Hi Gabe,
I was trying to dig through the RegClass code earlier to figure out why the
value is -1 for this instruction, and the only thing that I can think of is
HINT_NOP needs a RegClass value set for it, but it isn't set for some
reason (which is not 100% clear to me). You know this code much be
I realize this is probably a hard question to answer with Exec being
broken, but do you know what instruction is causing the problem? HINT_NOP?
Probably the first thing that someone should do (if they haven't already)
is to run this under gdb and see what the backtrace looks like, since that
would
Thanks Gabe. Good catch about the actual value -- I just saw a negative
number and assumed -1, whoops. Based on what Nirmit is seeing, it seems
like HINT_NOP or MOV_R_I must be the instruction causing the fault, but
yeah a backtrace will probably help confirm.
Nirmit, can you please try running
Hi Matt, Gabe,
Running in the develop branch the code, seems to run without any errors. I
suppose this is due to the fact that things have been reworked in develop.
The backtrace generated by the debug build on the stable branch is:
7335000: system.cpu: T0 : 0x7801bbdd @_end+140737354234813
Hey Nirmit, thanks for the backtrace, but could you please run this under
gdb and get the backtrace that way? It will figure out what the function
names are, etc, where gem5's built in backtrace just has offsets.
Gabe
On Thu, Dec 2, 2021 at 3:37 PM Nirmit Jallawar wrote:
> Hi Matt, Gabe,
>
>
>
Hi Gabe,
Here is the backtrace using gdb:
7335000: system.cpu: T0 : 0x7801bbdd @_end+140737354234813. 4 :
CALL_NEAR_I : wrip t7, t1 : IntAlu :
7447000: system.cpu: T0 : 0x7801d080 @_end+140737354240096: hint
7447000: system.cpu: T0 : 0x7801d080 @_end+140737354240096. 0 : HI
I think you want this change:
https://gem5-review.googlesource.com/c/public/gem5/+/49183
On Fri, Dec 3, 2021 at 4:26 PM Nirmit Jallawar wrote:
> Hi Gabe,
>
>
>
> Here is the backtrace using gdb:
>
>
>
> 7335000: system.cpu: T0 : 0x7801bbdd @_end+140737354234813. 4 :
> CALL_NEAR_I : wrip t
+Bobby Bruce
On Fri, Dec 3, 2021 at 6:45 PM Gabe Black wrote:
> I think you want this change:
>
> https://gem5-review.googlesource.com/c/public/gem5/+/49183
>
> On Fri, Dec 3, 2021 at 4:26 PM Nirmit Jallawar wrote:
>
>> Hi Gabe,
>>
>>
>>
>> Here is the backtrace using gdb:
>>
>>
>>
>> 7335000:
Hi all,
After implementing the change linked, an assertion about the size seems to fail.
assertion=0x56fd09e8 "size == 1 || size == 2 || size == 4 || size == 8",
file=0x56fd0870 "build/X86/arch/x86/insts/static_inst.cc", line=144,
I have linked the backtrace below:
9249000: system.cpu: