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SDE RTM emulation - small issue

Craig_D_
Beginner
159 Views

A small discrepancy between the behavior of the SDE and the behavior of a real (Skylake) processor with regards to RTM emulation (with -rtm-mode full).  For access violations such as writing to read-only memory during a transaction, the SDE will allow the transaction to continue and not cause an abort until the transaction attempts to commit; whereas in a real processor, the access violation causes an immediate abort.  

Not a major issue but thought I'd document it here. 

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1 Reply
MICHAEL_G_Intel1
Employee
159 Views

Hi Craig

You are correct.

There is a discrepancy  between SDE and HW.

SDE will attempt to write to the memory only on commit of the transaction.

We will look into this issue and will solve it.

Regards,

Michael

 

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