Dear All,
I am getting a syscall unimplemented error while running the simulation. For
some syscall it gives warning and proceed with the simulation but for some it
stopped there itself. Below are the syscall for which my simulation stopped.
fadvise64
timer_create
timer_settime
timer_gettime
Da,
Do you encounter the segfault only when restoring from a checkpoint? That is,
if you do not use checkpoints can any DaCapo benchmark successfully complete
under one of the simple CPU models (and not just KVM CPU)?
If so, you may want to get a syscall trace (e.g., using strace) to see what
Hi,
I would think that it's OK to ignore the "prefetch_nta is unimplemented"
since it should just give hints to the cache. If you don't see *any* other
unimplemented instruction warning then I would guess that unimplemented
instructions is not the problem.
Another possibility is something is
Hey Jason,
There are a bunch of "warn: instruction 'prefetch_nta' unimplemented" in
atomic modes, during which the java benchmarks don't crash. However, there
is no these kind of warnings during timing mode. Does it imply that
unimplemented instructions don't cause the problem? Any clues or
Hello,
Are you seeing any warnings like "warn: Instruction XXX not implemented"?
There are many X86 SIMD instructions that are currently unimplemented. I
would bet that your application is using some of those instructions and
getting 0's as the output instead of the correct value.
The "right"
To clarify, "SIGSEGV and null exceptions " happens to the benchmark suite,
not gem5. Gem5 is running without errors. But in the system.pc.com_1.device
files, I observe that most of the benchmarks crash due to SIGSEGV or null
exceptions.
Example:
"
x/system.pc.com_1.device
buffers
1 #
Hey guys,
I am testing a java benchmark suite, dacapo, on gem5 with fs mode.
Unfortunately, I encounter a lot of SIGSEGV and null exceptions during
timing mode after restarting from the checkpoints.
I am using linux kernel v4.8.13 and ubuntu-server-16.04.1 with
oracle jdk v8.0_171-b11. To
