If I comment out the line below, it no longer crashes:
$ git diff
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index e5b0f455a..a5fba9879 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -1756,7 +1756,7 @@ clock_gettimeFunc(SyscallDesc *desc, int num, Process
*p, ThreadContext *tc)
tp->tv_sec = TheISA::htog(tp->tv_sec);
tp->tv_nsec = TheISA::htog(tp->tv_nsec);
- tp.copyOut(tc->getMemProxy());
+ // tp.copyOut(tc->getMemProxy());
return 0;
}
On Tue, May 15, 2018 at 7:33 PM, Jason Lowe-Power <[email protected]>
wrote:
> You can try using debug flags. SyscallVerbose seems useful.
>
> It's possible that you'll need to update the implementation of the clock
> syscall.
>
> Jason
>
> On Tue, May 15, 2018 at 6:50 AM Øyvind Harboe <[email protected]>
> wrote:
>
>> I've tried with "-static" as well. Same result.
>>
>> When trying on a different machine, there result was slightly different.
>> I guess memory corruption could pan out slightly differently and that this
>> difference is not of any particular interest.
>>
>> $ ../gem5/build/X86/gem5.opt --listener-mode=off
>> ../gem5/configs/example/se.py -c a.out
>> gem5 Simulator System. http://gem5.org
>> gem5 is copyrighted software; use the --copyright option for details.
>>
>> gem5 compiled May 15 2018 06:42:21
>> gem5 started May 15 2018 06:48:33
>> gem5 executing on Mega-Minion, pid 10006
>> command line: ../gem5/build/X86/gem5.opt --listener-mode=off
>> ../gem5/configs/example/se.py -c a.out
>>
>> Global frequency set at 1000000000000 ticks per second
>> warn: DRAM device capacity (8192 Mbytes) does not match the address range
>> assigned (512 Mbytes)
>> warn: Sockets disabled, not accepting gdb connections
>> **** REAL SIMULATION ****
>> info: Entering event queue @ 0. Starting simulation...
>> info: Increasing stack size by one page.
>> warn: readlink() called on '/proc/self/exe' may yield unexpected results
>> in various settings.
>> Returning '/home/jenkins/ascenium/a.out'
>> warn: ignoring syscall access(...)
>> fatal: readBlob(0x4080ae651, ...) failed
>> Memory Usage: 97236700 KBytes
>>
>>
>>
>>
>> On Mon, May 14, 2018 at 6:25 PM, Jason Lowe-Power <[email protected]>
>> wrote:
>>
>>> Hello,
>>>
>>> Have you compiled your binary statically? I believe dynamically linked
>>> executables will only work if the host and the guest are *exactly* the same
>>> (e.g., both x86-64 in this case).
>>>
>>> Jason
>>>
>>> On Mon, May 14, 2018 at 7:10 AM Øyvind Harboe <[email protected]>
>>> wrote:
>>>
>>>> I'm getting a "bad_alloc" from the config/examples/se.py script when I
>>>> try to run the small C application below that calls clock().
>>>>
>>>> Any pointers on what's going on would be most welcome.
>>>>
>>>> Please find a transcript of how I've tested:
>>>>
>>>> I first test with 64 bit, then with 32 bit x86. 64 bit x86 works fine.
>>>>
>>>> $ cd gem5
>>>> $ git describe --tags
>>>> copyright_update-7291-gce00e6042
>>>> $ cat test.c
>>>> #include <time.h>
>>>>
>>>> int main(int argc, char **argv)
>>>> {
>>>> clock();
>>>> return 0;
>>>> }
>>>> $ gcc ./test.c
>>>> $ build/X86/gem5.opt configs/example/se.py -c ./a.out
>>>> gem5 Simulator System. http://gem5.org
>>>> gem5 is copyrighted software; use the --copyright option for details.
>>>>
>>>> gem5 compiled May 14 2018 14:59:03
>>>> gem5 started May 14 2018 16:00:16
>>>> gem5 executing on davos, pid 31640
>>>> command line: build/X86/gem5.opt configs/example/se.py -c ./a.out
>>>>
>>>> Global frequency set at 1000000000000 ticks per second
>>>> warn: DRAM device capacity (8192 Mbytes) does not match the address
>>>> range assigned (512 Mbytes)
>>>> 0: system.remote_gdb: listening for remote gdb on port 7000
>>>> **** REAL SIMULATION ****
>>>> info: Entering event queue @ 0. Starting simulation...
>>>> warn: ignoring syscall access(...)
>>>> warn: ignoring syscall access(...)
>>>> warn: ignoring syscall access(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> Exiting @ tick 91225000 because exiting with last active thread context
>>>>
>>>>
>>>> $ gcc -m32 ./test.c
>>>> $ build/X86/gem5.opt configs/example/se.py -c ./a.out
>>>> gem5 Simulator System. http://gem5.org
>>>> gem5 is copyrighted software; use the --copyright option for details.
>>>>
>>>> gem5 compiled May 14 2018 14:59:03
>>>> gem5 started May 14 2018 16:00:23
>>>> gem5 executing on davos, pid 31648
>>>> command line: build/X86/gem5.opt configs/example/se.py -c ./a.out
>>>>
>>>> Global frequency set at 1000000000000 ticks per second
>>>> warn: DRAM device capacity (8192 Mbytes) does not match the address
>>>> range assigned (512 Mbytes)
>>>> 0: system.remote_gdb: listening for remote gdb on port 7000
>>>> **** REAL SIMULATION ****
>>>> info: Entering event queue @ 0. Starting simulation...
>>>> warn: ignoring syscall access(...)
>>>> warn: ignoring syscall access(...)
>>>> warn: ignoring syscall access(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> warn: ignoring syscall mprotect(...)
>>>> Traceback (most recent call last):
>>>> File "<string>", line 1, in <module>
>>>> File "/home/oyvind/gem5/src/python/m5/main.py", line 435, in main
>>>> exec filecode in scope
>>>> File "configs/example/se.py", line 286, in <module>
>>>> Simulation.run(options, root, system, FutureClass)
>>>> File "/home/oyvind/gem5/configs/common/Simulation.py", line 712, in
>>>> run
>>>> exit_event = benchCheckpoints(options, maxtick, cptdir)
>>>> File "/home/oyvind/gem5/configs/common/Simulation.py", line 268, in
>>>> benchCheckpoints
>>>> exit_event = m5.simulate(maxtick - m5.curTick())
>>>> File "/home/oyvind/gem5/src/python/m5/simulate.py", line 176, in
>>>> simulate
>>>> return _m5.event.simulate(*args, **kwargs)
>>>> MemoryError: std::bad_alloc
>>>>
>>>>
>>>>
>>>> --
>>>> Øyvind Harboe, General Manager, Zylin AS, +47 917 86 146
>>>> _______________________________________________
>>>> gem5-users mailing list
>>>> [email protected]
>>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>
>>>
>>> _______________________________________________
>>> gem5-users mailing list
>>> [email protected]
>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>
>>
>>
>>
>> --
>> Øyvind Harboe, General Manager, Zylin AS, +47 917 86 146
>> _______________________________________________
>> gem5-users mailing list
>> [email protected]
>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>
>
> _______________________________________________
> gem5-users mailing list
> [email protected]
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>
--
Øyvind Harboe, General Manager, Zylin AS, +47 917 86 146
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