adopting orphan SimObject param 'entries' [Detaching after fork from child process 445724] [Detaching after fork from child process 445725] build/X86/mem/mem_interface.cc:792: warn: DRAM device capacity (8192 Mbytes) does not match the address range assigned (2048 Mbytes) build/X86/sim/kernel_workload.cc:46: info: kernel located at: /home/sam/Desktop/clean-gem5/gem5/_dist/binaries/x86_64-vmlinux-2.6.22.9 0: system.pc.south_bridge.cmos.rtc: Real-time clock set to Sun Jan 1 00:00:00 2012 system.pc.com_1.device: Listening for connections on port 3464 0: system.remote_gdb: listening for remote gdb on port 7008 build/X86/dev/intel_8254_timer.cc:125: warn: Reading current count from inactive timer. **** REAL SIMULATION **** build/X86/sim/simulate.cc:107: info: Entering event queue @ 0. Starting simulation... Exiting @ tick 10000 because simulate() limit reached build/X86/sim/simulate.cc:107: info: Entering event queue @ 10000. Starting simulation... At this point, the program hangs, and occupies the ports until I manually reset it even after killing the terminal process. Does this sound like something anyone has seen before or can replicate? I feel like I'm going crazy, and am not even sure how to debug this... Best, Sam On Tue, Sep 7, 2021 at 9:56 AM Samuel Thomas <samuel_tho...@brown.edu> wrote: > Hi all, > > This is a very basic and perhaps silly question. I’m trying to take > checkpoints in a gem5 program so that I can debug a particular segment of > the execution more efficiently, but it seems that the flag seems to pause > the execution of the environment and not actually take any checkpoints. > > I’m currently working from commit 87c121fd954ea5a6e6b0760d693a2e744c2200de > (i.e., v21.1.0.0) > > And am running the following command line: > > build/X86/gem5.opt -d $CURR_DIR/debug $CURR_DIR/configs/example/fs.py > --caches --l2cache --mem-type DDR3_1600_8x8 --mem-size 2GB --meta-size > 512kB --num-cpus 4 --disk-image $DISK_PATH --kernel $KERNEL_PATH --cpu-type > $CPU_TYPE --script=$SCRIPT_PATH --l2_size=1MB --take-checkpoints=10000,20000 > > I assumed that --take-checkpoints was the proper way to do this, but it > seems that the execution pauses at this point and no checkpoint files are > produced in the out directory. Is there something that I’m doing wrong or a > better way to go about doing this? > > Thanks for your help! > > Best, > Sam
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