Hi Jason,

I used this command to build my program:

> arm-linux-gnueabi-gcc-4.9 -static -O3 foo.c util/m5/m5op_arm.S -o foo

Then, I used this one for creating the checkpoint:

> ./build/ARM/gem5.fast -d chkpt-dir -e -r configs/example/fs.py --script 
> util/rcS/foo.rcS

And this one for restarting from the checkpoint:

> ./build/ARM/gem5.fast -d chkpt-dir/timing -e -r configs/example/fs.py 
> --script util/rcS/foo.rcS --cpu-type timing --caches --checkpoint-dir 
> chkpt-dir -r 1

I just rebuilt the executable with m5_exit(0) and tested again, I got
the same warning. Note that this warning is also triggered when I try to
create a checkpoint.

On 02/01/2017 05:23 PM, Jason Lowe-Power wrote:
> Hi,
> 
> What is the command you're using to build the executable? I'm unable to
> reproduce this bug with the following command:
> 
> gcc -o hello hello.c util/m5/m5op_x86.o
> 
> I also tested for ARM.
> 
> It shouldn't be possible to compile without a parameter to m5_exit. Also,
> looking through the code, as long as you specify a delay of 0 everything
> should work. You *will* get the warning if you specify a delay other than
> 0, though.
> 
> Cheers,
> Jason
> 
> On Wed, Feb 1, 2017 at 4:17 AM Pierre-Yves Péneau <
> [email protected]> wrote:
> 
> Hi,
> 
> I get a warning [1] when I try to exit my simulation with m5_exit():
> 
>> "warn: exitSimLoop called with a delay and auto serialization. This is
> currently unsupported."
> 
> What I am doing is restoring a simulation at the entry of my ROI, then
> executing gem5 in FS mode and exiting at the end. My code looks like this:
> 
>>   m5_checkpoint(0,0);
>>   for (i = 0; i < N; i++)
>>   {
>>     ...
>>   }
>>   m5_exit();
> 
> I tried to use m5_exit() with no parameter or zero, the result is the
> same. So, I don't understand why gem5 is complaining about an exit
> delay. And what is auto serialization ?
> 
> Thank you.
> 
> 
> [1] http://grok.gem5.org/source/xref/gem5/src/sim/sim_events.cc#82
> 
> --
> +-------------------------------------------------------------+
> | Pierre-Yves Péneau - PhD student |  first.last at lirmm.fr  |
> | LIRMM / CNRS - SYSMIC team       |    + 33 4 67 41 86 33
> <+33%204%2067%2041%2086%2033>    |
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-- 
+-------------------------------------------------------------+
| Pierre-Yves Péneau - PhD student |  first.last at lirmm.fr  |
| LIRMM / CNRS - SYSMIC team       |    + 33 4 67 41 86 33    |
| Building 4 Office H2.2           |    http://walafc0.org    |
+-------------------------------------------------------------+

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